Lubricating oil composition for continuously variable transmission
AssigneeTonen General Sekiyu K.K.
InventorsTakehisa Sato, Takanori Kugimiya
Life of this patent
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Abstract
To provide a lubricating oil composition for continuously variable transmission which ensures both a high coefficient of friction between metals required for a push belt-type CTV oil and excellent oxidation stability guaranteeing the performance over a long time. A lubricating oil composition for continuously variable transmission is provided, which comprises a lubricating base oil made of a mineral oil and/or a synthetic oil formulated with a wear preventive a metal detergent and an ashless dispersant, wherein the ashless dispersant is made of a boron-containing succinimide having boron at a rate of one or more atoms in one molecule of the ashless dispersant.
Claims5
A lubricating oil composition for continuously variable transmission of the type which comprises a lubricating base oil made of a mineral oil and/or a synthetic oil formulated with a wear preventive, a metal detergent and an ashless dispersant characterized in that said ashless dispersant consists of an succinimide having boron at a rate of three or more atoms in one molecule of the ashless dispersant.
A method for enhancing wear prevention in a continuously variable transmission by providing thereto a lubricating oil composition comprising a lubricating base oil formulated with a wear preventive, a metal detergent and an ashless dispersant characterized in that said ashless dispersant consists of an succinimide having boron at a rate of three or more atoms in one molecule of the ashless dispersant.
Dependencies are inferred from the claim text.