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159 lines
83 KiB
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159 lines
83 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="F23C" definition-exists="true" date-revised="2019-08-01" status="published"><classification-symbol>F23C</classification-symbol><class-title date-revised="2018-05-01"><title-part><text>METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  </text><CPC-specific-text><text>A CARRIER GAS OR</text></CPC-specific-text><text> AIR  </text><reference><text>burners <class-ref scheme="cpc">F23D</class-ref></text></reference></title-part></class-title><notes-and-warnings><note type="note"><note-paragraph> In this subclass, methods are classified in the groups that cover the apparatus used.</note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">F23C101/00</class-ref></entry><entry> covered by </entry><entry> <class-ref scheme="cpc">F23C2206/101</class-ref> </entry></row></table></note-paragraph><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="F23C1/00" date-revised="2013-01-01" status="published"><classification-symbol>F23C1/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F23C1/00" definition-exists="true" ipc-concordant="F23C1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-05-01" status="published"><classification-symbol>F23C1/00</classification-symbol><class-title date-revised="2018-05-01"><title-part><text>Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in </text><CPC-specific-text><text>a carrier gas or</text></CPC-specific-text><text> air </text><reference><text>combustion apparatus characterized by the combination of two or more combustion chambers <class-ref scheme="cpc">F23C6/00</class-ref>; pilot flame igniters <class-ref scheme="cpc">F23Q9/00</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="F23C1/02" definition-exists="false" ipc-concordant="F23C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-05-01" status="published"><classification-symbol>F23C1/02</classification-symbol><class-title date-revised="2018-05-01"><title-part><text>lump and liquid fuel</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="F23C1/04" definition-exists="false" ipc-concordant="F23C1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-05-01" status="published"><classification-symbol>F23C1/04</classification-symbol><class-title date-revised="2018-05-01"><title-part><text>lump and gaseous fuel</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="F23C1/06" definition-exists="false" ipc-concordant="F23C1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-05-01" status="published"><classification-symbol>F23C1/06</classification-symbol><class-title date-revised="2018-05-01"><title-part><text>lump and pulverulent fuel</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="F23C1/08" definition-exists="false" ipc-concordant="F23C1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-05-01" status="published"><classification-symbol>F23C1/08</classification-symbol><class-title date-revised="2018-05-01"><title-part><text>liquid and gaseous fuel</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="F23C1/10" definition-exists="false" ipc-concordant="F23C1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-05-01" status="published"><classification-symbol>F23C1/10</classification-symbol><class-title date-revised="2018-05-01"><title-part><text>liquid and pulverulent fuel</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="F23C1/12" definition-exists="false" ipc-concordant="F23C1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-05-01" status="published"><classification-symbol>F23C1/12</classification-symbol><class-title date-revised="2018-05-01"><title-part><text>gaseous and pulverulent fuel</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="F23C3/00" definition-exists="true" ipc-concordant="F23C3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion apparatus characterised by the shape of the combustion chamber</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F23C3/002" definition-exists="false" ipc-concordant="F23C3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C3/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the chamber having an elongated tubular form, e.g. for a radiant tube</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="F23C3/004" definition-exists="true" ipc-concordant="F23C3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C3/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the chamber being arranged for submerged combustion </text><reference><text><class-ref scheme="cpc">F23C3/002</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="8" additional-only="false" sort-key="F23C3/006" definition-exists="false" ipc-concordant="F23C3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C3/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the chamber being arranged for cyclonic combustion </text><reference><text>for waste <class-ref scheme="cpc">F23G5/32</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="F23C3/008" definition-exists="false" ipc-concordant="F23C3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C3/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for pulverulent 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="7" additional-only="false" sort-key="F23C5/00" definition-exists="true" ipc-concordant="F23C5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Disposition of burners with respect to the combustion chamber or to one another</text></title-part><title-part><text>Mounting of burners in combustion apparatus </text><reference><text><class-ref scheme="cpc">F23C1/00</class-ref>, <class-ref scheme="cpc">F23C15/00</class-ref> take precedence</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="F23C5/02" definition-exists="false" ipc-concordant="F23C5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Structural details of mounting</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F23C5/06" definition-exists="false" ipc-concordant="F23C5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Provision for adjustment of burner position during operation</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="F23C5/08" definition-exists="false" ipc-concordant="F23C5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C5/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Disposition of burners</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F23C5/10" definition-exists="false" ipc-concordant="F23C5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>F23C5/10</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>to obtain a flame ring</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="F23C5/12" definition-exists="false" ipc-concordant="F23C5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>F23C5/12</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>for pulverulent fuel</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="F23C5/14" definition-exists="true" ipc-concordant="F23C5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C5/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to obtain a single flame of concentrated or substantially planar form, e.g. pencil or sheet flame </text><reference><text><class-ref scheme="cpc">F23C5/32</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="F23C5/24" definition-exists="false" ipc-concordant="F23C5/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C5/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to obtain a loop flame</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="F23C5/28" definition-exists="false" ipc-concordant="F23C5/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C5/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to obtain flames in opposing directions, e.g. impacting flames</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="F23C5/32" definition-exists="false" ipc-concordant="F23C5/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F23C5/32</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>to obtain rotating flames, i.e. flames moving helically or spirally</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="F23C6/00" definition-exists="true" ipc-concordant="F23C6/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C6/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion apparatus characterised by the combination of two or more combustion chambers </text><CPC-specific-text><text>or combustion zones, e.g. for staged