Accumulator-type fuel injection system

Details Accumulator-type fuel injection system Accumulator-type fuel injection system

1996-04-17

1998-03-31

Miller, Carl S.

Internal-combustion engines

Charge forming device

Fuel injection system

123447, F02M 3704

Patent

active

057326797

ABSTRACT:
A fuel injection system includes a fuel injector having a body, a needle valve movably provided in the body and a fuel accumulator having two chambers for storing a fuel at high and low pressures. An injection chamber is formed in the injector lower body and a control chamber is formed in the injector upper body. An injection passage connects the high pressure chamber with the injection chamber and a control passage connects the low pressure chamber with the control chamber. The needle valve is lifted upon leaking of the fuel to the accumulator from the control chamber and the fuel is injected from the injection chamber upon lifting of the needle valve. The fuel is recycled to the fuel tank from the control chamber.

REFERENCES:
patent: 4603671 (1986-08-01), Yoshinaga et al.
patent: 4719889 (1988-01-01), Amann
patent: 4784101 (1988-11-01), Iwanaga
patent: 5012786 (1991-05-01), Voss
patent: 5156132 (1992-10-01), Iwanaga
patent: 5511528 (1996-04-01), Iwanaga
patent: 5626119 (1997-05-01), Timms
patent: 5664545 (1997-09-01), Kato
European Search Report Application EP96106453.

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