公开(公告)号：US3930480A

公开(公告)日：1976-01-06

申请号：US466341

申请日：1974-05-02

申请人： Tadashi Yamada ,  Toshio Banba

发明人： Tadashi Yamada ,  Toshio Banba

IPC分类号： F02M59/26 ,  F02M59/48 ,  F02M39/00

CPC分类号： F02M59/265 ,  F02M59/485

摘要： A fuel injection pump for an internal combustion engine wherein a plunger is mounted in a barrel for sliding axial movement and rotation about its own axis, and the barrel is formed therein with a suction port and an outlet port. A metering groove is formed in the plunger and maintained in communication with a top of the plunger through a bore formed in the plunger, so that a desired amount of metered fuel can be delivered to the engine according to the load applied to the engine by varying the area and the time at which the metering groove is brought into communication with the outlet port, thereby varying the amount of fuel outflow. A pulsation control chamber of a greater sectional area is formed in the fuel passageway between a discharge valve of the pump and a fuel valve so as to intensify and prolong the duration of throbs of a pulsating current of fuel moved through the pulsation control chamber as it is delivered by pumping.

摘要翻译： 一种用于内燃机的燃料喷射泵，其中柱塞安装在筒体中，用于围绕其自身轴线滑动轴向运动和旋转，并且所述筒体在其中形成有吸入口和出口。 计量槽形成在柱塞中并且通过形成在柱塞中的孔保持与柱塞的顶部连通，使得期望量的计量燃料可以根据施加到发动机的负载而变化地发送到发动机 计量槽与出口连通的区域和时间，从而改变燃料流出量。 在泵的排出阀和燃料阀之间的燃料通道中形成具有较大截面面积的脉动控制室，以便加强和延长通过脉动控制室移动的燃料的脉动电流的脉冲持续时间 通过泵送。