Andrew Ritchie - Chatham NJ, US Jai Bansal - Westfield NJ, US Jacob Emert - Brooklyn NY, US Glen Fetterman - Morris Plains NJ, US Antonio Gutierrez - Mercerville NJ, US Matthew Irving - Fairford, GB Christopher Locke - Wantage, GB Michael Minotti - Summit NJ, US
International Classification:
F02M025/07
US Classification:
123/568120, 123/19600R
Abstract:
Soot induced kinematic viscosity increase of lubricating oil compositions for heavy duty diesel engines equipped with EGR systems operating in a condensing mode can be ameliorated by selection of viscosity modifier, lubricating oil flow improvers, detergents and dispersants.
Andrew Ritchie - Chatham NJ, US Jai Bansal - Westfield NJ, US Jacob Emert - Brooklyn NY, US Glen Fetterman - Morris Plains NJ, US Antonio Gutierrez - Mercerville NJ, US Matthew Irving - Fairford, GB Christopher Locke - Wantage, GB Michael Minotti - Summit NJ, US
Soot induced kinematic viscosity increase of lubricating oil compositions for diesel engines equipped with EGR systems can be ameliorated by selection of viscosity modifier, lubricating oil flow improvers, detergents and/or dispersants.
Andrew Ritchie - Chatham NJ, US Jai Bansal - Westfield NJ, US Jacob Emert - Brooklyn NY, US Glen Fetterman - Morris Plains NJ, US Antonio Gutierrez - Mercerville NJ, US Matthew Irving - Fairford, GB Christopher Locke - Wantage, GB Michael Minotti - Summit NJ, US
International Classification:
C10M133/00
US Classification:
508545000
Abstract:
Soot induced kinematic viscosity increase of lubricating oil compositions for diesel engines equipped with EGR systems can be ameliorated by selection of viscosity modifier, lubricating oil flow improvers, detergents and/or dispersants.
Lubricant Compositions For Internal Combustion Engines
Glen P. Fetterman - Morris Plains NJ Alan A. Schetelich - Scotch Plains NJ
Assignee:
Exxon Chemical Patents Inc. - Linden NJ
International Classification:
C10M10504 C10M11102
US Classification:
252 327E
Abstract:
In accordance with the present invention, there are provided low sulfated ash lubricating oil compositions which copmrise an oil of lubricating viscosity as the major component and as the minor component (A) at least about 3 wt % of at least one ashless nitrogen- or ester-containing dispersant, (B) at least about 2 wt % of at least one sulfurized alkyl phenol, and (C) at least one metal dihydrocarbyl dithiophosphate wherein the hydrocarbyl groups contain an average of at least 6 carbon atoms, and wherein the lubricating oil is characterized by a total sulfated ash (SASH) level of from 0. 01 to about 0. 6 wt % and by a SASH:dispersant wt:wt ratio of from about 0. 01 to about 0. 2:1.
Low Ash Lubricant Compositions For Internal Combustion Engines (Pt-727)
Glen P. Fetterman - Morris Plains NJ Alan A. Schetelich - Scotch Plains NJ
Assignee:
Exxon Chemical Patents Inc. - Linden NJ
International Classification:
C10M16100 C10M14508
US Classification:
252 327E
Abstract:
In accordance with the present invention, there are provided low sulfacted ash lubricating oil compositions which comprise an oil of lubricating viscosity as the major component and as the minor component (A) at least about 2 wt % of at least one ashless nitrogen- or ester-containing dispersant, (B) an antioxidant effective amount of at least one oil soluble antioxidant material, and (C) at least one oil soluble dihydrocarbyl dithiophosphate antiwear material wherein the hydrocarbyl groups contain an average of at least 3 carbon atoms, and wherein the lubricating oil is characterized by a total sulfated ash (SASH) level of from 0. 01 to about 0. 6 wt % and by a SASH wt:dispersant wt ratio of from about 0. 01 to about 0. 2:1.
Low Ash Lubricant Compositions For Internal Combustion Engines
Glen P. Fetterman - Morris Plains NJ Alan A. Schetelich - Scotch Plains NJ
Assignee:
Exxon Chemical Patents Inc. - Linden NJ
International Classification:
C10M16100 C10M14508
US Classification:
252 327E
Abstract:
In accordance with the present invention, there are provided low sulfated ash lubricating oil compositions which comprise an oil of lubricating viscosity as the major component and as the minor component (A) at least about 2 wt % of at least one ashless nitrogen- or ester-containing dispersant, (B) an antioxidant effective amount of at least one oil soluble antioxidant material, and (C) at least one oil soluble dihydrocarbyl dithiophosphate antiwear material wherein the hydrocarbyl groups contain an average of at least 3 carbon atoms, and wherein the lubricating oil is characterized by a total sulfated ash (SASH) level of from 0. 01 to about 0. 6 wt % and by a SASH wt:dispersant wt ratio of from about 0. 01 to about 0. 2:1.