公开(公告)号：US4207033A

公开(公告)日：1980-06-10

申请号：US748061

申请日：1976-12-06

申请人： Gilbert H. Drutchas ,  Cass, Richard ,  David J. Suttkus

发明人： Gilbert H. Drutchas ,  Cass, Richard ,  David J. Suttkus

IPC分类号： F02M69/02 ,  F04C11/00 ,  F04C15/00 ,  F04B3/00 ,  F04B17/00

CPC分类号： F02M69/02 ,  F04C11/008 ,  F04C15/00 ,  F04C15/0042

摘要： An improved pump and motor assembly is utilized to regulate a flow of fuel to an internal combustion engine. All of the fluid connections to the pump are connected with one end of the assembly. The pump and motor are both enclosed within a one-piece casing having a tubular side wall which is integrally formed with an end wall. The end section to which all of the fluid connections for the pump are made, is connected across the open end of the tubular side wall. To provide for the removal of vapor bubbles from the fuel, fuel supplied under pressure from the tank flows through an inlet cavity which circumscribes the pump and has an axial extent which is equal to the length of the pump. In addition, a screen at the inlet of the pump itself blocks the flow of vapor bubbles from the inlet cavity to the pump. The forces applied against opposite sides of the moving components of the pump by the inlet fluid are substantially balanced. Fluid pressure pulses in fuel discharged from the pump are dampened in an outlet cavity by a seal member which sealingly engages an outer cheek plate of the pump to separate the inlet and outlet cavities. A single spring element is utilized to perform the dual functions of pressing the seal member into engagement with the outer cheek plate of the pump and to press the outer cheek plate and cam ring against the inner cheek plate.

摘要翻译： 利用改进的泵和马达组件来调节内燃机的燃料流。 与泵的所有流体连接都与组件的一端连接。 泵和马达都被封闭在具有与端壁一体形成的管状侧壁的一体式壳体内。 制造泵的所有流体连接的端部横跨管状侧壁的开口端连接。 为了提供从燃料中除去蒸汽气泡，在压力下从罐中供应的燃料流过包围泵的入口腔，其轴向长度等于泵的长度。 此外，泵入口处的屏幕本身阻挡从入口腔到泵的蒸汽气泡的流动。 通过入口流体施加到泵的移动部件的相对侧的力基本平衡。 从泵排出的燃料中的流体压力脉冲通过密封构件在出口空腔中被减弱，所述密封构件密封地接合泵的外颊板以分离入口和出口空腔。 使用单个弹簧元件来执行将密封构件按压与泵的外颊板接合并将外颊板和凸轮环压靠在内颊板上的双重功能。