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144 lines
81 KiB
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144 lines
81 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="F02C" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>F02C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>GAS-TURBINE PLANTS</text></title-part><title-part><text>AIR INTAKES FOR JET-PROPULSION PLANTS</text></title-part><title-part><text>CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS </text><reference><text>construction of turbines <class-ref scheme="cpc">F01D</class-ref>; jet-propulsion plants <class-ref scheme="cpc">F02K</class-ref>; construction of compressors or fans <class-ref scheme="cpc">F04</class-ref>; gas-turbine combustion chambers <class-ref scheme="cpc">F23R</class-ref>; using gas turbines in compression refrigeration plants <class-ref scheme="cpc">F25B11/00</class-ref>; using gas-turbine plants in vehicles, see the relevant vehicle classes</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>combustion product or hot gas turbine plants; </note-paragraph><note-paragraph>internal combustion turbines or turbine plants; </note-paragraph><note-paragraph>turbine plants in which the working fluid is an unheated, pressurised gas.</note-paragraph></subnote></note-paragraph><note-paragraph>This subclass <u>does not cover</u>: <subnote type="bullet"><note-paragraph>steam turbine plants, which are covered by subclass <class-ref scheme="cpc">F01K</class-ref>; </note-paragraph><note-paragraph>special vapour plants, which are covered by subclass <class-ref scheme="cpc">F01K</class-ref>. </note-paragraph><note-paragraph><CPC-specific-note> combined cycle plants, which are covered by subclass <class-ref scheme="cpc">F01K23/00</class-ref></CPC-specific-note></note-paragraph></subnote></note-paragraph><note-paragraph>In this subclass, the following expression is used with the meaning indicated: <subnote type="bullet"><note-paragraph>"gas-turbine plants" covers all the subject matter of Note (1) above and covers also features of jet-propulsion plants common to gas-turbine plants.</note-paragraph></subnote></note-paragraph><note-paragraph>Attention is drawn to the Notes preceding class <class-ref scheme="cpc">F01</class-ref>.</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="F02C1/00" date-revised="2013-01-01" status="published"><classification-symbol>F02C1/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F02C1/00" definition-exists="true" ipc-concordant="F02C1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F02C1/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid </text><reference><text>by the use of combustion products <class-ref scheme="cpc">F02C3/00</class-ref>, <class-ref scheme="cpc">F02C5/00</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="F02C1/002" definition-exists="false" ipc-concordant="F02C1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C1/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using an auxiliary fluid</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="F02C1/005" definition-exists="false" ipc-concordant="F02C1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C1/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>being recirculated</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="F02C1/007" definition-exists="false" ipc-concordant="F02C1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C1/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>combination of cycles</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="F02C1/02" definition-exists="false" ipc-concordant="F02C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the working fluid being an unheated pressurised gas</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="F02C1/04" definition-exists="false" ipc-concordant="F02C1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the working fluid being heated indirectly </text><CPC-specific-text><reference><text>in a fluidised-bed combustor <class-ref scheme="cpc">F02C3/205</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="F02C1/05" definition-exists="false" ipc-concordant="F02C1/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C1/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the type or source of heat, e.g. using nuclear or solar energy</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C1/06" definition-exists="false" ipc-concordant="F02C1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using reheated exhaust gas </text><reference><text><class-ref scheme="cpc">F02C1/08</class-ref> takes precedence</text></reference></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="F02C1/08" definition-exists="false" ipc-concordant="F02C1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Semi-closed cycles</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="F02C1/10" definition-exists="false" ipc-concordant="F02C1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Closed cycles</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C1/105" definition-exists="false" ipc-concordant="F02C1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C1/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>construction; details</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="F02C3/00" definition-exists="true" ipc-concordant="F02C3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Gas-turbine plants characterised by the use of combustion products as the working fluid </text><reference><text>generated by intermittent combustion <class-ref scheme="cpc">F02C5/00</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="F02C3/02" definition-exists="false" ipc-concordant="F02C3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using exhaust-gas pressure in a pressure exchanger to compress combustion-air </text><reference><text>pressure exchangers <u>per se</u> <class-ref scheme="cpc">F04F13/00</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F02C3/04" definition-exists="false" ipc-concordant="F02C3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a turbine driving a compressor </text><reference><text>power transmission arrangements <class-ref scheme="cpc">F02C7/36</class-ref>; control of working fluid flow <class-ref scheme="cpc">F02C9/16</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="F02C3/045" definition-exists="false" ipc-concordant="F02C3/045" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having compressor and turbine passages in a single rotor-module </text><reference><text><class-ref scheme="cpc">F02C3/073</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="F02C3/05" definition-exists="false" ipc-concordant="F02C3/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the compressor and the turbine being of the radial flow type</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="F02C3/055" definition-exists="false" ipc-concordant="F02C3/055" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/055</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the compressor being of the positive-displacement 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="F02C3/06" definition-exists="false" ipc-concordant="F02C3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the