High pressure fuel injection unit for engine

Details High pressure fuel injection unit for engine High pressure fuel injection unit for engine

1990-12-21

1992-09-29

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel injection system

123447, 123496, F02M 3900

Patent

active

051506840

ABSTRACT:
An accumulator type fuel injector and method of operating it wherein the injection timing is held substantially constant relative to output shaft angle beginning of the range of 5.degree. before top dead center to top dead center and is closed within the range of 25.degree. to 35.degree. after top dead center and wherein the amount of fuel injected is controlled primarily by varying the pressure of the fuel delivered to the accumulator chamber. Various valve lift characteristics may be employed with conjunction with the invention.

REFERENCES:
patent: 1865099 (1932-06-01), Groff
patent: 3822677 (1974-07-01), Reddy
patent: 4462368 (1984-07-01), Funada
patent: 4478196 (1984-10-01), Hafner
patent: 4545352 (1985-10-01), Jourde
patent: 4566416 (1986-01-01), Berchtold
patent: 4669429 (1987-06-01), Nishida
patent: 4699109 (1987-10-01), Hensel
patent: 4784101 (1988-11-01), Iwanaga
patent: 4884545 (1989-12-01), Mathis

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