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Title: Gear and engine oils with reduced surface tension

Abstract

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.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Imperial Innovations Ltd., London (Great Britain); Valvoline Licensing and Intellectual Property LLC, Lexington, KY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568478
Patent Number(s):
10323207
Application Number:
14/548,850
Assignee:
Imperial Innovations Limited (London, GB); Valvoline Licensing and Intellectual Property, LLC (Lexington, KY)
Patent Classifications (CPCs):
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10N - INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10M - LUBRICATING COMPOSITIONS
DOE Contract Number:  
EE0006427
Resource Type:
Patent
Resource Relation:
Patent File Date: 11/20/2014
Country of Publication:
United States
Language:
English

Citation Formats

Kolekar, Anant S., Olver, Andrew V., Sworski, Adam E., Lockwood, Frances E., Wu, Gefei, and Cheng, Xiurong. Gear and engine oils with reduced surface tension. United States: N. p., 2019. Web.
Kolekar, Anant S., Olver, Andrew V., Sworski, Adam E., Lockwood, Frances E., Wu, Gefei, & Cheng, Xiurong. Gear and engine oils with reduced surface tension. United States.
Kolekar, Anant S., Olver, Andrew V., Sworski, Adam E., Lockwood, Frances E., Wu, Gefei, and Cheng, Xiurong. Tue . "Gear and engine oils with reduced surface tension". United States. https://www.osti.gov/servlets/purl/1568478.
@article{osti_1568478,
title = {Gear and engine oils with reduced surface tension},
author = {Kolekar, Anant S. and Olver, Andrew V. and Sworski, Adam E. and Lockwood, Frances E. and Wu, Gefei and Cheng, Xiurong},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {6}
}

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Works referenced in this record:

Power steering fluid additive
patent, January 2003


Liquid compositions
patent, December 1996


Polyolefinic copolymer additives for lubricants and fuels
patent, July 1979


Traction fluid formulation
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Method of operating a wormgear drive at high energy efficiency
patent, May 2006


Lubricating fluids with low traction characteristics
patent, June 2010


Gear oil composition containing nanomaterial
patent, November 2008


Lubricant reservoir for gas bearing
patent, October 2005


Gear lubricant with a base oil having a low traction coefficient
patent, September 2008