Pointer stabilizer
    1.
    发明授权
    Pointer stabilizer 失效
    指针稳定器

    公开(公告)号:US3580085A

    公开(公告)日:1971-05-25

    申请号:US3580085D

    申请日:1969-06-02

    CPC classification number: G01P1/11

    Abstract: The invention relates to a speedometer. The following specification describes a speedometer having an improved indicating mechanism. The hub of the indicating needle is machined to act as a bearing on the spindle, and the needle and spindle are interconnected by a damping member to filter out oscillations occurring in the pointer.

    Combustion control
    2.
    发明授权
    Combustion control 失效
    燃烧控制

    公开(公告)号:US3919838A

    公开(公告)日:1975-11-18

    申请号:US52045274

    申请日:1974-11-04

    CPC classification number: F02C9/38 F02C3/10 F02C9/32 F23R3/26

    Abstract: A control for a gas turbine engine combustion apparatus having structure for varying the ratio of primary (combustion) air to total air flow through the engine. It is intended for a motor vehicle turbine. The operator of the vehicle controls engine power by a foot pedal which is connected to vary the area for air flow into the primary and secondary ports of the combustion liner and thus vary the ratio of primary to total air flow. The same movement is transmitted to a metering valve to control the fuel supplied to the combustion apparatus so as to maintain a constant ratio of fuel to primary combustion air and thereby maintain a desired combustion zone temperature. The head across the metering valve is controlled by a by-pass valve which balances it against the difference between total and static air pressures measured at the engine inlet. Thus, the metering head is proportional to the square of total mass air flow. Valve means are also provided to adjust the fuel flow in response to temperature of the air entering the combustion apparatus.

    Abstract translation: 具有用于改变初级(燃烧)空气与通过发动机的总空气流量的比率的结构的燃气涡轮发动机燃烧装置的控制装置。 它适用于机动车辆涡轮机。 车辆的操作者通过脚踏板来控制发动机功率,该脚踏板被连接以改变空气流入燃烧衬套的主要和次要端口的区域,从而改变主要与总气流的比率。 相同的运动被传递到计量阀以控制供应到燃烧装置的燃料,以保持燃料与一次燃烧空气的恒定比例,从而保持期望的燃烧区温度。 计量阀上的头部由旁通阀控制,旁路阀与发动机入口处测量的总空气压力和静态空气压力之差平衡。 因此,计量头与总质量空气流量的平方成比例。 还提供阀装置以响应于进入燃烧装置的空气的温度来调节燃料流量。

    Fuel metering
    3.
    发明授权
    Fuel metering 失效
    燃油计量

    公开(公告)号:US3878676A

    公开(公告)日:1975-04-22

    申请号:US39776373

    申请日:1973-09-17

    CPC classification number: F02C9/36

    Abstract: A fuel supply system for a gas turbine engine such as a gascoupled vehicle driving engine includes a pump driven by the engine, a resistance valve between the pump outlet and the engine combustion chamber fuel nozzle, and a by-pass from the pump outlet to the pump inlet flowing through a by-pass valve and a resistance valve in series. The fuel nozzle provides a fuel metering orifice. The by-pass valve is biased to open by fuel pump discharge pressure and is biased to close by a pressure derived from the engine compressor discharge pressure. Compressor discharge pressure is fed through an orifice into a chamber to bias a diaphragm which operates to close the valve. Compensation for ambient temperature and pressure are provided by suitably controlled bleeds from this chamber. Limitation of metered fuel pressure for acceleration is accomplished by the compressor discharge pressure as so modified, and steady state fuel pressure is limited by a relief valve from the chamber the pressure setting of which is varied by manual control. The resistance valve in the engine fuel line establishes a suitable bias tending to open the by-pass valve to accommodate its characteristics to those of the engine, and a resistance valve in the by-pass line which has a higher setting enforces flow of fuel to the engine during starting.

    Abstract translation: 用于诸如气体联接车辆驱动发动机的燃气涡轮发动机的燃料供应系统包括由发动机驱动的泵,泵出口和发动机燃烧室燃料喷嘴之间的阻力阀,以及来自泵出口的旁路 到通过旁路阀和电阻阀串联的泵入口。 燃料喷嘴提供燃料计量孔。 旁通阀被燃料泵排出压力偏压打开,并通过来自发动机压缩机排气压力的压力偏压关闭。 压缩机排出压力通过孔进料到室中以偏压操作以关闭阀的隔膜。 环境温度和压力的补偿由适当控制的来自该腔室的出血提供。 加压的计量燃油压力的限制是通过如此修改的压缩机排气压力来实现的,并且稳态燃料压力受到其压力设定由手动控制而改变的腔室的安全阀的限制。 发动机燃油管路中的阻力阀建立了适合于打开旁通阀以适应其发动机特性的偏压,并且具有较高设定值的旁通管线中的阻力阀将燃料流动 发动机起动时。

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