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. 18, 2007
Filed:
Sep. 14, 2004
Alfons Schoetz, Ditzingen, DE;
Walter Fuchs, Stuttgart, DE;
Gerhard Meier, Schorndorf, DE;
Jochen Aleker, Stuttgart, DE;
Andreas Dutt, Stuttgart, DE;
Alfons Schoetz, Ditzingen, DE;
Walter Fuchs, Stuttgart, DE;
Gerhard Meier, Schorndorf, DE;
Jochen Aleker, Stuttgart, DE;
Andreas Dutt, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A high-pressure pump has at least one pump element including a pump piston defining a work chamber and driven at least indirectly by a drive shaft in a reciprocating motion, counter to the force of a restoring spring. The pump piston is braced on the drive shaft at least indirectly via a sleevelike tappet, and the restoring spring engages at least the pump piston. A support element in the tappet braces the pump piston toward the drive shaft and is braced at least indirectly on the drive shaft. The restoring spring, via a spring plate, engages the pump piston and the tappet. The spring plate is elastically deformable in the direction of motion of the pump piston in such a way that as a result of its elastic deformation, deviations in the position of its contact faces on the pump piston and on the tappet are compensated for.