C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 137/14 (2006.01)
Patent
CA 2549269
The present invention is directed to a crankcase lubricating oil composition for protection of silver bearings in locomotive diesel engines comprising (A) a major amount of an oil of lubricating viscosity, and (B) a silver wear protection additive composition, and (C) one or more detergents. The silver wear protection additive composition of the present invention comprises a mixture of (i) a hydrocarbylamine salt of a di-alkyl di-thiophosphoric acid and (ii) a hydrocarbylamine salt of an alkyl acid phosphate.
Nelson Kenneth D.
Small Vernon R.
Tobias Melanie F.
Yamaguchi Elaine S.
Chevron Oronite Company Llc
Sim & Mcburney
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