Abstract: An automotive axle includes a housing including gears and a bath lubricating the gears, the bath including gear oil and about 0.1 to 5 wt. % secondary alcohol ethoxylate based on total weight of the bath such that during automotive operation at temperatures less than a threshold, reverse micelles form to trap air bubbles in the bath, emulsifying the bath, and at temperatures greater than the threshold, the reverse micelles dissipate.
Type:
Grant
Filed:
January 8, 2019
Date of Patent:
March 7, 2023
Assignee:
Ford Global Technologies, LLC
Inventors:
Hiroko Ohtani, Kevin Richard John Ellwood, David Karl Bidner, Arup Kumar Gangopadhyay, Mathew John Fast, Phillip Bonkoski
Abstract: The present technology includes an extreme pressure additive package formulated with a biodegradable sulfur component, which additive package can achieve suitable extreme pressure performance when formulated into a fully formulated industrial gear oil lubricant.
Type:
Grant
Filed:
August 6, 2015
Date of Patent:
February 19, 2019
Assignee:
The Lubrizol Corporation
Inventors:
Shubhamita Basu, James N. Vinci, Michael S. Wragg
Abstract: The present invention provides a gear oil composition for vehicle driving systems, more specifically a gear oil composition for vehicle final reduction gears, which can improve a fuel-saving effect by reducing its viscosity and, at the same time, secure bearing fatigue life characteristics. The gear oil composition comprises a base oil (A) and another base oil (B), described below, and at least one species of additive for gear oil, and has a kinematic viscosity of 80 mm2/s or less at 40° C.: (A): a mineral-based oil and/or hydrocarbon-based synthetic oil having a kinematic viscosity of 3.5 to 7 mm2/s at 100° C., and (B): a mineral-based oil and/or hydrocarbon-based synthetic oil having a kinematic viscosity of 20 to 52 mm2/s at 100° C.
Type:
Grant
Filed:
July 25, 2006
Date of Patent:
March 20, 2012
Assignee:
ExxonMobil Research and Engineering Company