compressor comprising only axial stages </text><reference><text><class-ref scheme="cpc">F02C3/10</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="F02C3/062" definition-exists="false" ipc-concordant="F02C3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the turbine being of the radial-flow 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="F02C3/064" definition-exists="false" ipc-concordant="F02C3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the compressor having concentric stages</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="F02C3/067" definition-exists="false" ipc-concordant="F02C3/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having counter-rotating rotors </text><reference><text><class-ref scheme="cpc">F02C3/073</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="10" additional-only="false" sort-key="F02C3/073" definition-exists="false" ipc-concordant="F02C3/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/073</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the compressor and turbine stages being concentric</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="F02C3/08" definition-exists="false" ipc-concordant="F02C3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the compressor comprising at least one radial stage </text><reference><text><class-ref scheme="cpc">F02C3/10</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="F02C3/085" definition-exists="false" ipc-concordant="F02C3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the turbine being of the radial-flow type (radial-radial) </text><reference><text><class-ref scheme="cpc">F02C3/05</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C3/09" definition-exists="false" ipc-concordant="F02C3/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the centripetal type</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="F02C3/10" definition-exists="false" ipc-concordant="F02C3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with another turbine driving an output shaft but not driving the compressor</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C3/103" definition-exists="false" ipc-concordant="F02C3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the compressor being of the centrifugal type</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C3/107" definition-exists="false" ipc-concordant="F02C3/107" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with two or more rotors connected by power transmission</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C3/113" definition-exists="false" ipc-concordant="F02C3/113" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/113</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with variable power transmission between rotors</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="F02C3/13" definition-exists="false" ipc-concordant="F02C3/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/13</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having variable working fluid interconnections between turbines or compressors or stages of different rotors </text><CPC-specific-text><reference><text>controlling flow ratio between different flows of multi-flow jet-propulsion plant, e.g. ducted fan <class-ref scheme="cpc">F02K3/075</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="F02C3/14" definition-exists="false" ipc-concordant="F02C3/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the arrangement of the combustion chamber in the plant </text><reference><text>combustion chambers <u>per se</u> <class-ref scheme="cpc">F23R</class-ref>; <class-ref scheme="cpc">F02C3/205</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="F02C3/145" definition-exists="false" ipc-concordant="F02C3/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the combustion chamber being in the reverse flow-type</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C3/16" definition-exists="false" ipc-concordant="F02C3/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the combustion chambers being formed at least partly in the turbine rotor </text><CPC-specific-text><text>or in an other rotating part of the plant</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="F02C3/165" definition-exists="false" ipc-concordant="F02C3/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the combustion chamber contributes to the driving force by creating reactive thrust</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="F02C3/20" definition-exists="false" ipc-concordant="F02C3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using a special fuel, oxidant, or dilution fluid to generate the combustion products</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C3/205" definition-exists="false" ipc-concordant="F02C3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in a fluidised-bed combustor </text><reference><text>in combination with a steam cycle <u>see</u> <class-ref scheme="cpc">F01K23/061</class-ref>; fluidised-bed apparatus in general <class-ref scheme="cpc">B01J8/18</class-ref>; fluidised-bed combustors in general <class-ref scheme="cpc">F23C10/00</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="F02C3/22" definition-exists="false" ipc-concordant="F02C3/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the fuel or oxidant being gaseous at standard temperature and pressure </text><reference><text><class-ref scheme="cpc">F02C3/28</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="F02C3/24" definition-exists="false" ipc-concordant="F02C3/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the fuel or oxidant being liquid at standard temperature and pressure</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="F02C3/26" definition-exists="false" ipc-concordant="F02C3/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the fuel or oxidant being solid or pulverulent, e.g. in slurry or suspension</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C3/28" definition-exists="false" ipc-concordant="F02C3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using a separate gas producer for gasifying the fuel before combustion</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="F02C3/30" definition-exists="false" ipc-concordant="F02C3/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adding water, steam or other fluids </text><CPC-specific-text><text>for influencing combustion, e.g. to obtain cleaner exhaust gases </text><reference><text><class-ref scheme="cpc">F02C7/141</class-ref>, <class-ref scheme="cpc">F02C7/30</class-ref>, <class-ref scheme="cpc">F01D21/00</class-ref>, <class-ref scheme="cpc">F01K21/04</class-ref>, <class-ref scheme="cpc">F23D11/10</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C3/305" definition-exists="false" ipc-concordant="F02C3/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/305</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Increasing the power, speed, torque or efficiency of a gas turbine or the thrust of a turbojet engine by injecting or adding water, steam or other fluids </text><reference><text><class-ref