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235 lines
132 KiB
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235 lines
132 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="F01D" definition-exists="true" date-revised="2019-05-01" status="published"><classification-symbol>F01D</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES </text><reference><text>machines or engines for liquids <class-ref scheme="cpc">F03</class-ref>; non-positive displacement pumps <class-ref scheme="cpc">F04D</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass <u>covers</u>: <subnote type="bullet"><note-paragraph>non-positive-displacement engines for elastic fluids, e.g. steam turbines; </note-paragraph><note-paragraph>non-positive-displacement engines for liquids and elastic fluids; </note-paragraph><note-paragraph>non-positive-displacement machines for elastic fluids; </note-paragraph><note-paragraph>non-positive-displacement machines for liquids and elastic fluids.</note-paragraph></subnote></note-paragraph><note-paragraph>Attention is drawn to the Notes preceding class <class-ref scheme="cpc">F01</class-ref>, especially as regards the definitions of "reaction type", e.g. with airfoil-like blades, and "impulse type", e.g. bucket turbines.</note-paragraph></note><note type="warning"><note-paragraph>In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="F01D1/00" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01D1/00" definition-exists="true" ipc-concordant="F01D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-positive-displacement machines or engines, e.g. steam turbines </text><reference><text>wit working-fluid flows in opposite axial directions for balancing axial thrust <class-ref scheme="cpc">F01D3/02</class-ref>; with other than pure rotation <class-ref scheme="cpc">F01D23/00</class-ref>; turbines characterised by their use in special steam systems, cycles, or processes, regulating devices therefor <class-ref scheme="cpc">F01K</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D1/02" definition-exists="true" ipc-concordant="F01D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with stationary working-fluid guiding means and bladed or like rotor, </text><CPC-specific-text><text>e.g. multi-bladed impulse steam turbines</text></CPC-specific-text><reference><text><class-ref scheme="cpc">F01D1/24</class-ref> takes precedence; without stationary working-fluid guiding means <class-ref scheme="cpc">F01D1/18</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D1/023" definition-exists="false" ipc-concordant="F01D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-05-01" status="published"><classification-symbol>F01D1/023</classification-symbol><class-title date-revised="2017-05-01"><title-part><CPC-specific-text><text>the working-fluid being divided into several separate flows </text><reference><text><class-ref scheme="cpc">F01D3/02</class-ref> takes precedence</text></reference><text>; several separate fluid flows being united in a single flow; the machine or engine having provision for two or more different possible fluid flow paths</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D1/026" definition-exists="false" ipc-concordant="F01D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F01D1/026</classification-symbol><class-title date-revised="2016-08-01"><title-part><CPC-specific-text><text>Impact turbines with buckets, i.e. impulse turbines, e.g. Pelton turbines </text><reference><text><class-ref scheme="cpc">F01D1/16</class-ref>, <class-ref scheme="cpc">F01D1/34</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D1/04" definition-exists="false" ipc-concordant="F01D1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>traversed by the working-fluid substantially axially</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D1/06" definition-exists="false" ipc-concordant="F01D1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>traversed by the working-fluid substantially radially</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D1/08" definition-exists="false" ipc-concordant="F01D1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having inward flow</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D1/10" definition-exists="false" ipc-concordant="F01D1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having two or more stages subjected to working-fluid flow without essential intermediate pressure change, i.e. with velocity stages </text><reference><text><class-ref scheme="cpc">F01D1/12</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D1/12" definition-exists="false" ipc-concordant="F01D1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with repeated action on same blade ring</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D1/14" definition-exists="false" ipc-concordant="F01D1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>traversed by the working-fluid substantially radially</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D1/16" definition-exists="false" ipc-concordant="F01D1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by having both reaction stages and impulse stages</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D1/18" definition-exists="false" ipc-concordant="F01D1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>without stationary working-fluid guiding means; </text><reference><text><class-ref scheme="cpc">F01D1/24</class-ref>, <class-ref scheme="cpc">F01D1/32</class-ref>, <class-ref scheme="cpc">F01D1/34</class-ref> take precedence; </text><CPC-specific-text><text>with pressure-velocity transformation exclusively in rotor <class-ref scheme="cpc">F01D1/32</class-ref></text></CPC-specific-text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D1/20" definition-exists="false" ipc-concordant="F01D1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>traversed by the working-fluid substantially axially</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D1/22" definition-exists="false" ipc-concordant="F01D1/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>traversed by the working-fluid substantially radially</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D1/24" definition-exists="false" ipc-concordant="F01D1/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D1/26" definition-exists="false" ipc-concordant="F01D1/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>traversed by the working-fluid substantially axially</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D1/28" definition-exists="false" ipc-concordant="F01D1/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>traversed by the working-fluid substantially radially</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D1/30" definition-exists="false" ipc-concordant="F01D1/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by having a single rotor operable in either direction of rotation, e.g. by reversing of blades </text><reference><text>combinations of machines or engines <class-ref scheme="cpc">F01D13/00</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D1/32" definition-exists="true" ipc-concordant="F01D1/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with pressure velocity transformation exclusively in rotor, e.g. the rotor rotating under the influence of jets issuing from the rotor, </text><CPC-specific-text><text>e.g. Heron turbines </text><reference><text>the working fluid being a combustion products <class-ref scheme="cpc">F02C3/165</class-ref>; jet propulsion plants <u>per se</u> <class-ref scheme="cpc">F02K</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D1/34" definition-exists="false" ipc-concordant="F01D1/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01D1/34</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>characterised by non-bladed rotor, e.g. with drilled holes </text><reference><text><class-ref scheme="cpc">F01D1/32</class-ref> takes precedence; sirens <class-ref scheme="cpc">G10K7/00</class-ref> </text><CPC-specific-text><text>; impact turbines with buckets <class-ref scheme="cpc">F01D1/026</class-ref>; hand-held tools with a non-bladed rotor <class-ref scheme="cpc">F01D15/067</class-ref></text></CPC-specific-text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D1/36" definition-exists="true" ipc-concordant="F01D1/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using fluid