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Boron Additives for Improved Anti-Pitting in Automatic Transmissions

IP.com Disclosure Number: IPCOM000020407D
Publication Date: 2003-Nov-20

Publishing Venue

The IP.com Prior Art Database

Related People

Authors:
William C. Ward, Jr.
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Abstract

Boron-containing formulations suitable for use as fluids for automatic transmissions, including continuously variable transmissions, provide improved gear pitting, friction, and antiwear performance. The use of a high level of boron effectively improves the gear pitting characteristics while maintaining high static and dynamic clutch coefficients of friction and metal-on-metal friction, compared with formulations using traditional alkenyl succinimide dispersants. The formulations also show excellent response with an optimum low treatment of phosphorus extreme pressure/anti-wear compounds.