scheme="cpc">F01K21/04</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F02C3/32" definition-exists="false" ipc-concordant="F02C3/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Inducing air flow by fluid jet, e.g. ejector action</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="F02C3/34" definition-exists="false" ipc-concordant="F02C3/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with recycling of part of the working fluid, i.e. semi-closed cycles with combustion products in the closed part of the cycle</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="F02C3/36" definition-exists="false" ipc-concordant="F02C3/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Open cycles</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C3/365" definition-exists="false" ipc-concordant="F02C3/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C3/365</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>a part of the compressed air being burned, the other part being heated indirectly </text><reference><text>in a fluidised-bed combustor <class-ref scheme="cpc">F02C3/205</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F02C5/00" definition-exists="true" ipc-concordant="F02C5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Gas-turbine plants characterised by the working fluid being generated by intermittent combustion</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F02C5/02" definition-exists="false" ipc-concordant="F02C5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the arrangement of the combustion chamber in the chamber in the plant </text><reference><text>combustion chambers <u>per se</u> <class-ref scheme="cpc">F23R</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="F02C5/04" definition-exists="false" ipc-concordant="F02C5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the combustion chambers being formed at least partly in the turbine rotor</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="F02C5/06" definition-exists="false" ipc-concordant="F02C5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the working fluid being generated in an internal-combustion gas generated of the positive-displacement type having essentially no mechanical power output </text><reference><text>internal-combustion engines with prolonged expansion using exhaust gas turbines <class-ref scheme="cpc">F02B</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="F02C5/08" definition-exists="false" ipc-concordant="F02C5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C5/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the gas generator being of the free-piston 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="F02C5/10" definition-exists="false" ipc-concordant="F02C5/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C5/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the working fluid forming a resonating or oscillating gas column, i.e. the combustion chambers having no positively actuated valves, e.g. using Helmholtz effect</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C5/11" definition-exists="false" ipc-concordant="F02C5/11" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C5/11</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using valveless combustion chambers</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="F02C5/12" definition-exists="false" ipc-concordant="F02C5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C5/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the combustion chambers having inlet or outlet valves, e.g. Holzwarth gas-turbine plants</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="F02C6/00" definition-exists="false" ipc-concordant="F02C6/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C6/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plural gas-turbine plants</text></title-part><title-part><text>Combinations of gas-turbine plants with other apparatus </text><reference><text>aspects predominantly concerning such apparatus, <u>see</u> the relevant classes for the apparatus</text></reference></title-part><title-part><text>Adaptations of gas- turbine plants for special use</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F02C6/003" definition-exists="false" ipc-concordant="F02C6/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C6/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Gas-turbine plants with heaters between turbine stages</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="F02C6/006" definition-exists="false" ipc-concordant="F02C6/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-05-01" status="published"><classification-symbol>F02C6/006</classification-symbol><class-title date-revised="2017-05-01"><title-part><CPC-specific-text><text>Open cycle gas-turbine in which the working fluid is expanded to a pressure below the atmospheric pressure and then compressed to atmospheric pressure</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="F02C6/02" definition-exists="false" ipc-concordant="F02C6/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C6/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plural gas-turbine plants having a common power output</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="F02C6/04" definition-exists="true" ipc-concordant="F02C6/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F02C6/04</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output </text><reference><text><class-ref scheme="cpc">F02C6/18</class-ref> takes precedence </text><CPC-specific-text><text>; for a fluidised-bed combustor <class-ref scheme="cpc">F02C3/205</class-ref></text></CPC-specific-text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C6/06" definition-exists="true" ipc-concordant="F02C6/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C6/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>providing compressed gas </text><reference><text><class-ref scheme="cpc">F02C6/10</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="F02C6/08" definition-exists="true" ipc-concordant="F02C6/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C6/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the gas being bled from the gas-turbine compressor</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="F02C6/10" definition-exists="true" ipc-concordant="F02C6/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C6/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C6/12" definition-exists="true" ipc-concordant="F02C6/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C6/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure</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="F02C6/14" definition-exists="false" ipc-concordant="F02C6/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C6/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Gas-turbine plants having means for storing energy, e.g. for meeting peak loads</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C6/16" definition-exists="false" ipc-concordant="F02C6/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C6/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for storing compressed air</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="F02C6/18" definition-exists="true" ipc-concordant="F02C6/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F02C6/18</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants </text><reference><text>using waste heat as source of energy for refrigeration plants <class-ref scheme="cpc">F25B27/02</class-ref>; using the waste heat of a gasturbine for steam generation or in a steam cycle <u>see</u> <class-ref scheme="cpc">F01K23/10</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="F02C6/20" definition-exists="false" ipc-concordant="F02C6/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C6/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adaptations of gas-turbine plants for driving vehicles</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C6/203" definition-exists="false" ipc-concordant="F02C6/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C6/203</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the vehicles being waterborne vessels</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="F02C6/206" definition-exists="false" ipc-concordant="F02C6/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C6/206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the vehicles being airscrew driven</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="F02C7/00" definition-exists="true" ipc-concordant="F02C7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F02C7/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Features, components parts, details or accessories, not provided for in, or of interest apart form groups <class-ref scheme="cpc">F02C1/00</class-ref> - <class-ref scheme="cpc">F02C6/00</class-ref></text></title-part><title-part><text>Air intakes for jet-propulsion plants </text><reference><text>controlling <class-ref scheme="cpc">F02C9/00</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="F02C7/04" definition-exists="false" ipc-concordant="F02C7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Air intakes for gas-turbine plants or jet-propulsion plants</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C7/042" definition-exists="false" ipc-concordant="F02C7/042" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having variable geometry</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="F02C7/045" definition-exists="false" ipc-concordant="F02C7/045" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having provisions for noise suppression</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="F02C7/047" definition-exists="false" ipc-concordant="F02C7/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heating to prevent icing</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="F02C7/05" definition-exists="true" ipc-concordant="F02C7/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having provisions for obviating the penetration of damaging objects or particles</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C7/052" definition-exists="false" ipc-concordant="F02C7/052" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/052</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with dust-separation devices</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="F02C7/055" definition-exists="false" ipc-concordant="F02C7/055" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/055</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with intake grids, screens or guards</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="F02C7/057" definition-exists="false" ipc-concordant="F02C7/057" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/057</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control or regulation </text><reference><text>conjointly with fuel supply control <class-ref scheme="cpc">F02C9/50</class-ref>, with nozzle area control <class-ref scheme="cpc">F02K1/16</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F02C7/06" definition-exists="false" ipc-concordant="F02C7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of bearings </text><reference><text>bearings <class-ref scheme="cpc">F16C</class-ref></text></reference></title-part><title-part><text>Lubricating </text><reference><CPC-specific-text><text>of turbo machines <class-ref scheme="cpc">F01D25/18</class-ref>; of machines or</text></CPC-specific-text><text> engines in general <class-ref scheme="cpc">F01M</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="F02C7/08" definition-exists="false" ipc-concordant="F02C7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heating air supply before combustion, e.g. by exhaust gases</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C7/10" definition-exists="false" ipc-concordant="F02C7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of regenerative heat-exchangers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C7/105" definition-exists="false" ipc-concordant="F02C7/105" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of the rotary type </text><reference><text>rotary heat exchangers <u>per se</u> <class-ref scheme="cpc">F28D</class-ref></text></reference></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="F02C7/12" definition-exists="false" ipc-concordant="F02C7/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling of plants </text><reference><text>of component parts, <u>see</u> the relevant subclasses, e.g. <class-ref scheme="cpc">F01D</class-ref>; cooling of engines in general <class-ref scheme="cpc">F01P</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="F02C7/125" definition-exists="false" ipc-concordant="F02C7/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by partial arc admission of the working fluid or by intermittent admission of working and cooling fluid</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C7/14" definition-exists="false" ipc-concordant="F02C7/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F02C7/14</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>of fluids in the plant </text><CPC-specific-text><text>, e.g. lubricant or fuel </text><reference><text><class-ref scheme="cpc">F02C7/185</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C7/141" definition-exists="false" ipc-concordant="F02C7/141" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/141</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of working fluid</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F02C7/143" definition-exists="false" ipc-concordant="F02C7/143" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>before or between the compressor stages</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F02C7/1435" definition-exists="false" ipc-concordant="F02C7/143" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/1435</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by water injection</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="F02C7/16" definition-exists="false" ipc-concordant="F02C7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by cooling medium</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C7/18" definition-exists="false" ipc-concordant="F02C7/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the medium being gaseous, e.g. air </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F02C7/125</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F02C7/185" definition-exists="false" ipc-concordant="F02C7/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling