Frictionless plate valve
    11.
    发明授权
    Frictionless plate valve 失效
    无摩擦板阀

    公开(公告)号:US5069251A

    公开(公告)日:1991-12-03

    申请号:US604385

    申请日:1990-10-25

    IPC分类号: F15B13/04

    CPC分类号: F15B13/04 Y10T137/8667

    摘要: A plate valve comprises a first and third plate which enclose a second plate, the second plate including a metering element having a lesser thickness than the second plate such that the metering element does not contact either of the first or third plates. The valve element is disposed within the second plate such that the valve element stokes without contacting the first and third plate regardless of the fluid pressure of the fluid being metered. The valve element is suspended by a pair of arms arranged perpendicularly to the flow of the fluid being supplied to the valve to be metered thereby.

    摘要翻译: 板阀包括封闭第二板的第一和第三板,第二板包括具有比第二板更小的厚度的计量元件,使得计量元件不接触第一或第三板之一。 阀元件设置在第二板内,使得阀元件在不接触第一和第三板的情况下进行冲击,而不管要计量的流体的流体压力如何。 阀元件由垂直于被供给到要计量的阀的流体流垂直布置的一对臂悬挂。

    Multi-function fuel metering valve
    12.
    发明授权
    Multi-function fuel metering valve 失效
    多功能燃油计量阀

    公开(公告)号:US4751942A

    公开(公告)日:1988-06-21

    申请号:US42083

    申请日:1987-04-24

    摘要: A hybrid fuel metering system incorporating a multi-function control valve (18) is shown. The valve has a sleeve (96), a piston (98) mounted for translational movement within the sleeve and a spool (100) mounted for translational movement in the piston. The piston has three positions for cooperating with the sleeve; a variable first position for metering fuel to an engine (12), a second position for directing fuel to a metering valve (20) and a third position for shutting off flow to the metering valve and to the engine to correct engine overspeed. The spool has two positions a first position to shut off flow to the engine and to the metering valve to shut off the engine and a variable second position to position the piston to meter flow to the engine.

    Fuel pumping system for a gas turbine engine
    13.
    发明授权
    Fuel pumping system for a gas turbine engine 有权
    燃气轮机的燃油泵系统

    公开(公告)号:US08793971B2

    公开(公告)日:2014-08-05

    申请号:US12786844

    申请日:2010-05-25

    IPC分类号: F02C7/236 F02C7/232 F02C7/22

    摘要: A fuel supply system for a gas turbine engine has a first pump for delivering fuel to a first use on a gas turbine engine, and a second pump for delivering fuel to a second use on the gas turbine engine. A valve allows flow from the first pump to be delivered to the first use, but also routes some flow from the first pump to supplement fuel flow from the second pump until a pressure downstream of the second pump increases. The valve then allows flow from the second pump to flow to the first use to supplement the flow from the first pump.

    摘要翻译: 用于燃气涡轮发动机的燃料供应系统具有用于将燃料输送到燃气涡轮发动机上的第一次使用的第一泵和用于将燃料输送到燃气涡轮发动机上的第二次使用的第二泵。 阀允许来自第一泵的流量被输送到第一次使用,而且还将来自第一泵的一些流动路线补充来自第二泵的燃料流,直到第二泵下游的压力增加。 然后,阀允许来自第二泵的流动流动到第一次使用以补充来自第一泵的流量。

    COMPOSITE AEROSPACE STRUCTURE WITH INTEGRATED CONVEYANCE ELEMENT
    14.
    发明申请
    COMPOSITE AEROSPACE STRUCTURE WITH INTEGRATED CONVEYANCE ELEMENT 审中-公开
    具有集成输送元件的复合气溶胶结构

    公开(公告)号:US20130075539A1

    公开(公告)日:2013-03-28

    申请号:US13245153

    申请日:2011-09-26

    摘要: A composite structure for aerospace applications includes a structural member having multiple composite layers providing a longitudinally extending cavity. A conveyance element is arranged between and integral with the layers. In one example, the structural member provides a gas turbine engine duct or an airframe component. A composite structural assembly is manufactured by providing a first composite layer on a form that corresponds to a cavity. A second form, which may be a conveyance element in one example, is positioned along the first layer. A second composite layer is laid onto the second form and the first composite layer to provide a composite structural member with an integrated conveyance element.

