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. 14, 2009
Filed:
Oct. 31, 2007
David R. Staley, Flushing, MI (US);
Alan W. Hayman, Romeo, MI (US);
Jeremy T. Demarest, Waterford, MI (US);
James J. Mazzola, Iii, Dryden, MI (US);
Frederick J. Rozario, Fenton, MI (US);
David R. Staley, Flushing, MI (US);
Alan W. Hayman, Romeo, MI (US);
Jeremy T. Demarest, Waterford, MI (US);
James J. Mazzola, III, Dryden, MI (US);
Frederick J. Rozario, Fenton, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A windage tray apparatus is provided and is configured to be mountable within a crankcase at least partially defined by an engine block of an internal combustion engine. The crankcase has a first bay and a non-adjacent second bay. The internal combustion engine has a crankshaft rotatably supported within the crankcase. The windage tray includes a tray member and a passage at least partially defined by said tray member and in communication with the first bay and the non-adjacent second bay. The passage is operable to allow gas transfer between the first bay and the non-adjacent second bay to reduce the motoring friction of the internal combustion engine. An internal combustion engine incorporating the disclosed windage tray apparatus is also provided.