Fuel pump manifold

Details Fuel pump manifold Fuel pump manifold

1993-02-08

1994-11-08

Miller, Carl S.

Internal-combustion engines

Charge forming device

With fuel pump

123514, 123497, F02M 3704

Patent

active

053617428

ABSTRACT:
A fuel pump manifold for a no-return fuel system for an automotive engine. The manifold has inlet and outlet passages with a check valve which opens when fuel is supplied to the engine and closes to prevent reverse flow of fuel when the outlet pressure is greater than the inlet pressure and a vent valve between the outlet and inlet and in parallel with the check valve which is normally closed and opens when the outlet pressure exceeds the inlet pressure by at least a predetermined minimum value which is usually the desired minimum pressure of fuel supplied to the operating engine when idling. Preferably, a normally closed pressure relief valve also communicates with the outlet to relieve overpressure of the outlet fuel supplied to the engine.

REFERENCES:
patent: 2881749 (1959-04-01), Pringham
patent: 3231003 (1966-01-01), Richcreek
patent: 4044746 (1977-08-01), Kaye
patent: 4062336 (1977-12-01), Gant
patent: 4064855 (1977-12-01), Johnson
patent: 4111173 (1978-09-01), Skinner
patent: 4319550 (1982-03-01), Ishii
patent: 4450820 (1984-05-01), Haynes
patent: 4546745 (1985-10-01), Brotherston
patent: 4971017 (1990-11-01), Beakley
patent: 5044344 (1991-09-01), Tuckey et al.
patent: 5148792 (1992-09-01), Tuckey

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