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公开(公告)号：US20170175639A1
公开(公告)日：2017-06-22
申请号：US14974010
申请日：2015-12-18
发明人： Harris Shafique , David Waddleton
CPC分类号： F02C7/236 , B64D37/10 , F02C7/224 , F02C9/36 , Y02T50/672
摘要： A fuel system for a composite aircraft is described which includes an ejector pump having a vacuum inlet in communication with a fuel storage tank, an engine feed pump having an inlet in fluid communication with an outlet of the ejector pump, a primary outlet in communication with an engine, and a motive flow outlet, upstream of an oil-fuel heat exchanger, that is in fluid communication with an inlet of the ejector pump. A motive flow pump assembly is disposed between the motive flow outlet of the engine feed pump and the inlet of the ejector pump. The motive flow pump assembly includes an inlet screen and a motive flow pump, the inlet screen having a plurality of openings therein and a hydrophobic upstream surface. The openings are dimensioned to prevent passage of particles greater than a selected threshold size while allowing liquids to flow therethrough.
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2.发明授权Fuel feed circuit for an aeroengine having a high pressure pump system with two pumps 有权具有两个泵的高压泵系统的航空发动机的燃料供给回路公开(公告)号：US09500135B2
公开(公告)日：2016-11-22
申请号：US13500499
申请日：2010-09-30
申请人： Nicolas Alain Bader , Regis Michel Paul Deldalle , Laurent Gilbert Yves Hodinot , Nicolas Potel
发明人： Nicolas Alain Bader , Regis Michel Paul Deldalle , Laurent Gilbert Yves Hodinot , Nicolas Potel
摘要： A fuel feed circuit for an aeroengine, the circuit including a high-pressure pumping system for delivering fuel at high pressure to combustion chamber injectors, the high-pressure pumping system including first and second positive displacement gear pumps driven simultaneously by the engine. A hydraulic switch member is interposed between respective outlets of the pumps, which makes it possible, in one state, to combine outlet flows from the two pumps to deliver fuel at high pressure to the combustion chamber injectors, and in another state, to discharge some or all of outlet flow from the first pump to a low-pressure feed line, an electrical control member serving to cause the hydraulic switch member to pass from one state to the other.
摘要翻译： 一种用于航空发动机的燃料供给回路，该回路包括用于将燃料高压地输送到燃烧室喷射器的高压泵送系统，所述高压泵送系统包括由发动机同时驱动的第一和第二正排量齿轮泵。 液压开关构件介于泵的相应出口之间，这使得在一个状态下可以组合来自两个泵的出口流将高压燃料输送到燃烧室喷射器，并且在另一种状态下排出一些 或从第一泵到低压进料管线的所有出口流量，用于使液压开关构件从一个状态传递到另一个状态的电气控制构件。
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公开(公告)号：US20160265444A1
公开(公告)日：2016-09-15
申请号：US15067921
申请日：2016-03-11
CPC分类号： F02C9/36 , F02C7/222 , F02C7/236 , F02C9/263 , F02C9/38 , F05D2220/62 , F05D2220/76 , F05D2270/07
摘要： A fuel system for an aircraft is provided having an improved fluid circuit and method of operation. Un-burnt fuel is directed via a return loop towards a fuel tank reservoir. A turbine is located in the return loop and upstream from the fuel tank. The pressurized un-burnt fuel energizes the turbine and the fuel passes to the fuel tank. The turbine is harnessed to a generator for providing a power.
摘要翻译： 提供一种用于飞机的燃料系统，其具有改进的流体回路和操作方法。 未燃烧的燃料通过返回回路被引向燃料箱储存器。 涡轮机位于回路中并且位于燃料箱的上游。 加压的未燃烧的燃料激励涡轮并且燃料传递到燃料箱。 涡轮机被利用到发电机以提供电力。
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公开(公告)号：US09267477B2
公开(公告)日：2016-02-23
申请号：US13644674
申请日：2012-10-04
发明人： Daniel James Bickley
CPC分类号： F02M69/02 , F02C7/232 , F02C7/236 , F02C7/32 , F02C9/263 , F02C9/32 , F02C9/36 , F05D2260/406
摘要： A fuel system comprises a fuel pump operable to deliver fuel through a supply line to a pressure raising valve, the pressure raising valve including a control chamber, the fuel pressure within the control chamber controlling a minimum pump pressure differential, and an actuator control servo-valve operable to control the supply of fuel from the supply line to an actuator control line, wherein the actuator control servo-valve further controls the pressure of fuel applied to the control chamber of the pressure raising valve.
