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191 lines
105 KiB
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191 lines
105 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="F01C" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>F01C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES </text><reference><text>internal-combustion aspects <class-ref scheme="cpc">F02B53/00</class-ref>, <class-ref scheme="cpc">F02B55/00</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>rotary-piston or oscillating-piston engines for elastic fluids, e.g. steam; </note-paragraph><note-paragraph>rotary-piston or oscillating-piston engines for liquids and elastic fluids: </note-paragraph><note-paragraph>rotary-piston or oscillating-piston machines for elastic fluids; </note-paragraph><note-paragraph>rotary-piston or oscillating-piston machines for liquids and elastic fluids.</note-paragraph></subnote></note-paragraph><note-paragraph>In this subclass, the following expression is used with the meaning indicated: <subnote type="bullet"><note-paragraph>"rotary-piston machine" includes the German expressions "Drehkolbenmaschinen", "Kreiskolbenmaschinen" and "Umlaufkolbenmaschinen".</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 "rotary-piston machine", "oscillating-piston machine", "rotary piston", "co-operating members", "movement of co-operating members", "teeth or tooth-equivalents" and "internal-axis".</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="F01C1/00" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F01C1/00" definition-exists="true" ipc-concordant="F01C1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F01C1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotary-piston machines or engines </text><reference><text>with axes of co-operating members non parallel <class-ref scheme="cpc">F01C3/00</class-ref>; with the working-chamber walls at least partly resiliently deformable <class-ref scheme="cpc">F01C5/00</class-ref>; with fluid ring or the like <class-ref scheme="cpc">F01C7/00</class-ref>; rotary-piston machines or engines in which the working fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons <class-ref scheme="cpc">F01B13/00</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>Group <class-ref scheme="cpc">F01C1/30</class-ref> takes precedence over groups <class-ref scheme="cpc">F01C1/02</class-ref> - <class-ref scheme="cpc">F01C1/28</class-ref>.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01C1/02" definition-exists="false" ipc-concordant="F01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01C1/0207" definition-exists="false" ipc-concordant="F01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/0207</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>both members having co-operating elements in spiral form</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="F01C1/0215" definition-exists="false" ipc-concordant="F01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/0215</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>where only one member is moving</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="F01C1/0223" definition-exists="false" ipc-concordant="F01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/0223</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with symmetrical double wraps</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="F01C1/023" definition-exists="false" ipc-concordant="F01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>where both members are moving</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="F01C1/0238" definition-exists="false" ipc-concordant="F01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/0238</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with symmetrical double wraps</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="F01C1/0246" definition-exists="false" ipc-concordant="F01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/0246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details concerning the involute wraps or their base, e.g. geometry</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="F01C1/0253" definition-exists="false" ipc-concordant="F01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/0253</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details concerning the base</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="F01C1/0261" definition-exists="false" ipc-concordant="F01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/0261</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details of the ports, e.g. location, number, geometry</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="F01C1/0269" definition-exists="false" ipc-concordant="F01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/0269</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details concerning the involute wraps</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="F01C1/0276" definition-exists="false" ipc-concordant="F01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/0276</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Different wall heights</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="F01C1/0284" definition-exists="false" ipc-concordant="F01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/0284</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details of the wrap tips</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="F01C1/0292" definition-exists="false" ipc-concordant="F01C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/0292</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ports or channels located in the wrap</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="9" additional-only="false" sort-key="F01C1/04" definition-exists="false" ipc-concordant="F01C1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of internal-axis type</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01C1/045" definition-exists="false" ipc-concordant="F01C1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having a C-shaped piston</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="F01C1/06" definition-exists="false" ipc-concordant="F01C1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>F01C1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of other than internal-axis type </text><reference><text><class-ref scheme="cpc">F01C1/063</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="F01C1/063" definition-exists="false" ipc-concordant="F01C1/063" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>F01C1/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with coaxially-mounted members having continuously-changing circumferential spacing between them</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01C1/067" definition-exists="false" ipc-concordant="F01C1/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>F01C1/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having cam-and-follower type drive</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="F01C1/07" definition-exists="false" ipc-concordant="F01C1/07" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>F01C1/07</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having crankshaft-and-connecting-rod type drive</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="F01C1/073" definition-exists="false" ipc-concordant="F01C1/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>F01C1/073</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having pawl-and-ratchet type