Fail-freeze servovalve
    1.
    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.

    Rotary valve assembly
    2.
    发明授权
    Rotary valve assembly 失效
    旋转阀总成

    公开(公告)号:US5413143A

    公开(公告)日:1995-05-09

    申请号:US190554

    申请日:1994-02-02

    IPC分类号: F16K11/074

    摘要: A rotary valve assembly is disclosed in which a rotary valve member is located within a casing having one or more fluid inlets and a plurality of fluid outlets. The rotary valve member has a fluid conduit which extends in a generally radial direction and which communicates with the fluid inlet. Fluid orifices communicate with the fluid conduit and exit through opposite sides of the rotary valve member to thereby minimize, or eliminate altogether, axial forces acting on the rotary valve member. Fluid outlet passages communicate with the two fluid orifices during at least part of the rotation of the rotary valve member to direct the pressurized fluid to the valve outlets. The rotary valve may include a pair of rotary valve members drivingly connected to each other such that they rotate synchronously. The connection may include gear teeth formed on the adjacent peripheries of the rotary valve members such that rotation of one of the valve members causes rotation of the other. Each valve member may have a separate fluid inlet and separate fluid outlets.

    摘要翻译: 公开了一种旋转阀组件,其中旋转阀构件位于具有一个或多个流体入口和多个流体出口的壳体内。 旋转阀构件具有在大致径向方向上延伸并与流体入口连通的流体导管。 流体孔与流体导管连通并通过旋转阀构件的相对侧离开,从而最小化或完全消除作用在旋转阀构件上的轴向力。 流体出口通道在旋转阀构件的至少部分旋转期间与两个流体孔连通,以将加压流体引导到阀出口。 旋转阀可以包括一对旋转阀构件,它们彼此驱动地相互连接,使得它们同步旋转。 连接可以包括形成在旋转阀构件的相邻周边上的齿轮齿,使得阀构件中的一个的旋转引起另一个的旋转。 每个阀构件可以具有单独的流体入口和单独的流体出口。

    Servo valve control device
    3.
    发明授权
    Servo valve control device 失效
    伺服阀控制装置

    公开(公告)号:US4561470A

    公开(公告)日:1985-12-31

    申请号:US724357

    申请日:1985-04-18

    摘要: A control system for a fluid actuated control member is disclosed which uizes a pair of electrically controlled servo valves to control the supply of servo pressure fluid to a control valve piston. The pair of servo valves are electrically controlled such that, under normal conditions, one of the servo valves is operative to supply the servo pressure signal, while the other servo valve remains in an inert, open position. Upon the detection of a malfunction in the operative servo valve, electrical switches render the malfunctioning valve inert and transfer the operative capabilities to the second servo valve. The hydraulic control system does retain 100% of its performance capabilities following a malfunction of the initial servo valve.

    摘要翻译: 公开了一种用于流体致动的控制构件的控制系统,其利用一对电控伺服阀来控制向控制阀活塞供应伺服压力流体。 一对伺服阀被电控制,使得在正常状态下,一个伺服阀可操作以提供伺服压力信号,而另一个伺服阀保持在惰性的打开位置。 当检测到操作伺服阀的故障时,电气开关使得故障阀处于惰性状态并将操作能力传递给第二伺服阀。 在初始伺服阀发生故障后,液压控制系统确保其性能的100%。

    Fuel circuit with protected main filter
    4.
    发明授权
    Fuel circuit with protected main filter 有权
    带保护主过滤器的燃油回路

    公开(公告)号:US06251270B1

    公开(公告)日:2001-06-26

    申请号:US09481382

    申请日:2000-01-12

    IPC分类号: B01D3530

    摘要: A main filter for an airplane fuel circuit or a fuel circuit for any type of mechanism, the filter having a first and second entry, which go directly into a chamber containing a filtering unit, the first entry receiving the fuel at a temperature essentially equal to that of the second entry which receives a hotter fuel which has passed through a heat exchanger. The filter prevents clogging due to ice formation on the filtering unit of the filter or at least inhibits such clogging. A fuel circuit using such a filter is also disclosed.

    摘要翻译: 用于任何类型的机构的用于飞机燃料电路或燃料电路的主过滤器,所述过滤器具有第一和第二入口,其直接进入包含过滤单元的室,所述第一入口在基本等于 接收通过热交换器的较热的燃料的第二入口。 过滤器防止由于过滤器的过滤单元上的冰形成堵塞,或者至少抑制这种堵塞。 还公开了使用这种过滤器的燃料回路。

    Self-washing device for separating and filtering solid particles from a
flow of liquid, and use of the device in a fuel injection circuit
    5.
    发明授权
    Self-washing device for separating and filtering solid particles from a flow of liquid, and use of the device in a fuel injection circuit 有权
    用于从液体流中分离和过滤固体颗粒的自清洗装置,以及在燃料喷射回路中使用该装置

    公开(公告)号:US6125826A

    公开(公告)日:2000-10-03

    申请号:US212864

    申请日:1998-12-17

    IPC分类号: B01D29/11 F02M37/04

    CPC分类号: B01D29/115

    摘要: A self-washing device for separating and filtering solid particles from a ow of liquid includes a tubular casing defining an internal chamber, a tangential liquid inlet opening into the internal chamber and arranged to create a vortex in the internal chamber which acts to centrifuge out solid particles and carry them at the vortex periphery, a tangential liquid outlet for discharge of liquid carrying the solid particles from the internal chamber, and a tubular filter disposed longitudinally within the internal chamber for taking and filtering a portion of liquid flow at a center of the vortex, the filter having a longitudinal central duct communicating with at least one longitudinal liquid outlet for the filtered liquid. The device is of particular use in a fuel injection circuit.

