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    Accumulator-type fuel injection system
    3.
    发明公开
    Accumulator-type fuel injection system 失效
    蓄能式燃油喷射系统

    公开(公告)号：EP0740067A2

    公开(公告)日：1996-10-30

    申请号：EP96106453.2

    申请日：1996-04-24

    申请人： ISUZU MOTORS LIMITED

    发明人： Takahasi, Susumu, c/o Isuzu Motors Ltd. ,  Nishimura, Terukazu, c/o Isuzu Motors Ltd.

    IPC分类号： F02M47/02 ,  F02M45/00

    CPC分类号： F02M45/00 ,  F02D41/3827 ,  F02D41/3836 ,  F02D2041/3881 ,  F02M45/12 ,  F02M47/027 ,  F02M47/043 ,  F02M59/366 ,  F02M63/0225

    摘要： A fuel injection system includes a fuel injector (6) having a body, a needle valve (5) movably provided in the body and a fuel accumulator having two chambers (3, 4) for storing a fuel at high and low pressures. An injection chamber (19) is formed in the injector lower body and a control chamber (22) is formed in the injector upper body. An injection passage (17) connects the high pressure chamber (3) with the injection chamber (18) and a control passage (21) connects the low pressure chamber (4) with the control chamber (22). The needle valve (5) is lifted upon leaking of the fuel to the accumulator from the control chamber (22) and the fuel is injected from the injection chamber (19) upon lifting of the needle valve (5). The fuel is recycled to the fuel tank from the control chamber (22).

    摘要翻译： 燃料喷射系统包括具有主体的燃料喷射器（6），可移动地设置在主体中的针阀（5）和具有用于在高压和低压下储存燃料的两个腔室（3,4）的燃料储存器。 注射室（19）形成在注射器下体中，并且控制室（22）形成在注射器上体中。 注射通道17连接高压室3和注射室18，控制通道21连接低压室4和控制室22。 当燃料从控制室（22）泄漏到蓄能器时，针阀（5）被提升，并且在提升针阀（5）时燃料从喷射室（19）喷射。 燃料从控制室（22）循环到燃料箱。