friction</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D1/38" definition-exists="true" ipc-concordant="F01D1/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D1/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the screw type</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01D3/00" definition-exists="false" ipc-concordant="F01D3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Machines or engines with axial-thrust balancing effected by working-fluid</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D3/02" definition-exists="true" ipc-concordant="F01D3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by having one fluid flow in one axial direction and another fluid flow in the opposite direction</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D3/025" definition-exists="false" ipc-concordant="F01D3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D3/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a centrally disposed radial stage</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D3/04" definition-exists="true" ipc-concordant="F01D3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>axial thrust being compensated by thrust-balancing dummy piston or the like</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01D5/00" definition-exists="true" ipc-concordant="F01D5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01D5/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Blades</text></title-part><title-part><text>Blade-carrying members </text><reference><text>nozzle boxes <class-ref scheme="cpc">F01D9/02</class-ref></text></reference></title-part><title-part><text>Heating, heat-insulating, cooling or antivibration means on the blades or the members </text><CPC-specific-text><reference><text>special arrangements in rotors dealing with breaking off of part thereof <class-ref scheme="cpc">F01D21/045</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D5/005" definition-exists="true" ipc-concordant="F01D5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Repairing methods or devices</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D5/02" definition-exists="false" ipc-concordant="F01D5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01D5/02</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Blade-carrying members, e.g. rotors </text><reference><text>rotors of non-bladed type <class-ref scheme="cpc">F01D1/34</class-ref>; stators <class-ref scheme="cpc">F01D9/00</class-ref> </text><CPC-specific-text><text>; selecting particular materials <class-ref scheme="cpc">F01D5/28</class-ref></text></CPC-specific-text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/021" definition-exists="true" ipc-concordant="F01D5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for flow machines or engines with only one axial stage </text><reference><text>for more than one stage <class-ref scheme="cpc">F01D5/06</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/022" definition-exists="true" ipc-concordant="F01D5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with concentric rows of axial blades</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/023" definition-exists="true" ipc-concordant="F01D5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of the screw type</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/025" definition-exists="true" ipc-concordant="F01D5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fixing blade carrying members on shafts </text><reference><text>attachment of a member on a shaft in general <class-ref scheme="cpc">F16D1/06</class-ref>; for non-positive displacement pumps <class-ref scheme="cpc">F04D29/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/026" definition-exists="true" ipc-concordant="F01D5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Shaft to shaft connections</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/027" definition-exists="false" ipc-concordant="F01D5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements for balancing </text><reference><text>for balancing rotating bodies in general <class-ref scheme="cpc">F16F15/32</class-ref>; for compensating unbalance <class-ref scheme="cpc">G01M1/36</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/028" definition-exists="true" ipc-concordant="F01D5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the rotor disc being formed of sheet laminae </text><reference><text>rotor blade aggregates of unitary construction <class-ref scheme="cpc">F01D5/34</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/03" definition-exists="true" ipc-concordant="F01D5/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Annular blade-carrying members having blades on the inner periphery of the annulus and extending inwardly radially, i.e. inverted rotors</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/04" definition-exists="true" ipc-concordant="F01D5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for radial-flow machines or engines</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/041" definition-exists="true" ipc-concordant="F01D5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of the Ljungström type</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/043" definition-exists="false" ipc-concordant="F01D5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F01D5/043</classification-symbol><class-title date-revised="2016-08-01"><title-part><CPC-specific-text><text>of the axial inlet- radial outlet, or <u>vice versa</u>, type</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/045" definition-exists="true" ipc-concordant="F01D5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F01D5/045</classification-symbol><class-title date-revised="2016-08-01"><title-part><CPC-specific-text><text>the wheel comprising two adjacent bladed wheel portions, e.g. with interengaging blades for damping vibrations</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/046" definition-exists="false" ipc-concordant="F01D5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heating, heat insulation or cooling means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/048" definition-exists="false" ipc-concordant="F01D5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Form or construction</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/06" definition-exists="false" ipc-concordant="F01D5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotors for more than one axial stage, e.g. of drum or multiple disc type</text></title-part><title-part><text>Details thereof, e.g. shafts, shaft connections </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F01D5/022</class-ref>, <class-ref scheme="cpc">F01D5/023</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/063" definition-exists="false" ipc-concordant="F01D5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welded rotors </text><reference><text>welding <u>per se</u> <class-ref scheme="cpc">B23K</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/066" definition-exists="false" ipc-concordant="F01D5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Connecting means for joining rotor-discs or rotor-elements together, e.g. by a central bolt, by clamps</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/08" definition-exists="false" ipc-concordant="F01D5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heating, heat-insulating or cooling means </text><CPC-specific-text><reference><text>specially adapted for radial flow machines or engines <class-ref scheme="cpc">F01D5/04</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/081" definition-exists="false" ipc-concordant="F01D5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/081</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling fluid being directed on the side of the rotor disc or at the roots of the blades </text><reference><text><class-ref scheme="cpc">F01D5/087</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/082" definition-exists="false" ipc-concordant="F01D5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>on the side of the rotor disc</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/084" definition-exists="false" ipc-concordant="F01D5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the fluid circulating at the periphery of a multistage rotor, e.g. of drum type</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/085" definition-exists="false" ipc-concordant="F01D5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>cooling fluid circulating