means for reducing the temperature of the cooling air or gas</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="8" additional-only="false" sort-key="F02C7/20" definition-exists="false" ipc-concordant="F02C7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-05-01" status="published"><classification-symbol>F02C7/20</classification-symbol><class-title date-revised="2017-05-01"><title-part><text>Mounting or supporting of plant</text></title-part><title-part><text>Accommodating heat expansion or creep</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="F02C7/22" definition-exists="true" ipc-concordant="F02C7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fuel supply systems</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C7/222" definition-exists="false" ipc-concordant="F02C7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/222</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fuel flow conduits, e.g. manifolds</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="F02C7/224" definition-exists="true" ipc-concordant="F02C7/224" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/224</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heating fuel before feeding to the burner</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="F02C7/228" definition-exists="false" ipc-concordant="F02C7/228" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/228</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dividing fuel between various burners</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="F02C7/232" definition-exists="false" ipc-concordant="F02C7/232" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/232</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fuel valves </text><CPC-specific-text><reference><text>control of fuel supply by means of fuel metering valves <class-ref scheme="cpc">F02C9/263</class-ref></text></reference></CPC-specific-text></title-part><title-part><text>Draining valves or systems </text><reference><text>valves in general <class-ref scheme="cpc">F16K</class-ref></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="F02C7/236" definition-exists="false" ipc-concordant="F02C7/236" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/236</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fuel delivery systems comprising two or more pumps</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C7/2365" definition-exists="false" ipc-concordant="F02C7/236" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/2365</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising an air supply system for the atomisation of fuel</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="F02C7/24" definition-exists="false" ipc-concordant="F02C7/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heat or noise insulation </text><reference><text>air intakes having provisions for noise suppression <class-ref scheme="cpc">F02C7/045</class-ref>; turbine exhaust heads, chambers, or the like <class-ref scheme="cpc">F01D25/30</class-ref>; silencing nozzles of jet-propulsion plants <class-ref scheme="cpc">F02K1/00</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C7/25" definition-exists="false" ipc-concordant="F02C7/25" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/25</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fire protection or prevention </text><reference><text>in general <class-ref scheme="cpc">A62</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F02C7/26" definition-exists="false" ipc-concordant="F02C7/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Starting</text></title-part><title-part><text>Ignition</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C7/262" definition-exists="false" ipc-concordant="F02C7/262" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/262</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Restarting after flame-out</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="F02C7/264" definition-exists="false" ipc-concordant="F02C7/264" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/264</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Ignition</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C7/266" definition-exists="false" ipc-concordant="F02C7/266" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/266</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electric </text><reference><text>sparking plugs <class-ref scheme="cpc">H01T</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C7/268" definition-exists="true" ipc-concordant="F02C7/268" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F02C7/268</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Starting drives for the rotor </text><CPC-specific-text><text>, acting directly on the rotor of the gas turbine to be started</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="F02C7/27" definition-exists="true" ipc-concordant="F02C7/27" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/27</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluid drives </text><reference><text>turbine starters <class-ref scheme="cpc">F02C7/277</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F02C7/272" definition-exists="true" ipc-concordant="F02C7/272" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/272</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>generated by cartridges</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="F02C7/275" definition-exists="true" ipc-concordant="F02C7/275" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/275</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mechanical drives</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F02C7/277" definition-exists="true" ipc-concordant="F02C7/277" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/277</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the starter being a </text><CPC-specific-text><text>separate</text></CPC-specific-text><text> turbine</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="8" additional-only="false" sort-key="F02C7/28" definition-exists="true" ipc-concordant="F02C7/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of seals</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="F02C7/30" definition-exists="true" ipc-concordant="F02C7/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preventing corrosion </text><CPC-specific-text><text>or unwanted deposits</text></CPC-specific-text><text> in gas-swept spaces</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="F02C7/32" definition-exists="true" ipc-concordant="F02C7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C7/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement, mounting, or driving, of auxiliaries</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="F02C7/36" definition-exists="false" ipc-concordant="F02C7/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F02C7/36</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user </text><reference><CPC-specific-text><text><class-ref scheme="cpc">F02C3/107</class-ref> - <class-ref scheme="cpc">F02C3/13</class-ref> and</text></CPC-specific-text><text> <class-ref