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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 9528060 B1

PDFFull Text
Date of Patent:
Dec. 27, 2016

Filed:

Mar. 08, 2012

System oil composition for crosshead diesel engine

Applicants:

Shigeki Takeshima, Chigasaki, JP;

Naozumi Arimoto, Yokohama, JP;

Inventors:

Shigeki Takeshima, Chigasaki, JP;

Naozumi Arimoto, Yokohama, JP;

Assignee:

JX Nippon Oil & Energy Corporation, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Pamela H Weiss

Int. Cl.
CPC ...
C10M 171/00 (2006.01); C10M 171/02 (2006.01); C10M 101/00 (2006.01); C10L 1/26 (2006.01); C10M 169/04 (2006.01); C10L 1/04 (2006.01); C10L 1/16 (2006.01); C10L 10/00 (2006.01);
U.S. Cl.
CPC ...
C10L 1/265 (2013.01); C10L 1/04 (2013.01); C10L 1/1625 (2013.01); C10L 10/00 (2013.01); C10M 169/048 (2013.01); C10M 171/02 (2013.01); C10M 2203/1025 (2013.01); C10M 2205/024 (2013.01); C10M 2205/026 (2013.01); C10M 2205/028 (2013.01); C10M 2205/0285 (2013.01); C10M 2205/04 (2013.01); C10M 2205/06 (2013.01); C10M 2207/028 (2013.01); C10M 2207/262 (2013.01); C10M 2209/084 (2013.01); C10M 2223/045 (2013.01); C10M 2229/041 (2013.01); C10N 2220/022 (2013.01); C10N 2220/029 (2013.01); C10N 2220/033 (2013.01); C10N 2230/02 (2013.01); C10N 2230/06 (2013.01); C10N 2230/08 (2013.01); C10N 2230/54 (2013.01); C10N 2230/68 (2013.01); C10N 2240/102 (2013.01);
Abstract

The present invention relates to a system oil composition for crosshead diesel engines, the system oil composition having excellent heat resistance and being effective for improvement of fuel efficiency. More specifically, the present invention relates to a system oil composition for crosshead diesel engines in which the system oil composition includes a mineral oil and/or a synthetic oil as a base oil (A) and has a kinematic viscosity of at least 35 mm/s at 50° C., a high-shear viscosity of at most 45 mPa·s at 50° C., and a high-shear viscosity of at least 15 mPa·s at 70° C.

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