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:
Aug. 16, 2016
Filed:
Nov. 17, 2010
Gregory Mordukhovich, Bloomfield Hills, MI (US);
James L. Linden, Rochester Hills, MI (US);
Andrew M. Mance, Royal Oak, MI (US);
Gregory Mordukhovich, Bloomfield Hills, MI (US);
James L. Linden, Rochester Hills, MI (US);
Andrew M. Mance, Royal Oak, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
One embodiment may include a gear assembly comprising at least one pair of meshing gears situated inside a gear case having a sump portion and a wall portion. A gear oil mixture may be disposed at least in the sump portion. At least one gear is immersed partially or fully in the oil mixture. The oil mixture comprises a hydrocarbon oil base and a coolant having an endothermic liquid/vapor transition at a temperature between the lower and upper operating temperatures of the gear assembly.