Fuel pump with regulated output

Details Fuel pump with regulated output Fuel pump with regulated output

1997-12-01

1999-03-16

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

With fuel pump

417295, 123509, 123516, F02M 3704

Patent

active

058816984

ABSTRACT:
A fuel pump with an inlet through which fuel is drawn from a fuel tank and an outlet through which fuel is discharged under pressure to an operating engine of a vehicle has an inlet throttle valve actuated by the pressure of the pump outlet fuel to at least partially restrict the flow of fuel through the inlet of the fuel pump and thereby reduce the flow rate of fuel discharged from the fuel pump when the fuel pump is delivering more fuel than is being consumed by the engine. The valve is preferably received within an inlet module between the fuel tank inlet and the fuel pump inlet. Preferably, the valve is slidably received in a passage in the module and actuated by a diaphragm received in the passage and displaceable by the pressure of the pump outlet fuel in response to engine fuel demand.

REFERENCES:
patent: 3982855 (1976-09-01), Aldinger
patent: 4237926 (1980-12-01), Walker
patent: 4470427 (1984-09-01), Mailochaud
patent: 4974570 (1990-12-01), Szwargulki et al.
patent: 5050567 (1991-09-01), Suzuki
patent: 5415146 (1995-05-01), Tuckey
patent: 5647331 (1997-07-01), Swanson
patent: 5724947 (1998-03-01), Takaki et al.
patent: 5762047 (1998-09-01), Yoshioka et al.

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