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. 21, 2006
Filed:
May. 18, 2005
Dirk Heintzen, Weisendorf, DE;
Jochen Auchter, Weisendorf, DE;
Ahmet Deneri, Wiesenttal, DE;
INA-Schaeffler KG, Herzogenaurach, DE;
Abstract
A device () for the hydraulic adjustment of the angle of rotation of a camshaft () in relation to a crankshaft of an internal combustion engine, situated at the drive-side end () of the camshaft () and formed of a drive unit () that stands in a driven connection with the crankshaft and an output unit () that is connected in rotationally fixed fashion with the camshaft () is provided. The drive unit () stands in a force-transmitting connection with the output unit () via at least two pressure chambers () formed inside the device (), the supply of pressure medium to the pressure chambers () taking place via a separate distributor housing () that has a connecting flange () suitable for transmitting pressure medium to the device () and a control valve receptacle () that is connected to the connecting flange () via two pressure medium conduits (). The output unit () is fastened non-positively to the camshaft (), which passes through the device axially with its drive-side end () and has a hollow construction, the end segment () of the camshaft () being enclosed by the connecting flange () of the distributor housing () and having a plurality of radial bores () that stand in pressure medium connection with additional radial bores () in the camshaft () via a distributor insert () that can be placed into the hollow space () of the camshaft ().