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:
Aug. 23, 2016
Filed:
Nov. 24, 2014
GM Global Technology Operations Llc, Detroit, MI (US);
Alan W. Hayman, Romeo, MI (US);
Robert S. McAlpine, Lake Orion, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A camshaft assembly for an internal combustion engine includes a camshaft, a first lobe set, and a second lobe set, extending along, and rotatable about, a cam axis. The first lobe set includes a first, second, and third lobe. The second lobe set includes a first and second lobe. The first lobe set is movable along the cam axis between a first, second, and third position. The second lobe set is movable along the cam axis between a first and second position. The first and second position of each of the first and second lobe sets corresponds to lift of a respective valve stem in the engine. The third position of the first lobe set corresponds to zero lift of the respective valve stem to provide cylinder deactivation of a corresponding cylinder within the engine.