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:
Jan. 03, 2006
Filed:
Apr. 02, 2001
Applicants:
Johannes-jörg Rueger, Vaihingen/enz, DE;
Wolfgang Stoecklein, Stuttgart, DE;
Bertram Sugg, Gerlingen, DE;
Inventors:
Johannes-Jörg Rueger, Vaihingen/enz, DE;
Wolfgang Stoecklein, Stuttgart, DE;
Bertram Sugg, Gerlingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention describes a method and an apparatus for charging a piezoelectric element, for example, used as an actuator in a fuel injection system of an internal combustion engine. The method and apparatus are characterized in that the piezoelectric element is activated by an activation voltage having a value set as a function of manufacturing characteristics of the particular piezoelectric element and based upon, for example, a correction value for injected fuel volume.