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1. 发明授权

US5642715A Distributor type fuel injection pump 失效
标题翻译：分配器型燃油喷射泵
公开(公告)号：US5642715A
公开(公告)日：1997-07-01
申请号：US623955
申请日：1996-03-29
申请人： Toru Yamakawa , Ken'ichi Kubo , Hiroshi Ishiwata , Jun Matsubara
发明人： Toru Yamakawa , Ken'ichi Kubo , Hiroshi Ishiwata , Jun Matsubara
IPC分类号： F02M41/12 , F02M41/14 , F02M45/06 , F02M41/00
CPC分类号： F02M41/1411 , F02M45/06
摘要： Inflow/outflow ports are provided in either one of a distribution member for distributing compressed fuel or a control sleeve which is externally fitted around the distribution member. Each of the ports includes a slit extending therefrom. At the other one of the distribution member and the control sleeve, an intake-cutoff hole that communicates sequentially with the inflow/outflow ports and a pilot port which communicates with the slits during part of the force feed period are provided. Since the fuel flows out through the slits during part of the force feed period, pilot injection can be more easily achieved prior to the main injection during low speed rotation and fuel is less likely to be diverted through the slits due to the constricting effect during high speed rotation so that only the main injection is performed. As a result, a distributor type fuel injection pump which achieves pilot injection in the idling range and in the no-load range, and cancels the pilot injection in the full-load range is provided.
摘要翻译：在分配压缩燃料的分配构件或分配构件外部安装的控制套筒中的任一个中设置有流入/流出端口。每个端口包括从其延伸的狭缝。在分配构件和控制套筒的另一个处，设置有与流入口和流出口顺序连通的进气切断孔，以及在部分加力期间与狭缝连通的先导口。由于在部分力供给期间燃料通过狭缝流出，因此在低速旋转期间的主喷射之前可以更容易地实现先导喷射，并且由于高压期间的收缩效应，燃料不太可能转移通过狭缝速度旋转，从而仅进行主喷射。结果，提供一种分配式燃料喷射泵，其在怠速范围和空载范围内实现先导喷射，并且在满载范围内抵消先导喷射。

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