Fuel injection valve for an internal combustion engine

Details Fuel injection valve for an internal combustion engine Fuel injection valve for an internal combustion engine

2006-05-16

2006-05-16

Nguyen, Dinh Q. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

C239S533110, C239S533120

Reexamination Certificate

active

07044406

ABSTRACT:
Disclosed is a fuel injection valve for internal combustion engines having a valve body in which a hollow valve needle is disposed longitudinally displaceably in a bore. The hollow valve needle, on its end toward the combustion chamber, has a conical valve sealing face, which cooperates with a conical valve seat disposed on the end of the bore toward the combustion chamber. A longitudinal bore is embodied in the hollow valve needle, and a valve needle is disposed in it and, with a valve contact face embodied on its end toward the combustion chamber, likewise cooperates with the valve seat. The tip of the hollow valve needle toward the combustion chamber is formed by a chamfer.

REFERENCES:
patent: 4570853 (1986-02-01), Schmied
patent: 4658824 (1987-04-01), Scheibe
patent: 6260775 (2001-07-01), Lambert et al.
patent: 6412712 (2002-07-01), Buckley

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