EP 1240282 A1 20020918 - LUBRICANTS CONTAINING A BIMETALLIC DETERGENT SYSTEM AND A METHOD OF REDUCING NO x? EMISSIONS EMPLOYING SAME
Title (en)
LUBRICANTS CONTAINING A BIMETALLIC DETERGENT SYSTEM AND A METHOD OF REDUCING NO x? EMISSIONS EMPLOYING SAME
Title (de)
SCHMIERMITTEL ENTHALTEND EIN BIMETALLISCHES DETERGENZ-SYSTEM UND DIESES VERWENDENDE VERFAHREN ZUR REDUZIERUNG VON NOX EMISSIONEN
Title (fr)
LUBRIFIANTS CONTENANT UN SYSTEME DETERGENT BIMETALLIQUE ET PROCEDE PERMETTANT DE REDUIRE LES EMISSIONS D'OXYDE D'AZOTE (NO x?)
Publication
Application
Priority
- US 0033703 W 20001213
- US 17091099 P 19991215
Abstract (en)
[origin: WO0144419A1] A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and an additive system comprising (A) from about 0.1 to about 5 % by weight of a detergent composition comprising at least two metal overbased compositions wherein said detergent composition consists essentially of (A-1) at least one alkali metal overbased detergent and (A-2) at least one calcium overbased detergent, wherein the ratio of total base number on a per 100 TBN and diluent-free basis contributed by the alkali metal detergent to the total base number contributed by the calcium detergent ranges from about 99.5-20 to about 0.5-80; (B) from about 1 to about 10 % by weight of a succinimide dispersant; and (C) from about 0.1 to about 5 % by weight of a metal dihydrocarbyl dithiophosphate of the formula (I) wherein R<1> and R<2> are each, independently, hydrocarbyl groups containing from 3 to 13 carbon atoms, M is a metal and n is an integer equal to the valence of M. Also disclosed a re methods for cleaning the combustion chamber of internal combustion engines, a method for reducing fuel consumption of internal combustion engines and a method for reducing NOx emissions of internal combustion engines.
IPC 1-7
IPC 8 full level
C10M 133/56 (2006.01); C10M 137/10 (2006.01); C10M 159/20 (2006.01); C10M 159/22 (2006.01); C10M 159/24 (2006.01); C10M 163/00 (2006.01); C10M 167/00 (2006.01); C10M 169/04 (2006.01); C10N 10/02 (2006.01); C10N 10/04 (2006.01); C10N 10/06 (2006.01); C10N 10/08 (2006.01); C10N 10/12 (2006.01); C10N 10/14 (2006.01); C10N 10/16 (2006.01); C10N 20/00 (2006.01); C10N 30/00 (2006.01); C10N 30/02 (2006.01); C10N 40/25 (2006.01)
CPC (source: EP)
C10M 133/52 (2013.01); C10M 133/56 (2013.01); C10M 137/10 (2013.01); C10M 143/00 (2013.01); C10M 145/04 (2013.01); C10M 145/14 (2013.01); C10M 159/20 (2013.01); C10M 159/22 (2013.01); C10M 159/24 (2013.01); C10M 163/00 (2013.01); C10M 167/00 (2013.01); C10M 2205/00 (2013.01); C10M 2205/02 (2013.01); C10M 2207/026 (2013.01); C10M 2207/028 (2013.01); C10M 2207/123 (2013.01); C10M 2207/125 (2013.01); C10M 2207/129 (2013.01); C10M 2207/22 (2013.01); C10M 2207/26 (2013.01); C10M 2207/262 (2013.01); C10M 2209/04 (2013.01); C10M 2209/084 (2013.01); C10M 2215/04 (2013.01); C10M 2215/064 (2013.01); C10M 2215/086 (2013.01); C10M 2215/24 (2013.01); C10M 2215/26 (2013.01); C10M 2215/28 (2013.01); C10M 2217/046 (2013.01); C10M 2217/06 (2013.01); C10M 2219/022 (2013.01); C10M 2219/046 (2013.01); C10M 2219/087 (2013.01); C10M 2219/088 (2013.01); C10M 2219/089 (2013.01); C10M 2223/045 (2013.01); C10M 2229/02 (2013.01); C10M 2229/05 (2013.01); C10N 2010/00 (2013.01); C10N 2010/02 (2013.01); C10N 2010/04 (2013.01); C10N 2040/25 (2013.01); C10N 2040/251 (2020.05); C10N 2040/255 (2020.05); C10N 2040/28 (2013.01); C10N 2070/02 (2020.05)
Citation (search report)
See references of WO 0144419A1
Citation (examination)
US 5562864 A 19961008 - SALOMON MARY F [US], et al
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 0144419 A1 20010621; WO 0144419 A8 20040422; AU 2259401 A 20010625; AU 778615 B2 20041216; CA 2394289 A1 20010621; CA 2394289 C 20091020; EP 1240282 A1 20020918; JP 2003517094 A 20030520; JP 2013234337 A 20131121
DOCDB simple family (application)
US 0033703 W 20001213; AU 2259401 A 20001213; CA 2394289 A 20001213; EP 00986338 A 20001213; JP 2001545497 A 20001215; JP 2013175254 A 20130827