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    • 74. 发明公开
    • High pressure fuel pump delivery control by piston deactivation
    • Brennstoffhochdruckpumpenregelung durch Deaktivierung von Kolben
    • EP1101940A2
    • 2001-05-23
    • EP00204011.1
    • 2000-11-15
    • Siemens Automotive Corporation
    • Maass, Martin
    • F04B1/04F04B49/24F02M63/02
    • F04B49/246F04B1/0435
    • A high pressure piston pump (16,40) includes a housing having a low pressure fuel inlet (44) and a high pressure fuel outlet; at least two pistons (48) disposed in the housing; a driveshaft (50) for supplying power to drive the at least two pistons; and a bypass valve (52) fluidly connected to at least one of the at least two pistons to deactivate the at least one piston. A method of varying the flow output of a high pressure piston pump having at least two pistons includes deactivating at least one of the two pistons by directing fluid displaced by the at least one piston to a bypass valve.
    • 高压活塞泵(16,40)包括具有低压燃料入口(44)和高压燃料出口的壳体; 设置在所述壳体中的至少两个活塞(48) 驱动轴(50),用于供应动力以驱动所述至少两个活塞; 以及与所述至少两个活塞中的至少一个活塞流体连接以使所述至少一个活塞停用的旁通阀(52)。 改变具有至少两个活塞的高压活塞泵的流量输出的方法包括通过将由至少一个活塞移位的流体引导到旁通阀来停用两个活塞中的至少一个活塞。