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. 17, 1998
Filed:
Dec. 05, 1996
Dieter Goppelt, Aurachtal, DE;
Ina Walzlager Schaeffler KG, , DE;
Abstract
A device for the continuous variation of a relative angular position between a crankshaft and a camshaft of an internal combustion engine comprising a drive element (2) driven by the crankshaft of the internal combustion engine through a traction means, a sliding sleeve (7) which is positively locked by a first gearing (8, 9) to the drive element (2) and by a second gearing (10, 11) to a driven element (13), and an adjusting piston (6) which is fixed on the sliding sleeve (7) and guided in a housing (3) to axially delimit two pressure chambers (14, 15) which are sealed from each other by a sealing arrangement whereby a radially inward oriented sealing of the sliding sleeve (7), is achieved by providing a sealing disc (17) of continuous configuration which bears against an inner wall (19) of the sliding sleeve (7).