ACTUATOR AND VALVE ASSEMBLY FOR A HYDRAULICALLY-ACTUATED ELECTRONICALLY-CONTROLLED UNIT INJECTOR
    1.
    发明申请
    ACTUATOR AND VALVE ASSEMBLY FOR A HYDRAULICALLY-ACTUATED ELECTRONICALLY-CONTROLLED UNIT INJECTOR 审中-公开
    液压驱动电子控制单元注射器的执行器和阀组件

    公开(公告)号:WO1993007379A1

    公开(公告)日:1993-04-15

    申请号:PCT/US1991009680

    申请日:1991-12-23

    Abstract: An actuator and valve assembly (28) for a hydraulically-actuated electronically-controlled unit injector (18) is disclosed which comprises an electrically-energizable actuator (36) including a movable member (42) and a poppet valve (38) connected to the movable member (42). The poppet valve (38) has a first seat (146) and a second seat (149) and is movable along an axis (26) between first, second and third positions. The assembly (28) further comprises a device (78) for biasing the poppet valve (38) towards its first position and a device (76, 80) for accommodating misalignment of the first and second seats (146, 149) relative to the axis (26). The poppet valve (38) is advantageous because it has high fluid flow control capability in a one-piece single-stage configuration.

    Abstract translation: 公开了一种用于液压致动的电子控制单元喷射器(18)的致动器和阀组件(28),其包括可电动致动器(36),其包括可移动构件(42)和提升阀(38) 活动构件(42)。 提升阀(38)具有第一座(146)和第二座(149),并且可沿第一,第二和第三位置之间的轴线(26)移动。 组件(28)还包括用于将提升阀(38)朝向其第一位置偏压的装置(78)和用于容纳第一和第二座(146,149)相对于轴线的不对准的装置(76,80) (26)。 提升阀(38)是有利的,因为它具有一体式单级结构中的高流体流动控制能力。

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