combustion</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F23C6/02" definition-exists="false" ipc-concordant="F23C6/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C6/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in parallel arrangement</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="F23C6/04" definition-exists="false" ipc-concordant="F23C6/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C6/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in series connection </text><reference><text>consuming smoke or fumes in separate combustion apparatus <class-ref scheme="cpc">F23G7/06</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="F23C6/042" definition-exists="false" ipc-concordant="F23C6/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C6/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fuel supply in stages </text><reference><text>for staged combustion <class-ref scheme="cpc">F23C6/047</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="F23C6/045" definition-exists="false" ipc-concordant="F23C6/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C6/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with staged combustion in a single enclosure</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="F23C6/047" definition-exists="false" ipc-concordant="F23C6/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C6/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fuel supply in stages</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="F23C7/00" definition-exists="true" ipc-concordant="F23C7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-05-01" status="published"><classification-symbol>F23C7/00</classification-symbol><class-title date-revised="2018-05-01"><title-part><text>Combustion apparatus characterised by arrangements for air supply </text><reference><text>inlets for fluidisation air <class-ref scheme="cpc">F23C10/20</class-ref>; baffles or shields with air supply passages <class-ref scheme="cpc">F23M9/04</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="F23C7/002" definition-exists="false" ipc-concordant="F23C7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C7/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the air being submitted to a rotary or spinning motion </text><reference><text>cyclonic combustion chamber <class-ref scheme="cpc">F23C3/006</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="F23C7/004" definition-exists="false" ipc-concordant="F23C7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C7/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using vanes</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="F23C7/006" definition-exists="false" ipc-concordant="F23C7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C7/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>adjustable</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="F23C7/008" definition-exists="false" ipc-concordant="F23C7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C7/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flow control devices </text><reference><text><class-ref scheme="cpc">F23C7/006</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="8" additional-only="false" sort-key="F23C7/02" definition-exists="false" ipc-concordant="F23C7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C7/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Disposition of air supply not passing through burner </text><reference><text>to obtain a cyclonic tapering flame when burning pulverulent fuel <class-ref scheme="cpc">F23C5/32</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="F23C7/04" definition-exists="false" ipc-concordant="F23C7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C7/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>to obtain maximum heat transfer to wall of combustion 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="F23C7/06" definition-exists="false" ipc-concordant="F23C7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C7/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for heating the incoming air </text><reference><text>arrangements of regenerators and recuperators <class-ref scheme="cpc">F23L15/00</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F23C7/08" definition-exists="false" ipc-concordant="F23C7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C7/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>indirectly by a secondary fluid other than the combustion products</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="F23C9/00" definition-exists="true" ipc-concordant="F23C9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber </text><reference><text>fluidised bed combustion apparatus with means for recirculation of particles entrained from the bed <class-ref scheme="cpc">F23C10/02</class-ref>; fluidised bed combustion apparatus with devices for removal and partial reintroduction of material from the bed <class-ref scheme="cpc">F23C10/26</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="F23C9/003" definition-exists="false" ipc-concordant="F23C9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C9/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for pulverulent fuel </text><reference><text>for fluidized bed <class-ref scheme="cpc">F23C10/02</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="F23C9/006" definition-exists="false" ipc-concordant="F23C9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C9/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the recirculation taking place in the combustion chamber</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="F23C9/06" definition-exists="false" ipc-concordant="F23C9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C9/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for completing combustion</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="F23C9/08" definition-exists="false" ipc-concordant="F23C9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>F23C9/08</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber</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="F23C10/00" definition-exists="true" ipc-concordant="F23C10/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluidised bed combustion apparatus</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F23C10/002" definition-exists="false" ipc-concordant="F23C10/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F23C10/002</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>for pulverulent solid fuel </text><reference><text><class-ref scheme="cpc">F23C10/005</class-ref> - <class-ref scheme="cpc">F23C10/32</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F23C10/005" definition-exists="false" ipc-concordant="F23C10/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising two or more beds</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="F23C10/007" definition-exists="false" ipc-concordant="F23C10/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising a rotating bed</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="F23C10/01" definition-exists="false" ipc-concordant="F23C10/01" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/01</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in a fluidised bed of catalytic particles</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="F23C10/02" definition-exists="false" ipc-concordant="F23C10/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F23C10/04" definition-exists="false" ipc-concordant="F23C10/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F23C10/06" definition-exists="false" ipc-concordant="F23C10/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the circulating movement being promoted by inducing differing degrees of fluidisation in different parts of the bed</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="F23C10/08" definition-exists="false" ipc-concordant="F23C10/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F23C10/10" definition-exists="false" ipc-concordant="F23C10/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the separation apparatus being located outside the combustion chamber</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="F23C10/12" definition-exists="false" ipc-concordant="F23C10/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the particles being circulated exclusively within the combustion zone</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F23C10/14" definition-exists="false" ipc-concordant="F23C10/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the