Fuel injector

Details Fuel injector Fuel injector

2006-01-10

2006-01-10

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Including valve means in flow line

Reciprocating

C239S585500, C239S533200, C239S533300, C239S585300, C239S088000

Reexamination Certificate

active

06983900

ABSTRACT:
A fuel injector for fuel injection systems of internal combustion engines includes a valve needle and a valve closing body, which is operationally linked to it and cooperates with a valve seat face situated in a valve seat body to form a sealing seat. Upstream from the sealing seat there is at least one swirl channel, which has a tangential component relative to the longitudinal axis of the fuel injector. An axial channel, which is formed between the valve closing body and the guide recess of the valve seat body, has an axial component relative to the longitudinal axis of the fuel injector, the axial channel being formed between the guide recess and at least one flattened area on the valve needle.

REFERENCES:
patent: 4423843 (1984-01-01), Palma
patent: 4618095 (1986-10-01), Spoolstra
patent: 4685432 (1987-08-01), Saito et al.
patent: 5108037 (1992-04-01), Okamoto et al.
patent: 5207384 (1993-05-01), Horsting
patent: 5853124 (1998-12-01), Beck et al.
patent: 5996912 (1999-12-01), Ren et al.
patent: 198 15 795 (1999-10-01), None
Patent Abstracts of Japan, vol. 1998, No. 09, Jul. 31, 1998 & JP 10 103194 A (Mitsubishi Electric Corp.), Apr. 21, 1998.

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