IP Library › Granted Patent US 11,473,029
Granted Patent B2
US 11,473,029 · App. 16/343,205 · Granted Oct 18, 2022

Composition for an electric vehicle

Inventors: Didier Martin (St Laurent d'Agny, FR); Philippe China (Seyssuel, FR)
Assignee: TOTAL MARKETING SERVICES
C10M107/34H01M10/613H01M10/625H01M10/6567C10M2205/0285C10M2207/28C10M2209/1033C10M2209/1045C10M2209/1055C10M2209/1065C10M2209/1075C10N2030/06C10N2040/14C10N2040/25H01M2220/20
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Quick Facts
Patent No.
US 11,473,029
App. No.
16/343,205
Granted
Oct 18, 2022
Kind
B2
Abstract

The use of a lubricant composition in order to cool and/or lubricate the engine of an electric vehicle and the different parts thereof, particularly moving parts, is disclosed. In particular, the use of a lubricant composition includes at least one polyalkylene glycol.

Claims (14)

1. A method for cooling one or more components of an electric vehicle, said components comprising an engine, power electronics, a rotor, a stator of the engine, or a battery, said method comprising:

cooling the one or more components of the electrical vehicle with a composition comprising at least one polyalkylene glycol (PAG) obtained by polymerisation of butylene oxide or by copolymerisation of ethylene oxide and propylene oxide, wherein the lubricant composition comprises 50 to 99% of PAG by weight with respect to the total weight of the composition,

wherein the electric vehicle comprises an electric engine as a single drive.

2. The method according to claim 1 , comprising:

cooling and lubricating the engine.

3. The method according to claim 1 , comprising:

cooling the engine and lubricating the transmission.

4. The method according to claim 1 , wherein the lubricant composition comprises 70 to 99% of PAG by weight with respect to the total weight of the composition.

5. A method for lubricating one or more components of an electric vehicle, said components comprising an engine, bearings located between a rotor and a stator, a reduction gear of the engine, or a transmission, said method comprising:

lubricating the one or more components of the electric vehicle with a composition comprising at least one polyalkylene glycol (PAG) obtained by polymerisation of butylene oxide or by copolymerisation of ethylene oxide and propylene oxide, wherein the lubricant composition comprises 50 to 99% of PAG by weight with respect to the total weight of the composition,

wherein the electric vehicle comprises an electric engine as a single drive.

6. A method for cooling a battery of an electric vehicle, said method comprising:

cooling the battery of the electrical vehicle with a composition comprising at least one polyalkylene glycol (PAG) obtained by polymerisation of butylene oxide or by copolymerisation of ethylene oxide and propylene oxide, wherein the lubricant composition comprises 50 to 99% of PAG by weight with respect to the total weight of the composition,

wherein the electric vehicle comprises an electric engine as a single drive.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE THE NAME OF THE ASSIGNEE PREVIOUSLY RECORDED AT REEL: 67096 FRAME: 320. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jun 26, 2024
From: TOTALENERGIES MARKETING SERVICES (PREVIOUSLY TOTAL MARKETING SERVICES)
To: TOTALENERGIES ONETECH
Reel/Frame 067845/0906 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 12, 2024
From: TOTALENERGIES MARKETING SERVICES (PREVIOUSLY TOTAL MARKETING SERVICES)
To: TOTALENERGIES ONETECH (PREVIOUSLY TOTALENERGIES ONE TECH)
Reel/Frame 067096/0320 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2019
From: MARTIN, DIDIER; CHINA, PHILIPPE
To: TOTAL MARKETING SERVICES
Reel/Frame 049483/0862 →