EP 1203804 A1 20020508 - Lubricant oil composition for diesel engines
Title (en)
Lubricant oil composition for diesel engines
Title (de)
Schmierölzusammensetzung für Dieselmotoren
Title (fr)
Compositions d'huile lubrifiante pour moteurs Diesel
Publication
Application
Priority
- EP 00124058 A 20001106
- CA 2314194 A 20000721
- JP 10079699 A 19990408
- SG 200004164 A 20000725
Abstract (en)
The present invention provides a lubricant oil composition, having enhanced wear-preventive characteristics for a diesel engine operating with large quantities of soot in the oil (soot content: 0.2 to 4.0 wt.%), and is especially suitable for a pressure-accumulating (common rail) type diesel engine equipped with an EGR system. The lubricant oil composition containing a base oil composed of a mineral and/or synthetic oil incorporated with at least three additives that are a sulfurized oxymolybdenum dithiocarbamate at 0.03 to 0.50 wt.% as Mo; a zinc dialkyl dithiophosphate at 0.04 to 0.50 wt.% as P; and at least one metallic salt of alkyl salicylate selected from the group consisting of a Ca salt of alkyl salicylate at 0.004 to 1.0 wt.% as Ca, Mg salt of alkyl salicylate at 0.002 to 0.60 wt.% as Mg, and Zn salt of alkyl salicylate at 0.006 to 1.60 wt.% as Zn, all percentages being based on the whole composition.
IPC 1-7
IPC 8 full level
C10M 169/04 (2006.01); C10M 141/10 (2006.01); C10M 163/00 (2006.01); C10N 10/04 (2006.01); C10N 10/12 (2006.01); C10N 30/06 (2006.01); C10N 40/25 (2006.01)
CPC (source: EP)
C10M 141/10 (2013.01); C10M 163/00 (2013.01); C10M 2207/144 (2013.01); C10M 2207/262 (2013.01); C10M 2219/068 (2013.01); C10M 2223/045 (2013.01); C10N 2010/04 (2013.01); C10N 2010/12 (2013.01); C10N 2030/06 (2013.01); C10N 2040/252 (2020.05)
Citation (search report)
- [X] US 5906969 A 19990525 - FYFE KIM ELIZABETH [CA]
- [X] US 5458807 A 19951017 - TAMOTO YOSHITAKA [JP]
- [A] US 4178258 A 19791211 - PAPAY ANDREW G [US], et al
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 1203804 A1 20020508; CA 2314194 A1 20020121; JP 2000290677 A 20001017; SG 87142 A1 20020319
DOCDB simple family (application)
EP 00124058 A 20001106; CA 2314194 A 20000721; JP 10079699 A 19990408; SG 200004164 A 20000725