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. 07, 2009
Filed:
Jun. 01, 2007
Jeff L. Swain, Flushing, MI (US);
Craig D. Marriott, Clawson, MI (US);
Timothy L. Neal, Ortonville, MI (US);
Joseph J. Moon, Clawson, MI (US);
Jeff L. Swain, Flushing, MI (US);
Craig D. Marriott, Clawson, MI (US);
Timothy L. Neal, Ortonville, MI (US);
Joseph J. Moon, Clawson, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
An engine is provided having an engine block, a cylinder head mounted to the engine block, a valve train mounted to the cylinder head, and a cam cover extending over the valve train and mounted to the cylinder head. A hydraulic system for providing a hydraulic fluid to the valve train is included. The hydraulic system has a first passage extending from the engine block through the cylinder head to the cam cover and connected to a second passage. The second passage extends along a length of the cam cover and is connected to an oil control valve. At least one control passage extends from the oil control valve through the cam cover to the valve train. The oil control valve is mounted to a port in the cam cover and extends into the cam cover in a direction along a width of the cam cover.