Self-contained fuel pressure regulator

Details Self-contained fuel pressure regulator Self-contained fuel pressure regulator

1986-02-12

1988-07-12

Miller, Carl Stuart

Internal-combustion engines

Charge forming device

Fuel injection system

123468, 123447, 123467, F02M 3400

Patent

active

047562897

ABSTRACT:
A fuel pressure regulator base has a fuel chamber adapted for plug-connection directly to the fuel rail to receive fuel from the rail, a flexible diaphragm closes the chamber, a cover forms a pressure chamber with the diaphragm, and the pressure regulator base further has a pressure passage adapted for plug-connection directly to the inlet manifold and extending to the pressure chamber to transfer the manifold pressure to the pressure chamber. The diaphragm thereby senses the difference between the fuel pressure and the manifold pressure and operates a valve to discharge excess fuel from the fuel chamber and the fuel rail and thus maintain the fuel in the rail at the desired pressure.

REFERENCES:
patent: 2948273 (1960-08-01), Suttle
patent: 3511270 (1970-05-01), Fehrenbach
patent: 4235205 (1980-11-01), Fukui
patent: 4300510 (1981-11-01), Ishida
patent: 4570601 (1986-02-01), Ito
patent: 4633901 (1987-01-01), Brandt
"Buick Electra-Park Avenue Chassis Service Manual", 1985, Buick Motor Division, General Motors Corporation, Flint, Mich.
Asayama, Japan Pat. No. 57-195862, Derwant Abstract, Dec. 1, 1982.

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