公开(公告)号：US06971857B2

公开(公告)日：2005-12-06

申请号：US10448136

申请日：2003-05-30

申请人： Mitsuru Nagai

发明人： Mitsuru Nagai

IPC分类号： F02M59/44 ,  F04B1/04 ,  F04B9/04 ,  F04B23/10 ,  F04B23/12 ,  F02M41/00

CPC分类号： F04B23/103 ,  F04B1/0404

摘要： A fuel injection pump prevents the uninterrupted supply of fuel through an orifice to a cam chamber. An orifice inlet is formed on the same plane as a wall surface of a discharge fuel chamber. As a result, foreign substances, which are carried with the flow of the fuel to the vicinity of the orifice inlet, will fall downward in the discharge fuel chamber to a location away from the orifice inlet thereby preventing the foreign substances from residing in the vicinity of the orifice inlet, as occurs in the case of a conventional fuel injection pump. Specifically, since the foreign substances residing in the vicinity of the orifice inlet can be removed at each engine stop, the amount of foreign substances collected in the vicinity of the orifice inlet can be prevented from increasing during engine operation.

摘要翻译： 燃油喷射泵防止通过孔口到凸轮室的不间断的燃料供应。 孔口入口形成在与排放燃料室的壁面相同的平面上。 结果，由燃料流入孔口附近而携带的异物将在排放燃料室中向下落到远离孔入口的位置，从而防止异物驻留在附近 如在常规燃料喷射泵的情况下发生的。 具体地说，由于能够在每个发动机停止时除去驻留在孔口附近的异物，因此能够防止在发动机运转时在孔口附近收集的异物的量增加。