公开(公告)号：US11008987B2

公开(公告)日：2021-05-18

申请号：US14190629

申请日：2014-02-26

Applicant: WALBRO ENGINE MANAGEMENT, L.L.C.

Inventor： Kenneth J. Cotton ,  Elton J. Fisch ,  David D. Hacker ,  Jeffrey D. Hanby ,  Kevin L. Israelson ,  Roger N. Smith

IPC: F02M37/20 ,  F02M37/10 ,  F02M37/00

Abstract: A fuel pump for a fuel system includes a nozzle, a venturi, a pump inlet and a flow controller. The nozzle has an orifice through which fuel is ejected and the venturi is downstream of the nozzle and has an inlet through which fuel discharged from the orifice flows, a passage downstream of the venturi inlet through which fuel flows to create a drop in pressure in the area of the venturi, and an outlet through which fuel is discharged from the venturi. Fuel is drawn through the pump inlet by the drop in the pressure created in the area of the venturi and the flow controller is downstream of the outlet and has a chamber in which fuel from the venturi outlet is received. The flow controller causes fuel to fill the venturi to ensure performance of the fuel pump.

公开(公告)号：US20140239097A1

公开(公告)日：2014-08-28

申请号：US14190629

申请日：2014-02-26

Applicant: WALBRO ENGINE MANAGEMENT, L.L.C.

Inventor： Kenneth J. Cotton ,  Elton J. Fisch ,  David D. Hacker ,  Jeffrey D. Hanby ,  Kevin L. Israelson ,  Roger N. Smith

IPC: F02M37/02

CPC classification number: F02M37/20 ,  F02M37/007 ,  F02M37/103

Abstract: A fuel pump for a fuel system includes a nozzle, a venturi, a pump inlet and a flow controller. The nozzle has an orifice through which fuel is ejected and the venturi is downstream of the nozzle and has an inlet through which fuel discharged from the orifice flows, a passage downstream of the venturi inlet through which fuel flows to create a drop in pressure in the area of the venturi, and an outlet through which fuel is discharged from the venturi. Fuel is drawn through the pump inlet fuel by the drop in the pressure created in the area of the venturi and the flow controller is downstream of the outlet and has a chamber in which fuel from the venturi outlet is received. The flow controller causes fuel to fill the venturi to ensure performance of the fuel pump.

Abstract translation: 用于燃料系统的燃料泵包括喷嘴，文氏管，泵入口和流量控制器。 喷嘴具有一个孔口，通过该孔口喷射燃料，文丘里管在喷嘴的下游，并且具有一个从孔口排出的燃料的入口流过文丘里管入口下游的通道，燃料通过该通道在其中产生压力下降 文丘里管区域，以及从文氏管排出燃料的出口。 通过在文丘里管区域中产生的压力的下降，燃料被吸入燃料，并且流量控制器在出口的下游，并且具有容纳来自文丘里管出口的燃料的室。 流量控制器使燃料填充文丘里管以确保燃油泵的性能。