drive</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="F01C1/077" definition-exists="false" ipc-concordant="F01C1/077" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2014-02-04" status="published"><classification-symbol>F01C1/077</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having toothed-gearing type drive</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="F01C1/08" definition-exists="true" ipc-concordant="F01C1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01C1/082" definition-exists="false" ipc-concordant="F01C1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details specially related to intermeshing engagement type machines or engines</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="F01C1/084" definition-exists="false" ipc-concordant="F01C1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Toothed wheels</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="F01C1/086" definition-exists="true" ipc-concordant="F01C1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carter</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="F01C1/088" definition-exists="false" ipc-concordant="F01C1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement</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="F01C1/10" definition-exists="false" ipc-concordant="F01C1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01C1/101" definition-exists="false" ipc-concordant="F01C1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/101</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Moineau-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="F01C1/102" definition-exists="false" ipc-concordant="F01C1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a crescent shaped filler element located between the intermeshing elements</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="F01C1/103" definition-exists="false" ipc-concordant="F01C1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the two members rotating simultaneously around their respective axes</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="F01C1/104" definition-exists="false" ipc-concordant="F01C1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/104</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>one member having simultaneously a rotational movement about its own axis and an orbital movement</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="F01C1/105" definition-exists="false" ipc-concordant="F01C1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and having an articulated driving shaft</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="F01C1/107" definition-exists="false" ipc-concordant="F01C1/107" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with helical teeth</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="F01C1/113" definition-exists="false" ipc-concordant="F01C1/113" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/113</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the inner member carrying rollers intermeshing with the outer member</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="F01C1/12" definition-exists="false" ipc-concordant="F01C1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of other than internal-axis type</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01C1/123" definition-exists="false" ipc-concordant="F01C1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with tooth-like elements, extending generally radially from the rotor body cooperating with recesses in the other rotor, e.g. one tooth</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="F01C1/126" definition-exists="false" ipc-concordant="F01C1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with elements extending radially from the rotor body not necessarily cooperating with corresponding recesses in the other rotor, e.g. lobes, Roots 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="F01C1/14" definition-exists="false" ipc-concordant="F01C1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with toothed rotary pistons</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01C1/16" definition-exists="false" ipc-concordant="F01C1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with helical teeth, e.g. chevron-shaped, screw type </text><CPC-specific-text><reference><text>for non-parallel axes of movement <class-ref scheme="cpc">F01C3/00</class-ref></text></reference></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="F01C1/165" definition-exists="false" ipc-concordant="F01C1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having more than two rotary pistons with parallel axes</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="F01C1/18" definition-exists="false" ipc-concordant="F01C1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with similar tooth forms </text><reference><text><class-ref scheme="cpc">F01C1/16</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="11" additional-only="false" sort-key="F01C1/20" definition-exists="false" ipc-concordant="F01C1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with dissimilar tooth forms </text><reference><text><class-ref scheme="cpc">F01C1/16</class-ref> takes precedence</text></reference></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="8" additional-only="false" sort-key="F01C1/22" definition-exists="false" ipc-concordant="F01C1/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01C1/22</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member</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="F01C1/24" definition-exists="false" ipc-concordant="F01C1/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of counter-engagement type, i.e. the movement of co-operating members at the points of engagement being in opposite directions</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01C1/26" definition-exists="false" ipc-concordant="F01C1/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of internal-axis type</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="F01C1/28" definition-exists="false" ipc-concordant="F01C1/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of other than internal-axis type</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="F01C1/30" definition-exists="false" ipc-concordant="F01C1/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the characteristics covered by two or more groups <class-ref scheme="cpc">F01C1/02</class-ref>, <class-ref scheme="cpc">F01C1/08</class-ref>, <class-ref scheme="cpc">F01C1/22</class-ref>, <class-ref scheme="cpc">F01C1/24</class-ref> or having the characteristics covered by one of these groups together with some other type of movement between co-operating members</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01C1/32" definition-exists="false" ipc-concordant="F01C1/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having both the movement defined in group <class-ref scheme="cpc">F01C1/02</class-ref> and relative reciprocation between the co-operating members</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01C1/321" definition-exists="false" ipc-concordant="F01C1/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/321</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with vanes hinged to the inner member and reciprocating with respect to the inner member</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="F01C1/322" definition-exists="false" ipc-concordant="F01C1/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/322</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with