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. 01, 2014
Filed:
Jun. 27, 2012
Ronny Gunnel, Puschendorf, DE;
Linda Funke, Herzogenaurach, DE;
Steffen Hein, Hirschaid, DE;
Schaeffler Technologies GmbH & Co. KG, Herzogenaurach, DE;
Abstract
Engine with a crank mechanism and a cylinder head whose intake and exhaust channels are regulated by gas exchange valves activated by cams of at least one camshaft. The cams are sliding cams with at least one cam per sliding cam assembly arranged rotationally fixed but axially displaceable on a base shaft, and each having an actuator with an actuator pin for displacing the sliding cam assemblies into different axial positions via at least one displacement groove which cooperates with the pin. The displacement groove being helical shaped and having a run-in and a run-out region for the pin and a displacement flank and an opposing support flank. A detent device locks the sliding cam assemblies in different axial positions. A distance between the displacement flank and the support flank remains constant along the entire extent of the displacement groove parallel to the displacement direction of the sliding cam assembly.