Lubricating oil and fuel compositions
AssigneeEdwin Cooper, Inc.
InventorsAndrew G. Papay, Joseph P. O'Brien
Life of this patent
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Abstract
Engine friction of internal combustion engines is reduced by adding to the lubricating oil or fuel used in such engine a small friction-reducing amount of an aliphatic hydrocarbylsulfonylalkanol or aliphatic hydrocarbylsulfinylalkanol resulting in improved fuel economy.
Claims22
In a lubricating oil composition formulated for use in the crankcase of an internal combustion engine, said composition comprising a major amount of an oil of lubricating viscosity, the improvement of including in the composition a friction-reducing amount of an additive having the structure:
- ##STR3## wherein R.sub.1 is an aliphatic hydrocarbon group containing about 12-36 carbon atoms, R.sub.2 is a divalent saturated aliphatic hydrocarbon group containing 1 to about 4 carbon atoms and p is 0 or 1, said improvement resulting in increased fuel economy.
A liquid hydrocarbon fuel suitable for use in internal combustion engines containing a minor friction-reducing amount of an additive selected from the group consisting of fuel-soluble aliphatic hydrocarbylsulfonylalkanols, said additive having the structure:
- ##STR4## wherein R.sub.1 is an aliphatic hydrocarbon group containing about 12-36 carbon atoms, R.sub.2 is a divalent aliphatic hydrocarbon group containing 1 to about 4 carbon atoms and p is 1.
Dependencies are inferred from the claim text.