EP 1757673 B1 20200415 - LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINES
Title (en)
LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINES
Title (de)
SCHMIERMITTELZUSAMMENSETZUNG FÜR VERBRENNUNGSMOTOREN
Title (fr)
COMPOSITION LUBRIFIANTE POUR UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
EP 05255181 A 20050823
Abstract (en)
[origin: EP1757673A1] The present invention relates to a low phosphorus lubricating oil composition for internal combustion engines which demonstrates fuel economy benefits while also providing high temperature oxidation, piston deposits, and wear. The lubricating oil composition of the present invention comprises: a) major amount of a base oil of lubricating viscosity; b) from about 0.1 to 10 wt % of an overbased alkaline earth metal alkyl aryl sulfonate detergent having a total base number (TBN) of about 25 to 500; c) from about 0.02 to 10 wt % of a oxymolybdenum-containing complex; d) from about 0.1 to 5 wt % of a friction modifier; and e) from about 0.2 to 10 wt % of an antioxidant selected from the group consisting of a diphenylamine type, a sulfurized ester-containing compound and mixtures thereof; wherein the total concentration of the oxymolybdenum-containing complex and antioxidant must be at least 1.3 wt %, based on the total weight of the lubricating oil composition and wherein the phosphorus content of the total lubricating oil composition is 0.08 wt % or less, based on the total weight of the lubricating oil composition.
IPC 8 full level
C10M 163/00 (2006.01); C10M 169/04 (2006.01)
CPC (source: EP)
C10M 163/00 (2013.01); C10M 169/045 (2013.01); C10M 2207/289 (2013.01); C10M 2215/02 (2013.01); C10M 2215/064 (2013.01); C10M 2215/08 (2013.01); C10M 2215/086 (2013.01); C10M 2215/28 (2013.01); C10M 2217/043 (2013.01); C10M 2219/022 (2013.01); C10M 2219/024 (2013.01); C10M 2219/046 (2013.01); C10M 2219/066 (2013.01); C10M 2223/04 (2013.01); C10M 2223/043 (2013.01); C10M 2223/045 (2013.01); C10M 2223/047 (2013.01); C10M 2223/063 (2013.01); C10M 2223/08 (2013.01); C10M 2227/09 (2013.01); C10N 2010/04 (2013.01); C10N 2010/12 (2013.01); C10N 2030/06 (2013.01); C10N 2030/24 (2020.05); C10N 2060/10 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 05255181 A 20050823