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:
Sep. 13, 2011
Filed:
Feb. 12, 2007
Applicants:
Christopher J. Locke, Wantage, GB;
Angela J. Keeney, Iffley Village, GB;
Inventors:
Christopher J. Locke, Wantage, GB;
Angela J. Keeney, Iffley Village, GB;
Assignee:
Infineum International Limited, Oxfordshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 163/00 (2006.01); C10M 169/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Intake valve deposits in a direct injection internal combustion engine are reduced by lubricating the engine with a lubricant that is substantially free of ashless organic friction modifiers and whose base oil has a Noack volatility of less than 12 mass %.