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    • 5. 发明授权
    • Fuel supply system
    • 燃油供应系统
    • US07234293B2
    • 2007-06-26
    • US11039071
    • 2005-01-19
    • Martin Kenneth YatesPhilip Laurence Elliott
    • Martin Kenneth YatesPhilip Laurence Elliott
    • F02C7/22F02C9/26
    • F02C9/263F02C7/232F02C7/236F02C9/32F02C9/36
    • A fuel supply system for a gas turbine engine including first and second positive displacement pumps operated simultaneously to supply fuel under pressure from a low pressure source, a combining spill valve controlling the output flows from the first and second pumps to combine the outputs of the first and second pumps for supply to a metering valve of the system, or to spill some or all of the output of one or both pumps back to the low pressure supply, a pressure raising and shut off valve arrangement downstream of the metering valve for isolating the fuel system from an associated engine until the fuel pressure upstream of the pressure raising and shut off valve arrangement exceeds a predetermined pressure, and, a control system dependent upon the position of the combining spill valve for reducing said predetermined pressure at which said pressure raising and shut off valve arrangement opens.
    • 一种用于燃气涡轮发动机的燃料供应系统,其包括同时操作的压力下的低压源供应燃料的第一和第二容积式泵,组合溢流阀,其控制来自第一和第二泵的输出流,以组合第一 以及用于供应到系统的计量阀的第二泵,或者将一个或两个泵的一部分或全部输出溢出回到低压源,在计量阀下游的升压和截止阀装置,用于隔离 来自相关联的发动机的燃料系统直到压力升高和截止阀装置上游的燃料压力超过预定压力,以及依赖于组合溢流阀的位置的控制系统,用于减小所述压力升高和 关闭阀门装置打开。