EP 1558715 B1 20121226 - Use of Lubricating Oil for Reducing Fuel Consumption
Title (en)
Use of Lubricating Oil for Reducing Fuel Consumption
Title (de)
Verwendung Schmieröls zur Reduzierung des Kraftstoffverbrauchs
Title (fr)
L'utilisé d'huile lubrificante pour réduire la consommation de carburante
Publication
Application
Priority
- EP 0311419 W 20031015
- IT MI20022322 A 20021031
Abstract (en)
[origin: WO2004039928A1] Lubricating compositions are described, which are capable of guaranteeing an improvement in the fuel economy performances of internal combustion engines, also without resorting to specific additives conventionally known as friction modifiers or reducers. The above compositions envisage the presence of particular deterging additives selected from the group of sulfophenates and particular anti-wear additives having the general formula ZnP2S4O4R4. The above lubricating compositions have been conventionally identified on the basis of friction coefficient measurements under suitable kinematic conditions which are such as to reproduce "hydrodynamic", "elasto-hydrodynamic, "mixed" and "boundary" lubrication situations. The efficacy of the compositions of the present invention in terms of fuel economy has been demonstrated by engine tests according to engine oil qualification standards.
IPC 8 full level
C10M 169/04 (2006.01); C10M 157/00 (2006.01); C10M 157/08 (2006.01); C10M 101/02 (2006.01); C10M 107/02 (2006.01); C10M 129/76 (2006.01); C10M 135/18 (2006.01); C10M 135/30 (2006.01); C10M 137/10 (2006.01); C10M 159/18 (2006.01); C10M 159/20 (2006.01); C10M 159/22 (2006.01); C10M 159/24 (2006.01); C10N 30/06 (2006.01); C10N 40/25 (2006.01)
CPC (source: EP)
C10M 157/00 (2013.01); C10M 169/045 (2013.01); C10M 2203/1025 (2013.01); C10M 2205/0206 (2013.01); C10M 2207/262 (2013.01); C10M 2207/289 (2013.01); C10M 2219/046 (2013.01); C10M 2219/068 (2013.01); C10M 2219/089 (2013.01); C10M 2223/045 (2013.01); C10N 2010/04 (2013.01); C10N 2010/12 (2013.01); C10N 2020/02 (2013.01); C10N 2030/06 (2013.01); C10N 2040/252 (2020.05); C10N 2040/255 (2020.05)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 2004039928 A1 20040513; AU 2003268940 A1 20040525; AU 2003268940 A8 20040525; EP 1558715 A1 20050803; EP 1558715 B1 20121226; IT MI20022322 A1 20040501
DOCDB simple family (application)
EP 0311419 W 20031015; AU 2003268940 A 20031015; EP 03750716 A 20031015; IT MI20022322 A 20021031