circulating movement being promoted by inducing differing degrees of fluidisation in different parts of the bed</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="F23C10/16" definition-exists="false" ipc-concordant="F23C10/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>specially adapted for operation at superatmospheric pressures, e.g. by the arrangement of the combustion chamber and its auxiliary systems inside a pressure vessel</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="F23C10/18" definition-exists="false" ipc-concordant="F23C10/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details</text></title-part><title-part><text>Accessories</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F23C10/20" definition-exists="false" ipc-concordant="F23C10/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Inlets for fluidisation air, e.g. grids</text></title-part><title-part><text>Bottoms</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="F23C10/22" definition-exists="false" ipc-concordant="F23C10/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F23C10/22</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Fuel feeders specially adapted for fluidised bed combustion apparatus </text><reference><text><class-ref scheme="cpc">F23C10/26</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="F23C10/24" definition-exists="false" ipc-concordant="F23C10/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Devices for removal of material from the bed </text><reference><text>devices for controlling the level of the bed or the amount of material in the bed <class-ref scheme="cpc">F23C10/30</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F23C10/26" definition-exists="false" ipc-concordant="F23C10/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>combined with devices for partial reintroduction of material into the bed, e.g. after separation of agglomerated parts</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="F23C10/28" definition-exists="false" ipc-concordant="F23C10/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control devices specially adapted for fluidised bed, combustion apparatus</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F23C10/30" definition-exists="false" ipc-concordant="F23C10/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for controlling the level of the bed or the amount of material in the bed</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F23C10/32" definition-exists="false" ipc-concordant="F23C10/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C10/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by controlling the rate of recirculation of particles separated from the flue gases</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F23C13/00" definition-exists="true" ipc-concordant="F23C13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C13/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Apparatus in which combustion takes place in the presence of catalytic material </text><reference><text>in a fluidised bed of catalytic particles <class-ref scheme="cpc">F23C10/01</class-ref>; radiant gas burners using catalysis for flameless combustion <class-ref scheme="cpc">F23D14/18</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="F23C13/02" definition-exists="false" ipc-concordant="F23C13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C13/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by arrangements for starting the operation, e.g. for heating the catalytic material to operating temperature</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F23C13/04" definition-exists="false" ipc-concordant="F23C13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C13/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by arrangements of two or more catalytic elements in series connection</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="F23C13/06" definition-exists="false" ipc-concordant="F23C13/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C13/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which non-catalytic combustion takes place in addition to catalytic combustion, e.g. downstream of a catalytic element</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="F23C13/08" definition-exists="true" ipc-concordant="F23C13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C13/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the catalytic material</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="F23C15/00" definition-exists="true" ipc-concordant="F23C15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C15/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Apparatus in which combustion takes place in pulses influenced by acoustic resonance in a gas mass </text><CPC-specific-text><reference><text>for generating combustion products of high pressure or high velocity <class-ref scheme="cpc">F23R7/00</class-ref>; starting devices <class-ref scheme="cpc">F23D11/42</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="7" additional-only="false" sort-key="F23C99/00" definition-exists="true" ipc-concordant="F23C99/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C99/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Subject-matter not provided for in other groups of this subclass</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F23C99/001" definition-exists="true" ipc-concordant="F23C99/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C99/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Applying electric means or magnetism to combustion </text><reference><text>for combustion engines <class-ref scheme="cpc">F02B51/04</class-ref>, <class-ref scheme="cpc">F02M27/04</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="F23C99/003" definition-exists="true" ipc-concordant="F23C99/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C99/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Combustion process using sound or vibrations </text><reference><text>for combustion engines <class-ref scheme="cpc">F02B51/06</class-ref>, <class-ref scheme="cpc">F02M27/08</class-ref>; liquid fuel burners using ultrasonic means for spraying the fuel <class-ref scheme="cpc">F23D11/34</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F23C99/005" definition-exists="true" ipc-concordant="F23C99/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C99/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Suspension-type burning, i.e. fuel particles carried along with a gas flow while burning </text><reference><text>fluidized-bed combustion apparatus <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="8" additional-only="false" sort-key="F23C99/006" definition-exists="true" ipc-concordant="F23C99/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C99/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flameless combustion stabilised within a bed of porous heat-resistant material </text><reference><text><class-ref scheme="cpc">F23C13/00</class-ref> takes precedence; gas burners with radiant combustion on a porous surface <class-ref scheme="cpc">F23D14/16</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="F23C99/008" definition-exists="true" ipc-concordant="F23C99/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C99/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Combustion methods wherein flame cooling techniques other than fuel or air staging or fume recirculation are used</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="true" level="6" additional-only="true" sort-key="F23C200/00" date-revised="2013-01-01" status="published"><classification-symbol>F23C2200/00</classification-symbol>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F23C200/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2200/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion techniques for fluent fuel</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F23C201/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2201/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Staged combustion</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C201/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2201/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Furnace staging</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F23C201/101" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2201/101</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in vertical direction, e.g. alternating lean and rich