Fuel-injection valve

Details Fuel-injection valve Fuel-injection valve

2007-03-13

2007-03-13

Nicolas, Frederick C. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Including valve means in flow line

Reciprocating

C239S585200, C239S585300, C239S585400, C239S585500, C239S533200, C239S533400, C239S533500, C239S533150

Reexamination Certificate

active

10815378

ABSTRACT:
The fuel injection valve, for an internal combustion motor, has a valve body with injection openings (20) at its point. A valve needle has an axial movement within the valve body, with a conical needle point to give a selective blocking and release of the fuel flow through the injection openings. The point of the valve needle has recessed grooves matching each of the injection openings. The width of each groove matches the diameter of an injection opening, with a stepped contour and a curved cross section.

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patent: 5127584 (1992-07-01), Sczomak
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patent: 10005009 (2001-08-01), None
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patent: 10252605 (1998-09-01), None
PCT International Search Report Application No. PCT/DE02/03725, 8 pages, Mailed Dec. 16, 2003.

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