inside the rotor</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/087" definition-exists="false" ipc-concordant="F01D5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in the radial passages of the rotor disc</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/088" definition-exists="false" ipc-concordant="F01D5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in a closed cavity</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/10" definition-exists="false" ipc-concordant="F01D5/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Anti- vibration means </text><CPC-specific-text><reference><text>specially adapted for radial flow machines or engines <class-ref scheme="cpc">F01D5/04</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D5/12" definition-exists="false" ipc-concordant="F01D5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Blades </text><reference><CPC-specific-text><text>specially adapted for radial flow machines or engines <class-ref scheme="cpc">F01D5/04</class-ref></text></CPC-specific-text><text>; blade roots <class-ref scheme="cpc">F01D5/30</class-ref>; rotors with blades adjustable in operation <class-ref scheme="cpc">F01D7/00</class-ref>; stator blades <class-ref scheme="cpc">F01D9/02</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/14" definition-exists="false" ipc-concordant="F01D5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Form or construction </text><reference><text>selecting particular materials, measures against erosion or corrosion <class-ref scheme="cpc">F01D5/28</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/141" definition-exists="false" ipc-concordant="F01D5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F01D5/141</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>Shape, i.e. outer, aerodynamic form </text><reference><text><class-ref scheme="cpc">F01D5/148</class-ref> - <class-ref scheme="cpc">F01D5/20</class-ref> take precedence; blade construction <class-ref scheme="cpc">F01D5/147</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/142" definition-exists="false" ipc-concordant="F01D5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/142</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of the blades of successive rotor or stator blade-rows</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01D5/143" definition-exists="false" ipc-concordant="F01D5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/145" definition-exists="false" ipc-concordant="F01D5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means for influencing boundary layers or secondary circulations </text><reference><text>for compressors <class-ref scheme="cpc">F04D29/68</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/146" definition-exists="false" ipc-concordant="F01D5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of blades with tandem configuration, split blades or slotted blades</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/147" definition-exists="false" ipc-concordant="F01D5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/147</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Construction, i.e. structural features, e.g. of weight-saving hollow blades </text><reference><text><class-ref scheme="cpc">F01D5/148</class-ref>, <class-ref scheme="cpc">F01D5/16</class-ref> and <class-ref scheme="cpc">F01D5/20</class-ref> take precedence; blade shape <class-ref scheme="cpc">F01D5/141</class-ref>; blades with cooling or heating channels or cavities <class-ref scheme="cpc">F01D5/18</class-ref>; heating, heat-insulating or cooling means on blades <class-ref scheme="cpc">F01D5/18</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/148" definition-exists="false" ipc-concordant="F01D5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/148</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Blades with variable camber, e.g. by ejection of fluid</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/16" definition-exists="true" ipc-concordant="F01D5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for counteracting blade vibration</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/18" definition-exists="false" ipc-concordant="F01D5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hollow blades, </text><CPC-specific-text><text>i.e. blades with cooling or heating channels or cavities </text><reference><text>structure of hollow blades in general <class-ref scheme="cpc">F01D5/147</class-ref></text></reference></CPC-specific-text></title-part><title-part><text>Heating, heat-insulating or cooling means on blades</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/181" definition-exists="false" ipc-concordant="F01D5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/181</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Blades having a closed internal cavity containing a cooling medium, e.g. sodium</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/182" definition-exists="false" ipc-concordant="F01D5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/182</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Transpiration cooling</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01D5/183" definition-exists="false" ipc-concordant="F01D5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/183</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Blade walls being porous</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01D5/184" definition-exists="false" ipc-concordant="F01D5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/184</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Blade walls being made of perforated sheet laminae</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/185" definition-exists="false" ipc-concordant="F01D5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Liquid cooling </text><reference><text><class-ref scheme="cpc">F01D5/181</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/186" definition-exists="true" ipc-concordant="F01D5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/186</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Film cooling </text><reference><text><class-ref scheme="cpc">F01D5/187</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/187" definition-exists="true" ipc-concordant="F01D5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/187</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Convection cooling</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01D5/188" definition-exists="true" ipc-concordant="F01D5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/188</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with an insert in the blade cavity to guide the cooling fluid, e.g. forming a separation wall</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="F01D5/189" definition-exists="true" ipc-concordant="F01D5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/189</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the insert having a tubular cross-section, e.g. airfoil shape</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/20" definition-exists="true" ipc-concordant="F01D5/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Specially-shaped blade tips to seal space between tips and stator </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F01D5/225</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/22" definition-exists="true" ipc-concordant="F01D5/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Blade-to-blade connections, </text><CPC-specific-text><text>e.g. for damping vibrations</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/225" definition-exists="false" ipc-concordant="F01D5/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/225</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by shrouding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/24" definition-exists="true" ipc-concordant="F01D5/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using wire or the like</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/26" definition-exists="true" ipc-concordant="F01D5/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Antivibration means not restricted to blade form or construction or to blade-to-blade connections </text><CPC-specific-text><text>or to the use of particular materials</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/28" definition-exists="true" ipc-concordant="F01D5/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selecting