zones</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="F23C201/102" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2201/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in horizontal direction</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="F23C201/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2201/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Burner staging</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C201/30" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2201/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Staged fuel supply</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F23C201/301" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2201/301</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with different fuels in stages</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="F23C201/40" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2201/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Intermediate treatments between stages</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F23C201/401" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2201/401</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F23C202/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2202/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluegas recirculation</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C202/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2202/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Premixing fluegas with fuel and combustion air</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C202/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2202/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Premixing fluegas with fuel</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C202/30" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2202/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Premixing fluegas with combustion air</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C202/40" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2202/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Inducing local whirls around flame</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C202/50" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2202/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of recirculation rate</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F23C203/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2203/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flame cooling methods otherwise than by staging or recirculation</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C203/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2203/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using heat exchanger</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C203/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2203/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using heat absorbing device in flame </text><reference><text><class-ref scheme="cpc">F23C2203/10</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C203/30" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2203/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Injection of tempering fluids</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F23C205/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2205/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pulsating combustion</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C205/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2205/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with pulsating fuel supply</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C205/20" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2205/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with pulsating oxidant supply</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F23C206/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2206/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluidised bed combustion</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C206/10" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2206/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Circulating fluidised bed</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F23C206/101" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2206/101</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Entrained or fast fluidised bed</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="F23C206/102" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2206/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control of recirculation rate</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="F23C206/103" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2206/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling recirculating particles</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F23C700/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2700/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Special arrangements for combustion apparatus using fluent fuel</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C700/02" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2700/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion apparatus using liquid fuel</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F23C700/023" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2700/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>without pre-vaporising means</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="F23C700/026" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2700/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with pre-vaporising means</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="F23C700/04" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2700/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion apparatus using gaseous fuel</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F23C700/043" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2700/043</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for surface combustion</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="F23C700/046" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2700/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>generating heat by heating radiant bodies</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="F23C700/06" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2700/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion apparatus using pulverized fuel</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F23C700/063" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2700/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for igniting, flame-guiding, air supply in</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="F23C700/066" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2700/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Other special arrangements</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="F23C900/00" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air</text></title-part><title-part><text>Combustion processes therefor</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/01001" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/01001</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Co-combustion of biomass with coal</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/03001" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/03001</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Miniaturized combustion devices using fluid fuels</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/03002" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/03002</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion apparatus adapted for incorporating a fuel reforming device</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/03003" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/03003</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Annular combustion chambers </text><reference><text>for gas turbines <class-ref scheme="cpc">F23R3/50</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/03004" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/03004</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tubular combustion chambers with swirling fuel/air flow</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/03005" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/03005</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Burners