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:
Dec. 13, 2011
Filed:
Jul. 10, 2007
Applicants:
Robin Howard Scott, Abingdon, GB;
Robert William Shaw, Abingdon, GB;
Inventors:
Robin Howard Scott, Abingdon, GB;
Robert William Shaw, Abingdon, GB;
Assignee:
Infineum International Limited, Oxfordshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 141/12 (2006.01); C10M 125/24 (2006.01); C10M 125/22 (2006.01); C10M 129/00 (2006.01); C10M 159/00 (2006.01); C10M 169/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lubricating oil composition for a heavy duty diesel engine comprises a base oil, at least 0.6 mass % of an ash-free antioxidant and an overbased magnesium-containing detergent. The detergent provides greater than 0.05 mass % Mg based on the mass of the composition. Bore polishing in the engine is reduced for a given level of exhaust gas ash production.