The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2022
Filed:
Jan. 31, 2019
Applicant:
Afton Chemical Corporation, Richmond, VA (US);
Inventors:
Charles Shanahan, Richmond, VA (US);
Michel Nuckols, Midlothian, VA (US);
Assignee:
Afton Chemical Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10L 1/04 (2006.01); C10L 1/232 (2006.01); C10L 10/06 (2006.01); F02B 47/04 (2006.01);
U.S. Cl.
CPC ...
C10L 1/232 (2013.01); C10L 10/06 (2013.01); F02B 47/04 (2013.01); C10L 2270/023 (2013.01); C10L 2300/20 (2013.01);
Abstract
The present disclosure relates to methods and fuel compositions for reducing or eliminating fuel injector deposits in high pressure gasoline engines. The fuel compositions include gasoline and a synergistic combination of a fuel injector clean-up mixture including a heterocyclic amine, diamine, or open chain derivative thereof and a hydrocarbyl substituted dicarboxylic anhydride derivative selected from a diamide, acid/amide, acid/ester, diacid, amide/ester, diester, and imide.