Gear and engine oils with reduced surface tension

Patent · 18 June 2019

OSTI ID:1568478

Kolekar, Anant S.; Olver, Andrew V.; Sworski, Adam E.; Lockwood, Frances E.; Wu, Gefei; Cheng, Xiurong

A gear or engine oil or other type of lubricant, which effectively reduces churning losses in a dip lubrication system or any lubrication system where churning loss occur has a surface tension less than 28 mN/m and viscosity less than 400 mPa-sec at 25° C. (about 500 cSt at 25° C.). Formulations include Group I-IV base oil, in combination with an amount of silicone oil effective to decrease the surface tension of the oil, thereby reducing churning losses. When the base oil is prominently Group III, the coefficient of friction of the gear oil is also reduced.

• Research Organization: Imperial Innovations Ltd., London (Great Britain); Valvoline Licensing and Intellectual Property LLC, Lexington, KY (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: EE0006427
• Assignee: Imperial Innovations Limited (London, GB); Valvoline Licensing and Intellectual Property, LLC (Lexington, KY)
• Patent Number(s): 10,323,207
• Application Number: 14/548,850
• OSTI ID: 1568478
• Country of Publication: United States
• Language: English