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US 12,662,647 B2Granted
Use of molybdenum compounds in driveline lubricants for reduced friction and copper corrosion
AssigneeAfton Chemical Corporation
InventorsKun Liu, Yungwan Kwak, Joseph Remias
Life of this patent
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Abstract
A driveline lubricating composition for electric or hybrid-electric motor systems including a phosphorus antiwear additive and a multi-functional oil-soluble organolmolybdenum friction modifier to provide friction modification and low copper leaching.
Claims16
A method of lubricating a driveline of an electric or hybrid-electric vehicle, the method comprising:
- lubricating the driveline of the electric or hybrid-electric vehicle with a lubricating composition;
- and
- wherein the lubricating composition includes (i) one or more base oils of lubricating viscosity;
- (ii) a phosphorus antiwear additive providing about 100 ppm or less phosphorus to the driveline lubricating composition;
- (iii) a multi-functional oil-soluble organomolybdenum friction modifier and corrosion inhibitor having one or more ester and/or amide moieties and having about 1 to about 15 weight percent molybdenum;
- and wherein the driveline lubricating composition has less than about 300 ppm of total sulfur.
3 more elements
Dependencies are inferred from the claim text.