    摘要翻译: 用于从液体流中分离和过滤固体颗粒的自清洗装置包括限定内部腔室的管状壳体,进入内部腔室的切向液体入口,并且设置成在内部腔室中产生涡流,其用于离心固体 颗粒并将其携带在涡流周边,切向液体出口用于从内室排出携带固体颗粒的液体,以及管状过滤器,其纵向设置在内部室内,用于在一个中心处取出和过滤一部分液体流 过滤器具有与用于过滤液体的至少一个纵向液体出口连通的纵向中心管道。 该装置在燃料喷射回路中特别有用。

    Rotary valve assembly
    6.
    发明授权
    Rotary valve assembly 失效
    旋转阀总成

    公开(公告)号:US5520216A

    公开(公告)日:1996-05-28

    申请号:US383014

    申请日:1995-02-03

    摘要: A rotary valve assembly is disclosed in which a rotary valve member is located within a casing having one or more fluid inlets and a plurality of fluid outlets. The rotary valve member has a fluid conduit which extends in a generally radial direction and which communicates with the fluid inlet. Fluid orifices communicate with the fluid conduit and exit through opposite sides of the rotary valve member to thereby minimize, or eliminate altogether, axial forces acting on the rotary valve member. Fluid outlet passages communicate with the two fluid orifices during at least pan of the rotation of the rotary valve member to direct the pressurized fluid to the valve outlets. The rotary valve may include a pair of rotary valve members drivingly connected to each other such that they rotate synchronously. The connection may include gear teeth formed on the adjacent peripheries of the rotary valve members such that rotation of one of the valve members causes rotation of the other. Each valve member may have a separate fluid inlet and separate fluid outlets.

    摘要翻译: 公开了一种旋转阀组件,其中旋转阀构件位于具有一个或多个流体入口和多个流体出口的壳体内。 旋转阀构件具有在大致径向方向上延伸并与流体入口连通的流体导管。 流体孔与流体导管连通并通过旋转阀构件的相对侧离开,从而最小化或完全消除作用在旋转阀构件上的轴向力。 液体出口通道在旋转阀构件的至少一圈旋转期间与两个流体孔连通,以将加压流体引导到阀出口。 旋转阀可以包括一对旋转阀构件,它们彼此驱动地相互连接,使得它们同步旋转。 连接可以包括形成在旋转阀构件的相邻周边上的齿轮齿,使得阀构件中的一个的旋转引起另一个的旋转。 每个阀构件可以具有单独的流体入口和单独的流体出口。

    Device For Supplying Fuel To A Gas Turbine Engine With Regulated Fuel Flow Rate
    7.
    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 controlling the pressure and delivery of a fuel feed to a servovalve unit
    8.
    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。

    Fuel metering device for a turbojet engine
    10.
    发明授权
    Fuel metering device for a turbojet engine 失效
    用于涡轮喷气发动机的燃料计量装置

    公开(公告)号:US4745739A

    公开(公告)日:1988-05-24

    申请号:US819625

    申请日:1986-01-17

    IPC分类号: F02C9/32 F02C9/26 F02C9/28

    CPC分类号: F02C9/263 Y10T137/8803

    摘要: The metering device of the present invention is characterized by controlling the simultaneous relative positions of two sliding valve elements so that the degree of opening between fuel inlet and outlet orifices always corresponds to the setpoint of the fuel flow. If the position of either of the two sliding elements in the metering device of the present invention can no longer be controlled for whatever reason, such as being jammed, the other element may always be controlled to move relative to the jammed element such that the fuel flow may be controlled by the other element to correspond to that of the fuel flow setpoint. Thus, the metering device according to the present invention will continue to operate effectively even if the position of either of its slide elements can no longer be properly controlled, either because the element has jammed or because there has been a malfunction in its control system.

    摘要翻译: 本发明的计量装置的特征在于控制两个滑动阀元件的同时相对位置,使得燃料入口和出口孔之间的开度总是对应于燃料流量的设定点。 如果本发明的计量装置中的两个滑动元件中的任何一个的位置由于任何原因(例如卡住)而不能再被控制,则可以总是控制另一个元件相对于卡住的元件移动,使得燃料 流量可以由另一元件控制以对应于燃料流量设定点的流量。 因此,根据本发明的计量装置即使其任何一个滑动元件的位置也不能被适当地控制,因为元件已经卡住或者由于其控制系统中出现故障,因此将继续有效地操作。