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公开(公告)号：US20170268781A1
公开(公告)日：2017-09-21
申请号：US15430085
申请日：2017-02-10
申请人： ROLLS-ROYCE plc
发明人： Andrew STEVENSON , Graham THOMPSON
CPC分类号： F23R3/283 , F02C7/228 , F02C7/232 , F02C9/263 , F02C9/34 , F02C9/36 , F23K5/06 , F23R3/34 , F23R3/343 , F23R3/346 , F23R2900/00004 , Y02T50/671
摘要： A combustion staging system includes a splitting unit which receives a metered fuel flow and controllably splits the received fuel flow into pilot and mains flows. Pilot and mains fuel manifolds distribute fuel from the splitting unit to the pilot and mains stages. The splitting unit selects and deselects pilot-only operation. Both pilot and mains manifolds are selectable for pilot and mains operation. A cooling flow recirculation line has a delivery section arranged to provide a cooling flow of fuel to the mains manifold when it is deselected during pilot-only operation. Cooling flow enters the delivery section from a high pressure fuel zone of the engine and exits the return section to a low pressure fuel zone of the engine. A controller adjusts the splitting unit during pilot-only operation to partially select the mains manifold thereby increasing the pressure in the mains manifold to meet a target fuel pressure therein.
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公开(公告)号：US20170167392A1
公开(公告)日：2017-06-15
申请号：US14969743
申请日：2015-12-15
发明人： Erick Ramos , Kevin Gibbons , Lubomir A. Ribarov , Leo J. Veilleux, Jr. , James S. Elder , Richard J. Carpenter , Sushant S. Bhadange
摘要： An ecology system includes an ecology tank, a check valve, a shutoff valve, and an ejector pump. The check valve is fluidly connected to the ecology tank and is configured to allow flow from the ecology tank. The shutoff valve is fluidly connected to the check valve, and the ejector pump is fluidly connected to the shutoff valve. The ejector pump is configured to draw fuel from the ecology tank when the shutoff valve is in an open configuration.
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公开(公告)号：US08951019B2
公开(公告)日：2015-02-10
申请号：US13599168
申请日：2012-08-30
IPC分类号： F02C7/236
CPC分类号： F02C7/236 , F02C7/22 , F02C9/36 , F05D2240/40 , Y10T137/0324 , Y10T137/85954 , Y10T137/85978 , Y10T137/86163
摘要： A fuel forwarding skid for delivering fuel from a storage area to a plurality of turbines includes at least two pumps for delivering fuel to a skid outlet line. A flow control device is connected to the pumps to control an output of the pumps. A recirculation line is in communication with the skid outlet line and is adapted to return a portion of the fuel in the skid outlet line to the storage area. A flow meter is in communication with the recirculation line to measure a rate of flow in the recirculation line, and the flow control device controls the output of at least one of the pumps in accordance with the rate of flow in the recirculation line.
摘要翻译： 用于将燃料从存储区域输送到多个涡轮机的燃料驱动滑道包括用于将燃料输送到滑动出口管线的至少两个泵。 流量控制装置连接到泵以控制泵的输出。 再循环管线与滑动出口管线连通，并且适于将滑动出口管线中的一部分燃料返回到存储区域。 流量计与再循环管线连通以测量再循环管线中的流量，并且流量控制装置根据再循环管线中的流量控制至少一个泵的输出。
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公开(公告)号：US08844292B2
公开(公告)日：2014-09-30
申请号：US14278170
申请日：2014-05-15
发明人： Kevin Allan Dooley
CPC分类号： F02C7/22 , F01D21/06 , F02C7/228 , F02C7/232 , F02C9/34 , F02C9/36 , F05D2260/602 , F05D2270/3015
摘要： A method for purging fuel from a fuel system of a gas turbine engine on shutdown of the engine comprises, in one aspect, terminating a fuel supply to the fuel system and using the residual compressed air to create a reversed pressure differential in the fuel system relative to a forward pressure differential of the fuel system used to maintain fuel supply for engine operation, and under the reversed pressure differential substantially purging the fuel remaining in the system therefrom to a fuel source.
