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    • 9. 发明授权
    • Fuel injection pump for internal combustion engines
    • 内燃机燃油喷射泵
    • US4125104A
    • 1978-11-14
    • US828126
    • 1977-08-26
    • Gunter Stein
    • Gunter Stein
    • F02D1/02F02M41/14F02D1/04
    • F02M41/1411
    • A fuel injection pump is driven by the engine via a drive shaft that also rotates a cam ring. The cam ring reciprocates radial pistons which deliver fuel under high pressure to fuel lines located around an axially sliding distribution member. The amount of fuel delivered is determined in part by the timing of the opening of a pressure relief channel which is opened by a sliding annular ring surrounding the distribution member. The position of this ring and hence the fuel quantity delivered is adjusted by the equilibrium between spring forces and fluid pressure from a regulating valve. A separate pressure control valve adjusts the pressure gradient across an arbitrarily settable throttle which also affects the regulating pressure. Separate mechanisms adjust an engine starting excess quantity and a fuel bypass which is thermostatically controlled to maintain the pump operating temperature within prescribed limits.
    • 燃料喷射泵由发动机通过也使凸轮环旋转的驱动轴驱动。 凸轮环往复运动,其将在高压下输送燃料的径向活塞往位于位于轴向滑动分配构件周围的燃料管线。 输送的燃料量部分地由围绕分配构件的滑动环形环打开的压力释放通道的打开时间确定。 通过弹簧力与调节阀的流体压力之间的平衡来调节该环的位置,从而调节输送的燃料量。 单独的压力控制阀调节横过可任意设定的节气门的压力梯度,这也影响调节压力。 独立的机构调节发动机启动过量和燃油旁路,其被恒温控制以将泵的运行温度保持在规定的限度内。