Fuel pump/filter integration
AssigneeFederal-Mogul World Wide, Inc.
InventorsDavid E. Winn, Larry J. Tipton
Life of this patent
Estimating the term…
Abstract
A vehicle having an engine, a fuel tank, and a pump encased in a housing. The pump is in fluid communication with the fuel tank and the engine. A filter is disposed intermediate the fuel pump and the engine. An electrical conductor having an inoperative position and an operative position is operatively associated with the pump. When the filter is installed, the electrical conductor contacts the pump housing to ground the pump allowing operation thereof.
Claims14
A fuel distribution system for use with an engine, said system comprising:
- a fuel reservoir;
- electrically operated fuel pump having an electrical circuit and a fuel pump housing, said fuel pump being grounded to said fuel pump housing;
- a fluid flow path disposed between said fuel reservoir and an engine, said fuel pump disposed in said fluid flow path;
- a fuel filter selectively disposed in said fluid flow path;
- and
- an electrical conductor for selectively closing the electrical circuit of said pump to allow operation thereof, said electrical conductor having an inoperative position and an operative position, whereby the electrical circuit of said fuel pump is closed when said electrical conductor achieves said operative position, said electrical conductor maintaining said operative position when said fuel filter is disposed in said fluid flow path, said electrical conductor maintaining said inoperative position when said fuel filter is removed from said fluid flow path, and wherein said electrical conductor contacts said pump housing in said operative position.
An apparatus for preventing non-filtered fuel from reaching an engine connected via a fluid flow path to a fuel tank, said apparatus comprising:
- an electrically operated fuel pump disposed in the fluid flow path, said pump in fluid communication with the fuel tank and the engine, said pump having a housing;
- a fuel filter selectively disposed in the fluid flow path, said filter in fluid communication with said fuel tank, said pump, and the engine, said fuel filter being positioned upstream of the engine;
- and
- an electrical conductor comprising a spring clip connected to ground, said electrical conductor having an inoperative position and an operative position, whereby said electrical conductor grounds said fuel pump in said operative position, said electrical conductor maintaining said operative position when said fuel filter is disposed in said fluid flow path, said electrical conductor maintaining said inoperative position when said fuel filter is removed from said fluid flow path.
An apparatus for preventing non-filtered fuel from reaching an engine in a vehicle, comprising:
- a fuel tank;
- an electrically operated fuel pump having a pump housing and an electrical circuit;
- a filter housing defining a fluid flow path disposed between said fuel tank and said engine, said fuel pump disposed in said fluid flow path;
- a fuel filter selectively disposed in said fluid flow path;
- electrically conductive means for selectively closing said electrical circuit of said pump to allow operation thereof, wherein said conductive means closes the electrical circuit of said pump when said fuel filter is disposed in said fluid flow path;
- and
- wherein said electrically conductive means comprises a resilient member, said resilient member having two ends, a first one of said ends affixed to said filter housing, a second one of said ends being movable between an inoperative position in which the electrical circuit of said fuel pump is open, and an operative position in which the electrical circuit of said fuel pump is closed.
A method of preventing non-filtered fuel from reaching an engine when a fuel filter is not operably positioned in a fluid flow path upstream from the engine, said method comprising:
- providing an electrically operated fuel pump having an open electrical circuit and a fuel pump housing, said fuel pump grounded to said housing;
- providing an electrical conductor moveable to complete said electrical circuit, said electrical conductor moved into position to complete said electrical circuit when said fuel filter is operably positioned in the fluid flow path;
- and
- connecting said electrical conductor to ground.
Dependencies are inferred from the claim text.