vanes hinged to the outer member and reciprocating with respect to the outer member</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="F01C1/324" definition-exists="false" ipc-concordant="F01C1/324" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/324</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with vanes hinged to the inner member and reciprocating with respect to the outer member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01C1/328" definition-exists="false" ipc-concordant="F01C1/328" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/328</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>and hinged to the outer member</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="F01C1/332" definition-exists="false" ipc-concordant="F01C1/332" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/332</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with vanes hinged to the outer member and reciprocating with respect to the inner member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01C1/336" definition-exists="false" ipc-concordant="F01C1/336" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/336</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>and hinged to the inner member</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="F01C1/34" definition-exists="false" ipc-concordant="F01C1/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the movement defined in group <class-ref scheme="cpc">F01C1/08</class-ref> or <class-ref scheme="cpc">F01C1/22</class-ref> and relative reciprocation between the co-operating members</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01C1/344" definition-exists="false" ipc-concordant="F01C1/344" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/344</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with vanes reciprocating with respect to the inner member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01C1/3441" definition-exists="false" ipc-concordant="F01C1/344" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/3441</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation</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="F01C1/3442" definition-exists="false" ipc-concordant="F01C1/344" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/3442</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the surfaces of the inner and outer member, forming the working space, being surfaces of revolution</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="F01C1/3443" definition-exists="false" ipc-concordant="F01C1/344" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/3443</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a separation element located between the inlet and outlet opening</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="F01C1/3445" definition-exists="false" ipc-concordant="F01C1/344" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/3445</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the vanes having the form of rollers, slippers 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="11" additional-only="false" sort-key="F01C1/3446" definition-exists="false" ipc-concordant="F01C1/344" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/3446</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the inner and outer member being in contact along more than one line or surface</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="F01C1/3447" definition-exists="false" ipc-concordant="F01C1/344" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/3447</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the vanes having the form of rollers, slippers 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="11" additional-only="false" sort-key="F01C1/3448" definition-exists="false" ipc-concordant="F01C1/344" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/3448</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with axially movable vanes</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="F01C1/348" definition-exists="false" ipc-concordant="F01C1/348" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/348</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the vanes positively engaging, with circumferential play, an outer rotatable member</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="F01C1/352" definition-exists="false" ipc-concordant="F01C1/352" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/352</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the vanes being pivoted on the axis of the outer member</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="F01C1/356" definition-exists="false" ipc-concordant="F01C1/356" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/356</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with vanes reciprocating with respect to the outer member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F01C1/3562" definition-exists="false" ipc-concordant="F01C1/356" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/3562</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation</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="F01C1/3564" definition-exists="false" ipc-concordant="F01C1/356" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/3564</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the surfaces of the inner and outer member, forming the working space, being surfaces of revolution</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="F01C1/3566" definition-exists="false" ipc-concordant="F01C1/356" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/3566</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the inner and outer member being in contact along more than one line or surface</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="F01C1/3568" definition-exists="false" ipc-concordant="F01C1/356" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/3568</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with axially movable vanes</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="F01C1/36" definition-exists="false" ipc-concordant="F01C1/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having both the movements defined in sub-groups <class-ref scheme="cpc">F01C1/22</class-ref> and <class-ref scheme="cpc">F01C1/24</class-ref></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="F01C1/38" definition-exists="false" ipc-concordant="F01C1/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the movement defined in group <class-ref scheme="cpc">F01C1/02</class-ref> and having a hinged member </text><reference><text><class-ref scheme="cpc">F01C1/32</class-ref> takes precedence</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="F01C1/39" definition-exists="false" ipc-concordant="F01C1/39" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/39</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with vanes hinged to the inner as well as to the outer member</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="F01C1/40" definition-exists="false" ipc-concordant="F01C1/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the movement defined in group <class-ref scheme="cpc">F01C1/08</class-ref> or <class-ref scheme="cpc">F01C1/22</class-ref> and having a hinged member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01C1/44" definition-exists="false" ipc-concordant="F01C1/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with vanes hinged to the inner