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:
Oct. 02, 2007
Filed:
Apr. 20, 2006
Jens Schäfer, Herzogenaurach, DE;
Martin Steigerwald, Erlangen, DE;
Jonathan Heywood, Pettstadt, DE;
Jens Schäfer, Herzogenaurach, DE;
Martin Steigerwald, Erlangen, DE;
Jonathan Heywood, Pettstadt, DE;
Schaeffler-KG, Herzogenaurach, DE;
Abstract
The invention relates to a device () for the variable setting of the control times of gas-exchange valves of an internal combustion engine, with a driving element (), with a driven element () and with an adjusting gear () designed as a triple-shaft gear, the driving element () being mounted rotatably with respect to the driven element () on the latter or on the camshaft (). The relative phase position of the driven element () with respect to the driving element () can be selectively varied or held by means of the adjusting gear (). According to the invention, it is proposed to mount the driving element () on the driven element () by means of rolling bearings (). Radial and/or axial forces can thereby be supported in an optimized way in terms of friction, as a result of which the efficiency of the device () is increased.