Walbro Corporation

Walbro Engine Management, L.l.c.

Douglas W Salowitz, Jr

David L Speirs

Kevin L Israelson

Jeffrey D Hanby

Roger N Smith

Edward J Talaski

Elton J Fisch

Kenneth J Cotton

Russell R Speirs

In at least some implementations, an assembly includes a reservoir, a primary fuel pump having an inlet in communication with the reservoir's internal volume, an outlet, a motor and a pumping element driven by the motor and a secondary fuel pump with a body having first and second inlets and an outlet. The first inlet receives fuel from the primary fuel pump and a nozzle is communicated with the first inlet and fuel flows out of the nozzle into the body via the first inlet. The second inlet is in communication with the reservoir inlet, and the outlet is in communication with the internal volume. The flow of fuel through the nozzle draws fuel from the fuel source through the second fuel inlet and that fuel is combined with the flow of fuel from the nozzle and discharged into the reservoir.

Fuel pump assembly with electric motor fuel pump and fluid driven fuel pump

In at least some implementations, a fuel pump assembly includes a fuel pump having an inlet through which fuel enters the fuel pump and a first outlet from which pressurized fuel is discharged for delivery to an engine, and a second outlet through which some of the fuel discharged from the fuel pump is routed wherein that fuel is not delivered to the engine, wherein the second outlet has a flow area that permits a flow of fuel through the second outlet that is sufficient to reduce the maximum pressure of fuel downstream of the first outlet for delivery to an engine to between 1/10th and 1/25th of the output pressure of the fuel pump without flow through the second outlet.

Fuel pump assembly with diverted flow

In at least some implementations, a fluid level sensor assembly includes a housing, a sensor element carried by the housing, an arm that moves relative to the sensor element, a saddle coupled to at least part of the arm to retain the position of the arm relative to the sensor element, and a retainer. The retainer is coupled to the saddle and overlies a portion of the saddle, the arm or both, to inhibit decoupling of the arm from the saddle.

Retainer for a moveable arm of a fluid level sensor

An in-tank fuel pump assembly may have a mounting flange with a plurality of first coupling features, a fuel pump, a carrier connected to the fuel pump, a plurality of second coupling features on at least one of the carrier and the fuel pump, and a plurality of supports each connected to one or the first and second coupling features to locate the pump relative to the mounting flange. In some embodiments, at least one coupling feature is movable.

Fuel pump assembly with removable and/or movable supports

An in-tank fuel pump assembly may have a mounting flange with a plurality of first couplings, a fuel pump, a carrier connected to the fuel pump, a plurality of second couplings on at least one of the carrier and the fuel pump, and a plurality of supports each connected to one or the first and second couplings to locate the pump relative to the mounting flange.

Fuel pump assembly with removable supports

In at least some implementations, a retainer for a fuel system component having an electrically conductive portion accessible from the exterior of the component includes a retaining feature and a grounding feature. The retaining feature is adapted to maintain the location of the fuel system component and the grounding feature electrically couples a ground wire to the electrically conductive portion of the fuel system component. The fuel system component is grounded through a path including the grounding feature and ground wire.

Retainer with grounding feature for fuel system component

In at least some implementations, a seal for a wire includes a body having at least one opening adapted to receive at least one wire therethrough, and an axially extending engagement surface disposed around at least a portion of each of said at least one openings. The engagement surface has at least a portion that is not parallel to an axis of the opening and is disposed at an acute included angle relative to the axis so that, when the engagement surface is contacted by another component, the size of the adjacent opening tends to be reduced.

Wire seal assembly

A mount for a level sensor assembly in a fuel tank may include an interconnect member adapted to couple a first tube to a second tube to permit fuel flow through the first tube, the interconnect member and the second tube. The first tube is adapted to be in fluid communication with a fuel pump and the second tube is in fluid communication with fuel in the fuel tank. A bracket is coupled to the interconnect member and adapted to carry at least a portion of the level sensor assembly. In this way, the level sensor assembly may be coupled to fluid tubes associated with the fuel pump, or other tubes, as desired.

Level sensor mount

A fuel pump assembly may include a housing and a fuel pump within a fuel pump cavity. The fuel pump may include a motor, a pumping element driven for rotation by the motor, a pump body that maintains the position of the pumping element relative to the motor and the housing, and a flexible seal. The seal may be disposed between the pump body and the housing to provide a fluid tight seal between them. A portion of the seal may be disposed radially outwardly of a distal end of the pump body to radially position the pump body within the fuel pump cavity and a portion of the seal may be disposed axially outwardly of the distal end of the pump body to axially position the pump body within the fuel pump cavity.

Growing community of inventors

Palms, MI, United States of America

Douglas W Salowitz, Jr