Device For Supplying Fuel To A Gas Turbine Engine With Regulated Fuel Flow Rate
    1.
    发明申请
    Device For Supplying Fuel To A Gas Turbine Engine With Regulated Fuel Flow Rate 有权
    向具有调节燃油流量的燃气轮机发动机供油的装置

    公开(公告)号:US20080163931A1

    公开(公告)日:2008-07-10

    申请号:US11816535

    申请日:2006-02-17

    IPC分类号: F16K31/02

    摘要: A fuel supply device includes a fuel supply pipe receiving fuel at a non-regulated pressure delivered by a pump, a device for measuring the flow rate of fuel in the pipe, a first controlled variable-restriction valve mounted in the supply pipe, a control system connected to the flow rate measurement device and to the first valve to control the valve to deliver fuel to the engine at a desired flow rate under normal operating conditions of the engine, a second controlled variable-restriction valve mounted in the supply pipe in series with the first valve, and a control for controlling the second valve to enable the engine to be supplied with fuel at an adjustable, reduced flow rate in response to detecting over-speed or over-thrust of the engine.

    摘要翻译: 燃料供给装置包括燃料供给管,其接收由泵输送的非调节压力的燃料,用于测量管道内的燃料的流量的装置,安装在供给管中的第一受控可变截止阀,控制装置 连接到流量测量装置和第一阀的控制阀,以在发动机的正常运行条件下以期望的流量将燃料输送到发动机,第二受控可变节流阀串联安装在供应管中 具有第一阀,以及用于控制第二阀的控制器,以响应于检测到发动机的超速或超推力而使发动机以可调节的减小的流量供应燃料。

    Device for supplying fuel to a gas turbine engine with regulated fuel flow rate
    3.
    发明授权
    Device for supplying fuel to a gas turbine engine with regulated fuel flow rate 有权
    用于向具有调节的燃料流量的燃气涡轮发动机供应燃料的装置

    公开(公告)号:US08549863B2

    公开(公告)日:2013-10-08

    申请号:US11816535

    申请日:2006-02-17

    IPC分类号: F02C9/28

    摘要: A fuel supply device includes a fuel supply pipe receiving fuel at a non-regulated pressure delivered by a pump, a device for measuring the flow rate of fuel in the pipe, a first controlled variable-restriction valve mounted in the supply pipe, a control system connected to the flow rate measurement device and to the first valve to control the valve to deliver fuel to the engine at a desired flow rate under normal operating conditions of the engine, a second controlled variable-restriction valve mounted in the supply pipe in series with the first valve, and a control for controlling the second valve to enable the engine to be supplied with fuel at an adjustable, reduced flow rate in response to detecting over-speed or over-thrust of the engine.

    摘要翻译: 燃料供给装置包括燃料供给管,其接收由泵输送的非调节压力的燃料,用于测量管道内的燃料的流量的装置,安装在供给管中的第一受控可变截止阀,控制装置 连接到流量测量装置和第一阀的控制阀,以在发动机的正常运行条件下以期望的流量将燃料输送到发动机,第二受控可变节流阀串联安装在供应管中 具有第一阀,以及用于控制第二阀的控制器,以响应于检测到发动机的超速或超推力而使发动机以可调节的减小的流量供应燃料。

    Aircraft Engine Fuel Supply
    4.
    发明申请
    Aircraft Engine Fuel Supply 有权
    飞机发动机燃油供应

    公开(公告)号:US20110139123A1

    公开(公告)日:2011-06-16

    申请号:US11816586

    申请日:2006-02-17

    IPC分类号: F02M59/36 F02M37/04 F02M37/00

    摘要: A centrifugal pump driven by mechanical coupling with an engine has a low pressure inlet receiving fuel from a fuel circuit of an aircraft, a high pressure outlet connected to a regulator circuit for regulating the flow rate of fuel supplied to the engine, and an assistance pump unit that is electrically controlled, having an inlet connected to the aircraft fuel circuit and an outlet connected to the flow rate regulator circuit so as to deliver, via its outlet, fuel that is at a predetermined minimum pressure, the pressure of the fuel supplied to the regulator circuit being the higher of the pressures delivered by the centrifugal pump and the assistance pump unit.

