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:
Mar. 16, 2021
Filed:
Nov. 20, 2014
Exxonmobil Research and Engineering Company, Annandale, NJ (US);
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Ko Onodera, Kawasaki, JP;
Shuzo Nemoto, Kawasaki, JP;
Tomohiro Kato, Kawasaki, JP;
Kosuke Fujimoto, Toyota, JP;
Minoru Yamashita, Okazaki, JP;
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A lubricating oil composition which can reduce the occurrence frequency of LSPI and which can ensure detergency. The lubricating oil composition which includes a lubricant base oil, a compound having calcium and/or magnesium, a compound having molybdenum and/or phosphorus, and an ashless dispersant having nitrogen and which satisfies X≤−0.85 and Y≥0.18 (wherein X is calculated according to formula (1): X=([Ca]+0.5[Mg])×8−[Mo]×8−[P]×30 and Y is calculated according to formula (2): Y=[Ca]+1.65[Mg]+[N]). The lubricating oil composition for use in an internal combustion engine, more particularly, a lubricating oil composition for use in a supercharged gasoline engine.