member</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="F01C1/46" definition-exists="false" ipc-concordant="F01C1/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C1/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with vanes hinged to the outer member</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="F01C3/00" definition-exists="true" ipc-concordant="F01C3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotary-piston machines or engines with non-parallel axes of movement of co-operating members </text><reference><text>with the working-chamber walls being at least partly resiliently deformable <class-ref scheme="cpc">F01C5/00</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="F01C3/02" definition-exists="false" ipc-concordant="F01C3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the axes being arranged at an angle of 90 degrees</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01C3/025" definition-exists="false" ipc-concordant="F01C3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C3/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing</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="F01C3/04" definition-exists="false" ipc-concordant="F01C3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with axially sliding vanes</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="F01C3/06" definition-exists="false" ipc-concordant="F01C3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C3/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the axes being arranged otherwise than at an angle of 90 degrees</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01C3/08" definition-exists="false" ipc-concordant="F01C3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C3/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01C3/085" definition-exists="false" ipc-concordant="F01C3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C3/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the axes of cooperating members being on the same plane</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="7" additional-only="false" sort-key="F01C5/00" definition-exists="true" ipc-concordant="F01C5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotary-piston machines or engines with the working-chamber walls at least partly resiliently deformable</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01C5/02" definition-exists="false" ipc-concordant="F01C5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the resiliently-deformable wall being part of the inner member, e.g. of a rotary piston</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="F01C5/04" definition-exists="false" ipc-concordant="F01C5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the resiliently-deformable wall being part of the outer member, e.g. of a housing</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="F01C5/06" definition-exists="false" ipc-concordant="F01C5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the resiliently-deformable wall being a separate member</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01C5/08" definition-exists="false" ipc-concordant="F01C5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C5/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of tubular form, e.g. hose</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="F01C7/00" definition-exists="true" ipc-concordant="F01C7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotary-piston machines or engines with fluid ring or the like</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="F01C9/00" definition-exists="true" ipc-concordant="F01C9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Oscillating-piston machines or engines</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01C9/002" definition-exists="false" ipc-concordant="F01C9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C9/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the piston oscillating around a fixed axis</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="F01C9/005" definition-exists="true" ipc-concordant="F01C9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C9/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the piston oscillating in the space, e.g. around a fixed point </text><reference><text>rotary piston machines or engines with non-parallel axes of rotation between co-operating members <class-ref scheme="cpc">F01C3/00</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="8" additional-only="false" sort-key="F01C9/007" definition-exists="false" ipc-concordant="F01C9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C9/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the points of the moving element describing approximately an alternating movement in axial direction with respect to the other element</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="7" additional-only="false" sort-key="F01C11/00" definition-exists="true" ipc-concordant="F01C11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C11/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type </text><reference><text><class-ref scheme="cpc">F01C13/00</class-ref> takes precedence; 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="F01C11/002" definition-exists="false" ipc-concordant="F01C11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C11/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of similar working principle</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="F01C11/004" definition-exists="false" ipc-concordant="F01C11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C11/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and of complementary function, e.g. internal combustion engine with supercharger</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="F01C11/006" definition-exists="false" ipc-concordant="F01C11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C11/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of dissimilar working principle</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="F01C11/008" definition-exists="false" ipc-concordant="F01C11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C11/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and of complementary function, e.g. internal combustion engine with supercharger</text></CPC-specific-text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>Multi-stage steam engines or similar machines are not considered as having complementary function</note-paragraph></note></notes-and-warnings></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="F01C13/00" definition-exists="true" ipc-concordant="F01C13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C13/00</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>aspects predominantly concerning driven devices, <u>see</u> the relevant classes for these 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="F01C13/02" definition-exists="false" ipc-concordant="F01C13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C13/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for driving hand-held tools 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="F01C13/04" definition-exists="false" ipc-concordant="F01C13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C13/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for driving pumps or compressors</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="F01C17/00" definition-exists="true" ipc-concordant="F01C17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C17/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for