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    • 5. 发明授权
    • OVERSPEED GOVERNOR CONTROL SYSTEM
    • OVER燃气涡轮机的速度控制和控制系统
    • EP0820558B1
    • 2001-07-18
    • EP96912691.1
    • 1996-04-10
    • Honeywell International Inc.
    • DUTKA, Martin, J.POELSTRA, Rick, L.WIEGAND, Timothy, F.FUTA, Paul, W., Jr.
    • F02C9/28F02C9/38
    • F02C9/28F02C9/38F05D2270/021
    • A mechanical governor for use in a fuel management system having a fuel metering loop responsive to an electronic computer for supplying fuel to a combustion chamber of a turbine. The mechanical governor includes a cylindrical spinning spool valve assembly located in a bore which is responsive to an operational force derived from the rotation of the turbine. In a first mode of operation, communication of control pressure Pc to an integrator valve assembly is inhibited by a first spring associated with the spool valve assembly while in a second mode of operation communication of an operational fluid pressure Px derived from the control pressure Pc is communicated to the integrator valve assembly after an operational force corresponding to the rotation overcomes the first spring. In the first and second modes of operation, fuel is supplied to the combustion chamber as a function of a pressure differential across the fuel metering loop. Movement of the spool valve assembly is opposed and fuel is supplied to the combustion chamber under the first and second modes of operation until an operational force overcomes a second spring and the pressure differential across the fuel metering loop is lowered to reduce the fuel supplied to the combustion chamber and correspondingly the rotation of the turbine to prevent an over speed condition.
    • 7. 发明公开
    • Gas turbine engine fuel control system, and metering valve
    • Brennstoffregelsystem eines Gasturbinenmotors und Dosierventil。
    • EP0388046A2
    • 1990-09-19
    • EP90302154.1
    • 1990-02-28
    • LUCAS INDUSTRIES PUBLIC LIMITED COMPANY
    • Smith, Trevor Stanley
    • F02C9/38F02C7/232
    • F02C7/26F02C9/263F02C9/38
    • A fuel control system for a gas turbine engine has a metering valve (49) and a shut-off valve (70) in series, and a spill valve (22) for spilling fuel from upstream of the metering valve (49) in response to an overspeed condition of the engine. The spill valve (22) and shut-­off valve (70) are responsive to respective servo pressures, and an electrically operated valve (77) can control both servo pressures in response to a demand to shut down the engine. The electrically operated valve (77) can also control a third servo pressure for setting a minimum flow limiting stop (60) in the metering valve (49) to a lower limiting level during engine starting.
    • 用于燃气涡轮发动机的燃料控制系统具有串联的计量阀(49)和截止阀(70),以及溢流阀(22),用于响应于计量阀(49)的上游溢出燃料 发动机的超速情况。 溢流阀(22)和截止阀(70)响应于相应的伺服压力,并且电动阀(77)可以响应于关闭发动机的需求来控制伺服压力。 电动阀(77)还可以控制第三伺服压力,以在发动机起动期间将计量阀(49)中的最小限流停止(60)设定到较低的限制水平。