Fuel injection valve and a method for manufacturing exit outlets on the valve
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United States of America Patent
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-
Dec 7, 2004
Grant Date -
N/A
app pub date -
May 14, 2002
filing date -
Aug 11, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates among others to a method for producing outlet openings (32) in a valve, in particular a fuel injection valve. The injection valve has a fuel inlet (2), an excitable actuating device (1, 2, 19) by which a valve closing member (28) is movable, a fixed valve seat (27) embodied on a valve seat element (26), with which seat the valve closing member (28) cooperates to open and close the valve, and at least one outlet opening (32), as a fuel outlet, provided downstream of the valve seat (27). The at least one outlet opening 32 is produced in such a way that in a first method step, a through hole is created in the valve seat element (26), and in a second method step, from the ejection end of the through hole, an outlet region is created that is altered in shape and/or size and/or contour compared to the through hole.
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