Invention Grant
- Patent Title: Antifoam agent and method for use in automatic transmission fluid applications involving high pressure pumps
- Patent Title (中): 消泡剂和用于涉及高压泵的自动变速箱油应用的方法
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Application No.: US10365582Application Date: 2003-02-12
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Publication No.: US07060662B2Publication Date: 2006-06-13
- Inventor: Robert A. Muchmore , Reuben Sarkar , Anthony J. Rollin , Samuel H. Tersigni , Marc Deweerdt , Stede Granger
- Applicant: Robert A. Muchmore , Reuben Sarkar , Anthony J. Rollin , Samuel H. Tersigni , Marc Deweerdt , Stede Granger
- Applicant Address: US VA Richmond
- Assignee: Afton Chemical Corporation
- Current Assignee: Afton Chemical Corporation
- Current Assignee Address: US VA Richmond
- Agent Leah Oubre Robinson; Dennis H. Rainear
- Main IPC: C10M139/00
- IPC: C10M139/00 ; C10M161/00

Abstract:
The present invention relates to the use of a high level of a silicon-containing antifoam agent in automatic transmission fluid (“ATF”) applications. More specifically, the invention relates to a formulation and method for the reduction or elimination of pump whine that occurs in high-pressure pumps used to circulate transmissions fluids in vehicles. The invention also relates to fully formulated ATFs, to transmissions lubricated with such ATFs, and to vehicles containing transmissions lubricated with such ATFs.
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