US 12,410,377 B2
Electric vehicle grease
Jacob Bonta, Berea, KY (US); and Lucas Tomko, Lexington, KY (US)
Assigned to VGP IPCO LLC, Lexington, KY (US)
Filed by VGP IPCO LLC, Lexington, KY (US)
Filed on Apr. 14, 2023, as Appl. No. 18/300,715.
Claims priority of provisional application 63/331,549, filed on Apr. 15, 2022.
Prior Publication US 2023/0332066 A1, Oct. 19, 2023
Int. Cl. C10M 169/00 (2006.01); C10M 101/00 (2006.01); C10M 117/00 (2006.01); C10M 119/24 (2006.01); C10M 133/12 (2006.01); C10M 135/10 (2006.01); C10M 135/18 (2006.01); C10M 137/10 (2006.01); C10M 141/10 (2006.01); C10M 145/16 (2006.01); C10M 161/00 (2006.01); C10N 20/02 (2006.01); C10N 30/00 (2006.01); C10N 30/02 (2006.01); C10N 30/06 (2006.01); C10N 30/10 (2006.01); C10N 30/12 (2006.01); C10N 40/02 (2006.01); C10N 50/10 (2006.01)
CPC C10M 169/00 (2013.01) [C10M 101/00 (2013.01); C10M 117/00 (2013.01); C10M 119/24 (2013.01); C10M 133/12 (2013.01); C10M 135/10 (2013.01); C10M 135/18 (2013.01); C10M 137/105 (2013.01); C10M 141/10 (2013.01); C10M 145/16 (2013.01); C10M 161/00 (2013.01); C10M 2203/1006 (2013.01); C10M 2207/106 (2013.01); C10M 2209/0866 (2013.01); C10M 2215/26 (2013.01); C10M 2217/0456 (2013.01); C10M 2219/044 (2013.01); C10M 2219/068 (2013.01); C10M 2223/047 (2013.01); C10N 2020/02 (2013.01); C10N 2030/02 (2013.01); C10N 2030/06 (2013.01); C10N 2030/10 (2013.01); C10N 2030/12 (2013.01); C10N 2030/54 (2020.05); C10N 2040/02 (2013.01); C10N 2050/10 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A lubricating grease for electric vehicle applications comprising:
a thickener in a range of 6% by weight (wt. %) to 12 wt. %;
a lubricating oil consisting of synthetic oil selected from API (American Petroleum Institute) groups III and IV in a range of 57 wt. % to 92.98 wt. %;
a surface-active ester in a range of 8 wt. % to 10 wt. %, the surface-active ester comprising a synthetic copolymer of alpha-olefins and dicarboxylic acids esterified with short to medium chain alcohols comprising about 3 to 12 carbon atoms; and
an additive comprising:
a friction reducer and a modifier in a range of 0.1 wt. % to 5 wt. %;
an anti-wear agent in a range of 0.1 wt. % to 5 wt. %; and
an extreme pressure agent, an oxidation inhibitor, and a corrosion inhibitor,
wherein the lubricating grease is formulated to provide tribological protection for the electrical vehicle applications, and
wherein the surface-active ester is an oil with a carbon backbone with two distinct side chains, the first side chain is hydrophobic, and the second side chain is polar, and
wherein the lubricating oil has a bulk KV 100 of about 2 cSt or less than 2 cSt.