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:
Apr. 11, 2006
Filed:
Oct. 06, 2004
Kai Lehmann, Ludwigsfelde, DE;
Jens-uwe Plank, Berlin, DE;
Jörg Rösener, Berlin, DE;
Holger Rudzinski, Berlin, DE;
Kai Lehmann, Ludwigsfelde, DE;
Jens-Uwe Plank, Berlin, DE;
Jörg Rösener, Berlin, DE;
Holger Rudzinski, Berlin, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
In a hydraulic camshaft adjuster for an internal combustion engine including a hydraulic operating unit for adjusting the angular position of the camshaft relative to a camshaft drive by way of a hydraulic control valve with a valve housing in which a control piston is disposed for controlling the supply of hydraulic fluid to, and its removal from, the hydraulic operating unit and to which hydraulic fluid is supplied from the camshaft by way of a pressure channel which is formed into the valve housing so as to extend along the outer surface thereof and a sleeve tightly surrounds at least the part of the valve housing which includes the channel for tightly covering the channel.