Fuel injector device for engines

Details Fuel injector device for engines Fuel injector device for engines

1997-08-26

2000-05-16

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With system fluid relief or return to supply

239 88, 239 90, 239 95, 239 96, 2391022, 2395339, B05B 900, F02M 4116, F02M 6120

Patent

active

060624892

ABSTRACT:
The fuel injection device of this invention utilizes the fuel pressure in the balance chamber for closing the open-close valve to prevent fuel leakage from the open-close portion. When the open-close valve is opened, the valve stem of the open-close valve piercing through the exhaust passage in the control member moves toward the balance chamber. The valve head opens the port of the exhaust passage on the balance chamber side to lower the fuel pressure in the balance chamber, with the result that the needle valve lifts injecting the fuel. When the open-close valve is closed by the return spring, the fuel pressure in the balance chamber acts on the valve head to urge the open-close valve in the valve closing direction, preventing the leakage of fuel through the open-close valve.

REFERENCES:
patent: 3680782 (1972-08-01), Monpetit et al.
patent: 4826080 (1989-05-01), Ganser
patent: 4909440 (1990-03-01), Mitsuyasu et al.
patent: 4964571 (1990-10-01), Taue et al.
patent: 5199641 (1993-04-01), Hohm et al.
patent: 5538187 (1996-07-01), Mueller et al.
patent: 5671715 (1997-09-01), Tsuzuki
patent: 5697554 (1997-12-01), Auwaerter et al.
patent: 5779149 (1998-07-01), Hayes, Jr.

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