Functional fluid

C - Chemistry – Metallurgy – 10 – M

Patent

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Details

C10M 163/00 (2006.01)

Patent

CA 2671911

The disclosed invention relates to a functional fluid comprising: at least one oil of lubricating viscosity; at least one detergent, the detergent contributing an amount of metal to the functional fluid equal to a concentration in the range from about 0.015 to about 1% by weight of the functional fluid, the detergent contributing an amount of basicity to the functional fluid equal to a total base number in the range from about 0.3 to about 2; and at least one friction modifier, the friction modifier comprising at least two hydrocarbyl groups attached to a polar group or atom (eg., a nitrogen atom).

L'invention concerne un liquide fonctionnel comportant au moins une huile de viscosité lubrifiante; au moins un détergent, le détergent contribuant à une quantité de métal au liquide fonctionnel égal à une concentration dans la fourchette d'environ 0,015 à environ 1 % en poids du liquide fonctionnel, le détergent contribuant à une quantité de basicité au liquide fonctionnel égale au nombre de base totale dans la fourchette d'environ 0,3 à environ 2; et au moins un modificateur de frottement, le modificateur de frottement comportant au moins deux groupes hydrocarbyle attachés à un groupe ou atome polaire (par exemple, un atome d'azote).

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