drive of co-operating members, e.g. for rotary piston and casing</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01C17/02" definition-exists="false" ipc-concordant="F01C17/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C17/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of toothed-gearing type </text><reference><text><class-ref scheme="cpc">F01C1/077</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="8" additional-only="false" sort-key="F01C17/04" definition-exists="false" ipc-concordant="F01C17/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C17/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of cam-and-follower type </text><reference><text><class-ref scheme="cpc">F01C1/067</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="8" additional-only="false" sort-key="F01C17/06" definition-exists="false" ipc-concordant="F01C17/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C17/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using cranks, universal joints or similar elements </text><reference><text><class-ref scheme="cpc">F01C1/07</class-ref> takes precedence</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="F01C17/063" definition-exists="false" ipc-concordant="F01C17/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C17/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with only rolling movement</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="F01C17/066" definition-exists="false" ipc-concordant="F01C17/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C17/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with an intermediate piece sliding along perpendicular axes, e.g. Oldham coupling</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="7" additional-only="false" sort-key="F01C19/00" definition-exists="true" ipc-concordant="F01C19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C19/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sealing arrangements in rotary-piston machines or engines </text><reference><text>sealings in general <class-ref scheme="cpc">F16J</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="F01C19/005" definition-exists="false" ipc-concordant="F01C19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C19/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements </text><reference><text>vane construction <class-ref scheme="cpc">F01C21/0809</class-ref>; piston rings and ring sealings of similar construction in general <class-ref scheme="cpc">F16J9/00</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="8" additional-only="false" sort-key="F01C19/02" definition-exists="false" ipc-concordant="F01C19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01C19/02</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Radially-movable sealings for working fluids</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01C19/025" definition-exists="false" ipc-concordant="F01C19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C19/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Radial sealing elements specially adapted for intermeshing engagement type machines or engines, e.g. gear 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="F01C19/04" definition-exists="false" ipc-concordant="F01C19/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C19/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of rigid material</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="F01C19/06" definition-exists="false" ipc-concordant="F01C19/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C19/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of resilient material</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="F01C19/08" definition-exists="false" ipc-concordant="F01C19/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01C19/08</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Axially-movable sealings for working fluids</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01C19/085" definition-exists="false" ipc-concordant="F01C19/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C19/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or engines, e.g. gear machines or engines</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="F01C19/10" definition-exists="false" ipc-concordant="F01C19/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C19/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sealings for working fluids between radially and axially movable parts</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="F01C19/12" definition-exists="true" ipc-concordant="F01C19/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C19/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for other than working fluid</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01C19/125" definition-exists="false" ipc-concordant="F01C19/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C19/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Shaft sealings specially adapted for rotary or oscillating-piston machines or engines</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="7" additional-only="false" sort-key="F01C20/00" definition-exists="true" ipc-concordant="F01C20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of, monitoring of, or safety arrangements for, machines or engines</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01C20/02" definition-exists="false" ipc-concordant="F01C20/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>specially adapted for several machines or engines connected in series or in parallel</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="F01C20/04" definition-exists="false" ipc-concordant="F01C20/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>specially adapted for reversible machines or engines</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="F01C20/06" definition-exists="false" ipc-concordant="F01C20/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>specially adapted for stopping, starting, idling or no-load operation</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="F01C20/08" definition-exists="false" ipc-concordant="F01C20/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by varying the rotational speed</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="F01C20/10" definition-exists="false" ipc-concordant="F01C20/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01C20/10</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>characterised by changing the positions of the inlet or outlet openings with respect to the working chamber</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01C20/12" definition-exists="false" ipc-concordant="F01C20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using sliding valves</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01C20/125" definition-exists="false" ipc-concordant="F01C20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with sliding valves controlled by the use of fluid other than the working fluid</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="F01C20/14" definition-exists="false" ipc-concordant="F01C20/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using rotating valves</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="F01C20/16" definition-exists="false" ipc-concordant="F01C20/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using lift