公开(公告)号：US4606317A

公开(公告)日：1986-08-19

申请号：US687891

申请日：1984-12-31

申请人： Gerhard Jauch ,  Ernst Lang ,  Ulrich Leu ,  Willi Strohl

发明人： Gerhard Jauch ,  Ernst Lang ,  Ulrich Leu ,  Willi Strohl

IPC分类号： F02M37/00 ,  F02M69/26 ,  F02M39/00

CPC分类号： F02M69/26

摘要： A fuel injection system is proposed which serves to supply fuel to an internal combustion engine. The fuel injection system includes a metering and quantity distributing valve connected with regulating valves, which can be acted upon by the fuel pressure in a differential pressure control line. Communicating with a fuel supply line are a pressure limiting valve and a switch member, the latter having a switch diaphragm which is displaceable into a return flow chamber by the fuel pressure counter to a switch spring and a closing spring. Upon this displacement, via a tappet, a spring plate resting on the switch diaphragm opens a sealing valve, which rests at the mouth of an outflow line, which via a control throttle leads to the differential pressure control line. The pressure limiting valve is located upstream of the sealing valve. The return flow chamber is arranged to communicate with the fuel container via a return flow line.

摘要翻译： 提出了一种用于向内燃机供应燃料的燃料喷射系统。 燃料喷射系统包括与调节阀连接的计量和数量分配阀，其可以通过压差控制线中的燃料压力来起作用。 与燃料供应管线通信是限压阀和开关构件，其具有开关膜片，该开关膜片通过与开关弹簧和闭合弹簧相对的燃料压力可移位到回流室中。 在这种位移时，通过挺杆，搁置在开关隔膜上的弹簧板打开密封阀，该密封阀搁置在流出管路的嘴部，该流出管路经由控制节流阀通向差压控制线。 限压阀位于密封阀的上游。 回流室被布置成经由回流管线与燃料容器连通。