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. 17, 2007
Filed:
Mar. 14, 2006
Gary J. Hazelton, White Lake, MI (US);
Franz Decarli, Garden City, MI (US);
Scott M. Kociba, Clarkston, MI (US);
Christopher W. Zwolensky, Grand Blanc, MI (US);
Gary J. Hazelton, White Lake, MI (US);
Franz Decarli, Garden City, MI (US);
Scott M. Kociba, Clarkston, MI (US);
Christopher W. Zwolensky, Grand Blanc, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
An internal combustion engine includes a crankcase and an upper oil pan. The crankcase includes a plurality of main bearing caps extending between a pair of side walls, with openings in the main bearing caps and in the side walls. The upper oil pan is configured to sealingly engage the crankcase, and includes openings therethrough, which align with the openings in the main bearing caps and the side walls when the upper oil pan engages the crankcase. Fasteners structurally tie the upper oil pan to both the crankcase side walls and the main bearing caps. The engine may further include a lower oil pan defining a sump and attached to the upper oil pan. The upper oil pan preferably includes an oil filter manifold, an oil scraper, and a plurality of oil passages, while also providing a windage tray.