摘要翻译： 在发动机关闭时，用于从燃气涡轮发动机的燃料系统中清除燃料的方法包括在一个方面终止燃料供应到燃料系统并且使用剩余的压缩空气在燃料系统相对中产生反向的压力差 到用于维持用于发动机运转的燃料供应的燃料系统的正向压力差，以及在逆向压差下将基本上清除系统中剩余的燃料从燃料供给到燃料源。
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公开(公告)号：US08529221B2
公开(公告)日：2013-09-10
申请号：US10863298
申请日：2004-06-08
CPC分类号： F02C9/30 , F02C9/36 , F05D2270/301 , F05D2270/3015
摘要： A fuel control system (100) for supplying metered fuel flow to a gas turbine engine is disclosed that includes a variable delivery fuel pump (116) for outputting a fuel flow that includes a burn fuel flow for the gas turbine engine and a surplus fuel flow recirculated back to an inlet (124) of the variable delivery fuel pump (116) and a pump control (148, 158, 122) for controlling the output of the variable delivery fuel pump to maintain the surplus fuel flow at a substantially constant rate. A method of controlling a fuel system (100) is also disclosed.
摘要翻译： 公开了一种用于向燃气涡轮发动机供应计量燃料流的燃料控制系统（100），其包括用于输出燃料流的可变输送燃料泵（116），所述燃料流包括用于燃气涡轮发动机的燃料燃料流和剩余燃料流 再循环回到可变输送燃料泵（116）的入口（124）和用于控制可变输送燃料泵的输出以将过剩燃料流维持在基本上恒定的速率的泵控制（148,158,122）。 还公开了一种控制燃料系统（100）的方法。
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公开(公告)号：US20120167594A1
公开(公告)日：2012-07-05
申请号：US12984779
申请日：2011-01-05
CPC分类号： F02C9/36
摘要： A method for monitoring a fuel supply system for a turbine engine, the fuel supply system comprising a fuel pump and a pressure regulation valve configured to receive fuel from an outlet of the fuel pump includes determining by a bypass monitor an amount of bypass flow in a bypass path located between the pressure regulation valve and an inlet of the fuel pump; determining an amount of leakage flow in the fuel supply system by the bypass monitor based on the bypass flow; and determining whether the leakage flow exceeds a predetermined threshold by the bypass monitor, and in the event the leakage flow exceeds the predetermined threshold, indicating a need for maintenance of the fuel supply system.
摘要翻译： 一种用于监测用于涡轮发动机的燃料供应系统的方法，所述燃料供应系统包括燃料泵和被配置为从所述燃料泵的出口接收燃料的压力调节阀，包括通过旁路监视器确定一个旁路流量 旁路路径位于压力调节阀和燃油泵的入口之间; 基于所述旁路流量，通过所述旁路监视器确定所述燃料供给系统中的泄漏量; 并且通过旁路监视器确定泄漏流量是否超过预定阈值，并且在泄漏流量超过预定阈值的情况下，指示维护燃料供应系统的需要。
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公开(公告)号：US20110289931A1
公开(公告)日：2011-12-01
申请号：US13204117
申请日：2011-08-05
IPC分类号： F02C1/00
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：US07726112B2
公开(公告)日：2010-06-01
申请号：US11409213
申请日：2006-04-24
申请人： Kevin Allan Dooley
发明人： Kevin Allan Dooley
IPC分类号： F02G3/00
CPC分类号： F02C7/22 , F01D21/06 , F02C7/228 , F02C7/232 , F02C9/34 , F02C9/36 , F05D2260/602 , F05D2270/3015
摘要： A method for purging fuel from a fuel system of a gas turbine engine on shutdown of the engine comprises, in one aspect, terminating a fuel supply to the fuel system and using the residual compressed air to create a reversed pressure differential in the fuel system relative to a forward pressure differential of the fuel system used to maintain fuel supply for engine operation, and under the reversed pressure differential substantially purging the fuel remaining in the system therefrom to a fuel source.
