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.
BANSAL JAI G
EMERT JACOB
FETTERMAN GLEN P
GUTIERREZ ANTONIO
IRVING MATTHEW D
LOCKE CHRISTOPHER J
MINOTTI MICHAEL T
JP2000063876A | 2000-02-29 | |||
JPH10102082A | 1998-04-21 | |||
JPH05239485A | 1993-09-17 | |||
JPH06271885A | 1994-09-27 | |||
JP2001348591A | 2001-12-18 | |||
JPH09111275A | 1997-04-28 | |||
JP2004107645A | 2004-04-08 | |||
JP5351091B2 | 2013-11-27 | |||
JP2000063876A | 2000-02-29 | |||
JPH10102082A | 1998-04-21 | |||
JPH05239485A | 1993-09-17 | |||
JPH06271885A | 1994-09-27 | |||
JP2001348591A | 2001-12-18 | |||
JPH09111275A | 1997-04-28 | |||
JP2004107645A | 2004-04-08 |
Fumiaki Otsuka
Sadao Kumakura
Takaki Nishijima
Atsushi Hakoda