公开(公告)号：US06238190B1

公开(公告)日：2001-05-29

申请号：US09272021

申请日：1999-03-18

申请人： Philip James Czarnecki ,  Daniel Brian Ogren ,  Scott Weliver

发明人： Philip James Czarnecki ,  Daniel Brian Ogren ,  Scott Weliver

IPC分类号： F04B4900

CPC分类号： F02M59/366 ,  F02M59/462 ,  F02M59/466 ,  F02M2200/04

摘要： A fuel injector pump for an internal combustion engine including a camshaft-driven fuel delivery plunger, a solenoid valve for controlling transfer of liquid fuel from a fuel plunger cavity to a fuel injector nozzle, and a snubber valve located between the fuel injector nozzle and the plunger whereby unrestricted fuel flow is distributed to the injector nozzle and reverse flow from the nozzle to the plunger chamber is restricted so that cavitation in the fuel delivery passage extending to the nozzle will be avoided and undesirable pressure peaks at the fuel pump are avoided.

摘要翻译： 一种用于内燃机的燃料喷射泵，其包括凸轮轴驱动的燃料输送柱塞，用于控制液体燃料从燃料柱塞腔向燃料喷射器喷嘴的转移的电磁阀，以及位于燃料喷射器喷嘴和燃料喷射器喷嘴之间的缓冲阀 其中不受限制的燃料流分配到喷射器喷嘴并且从喷嘴到柱塞室的反向流动受到限制，使得延伸到喷嘴的燃料输送通道中的空化将被避免，并且避免了燃料泵处的不期望的压力峰值。