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    Diesel fuel distributor type injection pump
    2.
    发明授权
    Diesel fuel distributor type injection pump 失效
    柴油燃油分配器型号注射泵

    公开(公告)号：US4412519A

    公开(公告)日：1983-11-01

    申请号：US417385

    申请日：1982-09-13

    申请人： Martin M. Hoch ,  Donald Stoltman

    发明人： Martin M. Hoch ,  Donald Stoltman

    IPC分类号： F02B3/06 ,  F02M41/10 ,  F02M41/12 ,  F02M59/36 ,  F02M63/00 ,  F02M41/00

    CPC分类号： F02M63/0001 ,  F02M41/10 ,  F02M41/122 ,  F02M59/366 ,  F02B3/06

    摘要： The reciprocating plunger reciprocable in the pump cylinder of a distributor type diesel fuel injection pump is helically splined to an index ratchet gear that is also operatively associated with a pawl detent whereby the index ratchet gear is rotatable in only one direction. The plunger has a discharge slot on its outer peripheral surface which registers with one of the plural discharge ports opening from the pump cylinder and the plunger controls the covering and uncovering of a fuel inlet port to the pump cylinder. Upon a pump stroke of the plunger, the index ratchet gear is rotated so that the next adjacent tooth is brought into alignment with the pawl detent to then prevent its rotation in the opposite direction during the suction stroke of the plunger.With the index ratchet gear thus fixed, the plunger is thus rotated on the suction stroke so as to align the discharge slot with the next adjacent discharge port. A normally open solenoid valve controls spill flow from the pump cylinder during a pump stroke of the plunger so as to control the start and end of fuel injection.

    摘要翻译： 在分配器型柴油喷射泵的泵筒中往复运动的往复式柱塞螺旋地花键连接到索引式棘轮，该索引棘轮还可与棘爪棘爪操作地相关联，从而索引式棘轮只能沿一个方向旋转。 柱塞在其外周表面上具有排放槽，该排放槽与从泵缸开口的多个排出口中的一个排放，并且柱塞控制燃料入口到泵缸的覆盖和露出。 在柱塞的泵冲程时，索引式棘轮旋转，使得下一个相邻的齿与棘爪定位成对准，从而在柱塞的吸入行程期间阻止其沿相反方向旋转。 因此，如上所述固定索引棘轮，则柱塞在吸入行程上转动，以将排放槽与下一个相邻排出口对准。 常开电磁阀在柱塞的泵冲程期间控制来自泵缸的溢流，以控制燃油喷射的开始和结束。