particular materials; </text><CPC-specific-text><text>Particular measures relating thereto;</text></CPC-specific-text><text> Measures against erosion or corrosion</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/282" definition-exists="true" ipc-concordant="F01D5/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/282</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Selecting composite materials, e.g. blades with reinforcing filaments</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/284" definition-exists="false" ipc-concordant="F01D5/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/284</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Selection of ceramic materials</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/286" definition-exists="false" ipc-concordant="F01D5/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/286</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Particular treatment of blades, e.g. to increase durability or resistance against corrosion or erosion </text><reference><text><class-ref scheme="cpc">F01D5/288</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/288" definition-exists="true" ipc-concordant="F01D5/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/288</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Protective coatings for blades</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D5/30" definition-exists="false" ipc-concordant="F01D5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01D5/30</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Fixing blades to rotors</text></title-part><title-part><text>Blade roots </text><CPC-specific-text><text>; Blade spacers</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/3007" definition-exists="true" ipc-concordant="F01D5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/3007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of axial insertion type</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/3015" definition-exists="true" ipc-concordant="F01D5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/3015</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with side plates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/3023" definition-exists="false" ipc-concordant="F01D5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/3023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of radial insertion type, e.g. in individual recesses</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/303" definition-exists="false" ipc-concordant="F01D5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/303</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in a circumferential slot</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D5/3038" definition-exists="false" ipc-concordant="F01D5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/3038</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the slot having inwardly directed abutment faces on both sides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/3046" definition-exists="false" ipc-concordant="F01D5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/3046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the rotor having ribs around the circumference</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/3053" definition-exists="false" ipc-concordant="F01D5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/3053</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of pins</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/3061" definition-exists="false" ipc-concordant="F01D5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/3061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by welding, brazing</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/3069" definition-exists="false" ipc-concordant="F01D5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/3069</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>between two discs or rings</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/3076" definition-exists="false" ipc-concordant="F01D5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/3076</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sheet metal discs</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/3084" definition-exists="false" ipc-concordant="F01D5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/3084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the blades being made of ceramics</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/3092" definition-exists="false" ipc-concordant="F01D5/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D5/3092</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Protective layers between blade root and rotor disc surfaces, e.g. anti-friction layers </text><reference><text><class-ref scheme="cpc">F01D5/288</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D5/32" definition-exists="false" ipc-concordant="F01D5/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>F01D5/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Locking, e.g. by final locking blades or keys</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/323" definition-exists="false" ipc-concordant="F01D5/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-05-01" status="published"><classification-symbol>F01D5/323</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Locking of axial insertion type blades by means of a key or the like parallel to the axis of the rotor</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D5/326" definition-exists="false" ipc-concordant="F01D5/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-05-01" status="published"><classification-symbol>F01D5/326</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Locking of axial insertion type blades by other means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D5/34" definition-exists="false" ipc-concordant="F01D5/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01D5/34</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Rotor-blade aggregates of unitary construction </text><CPC-specific-text><text>, e.g. formed of sheet laminae; </text><reference><text>discs formed of sheet laminae <class-ref scheme="cpc">F01D5/028</class-ref>; ceramic materials <class-ref scheme="cpc">F01D5/284</class-ref>, composite materials <class-ref scheme="cpc">F01D5/282</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01D7/00" definition-exists="true" ipc-concordant="F01D7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotors with blades adjustable in operation</text></title-part><title-part><text>Control thereof </text><reference><text>for reversing <class-ref scheme="cpc">F01D1/30</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D7/02" definition-exists="false" ipc-concordant="F01D7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D7/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having adjustment responsive to speed</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01D9/00" definition-exists="true" ipc-concordant="F01D9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Stators </text><reference><text>non-fluid guiding aspects of casings, regulating, controlling, or safety aspects, <u>see</u> the relevant groups</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D9/02" definition-exists="false" ipc-concordant="F01D9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F01D9/02</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>Nozzles</text></title-part><title-part><text>Nozzle boxes</text></title-part><title-part><text>Stator blades</text></title-part><title-part><text>Guide conduits </text><CPC-specific-text><text>, e.g. individual nozzles </text><reference><text>nozzle boxes <class-ref scheme="cpc">F01D9/047</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D9/023" definition-exists="false" ipc-concordant="F01D9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D9/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Transition ducts between combustor cans and first stage of the turbine in gas-turbine engines; their cooling or sealings</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D9/026" definition-exists="false" ipc-concordant="F01D9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D9/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Scrolls for radial machines or