Amino alkanediols and carboxylate salts as additives for improving fuel efficiency
AssigneesChevron U.S.A. Inc., Chevron Oronite Company LLC
InventorsTheresa Liang Gunawan, Richard Eugene Cherpeck, Amir Gamal Maria
Life of this patent
Estimating the term…
Abstract
Friction modifier and compositions containing the friction modifier as a fuel additive are provided. Methods for improving fuel efficiency using these compositions are also provided.
Claims31
A fuel composition comprising (1) greater than 50 wt. % of a hydrocarbon fuel boiling in gasoline or diesel range and (2) a minor amount of one or more primary or secondary amino alkanediol or an alkyl carboxylic acid salt of the primary or secondary amino alkanediol, wherein the one or more primary or secondary amino alkanediol contains a total of less than 12 carbon atoms.
A fuel composition comprising (1) greater than 50 wt. % of a hydrocarbon fuel boiling in the gasoline or diesel range and (2) a minor amount of an alkyl carboxylic acid salt of the primary or secondary amino alkanediol, wherein the primary or secondary amino alkanediol is
- wherein R1 is an H or an aliphatic group, wherein the primary or secondary amino alkanediol contains a total of less than 12 carbon atoms.
A method for improving fuel economy in an internal combustion engine, the method comprising supplying to the engine a fuel composition comprising (1) greater than 50 wt. % of a hydrocarbon fuel boiling in gasoline or diesel range and (2) a minor amount of one or more primary or secondary amino alkanediol or an alkyl carboxylic acid salt of the primary or secondary amino alkanediol, wherein the one or more primary or secondary amino alkanediol contains a total of less than 12 carbon atoms.
A lubricating oil composition comprising (1) greater than 50 wt. % of a base oil and (2) a minor amount of one or more primary or secondary amino alkanediol or an alkyl carboxylic acid salt of the primary or secondary amino alkanediol, wherein the one or more primary or secondary amino alkanediol contains a total of less than 12 carbon atoms.
A method of improving fuel efficiency of an internal combustion engine, the method comprising:
- supplying to the engine a lubricating oil composition comprising (1) greater than 50 wt. % of a base oil and (2) a minor amount of one or more primary or secondary amino alkanediol or an alkyl carboxylic acid salt of the primary or secondary amino alkanediol, wherein the one or more primary or secondary amino alkanediol contains a total of less than 12 carbon atoms.
Dependencies are inferred from the claim text.