scheme="cpc">F02C7/32</class-ref> take precedence; couplings for transmitting rotation <class-ref scheme="cpc">F16D</class-ref>; gearing in general <class-ref scheme="cpc">F16H</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F02C9/00" definition-exists="true" ipc-concordant="F02C9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Controlling gas-turbine plants</text></title-part><title-part><text>Controlling fuel supply in air- breathing jet-propulsion plants </text><reference><text>controlling air intakes <class-ref scheme="cpc">F02C7/057</class-ref>; controlling turbines <class-ref scheme="cpc">F01D</class-ref>; controlling compressors <class-ref scheme="cpc">F04D27/00</class-ref>; controlling in general <class-ref scheme="cpc">G05</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="F02C9/16" definition-exists="false" ipc-concordant="F02C9/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of working fluid flow </text><reference><text><class-ref scheme="cpc">F02C9/48</class-ref> takes precedence; control of air-intake flow <class-ref scheme="cpc">F02C7/057</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="F02C9/18" definition-exists="false" ipc-concordant="F02C9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by bleeding, bypassing or acting on variable working fluid interconnections between turbines or compressors or their stages </text><CPC-specific-text><reference><text><class-ref scheme="cpc">F02C3/113</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C9/20" definition-exists="false" ipc-concordant="F02C9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by throttling</text></title-part><title-part><text>by adjusting vanes</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C9/22" definition-exists="false" ipc-concordant="F02C9/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by adjusting turbine vanes</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="F02C9/24" definition-exists="false" ipc-concordant="F02C9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of the pressure level in closed cycles</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="F02C9/26" definition-exists="false" ipc-concordant="F02C9/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of fuel supply </text><reference><text><class-ref scheme="cpc">F02C9/48</class-ref> takes precedence; fuel valves <class-ref scheme="cpc">F02C7/232</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="F02C9/263" definition-exists="false" ipc-concordant="F02C9/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/263</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of fuel metering valves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F02C9/266" definition-exists="false" ipc-concordant="F02C9/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/266</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for gas turbines with intermittent fuel injection</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="F02C9/28" definition-exists="false" ipc-concordant="F02C9/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F02C9/28</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed </text><reference><text><class-ref scheme="cpc">F02C9/30</class-ref> - <class-ref scheme="cpc">F02C9/38</class-ref>, <class-ref scheme="cpc">F02C9/44</class-ref> take 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="F02C9/285" definition-exists="false" ipc-concordant="F02C9/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/285</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mechanical command devices linked to the throttle lever</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="F02C9/30" definition-exists="false" ipc-concordant="F02C9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by variable fuel pump output</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="F02C9/32" definition-exists="false" ipc-concordant="F02C9/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by throttling of fuel </text><reference><text><class-ref scheme="cpc">F02C9/38</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="F02C9/34" definition-exists="false" ipc-concordant="F02C9/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Joint control of separate flows to main and auxiliary burners</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="F02C9/36" definition-exists="false" ipc-concordant="F02C9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by returning of fuel to sump </text><reference><text><class-ref scheme="cpc">F02C9/38</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="F02C9/38" definition-exists="false" ipc-concordant="F02C9/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by throttling and returning of fuel to sump</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="F02C9/40" definition-exists="false" ipc-concordant="F02C9/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>specially adapted to the use of a special fuel or a plurality of fuels</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="F02C9/42" definition-exists="false" ipc-concordant="F02C9/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>specially adapted for the control of two or more plants simultaneously</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="F02C9/44" definition-exists="false" ipc-concordant="F02C9/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>responsive to the speed of aircraft, e.g. Mach number control, optimisation of fuel consumption</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="F02C9/46" definition-exists="false" ipc-concordant="F02C9/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Emergency fuel control</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="F02C9/48" definition-exists="false" ipc-concordant="F02C9/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of fuel supply conjointly with another control of the plant </text><reference><text>with nozzle section control <class-ref scheme="cpc">F02K1/17</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="F02C9/50" definition-exists="false" ipc-concordant="F02C9/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with control of working fluid flow</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C9/52" definition-exists="false" ipc-concordant="F02C9/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by bleeding or by-passing the working fluid</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="F02C9/54" definition-exists="false" ipc-concordant="F02C9/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by throttling the working fluid, by adjusting vanes</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="F02C9/56" definition-exists="false" ipc-concordant="F02C9/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with power transmission control</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F02C9/58" definition-exists="false" ipc-concordant="F02C9/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F02C9/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with control of a variable-pitch propeller</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></classification-item></class-scheme> |