Fuel injection valves for internal combustion engines

Details Fuel injection valves for internal combustion engines Fuel injection valves for internal combustion engines

2005-05-03

2005-05-03

Nguyen, Dinh Q. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

C239S088000, C239S533110, C123S467000

Reexamination Certificate

active

06886760

ABSTRACT:
A fuel injection valve with a valve body has a bore that contains a piston-shaped valve member. The valve member is guided in the bore with a sealing section and a guiding section; between the sealing section and the guiding section, the valve member is encompassed by a first pressure chamber and between the guiding section and the combustion chamber end, is encompassed by a second pressure chamber. In the guiding section of the valve member, an annular collar is provided and has a side oriented toward the combustion chamber and a side oriented away from the combustion chamber. The annular collar has a throttle connection embodied on it, which connects the sides of the annular collar to each other and thus produces a throttled connection from the first pressure chamber to the second pressure chamber.

REFERENCES:
patent: 5860597 (1999-01-01), Tarr
patent: 5899385 (1999-05-01), Hofmann et al.
patent: 6422208 (2002-07-01), Ertem et al.
patent: 6527198 (2003-03-01), Stoecklein

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