MANUAL TRANSMISSION LUBRICANTS WITH IMPROVED SYNCHROMESH PERFORMANCE

A lubricant comprising (a) an oil of lubricating viscosity; and (b) an overbased, carbonated calcium arylsulfonate detergent having a total base number (TBN) of at least about 640 as calculated on an oil-free basis effectively lubricates the surfaces in the synchronizer of a manual transmission. La...

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Bibliographische Detailangaben
Hauptverfasser:	BROWN, GARETH, HUSTON, MICHAEL E, WALKER, GARY M, SEDDON, ELISA J, FRIEND, CHRISTOPHER L
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY FUELS LUBRICANTS LUBRICATING COMPOSITIONS 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
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Beschreibung
Zusammenfassung:	A lubricant comprising (a) an oil of lubricating viscosity; and (b) an overbased, carbonated calcium arylsulfonate detergent having a total base number (TBN) of at least about 640 as calculated on an oil-free basis effectively lubricates the surfaces in the synchronizer of a manual transmission. La présente invention concerne un lubrifiant comprenant (a) une huile de viscosité lubrifiante ; et (b) un détergent d'arylsulfonate de calcium carbonaté ayant un indice de base total (TBN) d'au moins environ 640 calculé sur une base sans huile qui lubrifie efficacement les surfaces dans le synchroniseur d'une transmission manuelle.