valves</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="F01C20/18" definition-exists="true" ipc-concordant="F01C20/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by varying the volume of the working chamber </text><reference><text>by changing the positions of inlet or outlet openings <class-ref scheme="cpc">F01C20/10</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="F01C20/185" definition-exists="false" ipc-concordant="F01C20/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by varying the useful pumping length of the cooperating members in the axial direction</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="F01C20/20" definition-exists="false" ipc-concordant="F01C20/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by changing the form of the inner or outlet contour of the working chamber</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="F01C20/22" definition-exists="true" ipc-concordant="F01C20/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by changing the eccentricity between cooperating members</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="F01C20/24" definition-exists="false" ipc-concordant="F01C20/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-02-01" status="published"><classification-symbol>F01C20/24</classification-symbol><class-title date-revised="2017-02-01"><title-part><text>characterised by using valves for controlling pressure or flow rate, e.g. discharge valves </text><reference><text><class-ref scheme="cpc">F01C20/10</class-ref> takes precedence</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="F01C20/26" definition-exists="false" ipc-concordant="F01C20/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using bypass channels</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F01C20/265" definition-exists="false" ipc-concordant="F01C20/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/265</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>being obtained by displacing a lateral sealing face</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="F01C20/28" definition-exists="false" ipc-concordant="F01C20/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C20/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Safety arrangements</text></title-part><title-part><text>Monitoring</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="F01C21/00" definition-exists="true" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F01C21/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Component parts, details or accessories not provided for in groups <class-ref scheme="cpc">F01C1/00</class-ref> - <class-ref scheme="cpc">F01C20/00</class-ref></text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F01C21/001" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Injection of a fluid in the working chamber for sealing, cooling and lubricating </text><reference><text>sealing only <class-ref scheme="cpc">F01C17/00</class-ref>; lubrication only <class-ref scheme="cpc">F01C21/04</class-ref>; cooling only <class-ref scheme="cpc">F01C21/06</class-ref>; injecting water or steam in internal combustion engines <class-ref scheme="cpc">F02B47/02</class-ref>, <class-ref scheme="cpc">F02D21/00</class-ref>, <class-ref scheme="cpc">F02M25/00</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="F01C21/002" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with control systems for the injection of the fluid</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="F01C21/003" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Systems for the equilibration of forces acting on the elements of the machine </text><reference><text>interstice adjustment other than by fluid pressure <class-ref scheme="cpc">F01C21/102</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="F01C21/005" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Internal leakage control</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="F01C21/006" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Equalization of pressure pulses </text><reference><text>silencing for compressors <class-ref scheme="cpc">F04C29/06</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="F01C21/007" definition-exists="true" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>General arrangements of parts; Frames and supporting elements</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="F01C21/008" definition-exists="true" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Driving elements, brakes, couplings, transmissions specially adapted for rotary or oscillating-piston machines or engines </text><reference><text>brakes, couplings, transmissions <u>per se</u> <class-ref scheme="cpc">F16</class-ref>, <class-ref scheme="cpc">B60</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="F01C21/02" definition-exists="false" ipc-concordant="F01C21/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of bearings </text><reference><text>bearing constructions <class-ref scheme="cpc">F16C</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="F01C21/04" definition-exists="false" ipc-concordant="F01C21/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lubrication </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="F01C21/045" definition-exists="false" ipc-concordant="F01C21/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Control systems for the circulation of the lubricant</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="F01C21/06" definition-exists="false" ipc-concordant="F01C21/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heating</text></title-part><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>Heat insulation </text><reference><text>heat insulation in general <class-ref scheme="cpc">F16L</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="F01C21/08" definition-exists="false" ipc-concordant="F01C21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F01C21/08</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Rotary pistons </text><reference><text>reciprocating pistons in general <class-ref scheme="cpc">F16J</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="F01C21/0809" definition-exists="true" ipc-concordant="F01C21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/0809</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Construction of vanes or vane holders</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="F01C21/0818" definition-exists="false" ipc-concordant="F01C21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/0818</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Vane tracking; control therefor</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="F01C21/0827" definition-exists="false" ipc-concordant="F01C21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/0827</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by mechanical means</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="F01C21/0836" definition-exists="true" ipc-concordant="F01C21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/0836</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising guiding means, e.g. cams, rollers</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="F01C21/0845" definition-exists="false" ipc-concordant="F01C21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/0845</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising elastic means, e.g. springs</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="F01C21/0854" definition-exists="false" ipc-concordant="F01C21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/0854</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by