摘要翻译： 燃料系统包括可操作以将燃料通过供应管路输送到升压阀的燃料泵，所述升压阀包括控制室，控制室内的燃料压力控制最小泵压差，以及致动器控制伺服 - 阀可操作以控制从供应管线到致动器控制管线的燃料供应，其中致动器控制伺服阀进一步控制施加到升压阀的控制室的燃料的压力。
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公开(公告)号：US08234875B2
公开(公告)日：2012-08-07
申请号：US13204117
申请日：2011-08-05
CPC分类号： F02C9/263 , F02C7/232 , F02C9/30 , F02C9/36 , F05D2260/602
摘要： A fuel system for a turbine engine is provided. The fuel system includes a positive displacement pump driven by an electric motor. The pump is rotated in a first direction to deliver fuel to the turbine engine, and a second direction for evacuating fuel from the turbine engine. A shut-off check valve is open in a first direction in response to a first differential pressure created by the pump in the first direction. The shut-off check valve is biased to a closed position when the pump is rotating in the second direction. An ecology check valve is biased to a closed position in the first direction and open in the second direction in response to a second differential pressure created by the pump. The check valves open and close automatically in response to the pressures generated by the positive displacement pump in each of the first and second rotational directions. In this manner, simple, reliable valves are utilized to regulate the flow of fuel in the fuel system.
摘要翻译： 提供了一种用于涡轮发动机的燃料系统。 燃料系统包括由电动机驱动的正排量泵。 泵沿第一方向旋转以将燃料输送到涡轮发动机，以及用于从涡轮发动机排出燃料的第二方向。 关闭止回阀响应于泵沿第一方向产生的第一差压在第一方向打开。 当泵沿第二方向旋转时，关闭止回阀被偏压到关闭位置。 响应于由泵产生的第二差压，生态止回阀被偏压到第一方向上的关闭位置并沿第二方向打开。 响应于正排量泵在第一和第二旋转方向中的每一个中产生的压力，止回阀自动打开和关闭。 以这种方式，使用简单可靠的阀来调节燃料系统中的燃料流。
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公开(公告)号：US20100031658A1
公开(公告)日：2010-02-11
申请号：US11621685
申请日：2007-01-10
CPC分类号： F02C9/263 , F02C7/232 , F02C9/30 , F02C9/36 , F05D2260/602
摘要： A fuel system for a turbine engine is provided. The fuel system includes a positive displacement pump driven by an electric motor. The pump is rotated in a first direction to deliver fuel to the turbine engine, and a second direction for evacuating fuel from the turbine engine. A shut-off check valve is open in a first direction in response to a first differential pressure created by the pump in the first direction. The shut-off check valve is biased to a closed position when the pump is rotating in the second direction. An ecology check valve is biased to a closed position in the first direction and open in the second direction in response to a second differential pressure created by the pump. The check valves open and close automatically in response to the pressures generated by the positive displacement pump in each of the first and second rotational directions. In this manner, simple, reliable valves are utilized to regulate the flow of fuel in the fuel system.
摘要翻译： 提供了一种用于涡轮发动机的燃料系统。 燃料系统包括由电动机驱动的正排量泵。 泵沿第一方向旋转以将燃料输送到涡轮发动机，以及用于从涡轮发动机排出燃料的第二方向。 关闭止回阀响应于泵沿第一方向产生的第一差压在第一方向打开。 当泵沿第二方向旋转时，关闭止回阀被偏压到关闭位置。 响应于由泵产生的第二差压，生态止回阀被偏压到第一方向上的关闭位置并沿第二方向打开。 响应于正排量泵在第一和第二旋转方向中的每一个中产生的压力，止回阀自动打开和关闭。 以这种方式，使用简单可靠的阀来调节燃料系统中的燃料流。
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公开(公告)号：US20080228370A1
公开(公告)日：2008-09-18
申请号：US12128864
申请日：2008-05-29
申请人： Mark Andrew Runkle , Steven William Backman , Paul David Black , Mark Andrew Cournoyer , Kevin Andrew Spengler , Daniel D. Morrison , Robert Joseph Iasillo , Christopher David Miller
发明人： Mark Andrew Runkle , Steven William Backman , Paul David Black , Mark Andrew Cournoyer , Kevin Andrew Spengler , Daniel D. Morrison , Robert Joseph Iasillo , Christopher David Miller
IPC分类号： F02C9/00
摘要： A method of operating a gas turbine engine is provided. The method includes introducing a fuel into a combustor, detecting a failure of ignition of the fuel, and preventing ignition until the introduced fuel is substantially removed from the gas turbine engine.
