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:
Feb. 06, 2001
Filed:
Aug. 27, 1999
Martin Müller, Möglingen, DE;
Stefan Herold, Hallstadt, DE;
Jochen Riefenstahl, Litzendorf, DE;
Reinhold Brückner, Litzendorf, DE;
Dirk Fischbach, Bamberg, DE;
Andreas Eichendorf, Schorndorf, DE;
Martin Bühner, Backnang, DE;
Rainer Norgauer, Ludwigsburg, DE;
Jürgen Virnekäs, Breitbrunn, DE;
Peter Schramm, Knetzgau, DE;
Hans Weidler, Pettstadt, DE;
Christian Preussner, Markgröningen, DE;
Thomas Keil, Bamberg, DE;
Oliver Kirsten, Kulmbach, DE;
Ottmar Martin, Hochdorf/Eberdingen, DE;
Wolfgang Leuschner, Eggolscheim, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A fuel injection valve, in particular a high-pressure injection valve for the direct injection of fuel into the combustion chamber of a compressed mixture, externally ignited internal combustion engine, has in a guide and seat area provided at the downstream end of the valve which area is formed by three disk-shaped elements. A swirl element is nested between a guide element and a valve seat element. The guide element, which can move radially in the assembled valve and which has an inner guide opening, serves to guide an axially movable valve needle which extends through it, while a valve closing section of the valve needle acts in concert with a valve seat surface of the valve seat element. The guide element is spring-loaded through a compression spring which acts upon it.