The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 07, 2004
Filed:
May. 14, 2002
Martin Maier, Moeglingen, DE;
Guenther Hohl, Stuttgart, DE;
Guenter Dantes, Eberdingen, DE;
Detlef Nowak, Untergruppenbach, DE;
Joerg Heyse, Besigheim, DE;
Norbert Keim, Loechgau, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates among others to a method for producing outlet openings ( ) in a valve, in particular a fuel injection valve. The injection valve has a fuel inlet ( ), an excitable actuating device ( ) by which a valve closing member ( ) is movable, a fixed valve seat ( ) embodied on a valve seat element ( ), with which seat the valve closing member ( ) cooperates to open and close the valve, and at least one outlet opening ( ), as a fuel outlet, provided downstream of the valve seat ( ). The at least one outlet opening is produced in such a way that in a first method step, a through hole is created in the valve seat element ( ), 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.