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US 2024/0327744 A1Published application
Electric Vehicle Lubricants and Additives
AssigneeVgp Ipco LLC
InventorAnant Kolekar
Life of this patent
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Abstract
An electric vehicle lubricant formulation is provided that includes: a Group Il to V base oils, an oxidation inhibitor, and an anti-wear or extreme pressure additive. This formulation provides superior copper corrosion and extreme pressure at high temperatures and have an extremely low electrical conductivity and used oil foam than commercially available products.
Claims15
An electric vehicle lubricant formulation comprising:
- a Group II, III, IV or V base oil,
- an oxidation inhibitor, and
- an anti-wear or extreme pressure additive,
- wherein the formulation is configured to provide a load wear index of between about 40 to about 55 LWI in a Four ball EP test ASTM D2596, provide between about 0 ppm to about 30 ppm of copper in fluid as measured by ASTM D130@150° C., 168 hr, and provide an electrical conductivity of between about 10 pS/m@20° C. and 1750 pS/m@20° C. as measured by ASTM D2624, or provide used oil foam as measured by ASTM D892 is less than 50/0 for all three sequences.
1 more element
An electric vehicle lubricant formulation comprising:
- about 89 wt % to about 99.7 wt % of a Group II, III, IV or V base oil, or a combination of a Group II, III, IV or V base oil,
- about 0.1 wt % to about 1 wt % oxidation inhibitor, and
- about 0.1 wt % to about 5 wt % an anti-wear or extreme pressure additive, and
- about 0.1 wt % to about 5 wt % an additional additive,
- wherein the formulation provides between about 0 ppm to about 30 ppm of copper in fluid as measured by ASTM D130@150° C., 168 hr or provides an electrical conductivity of between about 10 pS/m@20° C. and 1750 pS/m@20° C. as measured by ASTM D2624 or provide used oil foam as measured by ASTM D892 is less than 50/0 for all three sequences.
2 more elements
Dependencies are inferred from the claim text.