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:
Jun. 15, 2021
Filed:
Apr. 29, 2014
Applicant:
Infineum International Limited, Abingdon, GB;
Inventors:
Andrew J. D. Ritchie, Chatham, NJ (US);
Doyle Boese, Plainfield, NJ (US);
Jose A. Gutierrez, Fanwood, NJ (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 171/00 (2006.01); C10M 169/04 (2006.01); C10N 10/04 (2006.01); C10N 10/12 (2006.01); C10N 30/00 (2006.01); C10N 40/25 (2006.01);
U.S. Cl.
CPC ...
C10M 171/00 (2013.01); C10M 169/04 (2013.01); C10M 2201/05 (2013.01); C10M 2201/084 (2013.01); C10M 2207/023 (2013.01); C10M 2207/028 (2013.01); C10M 2207/141 (2013.01); C10M 2207/142 (2013.01); C10M 2207/144 (2013.01); C10M 2207/262 (2013.01); C10M 2219/044 (2013.01); C10M 2219/046 (2013.01); C10M 2223/045 (2013.01); C10N 2010/04 (2013.01); C10N 2010/12 (2013.01); C10N 2030/00 (2013.01); C10N 2030/45 (2020.05); C10N 2040/25 (2013.01); C10N 2040/255 (2020.05);
Abstract
A method of preventing or reducing the occurrence of Low Speed Pre-Ignition (LSPI) in a direct-injected, boosted, spark-ignited internal combustion engine that, in operation, generates a break mean effective pressure level of greater than about 15 bar, at an engine speed of from about 1500 to about 2500 rotations per minute (rpm), in which the crankcase of the engine is lubricated with a lubricating oil composition containing at least about 0.2 mass % of magnesium sulfated ash.