Fuel-injection device

Details Fuel-injection device Fuel-injection device

1993-03-03

1994-01-11

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel injection system

123490, 123458, 123506, F02M 4100

Patent

active

052771636

ABSTRACT:
A fuel-injection device adjusts a fuel-injection level with a solenoid valve disposed in a fuel-supply passage which supplies the fuel to a compressor. A pulse width of a drive pulse to actuate the solenoid valve, which is determined by the sum of a time lag in the valve's closing caused by the motion of the valve member of the solenoid valve and of the time length at which the valve is to remain closed, is made shorter than the time lag in the valve's closing when the engine load is low. Current supplied to the solenoid is thus cut off immediately before the solenoid valve is completely closed, and a preflow caused by a rise in injection-pressure is reduced.

REFERENCES:
patent: 4475507 (1984-10-01), Miyaki
patent: 4667633 (1987-05-01), Stumpp
patent: 4721086 (1988-01-01), Scarnera
patent: 4726389 (1988-02-01), Minoura
patent: 4770178 (1988-09-01), Sauser
patent: 4788960 (1988-12-01), Oshizawa
patent: 4793313 (1988-12-01), Paganon
patent: 4922878 (1990-05-01), Shinogle
patent: 5099814 (1992-03-01), Ament
patent: 5176120 (1993-01-01), Takahashi
patent: 5195492 (1993-03-01), Groneberg

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