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:
May. 06, 2008
Filed:
Mar. 14, 2006
Frederick J. Rozario, Fenton, MI (US);
Dominique T. Lester, Oxford, MI (US);
Stephen R. Kornblum, Walled Lake, MI (US);
Frederick J. Rozario, Fenton, MI (US);
Dominique T. Lester, Oxford, MI (US);
Stephen R. Kornblum, Walled Lake, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
Provided is a cylinder head including a head casting defining a plurality of exhaust ports. A tuned exhaust manifold is internally defined by the head casting. The tuned exhaust manifold includes a plurality of exhaust runners in communication with the plurality of exhaust ports and a collector volume in communication with the plurality of exhaust runners. Each of the plurality of exhaust ports and each of the plurality of exhaust runners are substantially oriented or directed toward the collector volume. Additionally, the head casting defines a main cooling jacket operable to cool the head casting. The head casting also defines an upper and lower cooling jacket disposed in heat exchange relation to the tuned exhaust manifold. The cylinder head casting may include integral spark plug tubes and cam drive case. Additionally, the cooling jackets may have a series coolant flow pattern or a parallel coolant flow pattern.