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Title:
EGR-EQUIPPED DIESEL ENGINES AND LUBRICATING OIL COMPOSITIONS
Document Type and Number:
Japanese Patent JP2013173954
Kind Code:
A
Abstract:

To improve heavy duty diesel (HDD) engines provided with exhaust gas recirculation (EGR) systems.

A heavy duty diesel engine includes an exhaust gas recirculation (EGR) system in which intake air and/or exhaust gas recirculation streams are cooled to below the dew point for at least 10% of the time when the engine is in operation, the engine being lubricated with a lubricating oil composition comprising a major amount of oil of lubricating viscosity, and a minor amount of one or more high molecular weight polymers comprising: (i) copolymers of hydrogenated poly(monovinyl aromatic hydrocarbon) and poly (conjugated diene), wherein the hydrogenated poly(monovinyl aromatic hydrocarbon) segment comprises at least about 20% of the copolymer; (ii) specific olefin copolymers; and/or (iii) acrylate or alkylacrylate copolymer derivatives having dispersing groups.


Inventors:
RITCHIE ANDREW J D
BANSAL JAI G
EMERT JACOB
FETTERMAN GLEN P
GUTIERREZ ANTONIO
IRVING MATTHEW D
LOCKE CHRISTOPHER J
MINOTTI MICHAEL T
Application Number:
JP2013115996A
Publication Date:
September 05, 2013
Filing Date:
May 31, 2013
Export Citation:
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Assignee:
INFINEUM INT LTD
International Classes:
C10M169/04; F01M11/00; C10M101/02; C10M105/04; C10M105/36; C10M105/38; C10M107/08; C10M129/10; C10M129/18; C10M129/24; C10M129/32; C10M129/54; C10M129/70; C10M129/84; C10M129/95; C10M133/16; C10M133/54; C10M133/56; C10M133/58; C10M143/12; C10M145/14; C10M149/10; C10M149/14; C10M159/12; C10M159/20; C10M159/22; C10M159/24; C10M167/00; F02B47/08; C10N10/04; C10N20/02; C10N30/00; C10N30/04; C10N30/06; C10N30/10; C10N40/25; C10N60/00; C10N60/06; F02B3/06
Domestic Patent References:
JP2000063876A2000-02-29
JPH10102082A1998-04-21
JPH05239485A1993-09-17
JPH06271885A1994-09-27
JP2001348591A2001-12-18
JPH09111275A1997-04-28
JP2004107645A2004-04-08
JP5351091B22013-11-27
JP2000063876A2000-02-29
JPH10102082A1998-04-21
JPH05239485A1993-09-17
JPH06271885A1994-09-27
JP2001348591A2001-12-18
JPH09111275A1997-04-28
JP2004107645A2004-04-08
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Sadao Kumakura
Takaki Nishijima
Atsushi Hakoda