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:
Jul. 10, 2012
Filed:
Jun. 18, 2008
Frederick J. Rozario, Fenton, MI (US);
Joseph E. Robbins, Mayville, MI (US);
Frederick J. Rozario, Fenton, MI (US);
Joseph E. Robbins, Mayville, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A hydraulic control system to provide an oil or pressurized fluid supply to a variable cam phasing system in an engine is provided. The hydraulic control system includes a valve housing attachable to a front cover assembly of the engine; a first valve installed in the housing; and an inlet passage defined by the front cover assembly hydraulically communicating with the first valve in the housing to carry pressurized fluid from a fluid source to the first valve. A first and a second outlet passage defined by the housing hydraulically communicates with the first valve to allow the pressurized fluid to flow to the cam phasing system, thereby variably moving a camshaft assembly operatively connected to the cam phasing system.