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:
Jan. 10, 2017
Filed:
Feb. 18, 2015
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Markus Popp, Bamberg, DE;
Jan Pfannenmuller, Nuremberg, DE;
SCHAEFFLER TECHNOLOGIES AG & CO. KG, Herzogenaurach, DE;
Abstract
A method for operating an internal combustion engine with a sliding cam valve train that has a cam part () with three adjacent cams of different lifts (H, M, L) and a groove-shaped connecting link path with two path sections (S, S) that lift in both axial directions of the cam part and are arranged completely one behind the other around the circumference is provided. An actuator () selectively couples two actuator pins () in the connecting link path, in order to move the cam part. The base position of the cam part should be moved into a desired axial position during the operation of the internal combustion engine through successive coupling of the actuator pins in the connecting link path.