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:
May. 09, 2017
Filed:
Nov. 27, 2008
Steffen Wieland, Waiblingen, DE;
Marion Schieber-stitz, Weissach Im Tal, DE;
Tobias Landenberger, Schorndorf, DE;
Tilman Miehle, Waiblingen, DE;
Jochen Wessner, Esslingen, DE;
Steffen Wieland, Waiblingen, DE;
Marion Schieber-Stitz, Weissach Im Tal, DE;
Tobias Landenberger, Schorndorf, DE;
Tilman Miehle, Waiblingen, DE;
Jochen Wessner, Esslingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a fuel metering device for regulating the delivery rate of a high-pressure fuel pump of a fuel injection device for an internal combustion engine. The fuel metering device has a control valve actuated by an electromagnet and having a valve member. The electromagnet has an armature and an armature rod and the armature rod is axially movably supported in at least one bushing. The at least one bushing is designed as a solid, one-piece metal component. The bushing is preferably made of steel and the bearing surface thereof, in which the armature rod is supported, has a nitrocarburized and polished surface layer.