COMPOSICAO DE OLEO LUBRIFICANTE COM BAIXO TEOR DE CINZA SULFATADA,CONCENTRADO PARA EMBALAGEM DE ADITIVO,PROCESSO PARA APERFEICOAR O DESEMPENHO DE UM OLEO LUBRIFICANTE PARA MOTOR A DIESEL DE CARGA PESADA,PARA PREPARAR O OLEO LUBRIFICANTE E APERFEICOAMENTO EM UM MOTOR A DIESEL PROVIDO COM CARTER COM OLEO LUBRIFICANTE

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 3 wt% of at least one ashless nitrogen- or ester-containing dispersant, (B) a...

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Bibliographische Detailangaben
Hauptverfasser:	ALAIN ALVIN SCHETELICH, GLEN PAUL FETTERMAN, JR
Format:	Patent
Sprache:	por
Schlagworte:	ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING CHEMISTRY COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES FUELS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING LUBRICANTS LUBRICATING COMPOSITIONS MECHANICAL ENGINEERING METALLURGY PEAT PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MONOXIDE USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION WEAPONS
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Beschreibung
Zusammenfassung:	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 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.