engines</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D9/04" definition-exists="false" ipc-concordant="F01D9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D9/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>forming ring or sector</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D9/041" definition-exists="false" ipc-concordant="F01D9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D9/041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using blades </text><reference><text><class-ref scheme="cpc">F01D5/148</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D9/042" definition-exists="false" ipc-concordant="F01D9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D9/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>fixing blades to stators </text><reference><text>fixing stator-rings in the casing or to each other <class-ref scheme="cpc">F01D25/246</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D9/044" definition-exists="false" ipc-concordant="F01D9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D9/044</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>permanently, e.g. by welding, brazing, casting or the like</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D9/045" definition-exists="false" ipc-concordant="F01D9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D9/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for radial flow machines or engines</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D9/047" definition-exists="true" ipc-concordant="F01D9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D9/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Nozzle boxes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D9/048" definition-exists="true" ipc-concordant="F01D9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D9/048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for radial admission</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D9/06" definition-exists="true" ipc-concordant="F01D9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D9/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluid supply conduits to nozzles or the like</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D9/065" definition-exists="true" ipc-concordant="F01D9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F01D9/065</classification-symbol><class-title date-revised="2016-08-01"><title-part><CPC-specific-text><text>Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids </text><reference><text>see also <class-ref scheme="cpc">F01D25/16</class-ref>, <class-ref scheme="cpc">F01D25/24</class-ref> and <class-ref scheme="cpc">F01D25/26</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01D11/00" definition-exists="true" ipc-concordant="F01D11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01D11/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Preventing or minimising internal leakage of working-fluid, e.g. between stages </text><reference><text>sealings in general <class-ref scheme="cpc">F16J</class-ref> </text><CPC-specific-text><text>; sealing arrangements for transition ducts of combustor cans <class-ref scheme="cpc">F01D9/023</class-ref></text></CPC-specific-text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D11/001" definition-exists="true" ipc-concordant="F01D11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for sealing space between stator blade and rotor</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D11/003" definition-exists="true" ipc-concordant="F01D11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by packing rings; Mechanical seals</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D11/005" definition-exists="false" ipc-concordant="F01D11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sealing means between non relatively rotating elements</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D11/006" definition-exists="false" ipc-concordant="F01D11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sealing the gap between rotor blades or blades and rotor</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D11/008" definition-exists="false" ipc-concordant="F01D11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by spacer elements between the blades, e.g. independent interblade platforms</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D11/02" definition-exists="false" ipc-concordant="F01D11/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by non-contact sealings, e.g. of labyrinth type </text><reference><text>for sealing space between rotor blade tips and stator <class-ref scheme="cpc">F01D11/08</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D11/025" definition-exists="false" ipc-concordant="F01D11/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Seal clearance control; Floating assembly; Adaptation means to differential thermal dilatations</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D11/04" definition-exists="false" ipc-concordant="F01D11/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using sealing fluid, e.g. steam</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D11/06" definition-exists="false" ipc-concordant="F01D11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control thereof</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D11/08" definition-exists="false" ipc-concordant="F01D11/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for sealing space between rotor blade tips and stator </text><reference><text>specially-shaped blade tips therefor <class-ref scheme="cpc">F01D5/20</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D11/10" definition-exists="false" ipc-concordant="F01D11/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using sealing fluid, e.g. steam</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D11/12" definition-exists="false" ipc-concordant="F01D11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using a rubstrip, e.g. erodible. deformable or resiliently-biased part</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D11/122" definition-exists="false" ipc-concordant="F01D11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with erodable or abradable material </text><reference><text>blades having cutting or grinding tips <class-ref scheme="cpc">F01D5/20</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D11/125" definition-exists="false" ipc-concordant="F01D11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a reinforcing structure</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D11/127" definition-exists="false" ipc-concordant="F01D11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a deformable or crushable structure, e.g. honeycomb</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D11/14" definition-exists="false" ipc-concordant="F01D11/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-01-01" status="published"><classification-symbol>F01D11/14</classification-symbol><class-title date-revised="2017-01-01"><title-part><text>Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing </text><reference><text>rotors with blades adjustable in operation <class-ref scheme="cpc">F01D7/00</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D11/16" definition-exists="false" ipc-concordant="F01D11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by self-adjusting means </text><reference><text><class-ref scheme="cpc">F01D11/12</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D11/18" definition-exists="false" ipc-concordant="F01D11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using stator or rotor components with predetermined thermal response, e.g. selective insulation, thermal inertia, differential expansion</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D11/20" definition-exists="true" ipc-concordant="F01D11/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Actively adjusting tip-clearance</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D11/22" definition-exists="false" ipc-concordant="F01D11/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by mechanically actuating the stator or rotor components, e.g. moving shroud sections relative to the rotor</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D11/24" definition-exists="true" ipc-concordant="F01D11/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D11/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by selectively cooling-heating stator or rotor