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:
Jul. 20, 2004
Filed:
Nov. 06, 2002
Thomas Sebastian, Stuttgart, DE;
Jens Pohlmann, Schwieberdingen, DE;
Martin Maier, Moeglingen, DE;
Guenter Dantes, Eberdingen, DE;
Detlef Nowak, Untergruppenbach, DE;
Joerg Heyse, Besigheim, DE;
Joerg Schlerfer, Bietigheim-Bissingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A fuel injector for fuel injection systems of internal combustion engines has a valve needle ( ) and, mechanically linked thereto, a valve closing body ( ), which cooperates with a valve seat surface ( ) disposed in a valve seat body ( ) to form a sealing seat, and has a plurality of recesses ( ), which are introduced in the valve seat body ( ) downstream from the sealing seat. Situated downstream on the valve seat body ( ) is a flow-through screen ( ) in which, for each recess ( ), at least one discharge orifice ( ) is introduced, whose cross-section is smaller than that of the particular recess ( ) and which is positioned such that its inlet cross-section is situated fully within the outlet cross-section of the particular recess ( ).