Fuel additive composition for improving delivery of friction modifier
AssigneeTexaco Inc.
InventorsThomas F. DeRosa, Benjamin J. Kaufman, Frank J. DeBlase, Thomas E. Hayden, Michael G. Rawdon, James R. Ketcham, Yvonne Thiel, Max R. Cesar
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Abstract
A fuel additive composition for improving the delivery of friction modifier to the lubricant oil of an internal combustion engine comprising (a) a friction modifying amount of a reaction product of at least one natural or synthetic oil and at least one alkanolamine; and, (b) at least one fuel detergent is provided. Also provided is a fuel composition containing the fuel additive composition and a method for operating an engine employing the fuel composition therefor.
Claims61
A fuel additive composition for improving the delivery of friction modifier to the lubricant of an internal combustion engine comprising:
- (a) a friction modifying amount of a reaction product of at least one natural or synthetic oil and at least one alkanolamine;
- and,
- (b) at least one fuel detergent effective to deliver the friction modifying amount of the reaction product of component (a) to the crankcase oil of the internal combustion engine, the fuel detergent being selected from the group consisting of Mannich base detergents, polyetheramines, polyolefin-amines, polyolefin-polyamines, polyolefin-phenol-polyamines, polyolefin succinimides and mixtures thereof.
A fuel composition comprising:
- (a) a major amount of an internal combustion engine fuel selected from the group consisting of gasoline, alcoholic fuels and mixtures thereof;
- and,
- (b) a minor effective amount of at lease one fuel additive composition comprising:
- (i) a friction modifying amount of a reaction product of at least one natural or synthetic oil and at least one alkanolamine;
- and
- (ii) at least one fuel detergent effective to deliver the friction modifying amount of the reaction product of component (i) to the crankcase oil of the internal combustion engine, the fuel detergent being selected from the group consisting of Mannich base detergents, polyetheramines, polyolefin-amines, polyolefin-polyamines, polyolefin-phenol-polyamines, polyolefin succinimides and mixtures thereof.
A method of operating an internal combustion engine which comprises operating the engine employing as a fuel therefor a fuel composition which comprises:
- (a) a major amount of an internal combustion engine fuel selected from the group consisting of gasoline, alcoholic fuels and mixtures thereof;
- and,
- (b) a minor effective amount of at least one fuel additive composition comprising:
- (i) a friction modifying amount of a reaction product of at least one natural or synthetic oil and an alkanolamine;
- and,
- (ii) at least one fuel detergent effective to deliver the friction modifying amount of the reaction product of component (i) to the crankcase oil of the internal combustion engine, the fuel detergent being selected from the group consisting of Mannich base detergents, polyetheramines, polyolefin-amines, polyolefin-polyamines, polyolefin-phenol-polyamines, polyolefin succinimides and mixtures thereof.
A method for reducing and/or preventing friction in the operation of an internal combustion engine which comprises fueling the engine with a fuel composition comprising (a) a major amount of an internal combustion engine fuel selected from the group consisting of gasoline, alcoholic fuels and mixtures thereof;
- and (b) a minor effective amount of a fuel additive composition comprising:
- (i) a friction modifying amount of a reaction product of at least one natural or synthetic oil and an alkanolamine;
- and,
- (ii) at least one fuel detergent effective to deliver the friction modifying amount of the reaction product of component (i) to the crankcase oil of the internal combustion engine, the fuel detergent being selected from the group consisting of Mannich base detergents, polyetheramines, polyolefin-amines, polyolefin-polyamines, polyolefin-phenol-polyamines, polyolefin succinimides and mixtures thereof.
Dependencies are inferred from the claim text.