公开(公告)号：US20150316012A1

公开(公告)日：2015-11-05

申请号：US14649578

申请日：2013-11-14

申请人： DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.A.R. L.

发明人： THOMAS MAGILL

IPC分类号： F02M59/02 ,  F04B53/22 ,  F04B53/16 ,  F04B19/22 ,  F04B53/12

CPC分类号： F02M59/027 ,  F02M59/361 ,  F02M59/367 ,  F02M2200/20 ,  F04B1/0452 ,  F04B7/04 ,  F04B19/22 ,  F04B53/10 ,  F04B53/125 ,  F04B53/14 ,  F04B53/16 ,  F04B53/22

摘要： A pump unit for a fuel injection system is disclosed. The pump unit has a low pressure fuel supply line and a high pressure fuel outlet. A pumping chamber having a plunger is operable to perform a pumping cycle comprising a pumping stroke and a filling stroke. The pump unit also includes an inlet valve having an inlet valve member movable between an open position for permitting the supply of fuel to the pumping chamber from the low pressure fuel supply line and a closed position for inhibiting the supply of fuel from the pumping chamber to the low pressure supply line. An outlet valve is provided in the high pressure fuel outlet. The pump unit also includes means for coupling the plunger to the inlet valve member. The present application also relates to a method of operating a pump unit; and a valve for a fuel injection system.

摘要翻译： 公开了一种用于燃料喷射系统的泵单元。 泵单元具有低压燃料供应管线和高压燃料出口。 具有柱塞的泵送室可操作以执行包括泵送冲程和填充冲程的泵送循环。 泵单元还包括入口阀，入口阀构件可在允许从低压燃料供应管线向泵送室供应燃料的打开位置和用于禁止从泵送室供应燃料的关闭位置之间移动的入口阀构件 低压供应线。 出口阀设置在高压燃料出口中。 泵单元还包括用于将柱塞连接到入口阀构件的装置。 本申请还涉及一种操作泵单元的方法; 以及用于燃料喷射系统的阀。