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108 条记录 (耗时 0.019 秒)

    Fuel control system for gas turbine engine
    31.
    发明授权
    Fuel control system for gas turbine engine 失效
    燃气轮机发动机燃油控制系统

    公开(公告)号：US3991569A

    公开(公告)日：1976-11-16

    申请号：US592734

    申请日：1975-07-03

    申请人： Trevor Stanley Smith

    发明人： Trevor Stanley Smith

    IPC分类号： F02C9/38 ,  F02C9/32 ,  F02C9/08 ,  F02C9/10

    CPC分类号： F02C9/32

    摘要： A fuel control system for a gas turbine engine has a pump, a variable metering device and a servo-operated throttle valve connected in series. A spill valve at the pump outlet is responsive to a servo pressure which is dependent on engine speed and on the total pressure drop across the metering device and the throttle valve. A selector valve is effective in one of its positions to shut the throttle valve and simultaneously to modify the servo pressure to the spill valve so as to increase spill flow to a maximum.

    摘要翻译： 一种用于燃气涡轮发动机的燃料控制系统具有串联连接的泵，可变计量装置和伺服操作的节流阀。 在泵出口处的溢流阀响应于取决于发动机转速以及计量装置和节流阀上的总压降的伺服压力。 选择阀在其一个位置有效，以关闭节流阀，同时改变溢流阀的伺服压力，从而将溢流量增加到最大。

    Throttle valve arrangement
    32.
    发明授权
    Throttle valve arrangement 失效
    节气门装置

    公开(公告)号：US3881508A

    公开(公告)日：1975-05-06

    申请号：US40300673

    申请日：1973-10-03

    申请人： LUCAS AEROSPACE LTD

    发明人： SMITH TREVOR STANLEY

    IPC分类号： F16K17/24 ,  F02C9/32 ,  F02C9/38 ,  F16K31/12

    CPC分类号： F02C9/32 ,  Y10T137/7788 ,  Y10T137/7791

    摘要： A throttle valve arrangement includes a fixed orifice in series with a variable orifice constituted by a throttle valve member coacting with ports. The throttle valve member is spring loaded to a fully open position and has an area at one end subjected to the pressure downstream of the fixed orifice to urge the throttle valve member in the same direction as the spring loading. A smaller area at the opposite end is subjected to the pressure upstream of the fixed restrictor. A step in the valve member is subjected to pressure downstream of the variable restrictor.

    摘要翻译： 节气门装置包括与由与端口共同作用的节流阀构件构成的可变孔串联的固定孔。 节流阀构件被弹簧加载到完全打开位置，并且具有一端处于固定孔下游的压力的区域，以在与弹簧加载相同的方向上推动节流阀构件。 在相对端较小的区域受到固定限流器上游的压力。 阀构件的台阶在可变节流器的下游受到压力。

    FAIL FIXED FUEL METERING DEVICE AND METHOD FOR PROVIDING BUMPLESS TRANSFER TO BACKUP
    37.
    发明申请
    FAIL FIXED FUEL METERING DEVICE AND METHOD FOR PROVIDING BUMPLESS TRANSFER TO BACKUP 失效
    FAIL固定式燃料计量装置和方法，用于提供无障碍物传送到备用

    公开(公告)号：US20050109035A1

    公开(公告)日：2005-05-26

    申请号：US10773359

    申请日：2004-02-06

    申请人： Dennis Demers

    发明人： Dennis Demers

    IPC分类号： F02C9/38 ,  F02C9/46 ,  F02C9/28

    CPC分类号： F02C9/46 ,  F02C9/38

    摘要： A fuel metering device (101) and method for metering fuel to an engine (129) provides bumpless transfer to a backup mode. A common cavity (125) provides pressure relief, fuel metering and bypass of fuel flow. A metering valve (120) for scheduling fuel flow to the engine (129) and the metering valve (120) is controlled in either a primary mode or a backup mode. A pressure relief valve (123) limits the maximum pump discharge pressure of a fuel pump. A bypass valve (122) maintains a constant pressure across the metering valve (120) by redirecting non-metered fuel flow back to a pump stage inlet. An electrical clutch (131) determines whether the metering valve (120) function is accomplished by said primary mode or said backup mode. Bumpless transfer to a backup is accomplished automatically.

    摘要翻译： 用于向发动机（129）计量燃料的燃料计量装置（101）和方法提供无扰动转移到备用模式。 公共空腔（125）提供压力释放，燃料计量和旁路燃料流。 用于调度到发动机（129）和计量阀（120）的燃料流量的计量阀（120）被控制在主模式或备用模式。 减压阀（123）限制燃油泵的最大泵排出压力。 旁通阀（122）通过将非计量燃料流重新定向到泵级入口来保持横跨计量阀（120）的恒定压力。 电动离合器（131）通过所述主模式或所述备用模式确定计量阀（120）功能是否完成。 自动完成对备份的无损传输。

    Hydromechanical control for a variable delivery, positive displacement fuel pump
    38.
    发明授权
    Hydromechanical control for a variable delivery, positive displacement fuel pump 失效
    液压机械控制可变输送，正排量燃油泵