摘要翻译： 提供了一种操作燃气涡轮发动机的方法。 该方法包括将燃料引入燃烧器中，检测燃料点火失败，并且防止着火，直到引入的燃料从燃气涡轮发动机基本上除去。
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公开(公告)号：US20030205042A1
公开(公告)日：2003-11-06
申请号：US09985571
申请日：2001-11-05
IPC分类号： F02C009/28
CPC分类号： F02C9/28 , F02C9/36 , F05D2270/053 , F05D2270/301 , F05D2270/304 , Y02T50/671
摘要： An overthrust protection system for a gas turbine in which fuel is supplied at a controlled flow rate to a combustor (4) of the gas turbine. The overthrust protection system uses a bypass valve (24) to divert fuel flow away from the combustor (4). The opening of this valve is controlled by an overthrust controller (28) to divert fuel flow in response to a detected overthrust condition of the gas turbine. Diverting some of the fuel flow in this manner brings about a reduction in the thrust, allowing the overthrust condition to be controlled without resorting to a complete shut down of the gas turbine.
摘要翻译： 一种用于燃气轮机的推力保护系统，其中燃料以受控的流量供应到燃气轮机的燃烧器（4）。 推力保护系统使用旁通阀（24）将燃料流转离燃烧器（4）。 该阀的打开由超过推力控制器（28）控制，以根据检测到的燃气轮机的推力状态来转向燃料流量。 以这种方式转移一些燃料流动导致推力的减小，允许在不诉诸燃气轮机的完全关闭的情况下控制推力状态。
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公开(公告)号：US06619025B2
公开(公告)日：2003-09-16
申请号：US10024692
申请日：2001-12-14
申请人： Donald E. Wernberg
发明人： Donald E. Wernberg
IPC分类号： F02G300
CPC分类号： F02C9/36 , F02C7/232 , F02C7/26 , F02C9/26 , F05D2260/602 , F05D2260/607 , Y02T50/675
摘要： The present invention is directed toward an ecology valve that drains working fuel to the sump chamber of the ecology valve upon engine shut down. The ecology valve has a piston slidable in the piston chamber between shut-off and run positions. The piston divides the piston chamber into a sump chamber and an actuation chamber. Upon engine shut down, the piston slides toward the shut-off position and suctions sufficient fuel from the fuel manifold into the sump chamber to prevent coking of the nozzles. Upon the next engine start up, the actuation chamber is pressurized which drives the piston toward the run position and returns fuel contained in sump chamber to the fuel manifold. A drain passageway opens and fluidically connects the actuation chamber to sump chamber when the piston is sliding toward the shut-off position which allows fuel contained in the actuation chamber to drain to the sump chamber.
摘要翻译： 本发明涉及一种在发动机关闭时将工作燃料排入生态阀的贮槽室的生态阀。 生态阀具有在活塞室内在关闭和运行位置之间可滑动的活塞。 活塞将活塞室分成贮槽室和致动室。 在发动机关闭时，活塞向关闭位置滑动并从燃料歧管吸入充足的燃料进入集油室，以防止喷嘴的焦化。 在下一个发动机启动时，致动室被加压，其将活塞朝向运行位置驱动，并将容纳在贮槽室中的燃料返回到燃料歧管。 当活塞向关闭位置滑动时，排水通道打开并将致动室流体连接到贮槽室，该位置允许包含在致动室中的燃料排放到贮槽室。
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公开(公告)号：US20030110775A1
公开(公告)日：2003-06-19
申请号：US10024692
申请日：2001-12-14
发明人： Donald E. Wernberg
IPC分类号： F02C009/26
CPC分类号： F02C9/36 , F02C7/232 , F02C7/26 , F02C9/26 , F05D2260/602 , F05D2260/607 , Y02T50/675
摘要： The present invention is directed toward an ecology valve that drains working fuel to the sump chamber of the ecology valve upon engine shut down. The ecology valve has a piston slidable in the piston chamber between shut-off and run positions. The piston divides the piston chamber into a sump chamber and an actuation chamber. Upon engine shut down, the piston slides toward the shut-off position and suctions sufficient fuel from the fuel manifold into the sump chamber to prevent coking of the nozzles. Upon the next engine start up, the actuation chamber is pressurized which drives the piston toward the run position and returns fuel contained in sump chamber to the fuel manifold. A drain passageway opens and fluidically connects the actuation chamber to sump chamber when the piston is sliding toward the shut-off position which allows fuel contained in the actuation chamber to drain to the sump chamber.
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