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    • 4. 发明授权
    • Fuel control system
    • 燃油控制系统
    • US5513493A
    • 1996-05-07
    • US887373
    • 1986-07-11
    • Michael J. SevernRoy L. Taylor
    • Michael J. SevernRoy L. Taylor
    • F02C9/38F02C9/28
    • F02C9/38F05D2270/051
    • Fuel for the combustion equipment of the engine of a vertical take off aircraft is supplied via pumps 50,24 through a metering valve 22, which is under the control of a digital electronic control unit (DECU) 10. A pressure drop regulator 30 and spill valve 32 ensure there is a constant pressure drop across the metering valve 22. To provide a rapid reduction in fuel output when the aircraft pilot slams shut his control lever 16 when he touches down after a vertical landing, and therefore prevent the aircraft from bouncing, the DECU 10 detects the sudden slamming closed of the lever 16, and opens a solenoid valve 60. Fuel now bleeds along line 58, and the input 54 of the regulator 30 sees an increased pressure drop determined by a potentiometer formed by two flow restricting orifices 56,62. The regulator 30 therefore opens the spill valve 32 giving the desired rapid reduction in fuel flow through the metering valve 22.
    • 用于垂直起飞飞机的发动机的燃烧设备的燃料通过泵50,24通过在数字电子控制单元(DECU)10的控制下的计量阀22供应。压降调节器30和泄漏 阀32确保在计量阀22上存在恒定的压力降。为了在飞行员飞行员在垂直着陆之后触摸时关闭其控制杆16并且因此防止飞行器弹跳而提供燃料输出的快速减少, DECU 10检测到杆16的突然打开关闭,并打开电磁阀60.燃料现在沿着线58流出,并且调节器30的输入54看到由由两个流动限制孔形成的电位计确定的增加的压降 56,62。 因此,调节器30打开溢流阀32,从而使通过计量阀22的燃料流快速减少。