Fuel injection device for internal combustion engines

Details Fuel injection device for internal combustion engines Fuel injection device for internal combustion engines

1989-10-20

1990-10-23

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel injection system

123494, 123300, 123450, F02M 3900

Patent

active

049643894

ABSTRACT:
A fuel injection device for internal combustion engines having externally supplied ignition, which enables introducing fuel injection quantities into combustion chambers in a manner that is controlled precisely in terms of quantity and of the instant of injection. The fuel injection device includes a first magnet valve by which fuel at injection pressure is pre-stored in a reservoir chamber, and the pre-stored quantity is ascertained by measurement of the deflection stroke of a reservoir piston which defines the reservoir chamber. Once the pre-storing process is complete, the pre-stored fuel quantity is then delivered to the injection valve with the air of a second magnetic valve. All that the fuel injection pump needs besides the two magnet valves and a control unit is a pre-feed pump, which pumps fuel into a high-pressure reservoir, so that while making limited demands on the pump generating the high pressure, a simple and very precisely functioning fuel injection device is created.

REFERENCES:
patent: 2986881 (1961-06-01), Moore
patent: 3568646 (1971-03-01), Wehde
patent: 4282843 (1981-08-01), Seilly
patent: 4377139 (1983-03-01), Jarrett
patent: 4409939 (1983-10-01), Fheim
patent: 4541385 (1985-09-01), Eheim
patent: 4627403 (1986-12-01), Matsumura

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