专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5641274A Two stage fuel injection pump with second stage located in the first stage inlet line 失效
标题翻译：二级燃油喷射泵，第二级位于第一级入口管路
公开(公告)号：US5641274A
公开(公告)日：1997-06-24
申请号：US413438
申请日：1995-03-30
申请人： Kenichi Kubo , Tsumayoshi Motoyoshi , Jun Matsubara
发明人： Kenichi Kubo , Tsumayoshi Motoyoshi , Jun Matsubara
IPC分类号： F02M39/00 , F02M41/14 , F02M53/00 , F04B23/10 , F04B19/02
CPC分类号： F02M41/1405 , F02M39/005 , F02M41/1411 , F02M41/1427 , F02D2200/0606
摘要： A low pressure side fuel path extending from a fuel inflow port to a feed pump, and a chamber, which can communicate with an inflow/outflow port, are formed by partitioning inside a housing. A cam ring, shoes and rollers are provided in the low pressure side fuel path to induce low pressure, low temperature fuel into the area surrounding the rollers. A space that communicates with the low pressure side fuel path without constriction is formed on the upstream side on the back surfaces of the shoes. A phase of the cam ring and the control sleeve is fixed with the adapter provided on the boundary of the low pressure side fuel path and the chamber. An intake passage communicating with the intake port may be formed in the adapter to shorten the intake path. The area around the rollers, which tends to become heated in an inner-cam type fuel injection pump, is cooled efficiently, cam jump is reduced, control of advance angle is performed separately and independently of the fuel injection quantity control, and the efficiency of fuel intake is improved.
摘要翻译：通过在壳体内分隔而形成从燃料流入口向供给泵延伸的低压侧燃料路径，以及能够与流入口流通的室。在低压侧燃料路径中设置有凸轮环，鞋和辊，以将低压，低温燃料引入到辊周围的区域中。在鞋的背面的上游侧形成有与低压侧燃料路径连通而没有收缩的空间。凸轮环和控制套筒的相位与设置在低压侧燃料路径和室的边界上的适配器固定。可以在适配器中形成与进气口连通的进气通道，以缩短进气通道。在内凸轮式燃料喷射泵中易于加热的辊周围的区域被有效地冷却，凸轮跳转减小，提前角的控制独立于燃料喷射量控制执行，并且效率燃油消耗量得到改善。

IPRDB

热门服务

关于我们

友情链接

联系方式