    摘要翻译: 由发动机机械联接驱动的离心泵具有从飞行器的燃料回路接收燃料的低压入口,连接到用于调节供应到发动机的燃料的流量的调节器电路的高压出口以及辅助泵 具有电控制的单元,具有连接到飞行器燃料回路的入口和连接到流量调节器电路的出口,以便经由其出口将处于预定最小压力的燃料输送到供应到 调节器电路是离心泵和辅助泵单元输送的压力越高。

    Self-testable architecture for overspeed limitation and cutoff systems when the turbojet stops
    6.
    发明授权
    Self-testable architecture for overspeed limitation and cutoff systems when the turbojet stops 有权
    涡轮喷气停止时超速限制和切断系统的自检结构

    公开(公告)号:US06393353B1

    公开(公告)日:2002-05-21

    申请号:US09527831

    申请日:2000-03-17

    IPC分类号: G06F1700

    摘要: A hydraulic fuel control unit (100) for an aircraft engine comprises means (14, 2, 16) for controlling cutoff on stop and cutoff on overspeed of a fuel flow transferred by an output (1) to the engine injectors. A logic module (140) controls the position of a state switch (121, 143) into a test position or a normal position. The state module is managed such that the operation of the overspeed module can be tested each time the system is started on the ground. The architecture of the hydraulic unit (100) is such that operation of the cutoff on stop can be tested during each landing. Correct operation in the overspeed test and in the cutoff on stop test is observed by detecting a difference between a control value (153) of an allowable fuel flow that depends mainly on the engine speed, and a real flow value detected by sensors (22).

    摘要翻译: 用于飞行器发动机的液压燃料控制单元(100)包括用于控制停止的切断和用于由输出(1)传递到发动机喷射器的燃料流超速切断的装置(14,2)。 逻辑模块(140)将状态开关(121,143)的位置控制到测试位置或正常位置。 对状态模块进行管理,以便每次系统在地面上启动时可以测试超速模块的运行。 液压单元(100)的结构使得可以在每个着陆期间测试停止停止的操作。 通过检测主要取决于发动机转速的允许燃料流量的控制值(153)和由传感器(22)检测到的实际流量值之间的差异,可以观察到超速测试和停止测试中的停止测试中的正确操作, 。

    Device for controlling the pressure and delivery of a fuel feed to a servovalve unit
    7.
    发明授权
    Device for controlling the pressure and delivery of a fuel feed to a servovalve unit 有权
    用于控制燃料供给到伺服阀装置的压力和输送的装置

    公开(公告)号:US06497100B2

    公开(公告)日:2002-12-24

    申请号:US09805036

    申请日:2001-03-14

    IPC分类号: F02C722

    摘要: A device for controlling fuel pressure and delivery as necessary for the operation of the servovalves of an aircraft engine is disposed downstream of a fuel injector feed unit of the engine. The device comprises a chamber maintained at the servovalve feed pressure by the movement of a closure member to vary the opening of a port of the chamber. The closure member moves under the action of opposing forces comprising inter alia a force in the opening direction proportional to the servovalve feed pressure. An equilibrium position of the closure member is a function of pressure resulting from the engine speed. An injector delivery control loop is therefore isolated from a servovalve pressure and delivery control loop.

    摘要翻译: 用于控制燃料压力和根据飞行器发动机的伺服阀的操作所需的输送的装置设置在发动机的燃料喷射器进料单元的下游。 该装置包括通过关闭构件的移动维持在伺服阀进料压力的室,以改变腔室的开口的开口。 闭合构件在相反力的作用下移动,特别是包括与开启方向的力成比例的伺服阀进给压力。 关闭构件的平衡位置是由发动机转速产生的压力的函数。 因此,注射器输送控制回路与伺服阀压力和输送控制回路隔离。

    Fail-freeze servovalve
    10.
    发明授权

    公开(公告)号:US06640833B2

    公开(公告)日:2003-11-04

    申请号:US10001976

    申请日:2001-12-05

    IPC分类号: F15B13043

    摘要: The servovalve comprises an electric motor and a distributor valve integrating a hydraulic slide under the control of said electric motor and further comprising two load channels pierced in a central rod on which blocks are mounted for co-operating with communication orifices of the distributor valve and co-operating with one another and with the ends of the hydraulic slide to define annular chambers including two load chambers connected to the receiver member to be controlled. The two load channels put each of the load chambers into communication respectively with an immediately adjacent annular chamber so as to ensure that the same pressure exists on both sides of the blocks separating said two chambers. In a predetermined safe position (referred to a “fail-freeze” position) in which the blocks close the load orifices with clearance, the leaks through the load orifices that result from the clearance are drained at determined low pressure, thus enabling the drift of the controlled member to be controlled.