components</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01D13/00" definition-exists="true" ipc-concordant="F01D13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D13/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combinations of two or more machines or engines </text><reference><text><class-ref scheme="cpc">F01D15/00</class-ref> takes precedence; regulating or controlling, <u>see</u> the relevant groups; combinations of two or more pumps <class-ref scheme="cpc">F04</class-ref>; fluid gearing <class-ref scheme="cpc">F16H</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D13/003" definition-exists="true" ipc-concordant="F01D13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D13/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with at least two independent shafts, i.e. cross-compound</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D13/006" definition-exists="true" ipc-concordant="F01D13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D13/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>one being a reverse turbine</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D13/02" definition-exists="true" ipc-concordant="F01D13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D13/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Working-fluid interconnection of machines or engines</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01D15/00" definition-exists="true" ipc-concordant="F01D15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D15/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adaptations of machines or engines for special use</text></title-part><title-part><text>Combinations of engines with devices driven thereby </text><reference><text>regulating or controlling <u>see</u> the relevant groups; aspects predominantly concerning driven devices, <u>see</u> the relevant classes for the devices</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D15/005" definition-exists="false" ipc-concordant="F01D15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D15/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Adaptations for refrigeration plants</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D15/02" definition-exists="false" ipc-concordant="F01D15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D15/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adaptations for driving vehicles, e.g. locomotives </text><reference><text>arrangement in vehicles, see the relevant vehicle classes</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D15/04" definition-exists="false" ipc-concordant="F01D15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D15/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the vehicles being waterborne vessels</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D15/045" definition-exists="false" ipc-concordant="F01D15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D15/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Control thereof</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D15/06" definition-exists="false" ipc-concordant="F01D15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D15/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adaptations for driving, or combinations with, hand-held tools or the like </text><CPC-specific-text><text>control thereof</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D15/062" definition-exists="false" ipc-concordant="F01D15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D15/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Controlling means specially adapted therefor</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D15/065" definition-exists="false" ipc-concordant="F01D15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D15/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with pressure-velocity transformation exclusively in rotor</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D15/067" definition-exists="false" ipc-concordant="F01D15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D15/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by non-bladed rotor</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D15/08" definition-exists="false" ipc-concordant="F01D15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D15/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adaptations for driving, or combinations with, pumps</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D15/10" definition-exists="true" ipc-concordant="F01D15/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D15/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adaptations for driving, or combinations with, electric generators</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D15/12" definition-exists="false" ipc-concordant="F01D15/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D15/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combinations with mechanical gearing </text><reference><text>driven by multiple engines <class-ref scheme="cpc">F01D13/00</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01D17/00" definition-exists="true" ipc-concordant="F01D17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01D17/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Regulating or controlling by varying flow </text><reference><text>for reversing <class-ref scheme="cpc">F01D1/30</class-ref>; by varying rotor-blade position <class-ref scheme="cpc">F01D7/00</class-ref>; specially for starting <class-ref scheme="cpc">F01D19/00</class-ref>; shutting-down <class-ref scheme="cpc">F01D21/00</class-ref>; regulating or controlling in general <class-ref scheme="cpc">G05</class-ref> </text><CPC-specific-text><text>; specially adapted for hand-held tools or the like <class-ref scheme="cpc">F01D15/06</class-ref></text></CPC-specific-text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D17/02" definition-exists="false" ipc-concordant="F01D17/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of sensing elements </text><reference><text>sensing elements <u>per se</u>: <u>see</u> the relevant subclasses</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D17/04" definition-exists="false" ipc-concordant="F01D17/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>responsive to load</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D17/06" definition-exists="true" ipc-concordant="F01D17/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>responsive to speed</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D17/08" definition-exists="true" ipc-concordant="F01D17/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>responsive to condition of working-fluid, e.g. pressure</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D17/085" definition-exists="false" ipc-concordant="F01D17/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>to temperature</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D17/10" definition-exists="false" ipc-concordant="F01D17/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01D17/10</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Final actuators </text><reference><text>valves in general <class-ref scheme="cpc">F16K</class-ref> </text><CPC-specific-text><text>; blades with variable camber <class-ref scheme="cpc">F01D5/148</class-ref></text></CPC-specific-text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D17/105" definition-exists="false" ipc-concordant="F01D17/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by passing part of the fluid</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D17/12" definition-exists="false" ipc-concordant="F01D17/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>arranged in stator parts</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D17/14" definition-exists="false" ipc-concordant="F01D17/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>varying effective cross-sectional area of nozzles or guide conduits</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D17/141" definition-exists="false" ipc-concordant="F01D17/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/141</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of shiftable members or valves obturating part of the flow path</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01D17/143" definition-exists="false" ipc-concordant="F01D17/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the shiftable member being a wall, or part thereof of a radial diffuser</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01D17/145" definition-exists="false" ipc-concordant="F01D17/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of