Fuel injection valve

Details Fuel injection valve Fuel injection valve

2005-09-06

2005-09-06

Kim, Christopher (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

C239S585500, C239S463000

Reexamination Certificate

active

06938840

ABSTRACT:
A fuel injector, in particular a high pressure injector for direct injection of fuel into a combustion chamber of an internal combustion engine having externally supplied ignition and mixture compression, is characterized in that a valve needle, which is movable axially along a longitudinal axis of the valve, has a specially designed valve closing section on its downstream end. To open and close the valve, the valve closing section works together with a fixed valve seat. Swirl-producing elements are arranged upstream from the valve seat while a flattened face running perpendicular to the longitudinal axis of the valve is provided on the downstream end of the valve closing section downstream from the valve seat.

REFERENCES:
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patent: 5350119 (1994-09-01), Bergstrom
patent: 5772124 (1998-06-01), Tamaki et al.
patent: 5878962 (1999-03-01), Shen et al.
patent: 5996912 (1999-12-01), Ren et al.
patent: 30 46 889 (1982-07-01), None
patent: 38 08 635 (1989-09-01), None
patent: 10 047 210 (1998-02-01), None
patent: WO 99 32 784 (1999-07-01), None

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