公开(公告)号：US20040101427A1

公开(公告)日：2004-05-27

申请号：US10306585

申请日：2002-11-27

Applicant: Visteon Global Technologies Inc.

Inventor： DeQuan Yu ,  Harold L. Castle ,  Stephen T. Kempfer

IPC: F04C002/00 ,  F04C018/00 ,  F01C001/10

CPC classification number: F04C15/06 ,  F04C2/102 ,  F04C15/0049

Abstract: The present invention involves a gear assembly of a fuel pump for improved supply of fuel to an automotive engine from a fuel tank. The assembly includes an inner gear and an outer gear matingly cooperating with the inner gear for rotation about an axis. The assembly further includes a pump cover including a cover surface adjacent the inner and outer gears and a pump body including a body surface adjacent the inner and outer gears opposite the pump cover. The cover surface has a primary inlet porting and a secondary outlet porting formed thereon and separated between seal areas. The body surface of the pump body includes a primary outlet porting and a secondary inlet porting separated between seal areas. In use, the inlet portings and the outlet portings of the pump body and the pump cover cooperate together, respectively, such that fuel entering through the inlet portings pass therethrough at a rate at which the gear assembly moves. Also, the outlet portings of the pump body and the pump cover cooperate together to allow fuel to pass therethrough at the rate at which the gear assembly moves.

Abstract translation: 本发明涉及燃料泵的齿轮组件，用于从燃料箱改进向汽车发动机的燃料供应。 组件包括内齿轮和外齿轮，该齿轮与内齿轮配合地配合以围绕轴线旋转。 组件还包括泵盖，其包括邻近内齿轮和外齿轮的盖表面和泵体，泵主体包括邻近与泵盖相对的内齿轮和外齿轮的主体表面。 盖表面具有形成在其上并在密封区域之间分离的主入口端口和次级出口端口。 泵体的主体表面包括主要出口端口和在密封区域之间分开的次级入口端口。 在使用中，泵主体和泵盖的入口端口和出口分别协同工作，使得通过入口端口进入的燃料以齿轮组件移动的速率通过。 此外，泵体和泵盖的出口端口协同工作，以使齿轮组件移动的速度允许燃料通过。