    公开(公告)号：US5715674A

    公开(公告)日：1998-02-10

    申请号：US577776

    申请日：1995-12-22

    申请人： Charles E. Reuter ,  Timothy J. Gaudet

    发明人： Charles E. Reuter ,  Timothy J. Gaudet

    IPC分类号： F02C7/232 ,  F02C9/30 ,  F02C9/38 ,  F02C9/28

    CPC分类号： F02C9/38 ,  F02C7/232 ,  F02C9/30 ,  Y02T50/671

    摘要： A hydromechanical control system for a variable delivery, positive displacement fuel pump includes a variable area orifice metering window through which fuel from the pump outlet passes on its way to a gas turbine aircraft engine. The fuel pressures on either side of the fuel metering window are ported to corresponding sides of a spool of a pump control valve. The position of the valve spool controls the fuel flow to either side of a pump control actuator, whose movement varies the displacement of the pump. A bypass fuel flow upstream of the fuel metering valve is also ported to the pump control valve. During steady-state pump operation, a relatively small and constant value of fuel flow is bypassed through the pump control valve and back to the pump inlet. However, upon increasing or decreasing pump speed transients, the bypass fuel flow is increased or decreased in a proportional amount. In this way, improved control of the pump during transient conditions is achieved.

    摘要翻译： 用于可变输送，正排量燃料泵的液压机械控制系统包括可变区域孔口计量窗，来自泵出口的燃料通过该可变区域孔口计量窗口在其经过燃气涡轮机飞机发动机的途中通过。 燃料计量窗口两侧的燃料压力被移入泵控制阀的阀芯的相应侧面。 阀芯的位置控制燃油流向泵控制致动器的任一侧，泵运动改变泵的排量。 燃料计量阀上游的旁路燃料流也被输送到泵控制阀。 在稳态泵运行期间，通过泵控制阀旁路燃料流量相对较小且恒定的值并返回泵入口。 然而，当增加或减少泵速度瞬变时，旁路燃料流量以比例增加或减少。 以这种方式，实现了瞬态条件下泵的改进控制。

    Gas turbine engine fuel control system, and metering valve
    39.
    发明授权
    Gas turbine engine fuel control system, and metering valve 失效
    燃气涡轮发动机燃油控制系统和计量阀

    公开(公告)号：US5086617A

    公开(公告)日：1992-02-11

    申请号：US491097

    申请日：1990-03-09

    申请人： Trevor S. Smith

    发明人： Trevor S. Smith

    IPC分类号： F02C7/26 ,  F02C9/26 ,  F02C9/38

    CPC分类号： F02C7/26 ,  F02C9/263 ,  F02C9/38

    摘要： A fuel control system for a gas turbine engine has a metering valve and a shut-off valve in series, and a spill valve for spilling fuel from upstream of the metering valve in response to an overspeed condition of the engine. The spill valve and shut-off valve are responsive to respective servo pressures, and an electrically operated valve can control both servo pressures in response to a demand to shut down the engine. The electrically operated valve can also control a third servo pressure for setting a minimum flow limiting stop in the metering valve to a lower limiting level during engine starting.

    Modular sub-assembly for turbine engine fuel control systems
    40.
    发明授权
    Modular sub-assembly for turbine engine fuel control systems 失效
    用于涡轮发动机燃料控制系统的模块化子组件

    公开(公告)号：US4817376A

    公开(公告)日：1989-04-04

    申请号：US149364

    申请日：1988-01-28

    申请人： Jean-Marie Brocard ,  Eric Perrodeau ,  Maurice G. Vernochet

    发明人： Jean-Marie Brocard ,  Eric Perrodeau ,  Maurice G. Vernochet

    IPC分类号： F02C9/28 ,  F02C9/38

    CPC分类号： F02C9/28 ,  F02C9/38 ,  F05D2270/021 ,  F05D2270/091 ,  Y02T50/671

    摘要： A modular control sub-assembly in a fuel control system for a turbine engine such as a jet engine, comprises a pressure drop detector constituted by a slide axially movable in a bore of a casing, and an overspeed limiter disposed coaxially in said casing at one end of the bore containing the detector slide. The slide is rotatably driven by the overspeed limiter through a fork coupling and, when the plant overspeed threshold is exceeded, the slide is moved axially by the overspeed limiter in the same direction as on detecting an increase in the pressure drop across a fuel flow feed regulator to reduce an output control pressure signal and thereby cause a control valve to open which reduces the fuel flow and hence the overspeed.

    摘要翻译： 用于诸如喷气发动机的涡轮发动机的燃料控制系统中的模块化控制子组件包括由在壳体的孔中可轴向移动的滑块构成的压降检测器，以及一个同轴地设置在所述壳体中的超速限制器 包含检测器滑块的孔的端部。 滑块由超速限制器通过叉式联轴器可旋转地驱动，并且当超过设备超速阈值时，滑块在与检测到燃料流动进给压降的增加方向相同的方向上由超速限制器轴向移动 调节器以减小输出控制压力信号，从而导致控制阀打开，这降低了燃料流量并因此减小了超速。