valves, e.g. for steam turbines </text><reference><text>valves in general <class-ref scheme="cpc">F16K</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D17/146" definition-exists="false" ipc-concordant="F01D17/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by throttling the volute inlet of radial machines or engines</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D17/148" definition-exists="false" ipc-concordant="F01D17/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/148</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of rotatable members, e.g. butterfly valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01D17/16" definition-exists="false" ipc-concordant="F01D17/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of nozzle vanes</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01D17/162" definition-exists="false" ipc-concordant="F01D17/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F01D17/162</classification-symbol><class-title date-revised="2016-08-01"><title-part><CPC-specific-text><text>for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line </text><reference><text><class-ref scheme="cpc">F01D17/167</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01D17/165" definition-exists="true" ipc-concordant="F01D17/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F01D17/165</classification-symbol><class-title date-revised="2016-08-01"><title-part><CPC-specific-text><text>for radial flow, i.e. the vanes turning around axes which are essentially parallel to the rotor centre line </text><reference><text><class-ref scheme="cpc">F01D17/167</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F01D17/167" definition-exists="true" ipc-concordant="F01D17/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/167</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of vanes moving in translation</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D17/18" definition-exists="false" ipc-concordant="F01D17/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F01D17/18</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>varying effective number of nozzles or guide conduits </text><CPC-specific-text><text>, e.g. sequentially operable valves for steam turbines</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D17/20" definition-exists="false" ipc-concordant="F01D17/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted </text><reference><text>sensing elements alone <class-ref scheme="cpc">F01D17/02</class-ref>; final actuators alone <class-ref scheme="cpc">F01D17/10</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D17/205" definition-exists="false" ipc-concordant="F01D17/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Centrifugal governers directly linked to valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D17/22" definition-exists="false" ipc-concordant="F01D17/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the operation or power assistance being predominantly non-mechanical</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D17/24" definition-exists="false" ipc-concordant="F01D17/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>electrical</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D17/26" definition-exists="false" ipc-concordant="F01D17/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D17/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>fluid, e.g. hydraulic</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01D19/00" definition-exists="true" ipc-concordant="F01D19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D19/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Starting of machines or engines</text></title-part><title-part><text>Regulating, controlling, or safety means in connection therewith </text><reference><text>warming-up before starting <class-ref scheme="cpc">F01D25/10</class-ref>; turning or inching gear <class-ref scheme="cpc">F01D25/34</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D19/02" definition-exists="false" ipc-concordant="F01D19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D19/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>dependent on temperature of component parts, e.g. of turbine-casing</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01D21/00" definition-exists="true" ipc-concordant="F01D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shutting-down of machines or engines, e.g. in emergency</text></title-part><title-part><text>Regulating, controlling, or safety means not otherwise provided for</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D21/003" definition-exists="true" ipc-concordant="F01D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements for testing or measuring </text><reference><text>for measuring vibrations <class-ref scheme="cpc">G01H</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D21/006" definition-exists="false" ipc-concordant="F01D21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements of brakes </text><reference><text>brakes <u>per se</u> <class-ref scheme="cpc">F16D</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D21/02" definition-exists="false" ipc-concordant="F01D21/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shutting-down responsive to overspeed</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D21/04" definition-exists="false" ipc-concordant="F01D21/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>responsive to undesired position of rotor relative to stator </text><CPC-specific-text><text>or to breaking-off of a part of the rotor</text></CPC-specific-text><text>, e.g. indicating such position</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D21/045" definition-exists="false" ipc-concordant="F01D21/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>special arrangements in stators or in rotors dealing with breaking-off of part of rotor</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D21/06" definition-exists="false" ipc-concordant="F01D21/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shutting-down</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D21/08" definition-exists="false" ipc-concordant="F01D21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Restoring position</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D21/10" definition-exists="false" ipc-concordant="F01D21/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>responsive to unwanted deposits on blades, in working-fluid conduits or the like</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D21/12" definition-exists="false" ipc-concordant="F01D21/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>responsive to temperature</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D21/14" definition-exists="false" ipc-concordant="F01D21/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>responsive to other specific conditions</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D21/16" definition-exists="true" ipc-concordant="F01D21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Trip gear</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D21/18" definition-exists="false" ipc-concordant="F01D21/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>involving hydraulic means</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D21/20" definition-exists="false" ipc-concordant="F01D21/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D21/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Checking operation of shut-down devices</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01D23/00" definition-exists="true" ipc-concordant="F01D23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D23/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-positive-displacement machines or engines with movement other than pure rotation, e.g. of endless-chain type</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01D25/00" definition-exists="false" ipc-concordant="F01D25/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Component parts, details, or accessories, not provided for in, or of interest apart from, other groups</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D25/002" definition-exists="true" ipc-concordant="F01D25/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cleaning of