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    Pump assembly
    1.
    发明公开
    Pump assembly 有权
    泵组件

    公开(公告)号：EP2299114A1

    公开(公告)日：2011-03-23

    申请号：EP09169972.8

    申请日：2009-09-10

    Applicant: Delphi Technologies Holding S.à.r.l.

    Inventor： Djema, Aissa ,  Garland, Paul

    IPC: F04B1/04 ,  F02M59/06 ,  F02M59/10 ,  F02M63/02 ,  F04B9/04 ,  F02M59/46

    CPC classification number: F02M59/06 ,  F02M59/102 ,  F02M59/46 ,  F02M59/462 ,  F02M63/027 ,  F04B9/042 ,  F04B9/047

    Abstract: A pump assembly for an internal combustion engine comprising a pump housing (40), at least one pumping arrangement having a pumping plunger (56, 58) for pressurising fluid within a pump chamber; a drive shaft (46) carrying a cam (48) and a cam rider (50) which cooperates with the pumping arrangement to drive plunger movement along a plunger axis; and a plate (74; 174; 274; 374) coupled, on one side (74b), to the cam rider (50) and, on its other side (74a), to the housing (40) by coupling means (84, 86, 80, 82; 84, 180; 280, 286; 380, 480).The coupling means is arranged to constrain movement of the plate (74; 174; 274; 374) relative to the housing (40) in a first linear direction and to constrain movement of the cam rider (50) relative to the plate in a second linear direction, and to prevent angular movement of the cam rider (50) about its axis. Wear of the plunger, or of any intermediate component between the cam rider and the plunger, can be reduced as the cam rider is unable to tilt about its axis.

    Abstract translation: 1。一种用于内燃机的泵组件，包括泵壳体（40），至少一个泵送装置，所述泵送装置具有用于对泵腔内的流体加压的泵送柱塞（56,58） 承载凸轮（48）的驱动轴（46）以及与泵送装置配合以驱动柱塞沿柱塞轴线运动的凸轮滑行器（50）;其中， 和一个在一侧（74b）上与凸轮滑块（50）连接并且在其另一侧（74a）通过连接装置（84）与壳体（40）连接的板（74; 174; 274; 374） 所述联接装置被布置成限制所述板（74; 174; 274; 374）相对于所述壳体（40）的运动为第一线性 并且限制凸轮滑块（50）相对于滑板在第二直线方向上的运动，并且防止凸轮滑块（50）绕其轴线的角运动。 由于凸轮骑手不能绕其轴线倾斜，所以可以减少柱塞或凸轮骑手与柱塞之间的任何中间部件的磨损。

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