    摘要翻译: 用于航空航天应用的复合结构包括具有提供纵向延伸空腔的多个复合层的结构构件。 传送元件布置在层之间并与层成一体。 在一个示例中,结构构件提供燃气涡轮发动机管道或机身部件。 通过在对应于空腔的形式上提供第一复合层来制造复合结构组件。 在一个示例中可以是传送元件的第二形式沿着第一层定位。 将第二复合层铺设在第二形式和第一复合层上,以提供具有集成输送元件的复合结构构件。

    Fluid flow system for a gas turbine engine
    15.
    发明授权
    Fluid flow system for a gas turbine engine 有权
    用于燃气涡轮发动机的流体流动系统

    公开(公告)号:US06651441B2

    公开(公告)日:2003-11-25

    申请号:US10054480

    申请日:2002-01-22

    IPC分类号: F02C100

    摘要: A fluid flow system for a gas turbine engine provides combustion fuel to a main pump and an actuator pump significantly reducing heat generation at low flow demand, while regulating actuator flow temperature at high flow demand. Fuel flow from the actuator pump in excess of the actuators needs is directed through an actuator minimum pressure valve and into a thermal bypass valve (TBV.) Depending upon the temperature of the fuel, the TBV determines the path of the excess actuator pump fluid flow. The TBV divides the fuel flow between being recirculated to the actuator pump inlet and the main pump output flow path to the engine fuel input conduit. The engine actuators are thereby assured of receiving flow which preclude freezing of water entrained in the fuel. When there is minimal concern with the possibility of freezing water entrained in the fuel, the TBV passes a greater percentage of fuel through to join together in the engine fuel input conduit.

    摘要翻译: 用于燃气涡轮发动机的流体流动系统向主泵和致动器泵提供燃烧燃料,其在低流量需求下显着减少发热,同时在高流量需求下调节致动器流量温度。 来自致动器泵的超过执行器需求的燃料流被引导通过致动器最小压力阀并进入热旁通阀(TBV)。根据燃料的温度,TBV确定过量致动器泵流体流动的路径 。 TBV将燃料流在再循环到致动器泵入口和主泵输出流路之间分配到发动机燃料输入管道。 因此,发动机致动器被确保接收流动,排除了夹带在燃料中的水的冻结。 当最少关注冻结在燃料中的水的可能性时,TBV通过更多百分比的燃料通过,以在发动机燃料输入管道中连接在一起。

    Viscosity regulating valve
    16.
    发明授权

    公开(公告)号:US06583525B2

    公开(公告)日:2003-06-24

    申请号:US09875559

    申请日:2001-06-06

    IPC分类号: H02K900

    摘要: The subject invention is a valve for regulating the viscosity of fluid utilized by an integrated drive generator (IDG). The valve includes a housing defining a bore having a first inlet supplying “cold” hydraulic fluid at a first viscosity and a second inlet supplying “hot” hydraulic fluid at a second viscosity. A spool valve disposed within the bore has at least one land to proportionally control the flow of hydraulic fluid through the inlets. Hydraulic fluid from the first and second inlets mixes within the valve and exits the valve through an outlet at an optimum viscosity for the operation of the IDG. A flow restrictor creates a pressure force on the spool valve that is proportional to the viscosity of the hydraulic fluid flowing to the IDG. The pressure force acts to move the spool valve such that the spool valve partially blocks the flow of hydraulic fluid through the first and second inlets, thereby controlling the proportion of “cold” and “hot” fluid to maintain the viscosity of the hydraulic fluid flowing to the IDG within an optimum range.

    Start, shutoff and overspeed system for gas turbine engine
    17.
    发明授权
    Start, shutoff and overspeed system for gas turbine engine 失效
    燃气轮机的启动,关闭和超速系统

    公开(公告)号:US5927064A

    公开(公告)日:1999-07-27

    申请号:US996600

    申请日:1997-12-23

    摘要: A start, shutoff and overspeed system includes a shutoff valve which permits the flow of fuel to an engine when the pressure of the main flow of fuel received from the fuel pump at first end of the shutoff valve exceeds a bias pressure at a second end of the shutoff valve. The bias pressure at the second end of the shutoff valve is controlled by an overspeed governor valve operating in conjunction with a start solenoid valve and shutoff solenoid valve. The overspeed governor positions a spool valve in response to engine speed. During engine start the spool valve sets the bias pressure to a first pressure which closes the shutoff valve, permitting fuel flow to the engine. As speed increases the spool must transition to a second position to maintain the shutoff valve in a closed position. If the spool fails to transition, the start solenoid will set the bias pressure such that the shutoff valve will prevent engine start. The overspeed governor will transition to a third position, for an overspeed condition, which controls the bias pressure such that the engine will operate at a reduced speed. The shutoff solenoid operates to shut the engine down regardless of overspeed governor or start solenoid position.