turbomachines</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D25/005" definition-exists="false" ipc-concordant="F01D25/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Selecting particular materials</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D25/007" definition-exists="false" ipc-concordant="F01D25/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preventing corrosion</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D25/02" definition-exists="false" ipc-concordant="F01D25/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>De-icing means for engines having icing phenomena</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D25/04" definition-exists="false" ipc-concordant="F01D25/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Antivibration arrangements</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/06" definition-exists="false" ipc-concordant="F01D25/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for preventing blade vibration </text><reference><text>means on blade-carrying members or blades <class-ref scheme="cpc">F01D5/00</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D25/08" definition-exists="false" ipc-concordant="F01D25/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling </text><reference><text>of machines or engines in general <class-ref scheme="cpc">F01P</class-ref></text></reference></title-part><title-part><text>Heating</text></title-part><title-part><text>Heat-insulation </text><reference><text>of blade-carrying members, of blades <class-ref scheme="cpc">F01D5/00</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/10" definition-exists="false" ipc-concordant="F01D25/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heating, e.g. warming-up before starting</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/12" definition-exists="false" ipc-concordant="F01D25/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D25/125" definition-exists="false" ipc-concordant="F01D25/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of bearings</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/14" definition-exists="false" ipc-concordant="F01D25/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Casings modified therefor </text><reference><text>double casings <class-ref scheme="cpc">F01D25/26</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D25/145" definition-exists="false" ipc-concordant="F01D25/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Thermally insulated casings</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D25/16" definition-exists="true" ipc-concordant="F01D25/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of bearings</text></title-part><title-part><text>Supporting or mounting bearings in casings </text><reference><text>bearings <u>per se</u> <class-ref scheme="cpc">F16C</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/162" definition-exists="true" ipc-concordant="F01D25/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/162</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bearing supports</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D25/164" definition-exists="true" ipc-concordant="F01D25/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/164</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flexible supports; Vibration damping means associated with the bearing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/166" definition-exists="true" ipc-concordant="F01D25/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/166</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sliding contact bearing </text><reference><text>gas bearings <class-ref scheme="cpc">F01D25/22</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D25/168" definition-exists="true" ipc-concordant="F01D25/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/168</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for axial load mainly</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D25/18" definition-exists="true" ipc-concordant="F01D25/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lubricating arrangements </text><reference><text>of machines or engines in general <class-ref scheme="cpc">F01M</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/183" definition-exists="false" ipc-concordant="F01D25/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/183</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sealing means</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D25/186" definition-exists="false" ipc-concordant="F01D25/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/186</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for sliding contact bearing</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/20" definition-exists="false" ipc-concordant="F01D25/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using lubrication pumps</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/22" definition-exists="false" ipc-concordant="F01D25/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using working-fluid or other gaseous fluid as lubricant</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D25/24" definition-exists="true" ipc-concordant="F01D25/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01D25/24</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Casings </text><reference><text>modified for heating or cooling <class-ref scheme="cpc">F01D25/14</class-ref></text></reference></title-part><title-part><text>Casing parts, e.g. diaphragms, casing fastenings </text><reference><text>casings for rotary machines or engines in general <class-ref scheme="cpc">F16M</class-ref> </text><CPC-specific-text><text>; special arrangements in stators dealing with breaking-off of part of rotor <class-ref scheme="cpc">F01D21/045</class-ref></text></CPC-specific-text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/243" definition-exists="false" ipc-concordant="F01D25/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/243</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flange connections; Bolting arrangements </text><reference><text><class-ref scheme="cpc">F01D25/265</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/246" definition-exists="false" ipc-concordant="F01D25/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fastening of diaphragms or stator-rings</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/26" definition-exists="false" ipc-concordant="F01D25/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Double casings</text></title-part><title-part><text>Measures against temperature strain in casings</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01D25/265" definition-exists="false" ipc-concordant="F01D25/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/265</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Vertically split casings; Clamping arrangements therefor</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D25/28" definition-exists="false" ipc-concordant="F01D25/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Supporting or mounting arrangements, e.g. for turbine casing</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/285" definition-exists="true" ipc-concordant="F01D25/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/285</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D25/30" definition-exists="true" ipc-concordant="F01D25/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Exhaust heads, chambers, or the like</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/305" definition-exists="true" ipc-concordant="F01D25/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/305</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fluid, e.g. liquid injection</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D25/32" definition-exists="false" ipc-concordant="F01D25/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Collecting of condensation water</text></title-part><title-part><text>Drainage </text><CPC-specific-text><text>Removing solid particles</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01D25/34" definition-exists="true" ipc-concordant="F01D25/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Turning or inching gear</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01D25/36" definition-exists="false" ipc-concordant="F01D25/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01D25/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using electric motors</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></class-scheme> |