EV Engineering News

Idemitsu develops cooling and lubrication oil for EVs 

Idemitsu Kosan, a Japanese energy company, has developed an oil for e-axle drive units, electronics and battery systems in EVs and hybrids.

The E-axle and Electric Parts Cooling Oil allows direct cooling of motors and other electronics such as the battery and power control unit (PCU), and enables lubrication of gears and bearings in an e-axle drive unit. The company plans to sell the oil to automobile manufacturers and Tier 1 suppliers in Japan and overseas.

An e-axle includes an electric motor, an inverter and gearbox. Idemitsu Kosan has also developed Idemitsu Nanourea, a lubricant for motor spindles, hubs and ball joint bearings, and Idemitsu Original Shock Absorber Fluid for shock absorbers.

The Idemitsu E-Axle Fluid series of e-Axle oils currently being developed also includes the E-Axle Fluid Type G-LV for speed reducers; E-Axle Fluid TypeC-MV and E-Axle Fluid TypeC-FE for both motor cooling and gear lubrication; and E-Axle Fluid TypeC-MV for motor material compatibility. Idemitsu Kosan has also introduced the Daphne Hermetic Oil Series, which is compatible with a variety of AC refrigerants and systems.

“Simplifying vehicle constructions is key to optimizing the performance of EVs and HEVs,” the company said. “Using one fluid to cool and lubricate the e-axle, electronics and battery simplifies the cooling system.”

Source: Idemitsu Kosan

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