High efficiency, high pressure gas turbine engine fuel supply system
    1.
    发明授权
    High efficiency, high pressure gas turbine engine fuel supply system 有权
    高效,高压的燃气轮机发动机燃油供应系统

    公开(公告)号:US09453463B2

    公开(公告)日:2016-09-27

    申请号:US13827838

    申请日:2013-03-14

    CPC classification number: F02C7/236

    Abstract: A gas turbine engine fuel supply system includes a primary gear pump and a secondary gear pump. The primary gear pump always actively delivers fuel to the downstream fuel system, and is sized to supply 100% of the burn flow needed at a select low demand condition. The secondary gear pump is sized to make up the remainder of the flow at high demand conditions, and actively delivers fuel to the downstream fuel system only during those conditions. To supply discharge fuel pressures in excess of gear pump capability, a supercharger pump is disposed upstream of the primary and secondary gear pumps. The supercharger pump is preferably activated only during high demand conditions as an additional energy conservation measure.

    Abstract translation: 燃气涡轮发动机燃料供应系统包括主齿轮泵和副齿轮泵。 主齿轮泵总是主动地将燃料输送到下游燃料系统,并且其尺寸适于在选择的低需求条件下提供100%所需的燃烧流量。 次级齿轮泵的尺寸可以在高需求条件下弥补剩余的流量,并且仅在这些条件下才能将燃料积极地输送到下游燃料系统。 为了提供超过齿轮泵能力的排出燃料压力,增压泵设置在主齿轮泵和副齿轮泵的上游。 增压泵优选仅在高需求条件下被激活,作为附加的节能措施。

    TWO-POSITION, TWO-STAGE SERVO VALVE
    2.
    发明申请
    TWO-POSITION, TWO-STAGE SERVO VALVE 有权
    两位两用伺服阀

    公开(公告)号:US20160201812A1

    公开(公告)日:2016-07-14

    申请号:US14595581

    申请日:2015-01-13

    Abstract: A two-position, two-stage servo valve includes a valve body, a valve element, a control pressure chamber, and a control element. The valve body has an inner surface that defines a valve element chamber that includes a first control chamber and a second control chamber. The first control chamber is larger than the second control chamber. The valve element has first and second ends and is disposed within the valve element chamber and is movable between a first valve position and a second valve position. The first end is larger than the second end and is disposed within the first control chamber, and the second end is disposed within the second control chamber. The control pressure chamber includes a control pressure port that is in continuous fluid communication with the first control chamber. The control element is movable between a first control position and a second control position.

    Abstract translation: 两位两级伺服阀包括阀体,阀元件,控制压力室和控制元件。 阀体具有限定包括第一控制室和第二控制室的阀元件室的内表面。 第一控制室大于第二控制室。 阀元件具有第一和第二端并且设置在阀元件室内并且可在第一阀位置和第二阀位置之间移动。 第一端大于第二端,并设置在第一控制室内,第二端设置在第二控制室内。 控制压力室包括与第一控制室连续流体连通的控制压力端口。 控制元件可在第一控制位置和第二控制位置之间移动。

    HIGH EFFICIENCY, HIGH PRESSURE GAS TURBINE ENGINE FUEL SUPPLY SYSTEM AND METHOD
    3.
    发明申请
    HIGH EFFICIENCY, HIGH PRESSURE GAS TURBINE ENGINE FUEL SUPPLY SYSTEM AND METHOD 有权
    高效,高压气体发动机燃油供应系统及方法

    公开(公告)号:US20140196463A1

    公开(公告)日:2014-07-17

    申请号:US13827838

    申请日:2013-03-14

    CPC classification number: F02C7/236

    Abstract: A gas turbine engine fuel supply system includes a primary gear pump and a secondary gear pump. The primary gear pump always actively delivers fuel to the downstream fuel system, and is sized to supply 100% of the burn flow needed at a select low demand condition. The secondary gear pump is sized to make up the remainder of the flow at high demand conditions, and actively delivers fuel to the downstream fuel system only during those conditions. To supply discharge fuel pressures in excess of gear pump capability, a supercharger pump is disposed upstream of the primary and secondary gear pumps. The supercharger pump is preferably activated only during high demand conditions as an additional energy conservation measure.