fluid means</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="F01C21/0863" definition-exists="false" ipc-concordant="F01C21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/0863</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the fluid being the working fluid</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="F01C21/0872" definition-exists="false" ipc-concordant="F01C21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/0872</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the fluid being other than the working fluid</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="F01C21/0881" definition-exists="false" ipc-concordant="F01C21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/0881</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the vanes consisting of two or more parts</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="F01C21/089" definition-exists="false" ipc-concordant="F01C21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/089</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for synchronised movement of the vanes</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="F01C21/10" definition-exists="true" ipc-concordant="F01C21/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Outer members for co-operation with rotary pistons</text></title-part><title-part><text>Casings </text><reference><text>casings for rotary engines or machines in general <class-ref scheme="cpc">F16M</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="F01C21/102" definition-exists="false" ipc-concordant="F01C21/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Adjustment of the interstices between moving and fixed parts of the machine by means other than fluid pressure</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="F01C21/104" definition-exists="false" ipc-concordant="F01C21/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/104</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Stators; Members defining the outer boundaries of the working chamber</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="F01C21/106" definition-exists="false" ipc-concordant="F01C21/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a radial surface, e.g. cam rings</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="F01C21/108" definition-exists="false" ipc-concordant="F01C21/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/108</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with an axial surface, e.g. side plates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01C21/12" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Control of working fluid admission or discharge</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01C21/125" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements for supercharging the working space</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01C21/14" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for variable fluid distribution</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F01C21/16" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Other regulation or control</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01C21/1606" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1606</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Variation of the working chamber</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01C21/1612" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1612</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by changing the eccentricity of an element with respect to another element</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01C21/1618" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1618</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by changing the positions of the inlet and outlet openings with respect to the working chambers</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F01C21/1625" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1625</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with sliding or rotating valves, adjustable in position</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F01C21/1631" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1631</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with sliding valves controlled by the use of fluid other than the working fluid</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01C21/1637" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1637</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by changing the form of the radially inner or the radially outer contour of the working chamber</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01C21/1643" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1643</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by using valves regulating pressure and flow rate, e.g. discharge valves</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01C21/165" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a by-pass channel</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F01C21/1656" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1656</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>being obtained by displacing a lateral sealing face</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F01C21/1662" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1662</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with venting means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01C21/1668" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1668</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with several machines or engines connected in series or in parallel</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01C21/1675" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1675</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with reversible machines or engines</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01C21/1681" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1681</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by varying the rotational speed</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01C21/1687" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1687</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Safety arrangements</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F01C21/1693" definition-exists="false" ipc-concordant="F01C21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C2021/1693</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Stopping or starting, idling or no-load operation</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="F01C21/18" definition-exists="false" ipc-concordant="F01C21/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F01C21/183" definition-exists="false" ipc-concordant="F01C21/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/183</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements for supercharging the working space </text><reference><text>similar arrangements for internal combustion engines <class-ref scheme="cpc">F02B33/00</class-ref>, <class-ref scheme="cpc">F02B27/00</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="F01C21/186" definition-exists="false" ipc-concordant="F01C21/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F01C21/186</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for variable fluid distribution</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></class-scheme> |