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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.:

US 10119090 B1

PDFFull Text
Date of Patent:
Nov. 06, 2018

Filed:

Jun. 30, 2016

Composition and method for preventing or reducing engine knock and pre-ignition in high compression spark ignition engines

Applicant:

Exxonmobil Research and Engineering Company, Annandale, NJ (US);

Inventors:

Jason Z. Gao, Rose Valley, PA (US);

Eugine Choi, Marlton, NJ (US);

Matthew W. Boland, Philadelphia, PA (US);

Luca Salvi, Philadelphia, PA (US);

Assignee:

EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);

Attorney:

Robert A. Migliorini

Primary Examiner:

Cephia D Toomer

Int. Cl.
CPC ...
C10M 105/24 (2006.01); C10M 169/04 (2006.01); C10M 105/32 (2006.01); C10M 105/34 (2006.01); C10M 105/36 (2006.01); C10M 105/38 (2006.01); C10M 105/26 (2006.01);
U.S. Cl.
CPC ...
C10M 105/24 (2013.01); C10M 105/26 (2013.01); C10M 105/32 (2013.01); C10M 105/34 (2013.01); C10M 105/36 (2013.01); C10M 105/38 (2013.01); C10M 169/04 (2013.01); C10M 2207/1203 (2013.01); C10M 2207/2815 (2013.01); C10M 2207/2825 (2013.01); C10M 2207/2835 (2013.01); C10M 2215/02 (2013.01); C10M 2215/06 (2013.01); C10M 2215/064 (2013.01); C10M 2215/065 (2013.01); C10M 2217/00 (2013.01); C10M 2223/04 (2013.01); C10M 2223/043 (2013.01); C10M 2223/047 (2013.01); C10N 2220/028 (2013.01); C10N 2230/00 (2013.01); C10N 2230/06 (2013.01); C10N 2230/10 (2013.01); C10N 2230/45 (2013.01); C10N 2230/76 (2013.01); C10N 2240/10 (2013.01); C10N 2240/101 (2013.01); C10N 2240/104 (2013.01);
Abstract

A method for preventing or reducing engine knock or pre-ignition in a high compression spark ignition engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition that contains (i) a lubricating oil base stock comprising at least one ester including at least one group selected from the group consisting of Formula (1), Formula (2), and Formula (3): The lubricating oils of this disclosure are useful as passenger vehicle engine oil (PVEO) products.

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