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:
Feb. 17, 2015
Filed:
Nov. 11, 2011
Applicant:
Michael Busse, Herzogenaurach, DE;
Inventor:
Michael Busse, Herzogenaurach, DE;
Assignee:
Schaeffler Technologies GmbH & Co. KG, Herzogenaurach, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 1/34 (2006.01); F01L 1/344 (2006.01);
U.S. Cl.
CPC ...
F01L 1/3442 (2013.01); F01L 2001/34423 (2013.01); F01L 2001/34426 (2013.01); F01L 2001/3443 (2013.01); F01L 2001/34453 (2013.01); F01L 2001/34463 (2013.01); F01L 2800/01 (2013.01);
Abstract
A camshaft adjuster which has a control valve and at least one pressure-controlled positioning valve which is connected to a pair of control chambers. The control chambers each have an early chamber and a late chamber and one of the control chambers is designed in such a manner that, in an unenergized basic position of the control valve, in order to set a middle position, the smaller of the early and late chambers of the one of the control chambers is connected to a supply line and the larger of the early and late chambers of the one of the control chambers is connected to a removal line.