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33 lines
18 KiB
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33 lines
18 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="F15D" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>F15D</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS </text><reference><CPC-specific-text><text>nozzles, spray heads <class-ref scheme="cpc">B05B</class-ref>; devices to decrease friction or resistance or to increase speed of ships <class-ref scheme="cpc">B63B</class-ref>; ship rudders <class-ref scheme="cpc">B63H25/38</class-ref>; influencing the flow or the viscosity of fluids with chemical additives <class-ref scheme="cpc">C09K3/00</class-ref>, <class-ref scheme="cpc">C10M</class-ref>; hydraulic engineering <class-ref scheme="cpc">E02B</class-ref></text></CPC-specific-text><text>; fluid circuit elements <class-ref scheme="cpc">F15C</class-ref>; </text><CPC-specific-text><text>one-way check valves <class-ref scheme="cpc">F16K15/00</class-ref></text></CPC-specific-text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass comprises boundary-layer control and other arrangements and methods, not provided for in other classes, for influencing the flow of fluids relative to constraining surfaces and after leaving these surfaces, e.g. producing or removing turbulence, deflecting jets, guiding flow through bends in conduits, affecting distribution of fluid in a conduit, reducing fluid friction.</note-paragraph></note><note type="warning"><note-paragraph>In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="F15D1/00" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F15D1/00" definition-exists="true" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Influencing flow of fluids</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15D1/0005" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/0005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Baffle plates</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="F15D1/001" definition-exists="true" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flow of fluid from conduits such as pipes, sleeves, tubes, with equal distribution of fluid flow over the evacuation surface</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="F15D1/0015" definition-exists="true" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/0015</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Whirl chambers</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="F15D1/002" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-02-01" status="published"><classification-symbol>F15D1/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by influencing the boundary layer </text><reference><text><class-ref scheme="cpc">F15D1/06</class-ref> and <class-ref scheme="cpc">F15D1/12</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15D1/0025" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/0025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using passive means, i.e. without external energy supply</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="F15D1/003" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising surface features, e.g. indentations or protrusions </text><reference><text><class-ref scheme="cpc">F15D1/0055</class-ref>, <class-ref scheme="cpc">F15D1/006</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15D1/0035" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/0035</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in the form of riblets</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15D1/004" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>oriented essentially parallel to the direction of flow</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="F15D1/0045" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/0045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>oriented essentially perpendicular to the direction of flow</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F15D1/005" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in the form of dimples</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15D1/0055" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/0055</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising apertures in the surface, through which fluid is withdrawn from or injected into the flow</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15D1/006" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising moving surfaces, wherein the surface, or at least a portion thereof is moved or deformed by the fluid flow</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="F15D1/0065" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/0065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using active means, e.g. supplying external energy or injecting fluid</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="F15D1/007" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising surfaces being moved by external supplied energy</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15D1/0075" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/0075</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising electromagnetic or electrostatic means for influencing the state of the fluid, e.g. for ionising the fluid or for generating a plasma</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15D1/008" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising fluid injection or suction means</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="F15D1/0085" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/0085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Methods of making characteristic surfaces for influencing the boundary layer</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15D1/009" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-02-01" status="published"><classification-symbol>F15D1/009</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of vortex rings</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="F15D1/0095" definition-exists="false" ipc-concordant="F15D1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-02-01" status="published"><classification-symbol>F15D1/0095</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of injecting jet pulses of fluid wherein the injected fluid is taken from the fluid and re-injected again, e.g. synthetic jet actuators </text><reference><text><class-ref scheme="cpc">F15D1/008</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="F15D1/02" definition-exists="false" ipc-concordant="F15D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in pipes or conduits</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15D1/025" definition-exists="false" ipc-concordant="F15D1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2019-02-01" status="published"><classification-symbol>F15D1/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of orifice or throttle elements</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15D1/04" definition-exists="false" ipc-concordant="F15D1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of guide vanes in pipe elbows or duct bends</text></title-part><title-part><text>Construction of pipe conduit elements or elbows with respect to flow, specially for reducing losses in flow</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="F15D1/06" definition-exists="false" ipc-concordant="F15D1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by influencing the boundary layer </text><CPC-specific-text><reference><text>use of materials, e.g. to reduce surface friction <class-ref scheme="cpc">C09K3/00</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F15D1/065" definition-exists="false" ipc-concordant="F15D1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Whereby an element is dispersed in a pipe over the whole length or whereby several elements are regularly distributed in a pipe</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="F15D1/08" definition-exists="false" ipc-concordant="F15D1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of jets leaving an orifice </text><reference><text>nozzles or outlets with means for mechanically breaking up or deflecting the jet <class-ref scheme="cpc">B05B</class-ref>, e.g. <class-ref scheme="cpc">B05B1/26</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15D1/10" definition-exists="false" ipc-concordant="F15D1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>around bodies of solid material</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F15D1/12" definition-exists="true" ipc-concordant="F15D1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by influencing the boundary layer </text><CPC-specific-text><reference><text>use of materials, e.g. to reduce surface friction <class-ref scheme="cpc">C09K3/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F15D1/14" definition-exists="false" ipc-concordant="F15D1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F15D1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Diverting flow into alternative channels </text><reference><text>in hydraulic engineering <class-ref scheme="cpc">E02B</class-ref></text></reference></title-part></class-title></classification-item></classification-item></classification-item></classification-item></class-scheme> |