    Abstract translation: 燃气涡轮发动机燃料供应系统包括主齿轮泵和副齿轮泵。 主齿轮泵总是主动地将燃料输送到下游燃料系统,并且其尺寸适于在选择的低需求条件下提供100%所需的燃烧流量。 次级齿轮泵的尺寸可以在高需求条件下弥补剩余的流量,并且仅在这些条件下才能将燃料积极地输送到下游燃料系统。 为了提供超过齿轮泵能力的排出燃料压力,增压泵设置在主齿轮泵和副齿轮泵的上游。 增压泵优选仅在高需求条件下被激活,作为附加的节能措施。

    COMBINED OVERSPEED AND FUEL STREAM SELECTOR SYSTEMS

    公开(公告)号:US20180135529A1

    公开(公告)日:2018-05-17

    申请号:US15354340

    申请日:2016-11-17

    CPC classification number: F02C7/232 F02C3/20 F05D2270/02 F05D2270/304

    Abstract: Embodiments of a combined overspeed and fuel stream selector system are provided. In an embodiment, the assembly includes a conduit network, a Discharge Select Valve (DSV), and a shutoff valve. The DSV is fluidly coupled to a primary fuel inlet, a secondary fuel inlet, and a primary fuel outlet included in the conduit network. The shutoff valve is fluidly coupled between the primary fuel inlet and the primary fuel outlet. In a standard operation mode, the shutoff valve is maintained in an open position, while fuel received at the primary fuel inlet is directed through the shutoff valve, through the DSV, and to the primary fuel inlet. Conversely, in a backup operation mode, the shutoff valve is closed to block fuel flow from the primary fuel inlet to the primary fuel outlet, while the DSV directs fuel flow received at the secondary fuel inlet to the primary fuel outlet.

    Aircraft fuel filter impending and actual bypass indication system
    6.
    发明授权
    Aircraft fuel filter impending and actual bypass indication system 有权
    飞机燃油滤清器即将和实际旁路指示系统

    公开(公告)号:US09441598B2

    公开(公告)日:2016-09-13

    申请号:US14075418

    申请日:2013-11-08

    Abstract: A fuel supply system includes a fuel supply line, a fuel filter, a filter bypass line, a first differential pressure sensor, a second differential pressure sensor, and a filter bypass valve. The fuel filter is disposed in series in the fuel supply line to remove particulate from the fuel. The filter bypass line has a fuel inlet upstream of the fuel filter, and an outlet that is downstream of the fuel filter. The first differential pressure sensor continuously senses differential pressure across the fuel filter, and the second differential pressure sensor selectively senses differential pressure across the fuel filter. The filter bypass valve is movable between a first non-bypassing position and a second bypassing position and controls whether only the first differential pressure sensor or both the first and second differential pressure sensors sense the differential pressure across the fuel filter.

    Abstract translation: 燃料供给系统包括燃料供给管线,燃料过滤器,过滤器旁路管路,第一差压传感器,第二压差传感器和过滤器旁通阀。 燃料过滤器串联设置在燃料供应管线中以从燃料中除去颗粒。 过滤器旁路管路具有在燃料过滤器上游的燃料入口和位于燃料过滤器下游的出口。 第一差压传感器连续地感测燃料过滤器两端的差压,第二差压传感器选择性地感测燃料过滤器两端的差压。 过滤器旁通阀可在第一非旁通位置和第二旁路位置之间移动,并且控制仅第一压差传感器或第一和第二压差传感器是否感测到燃料过滤器两端的压差。

    AIRCRAFT FUEL FILTER IMPENDING AND ACTUAL BYPASS INDICATION SYSTEM
    7.
    发明申请
    AIRCRAFT FUEL FILTER IMPENDING AND ACTUAL BYPASS INDICATION SYSTEM 有权
    飞机燃油滤清器和实际旁路指示系统

    公开(公告)号:US20150128906A1

    公开(公告)日:2015-05-14

    申请号:US14075418

    申请日:2013-11-08

    Abstract: A fuel supply system includes a fuel supply line, a fuel filter, a filter bypass line, a first differential pressure sensor, a second differential pressure sensor, and a filter bypass valve. The fuel filter is disposed in series in the fuel supply line to remove particulate from the fuel. The filter bypass line has a fuel inlet upstream of the fuel filter, and an outlet that is downstream of the fuel filter. The first differential pressure sensor continuously senses differential pressure across the fuel filter, and the second differential pressure sensor selectively senses differential pressure across the fuel filter. The filter bypass valve is movable between a first non-bypassing position and a second bypassing position and controls whether only the first differential pressure sensor or both the first and second differential pressure sensors sense the differential pressure across the fuel filter.

