Fuel injection valve

Details Fuel injection valve Fuel injection valve

2006-06-27

2006-06-27

Scherbel, David A. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

C239S533200, C239S533110

Reexamination Certificate

active

07066397

ABSTRACT:
The invention relates to a valve, in particular a fuel injection valve for a high-pressure accumulator injection system of an internal combustion engine. Said valve comprises a valve body, provided with a valve body seat and a valve needle, guided over a guiding length in said valve body within a stationary circular cylindrical guiding surface and provided with a valve needle seat for controlling a spray orifice. According to the present invention, a pressure reservoir under high pressure, in the shape of an annular groove arranged coaxially in relation to the guiding surface, is provided in said valve body.

REFERENCES:
patent: 4674688 (1987-06-01), Kanesaka
patent: 5899389 (1999-05-01), Pataki et al.
patent: 6189817 (2001-02-01), Lambert
patent: 25 21 339 (1976-11-01), None
patent: 199 56 830 (2001-06-01), None
patent: 1 334 939 (1973-10-01), None
patent: 01/02718 (2001-01-01), None
PCT International Search Report PCT/DE02/03628.

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