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:
Mar. 04, 2008
Filed:
Mar. 19, 2004
Applicants:
Friedrich Boecking, Stuttgart, DE;
Dieter Kienzler, Leonberg, DE;
Dietmar Uhlmann, Korb, DE;
Uwe Bruetsch, Stuttgart, DE;
Inventors:
Friedrich Boecking, Stuttgart, DE;
Dieter Kienzler, Leonberg, DE;
Dietmar Uhlmann, Korb, DE;
Uwe Bruetsch, Stuttgart, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/053 (2006.01);
U.S. Cl.
CPC ...
Abstract
An actuator unit which is suitable for actuating a fuel injection valve of an injection system for internal combustion engines includes a piezoelectric actuator and a hollow body embodied as a spring. The service life of the actuator unit can be improved by designing the hollow body to eliminate or minimize bending stresses on the piezoelectric actuator.