    Abstract translation: 燃料供给系统包括燃料供给管线,燃料过滤器,过滤器旁路管路,第一差压传感器,第二压差传感器和过滤器旁通阀。 燃料过滤器串联设置在燃料供应管线中以从燃料中除去颗粒。 过滤器旁路管路具有在燃料过滤器上游的燃料入口和位于燃料过滤器下游的出口。 第一差压传感器连续地感测燃料过滤器两端的差压,第二差压传感器选择性地感测燃料过滤器两端的差压。 过滤器旁通阀可在第一非旁通位置和第二旁路位置之间移动,并且控制仅第一压差传感器或第一和第二压差传感器是否感测到燃料过滤器两端的压差。

    Combined overspeed and fuel stream selector systems

    公开(公告)号:US10968832B2

    公开(公告)日:2021-04-06

    申请号:US15354340

    申请日:2016-11-17

    Abstract: Embodiments of a combined overspeed and fuel stream selector system are provided. In an embodiment, the assembly includes a conduit network, a Discharge Select Valve (DSV), and a shutoff valve. The DSV is fluidly coupled to a primary fuel inlet, a secondary fuel inlet, and a primary fuel outlet included in the conduit network. The shutoff valve is fluidly coupled between the primary fuel inlet and the primary fuel outlet. In a standard operation mode, the shutoff valve is maintained in an open position, while fuel received at the primary fuel inlet is directed through the shutoff valve, through the DSV, and to the primary fuel inlet. Conversely, in a backup operation mode, the shutoff valve is closed to block fuel flow from the primary fuel inlet to the primary fuel outlet, while the DSV directs fuel flow received at the secondary fuel inlet to the primary fuel outlet.

    HIGH PRESSURE, MULTIPLE METERING ZONE GAS TURBINE ENGINE FUEL SUPPLY SYSTEM AND METHOD
    9.
    发明申请
    HIGH PRESSURE, MULTIPLE METERING ZONE GAS TURBINE ENGINE FUEL SUPPLY SYSTEM AND METHOD 有权
    高压,多功能测量区气体涡轮发动机燃油供应系统及方法

    公开(公告)号:US20140196459A1

    公开(公告)日:2014-07-17

    申请号:US13828199

    申请日:2013-03-14

    CPC classification number: F02C7/22 F02C7/236

    Abstract: A gas turbine engine fuel supply system includes a primary gear pump, a secondary gear pump, and a pump bypass valve. The primary gear pump always actively delivers fuel to the downstream fuel system, and is sized to supply 100% of the burn flow needed at a select low demand condition. The secondary gear pump is sized to make up the remainder of the flow at high demand conditions, and actively delivers fuel to the downstream fuel system only during those conditions. To supply discharge fuel pressures in excess of gear pump capability, a supercharger pump is disposed upstream of the primary and secondary gear pumps. The pump bypass valve is configured to regulate fuel pressure at the primary gear pump outlet to one of a plurality of preset differential pressures above one of a plurality of fuel load pressures and prevents reverse pressurization of the gear pumps.

    Abstract translation: 燃气涡轮发动机燃料供给系统包括主齿轮泵,副齿轮泵和泵旁通阀。 主齿轮泵总是主动地将燃料输送到下游燃料系统,并且其尺寸适于在选择的低需求条件下提供100%所需的燃烧流量。 次级齿轮泵的尺寸可以在高需求条件下弥补剩余的流量,并且仅在这些条件下才能将燃料积极地输送到下游燃料系统。 为了提供超过齿轮泵能力的排出燃料压力,增压泵设置在主齿轮泵和副齿轮泵的上游。 泵旁通阀被配置为将主齿轮泵出口处的燃料压力调节到多个燃料负载压力之一的多个预设压差中的一个,并且防止齿轮泵的反向加压。

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