C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 163/00 (2006.01) C10M 137/02 (2006.01) C10M 137/10 (2006.01) C10M 159/20 (2006.01) C10M 159/22 (2006.01) C10M 159/24 (2006.01)
Patent
CA 2420099
This invention relates to a manual transmission lubricants comprising a major amount of an oil of lubricating viscosity: (A) at least one metal thiophosphate; (B) at least one phosphite; and (C) at least one basic salt of an acidic organic compound. In another embodiment, the manual transmission further comprises at least metal salt of a phenol. The lubricants provide the antiwear and extreme pressure protection needed for the manual transmission without harming the manual transmission components.
L'invention concerne des lubrifiants pour boîtes de vitesses manuelles qui contiennent une quantité importante d'une huile dont la viscosité est adaptée à la lubrification, (A) au moins un thiophosphate métallique, (B) au moins un phosphite et (C) au moins un sel basique d'un composé organique acide. Dans un autre mode de réalisation, les lubrifiants pour boîtes de vitesses automatiques comprennent également au moins un sel métallique d'un phénol. Ces lubrifiants offrent la protection anti-usure et contre les pressions extrêmes requise pour les boîtes de vitesses manuelles, cela sans que les composants d'une telle boîte en souffrent.
Ridout & Maybee Llp
The Lubrizol Corporation
LandOfFree
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