    摘要翻译: 起动,关闭和超速系统包括截止阀,当截流阀的第一端从燃料泵接收到的主要燃料流的压力超过第二端的偏压时,允许燃料流向发动机 截流阀。 截止阀第二端的偏压由与启动电磁阀和截止电磁阀一起操作的超速调速阀控制。 超速调速器根据发动机转速定位滑阀。 在发动机启动期间,滑阀将偏压压力设置为关闭截止阀的第一压力,允许燃油流向发动机。 随着速度的增加,阀芯必须转移到第二位置,以将截止阀保持在关闭位置。 如果阀芯无法转换,则起动电磁阀将设置偏压,使截流阀阻止发动机起动。 超速调速器将转换到第三个位置,用于超速状态,其控制偏压,使得发动机将以降低的速度运行。 无论超速调速器或起动电磁阀位置如何,关闭电磁阀都可以关闭发动机。

    Combined pressure regulating and fuel flow system
    18.
    发明授权
    Combined pressure regulating and fuel flow system 失效
    组合调压和燃油系统

    公开(公告)号:US5896737A

    公开(公告)日:1999-04-27

    申请号:US876900

    申请日:1997-06-16

    申请人: Gerald P. Dyer

    发明人: Gerald P. Dyer

    IPC分类号: F02C7/22 F02C9/26

    CPC分类号: F02C9/263 F02C7/22

    摘要: A fuel delivery system for providing a desired fuel flow to an engine includes a pump means for providing fuel to a metering valve which in turn regulates the flow of fuel to provide a desired fuel flow to the engine by varying the area of the metering window. The pressure differential across the metering valve is maintained at a desired set point in order to precisely control desired fuel flow by varying the area of the metering window. The pressure differential is sensed by a pressure regulating motive flow control valve (PRMFV). The PRMFV is positioned in response to the pressure differential to bypass fuel away from the metering valve to control the differential pressure to the desired set point. The PRMFV first bypasses fuel to an ejector pump and as the amount of excess flow to the metering valve increases the PRMFV bypasses fuel back to the inlet of the pump means.

    摘要翻译: 用于向发动机提供期望的燃料流的燃料输送系统包括用于向计量阀提供燃料的泵装置,该计量阀又通过改变计量窗口的面积来调节燃料的流量以向发动机提供期望的燃料流。 计量阀两端的压差保持在所需的设定点,以便通过改变计量窗口的面积精确控制所需的燃料流量。 压力差由压力调节动力流量控制阀(PRMFV)感测。 PRMFV响应于压差而定位,以将燃料从计量阀旁边排除以将压差控制到期望的设定点。 PRMFV首先将燃料旁路到喷射泵,并且随着到计量阀的过量流量的增加,PRMFV将燃料旁路回到泵装置的入口。

    Fuel control utilizing a multifunction valve
    19.
    发明授权
    Fuel control utilizing a multifunction valve 失效
    燃油控制利用多功能阀

    公开(公告)号:US4971005A

    公开(公告)日:1990-11-20

    申请号:US386315

    申请日:1989-07-28

    摘要: A fuel control is provided having a metering means for metering a weight flow of fuel, a control for controlling the metering means, a valve for determining a change in fluid pressure of the weight flow of fuel downstream of the metering means, the valve having; a pressure reaction surface disposed in the weight flow downstream of the metering means, the surface controlling an area of a window passing the weight flow of fuel therethrough, a spring attaching to the pressure reaction surface for balancing the change in fluid pressure of the weight flow of fuel against the pressure reaction surface, and a position sensor for continuously determining a position of the pressure reaction surface and continuously sending a signal of the position to the control means, wherein the control means determines the weight flow of fuel through the valve means according to the equation: ##EQU1## whereby K is a constant, F(X) is equal to an area of the window as a function of X, X is equal to a position of the reaction surface which controls the area of the window, Fo is a preload force of the spring, Ks is equal to a spring rate of the spring, and Av equals the area of the reaction surface.

    Metering valve
    20.
    发明授权
    Metering valve 失效
    计量阀

    公开(公告)号:US4637420A

    公开(公告)日:1987-01-20

    申请号:US809367

    申请日:1985-12-16

    申请人: Gerald P. Dyer

    发明人: Gerald P. Dyer

    摘要: A rotary metering valve (10) includes a pair of windows (145, 200) in mutual registry with one another, the windows defining a flow passage through the valve. The geometries of windows are such that closing the valve sweeps contaminants trapped therein, inwardly, thereby enhancing the effectiveness of the output torque of the valve's actuator (75) in breaking apart the contaminants for subsequent removal by flow through the valve.

    摘要翻译: 旋转计量阀(10)包括彼此相互对准的一对窗口(145,200),窗口限定通过该阀的流动通道。 窗口的几何形状使得关闭阀清除其中向内捕获的污染物,从而增强阀的致动器(75)的输出扭矩的有效性,以分离污染物以便随后通过流过阀门而被去除。