摘要翻译： 在发动机关闭时，用于从燃气涡轮发动机的燃料系统中清除燃料的方法包括在一个方面终止燃料供应到燃料系统并且使用剩余的压缩空气在燃料系统相对中产生反向的压力差 到用于维持用于发动机运转的燃料供应的燃料系统的正向压力差，以及在逆向压差下将基本上清除系统中剩余的燃料从燃料供给到燃料源。
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公开(公告)号：US20010027641A1
公开(公告)日：2001-10-11
申请号：US09814697
申请日：2001-03-23
发明人： Andrew Clarke , Russell A. Loxley
IPC分类号： F02C007/22
CPC分类号： F02C7/262 , F02C7/232 , F02C7/236 , F02C9/36 , F05D2270/092 , F05D2270/301
摘要： A bypass valve (22) and vent valve (24) are connected in parallel with the normal flow path between a low-pressure fuel pump (12) and a high-pressure fuel pump (16). When a low fuel inlet pressure is detected the bypass valve (22) and vent valve (24) are opened. Gas is vented out of the fuel system and bypasses a heat exchanger (14) between the low and high-pressure pumps (12 and 16), thus avoiding the need to overcome vapor lock between the two pumps. The vent valve (24) passes gas to a drain tank (26) and then closes to prevent the escape of fuel as the high-pressure pump (16) primes.
摘要翻译： 旁通阀（22）和排气阀（24）与低压燃料泵（12）和高压燃料泵（16）之间的正常流路并联连接。 当检测到低燃料入口压力时，旁通阀（22）和排气阀（24）打开。 气体从燃料系统排出并绕过低压泵和高压泵（12和16）之间的热交换器（14），从而避免了克服两个泵之间的气体锁定的需要。 排气阀（24）将气体传送到排水箱（26），然后关闭，以防止高压泵（16）吸入时燃料溢出。
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10.发明授权Turbine engine control system providing electronic power turbine governor and temperature/torque limiting 失效涡轮发动机控制系统，提供电动涡轮调速器和温度/转矩限制公开(公告)号：US06282882B1
公开(公告)日：2001-09-04
申请号：US09418053
申请日：1999-10-14
IPC分类号： F02C928
CPC分类号： F02C7/26 , F02C9/28 , F02C9/36 , F05D2270/112 , F05D2270/114 , F05D2270/3032
摘要： A turbine engine (49) fuel delivery system of the type including a pneumatic governor has an electronic governor and an engine excess stress avoidance feature which disable the pneumatic governor (70) so long as the engine speed exceeds a prescribed value and an electronic control unit (45) continues to function properly. The system transfers governing responsibility to the electronic control unit (45) which controls a torque motor and solenoid valve fuel diversion line (22). The system monitors an engine (49) operating parameter such as gas generator speed (37), power turbine speed, engine output torque, or engine temperature and further diminishes fuel flow to the engine (49) when the monitored parameter exceeds a threshold value. The system resumes normal speed governoring flow when that parameter returns to an acceptable level The system also senses rotor blade pitch to reduce rotor droop and increases fuel flow to the engine (49) when the pitch (44) increases, and decreasing the fuel flow to the engine (49) when the rotor blade pitch (44) decreases.
摘要翻译： 一种包括气动调速器的涡轮发动机（49）燃料输送系统具有电子调速器和发动机超压应力避免特征，只要发动机转速超过规定值即禁用气动调速器（70），电子控制单元 （45）继续正常工作。 该系统将控制责任转移到控制扭矩电动机和电磁阀燃料转向管线（22）的电子控制单元（45）。 当所监视的参数超过阈值时，系统监视发动机（49）的运行参数，例如气体发生器速度（37），动力涡轮机转速，发动机输出扭矩或发动机温度，并进一步减少到发动机（49）的燃料流量。 当该参数返回到可接受的水平时，该系统恢复正常速度调节流量。当间距（44）增加时，系统还感测转子叶片间距以减少转子下垂并增加到发动机（49）的燃料流量，并且将燃料流量减少到 当转子叶片间距（44）减小时，发动机（49）。
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