Fuel injection system of an engine and a control method therefor

Internal-combustion engines – Charge forming device – Fuel injection system

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123447, 123300, F02M 3704

Patent

active

057718652

ABSTRACT:
A fuel injection system of an engine comprises a fuel tank, a fuel pressure pump for pressurizing a fuel supplied from the fuel tank, an injector connected to the fuel pressure pump by means of a fuel pipe. The injector includes a nozzle connected to the fuel pipe by means of a fuel passage, a pressure chamber into which the pressurized fuel is introduced from the fuel passage, and a nozzle valve for opening and closing the nozzle depending on the fuel pressure in the pressure chamber. The system further comprised a fuel return passage connecting the pressure chamber and the fuel tank, and first and second solenoid valves for determining the start and termination of fuel injection through the nozzle.

REFERENCES:
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patent: 4168688 (1979-09-01), Bart
patent: 4211202 (1980-07-01), Hafner
patent: 4580540 (1986-04-01), Babitzka
patent: 4603671 (1986-08-01), Yoshinaga
patent: 4831986 (1989-05-01), Linder
patent: 5176120 (1993-01-01), Takahashi
patent: 5529024 (1996-06-01), Wirbelfit
patent: 5622152 (1997-04-01), Ishida

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