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:
Jul. 09, 2013
Filed:
Sep. 17, 2010
Rainer Ottersbach, Aurachtal, DE;
Jürgen Weber, Erlangen, DE;
Christoph Betz, Untermembach/Hessdorf, DE;
Rainer Ottersbach, Aurachtal, DE;
Jürgen Weber, Erlangen, DE;
Christoph Betz, Untermembach/Hessdorf, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A device for varying the relative angular position of a camshaft () with respect to a crankshaft of an internal combustion engine. The device has a drive element which is driven by the crankshaft via a gearwheel and which is mounted rotatably with respect to the camshaft. Between the drive element and the camshaft, there is at least two hydraulic chambers which can be acted upon with a pressure fluid in order to set a defined relative rotary position between the drive element and the camshaft.