with an internal combustion chamber, e.g. for obtaining an increased heat release, a high speed jet flame or being used for starting the combustion</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/03006" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/03006</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Reverse flow combustion chambers</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/03007" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/03007</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sealed combustion chambers with balanced flue</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/03008" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/03008</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spherical or bulb-shaped combustion chambers</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/03009" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/03009</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Elongated tube-shaped combustion chambers</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/05081" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/05081</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Disposition of burners relative to each other creating specific heat patterns</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/05082" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/05082</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Disposition of radial jet burners in relation to an impingement surface, e.g. a heat transfer surface, to obtain flame re-attachment combustion</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/06041" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/06041</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Staged supply of oxidant</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/06042" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/06042</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Annular arrangement of burners in a furnace, e.g. in a gas turbine, operated in alternate lean-rich mode</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/06043" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/06043</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Burner staging, i.e. radially stratified flame core burners</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/07001" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/07001</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Air swirling vanes incorporating fuel injectors</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/07002" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/07002</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Premix burners with air inlet slots obtained between offset curved wall surfaces, e.g. double cone burners</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/07021" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/07021</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details of lances</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/07022" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/07022</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Delaying secondary air introduction into the flame by using a shield or gas curtain</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/09001" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/09001</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling flue gas before returning them to flame or combustion chamber</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/09002" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/09002</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Specific devices inducing or forcing flue gas recirculation</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/10001" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/10001</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Use of special materials for the fluidized bed</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/10002" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/10002</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Treatment devices for the fluidizing gas, e.g. cooling, filtering</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/10003" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/10003</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fluidized beds with expanding freeboard, i.e. cross-section increasing upwardly</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/10004" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/10004</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Adding inert bed material to maintain proper fluidized bed inventory</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/10005" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/10005</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement comprising two or more beds in separate enclosures</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/10006" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/10006</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressurized fluidized bed combustors</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/10007" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/10007</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spouted fluidized bed combustors</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/10008" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/10008</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Special arrangements of return flow seal valve in fluidized bed combustors</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/13001" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/13001</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details of catalytic combustors</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/13002" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/13002</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Catalytic combustion followed by a homogeneous combustion phase or stabilizing a homogeneous combustion phase</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/99001" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/99001</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cold flame combustion or flameless oxidation processes</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/99003" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/99003</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion techniques using laser or light beams as ignition, stabilization or combustion enhancing means</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/99004" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/99004</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion process using petroleum coke or any other fuel with a very low content in volatile matters</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/99005" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/99005</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion techniques using plasma gas</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/99006" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/99006</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for starting combustion</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/99008" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/99008</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Unmixed combustion, i.e. without direct mixing of oxygen gas and fuel, but using the oxygen from a metal oxide, e.g. FeO</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/99009" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/99009</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion process using vegetable derived fuels, e.g. from rapes</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/9901" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/9901</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion process using hydrogen, hydrogen peroxide water or brown gas as fuel</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F23C900/99011" definition-exists="false" ipc-concordant="CPCONLY" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F23C2900/99011</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combustion process using synthetic gas as a fuel, i.e. a mixture of CO and H<sub>2</sub></text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></class-scheme> |