EP 1985689 A1 20081029 - Lubrication methods
Title (en)
Lubrication methods
Title (de)
Schmierverfahren
Title (fr)
Procédés de lubrification
Publication
Application
Priority
EP 07251415 A 20070330
Abstract (en)
A method of lubricating a two-stroke, diesel crosshead engine comprises lubricating the engine with a cylinder oil and with a system oil, which oils are different from each other, in which the system oil is an SAE 20 or SAE 30 oil, has a total base number of at least 10 mg KOH/g and comprises :- (a) a base oil; (b) at least one detergent additive in a total amount of detergent corresponding in performance, as measured by the Hot Filtration Test, to at least 1.5 % by weight of the system oil, of a calcium alkyl salicylate detergent soap in which the alkyl group is a C 12 to C 30 alkyl group; and (c) at least one anti-wear additive. The method further comprising replenishing the system oil in the engine with a top-up system oil, in which the top-up system oil has the same additives as in the system oil previously charged to the engine but has a viscosity which is lower than that of the system oil previously charged to the engine.
IPC 8 full level
C10M 163/00 (2006.01); C10N 10/04 (2006.01); C10N 30/02 (2006.01); C10N 30/04 (2006.01); C10N 40/26 (2006.01)
CPC (source: EP)
C10M 163/00 (2013.01); C10M 2207/027 (2013.01); C10M 2207/028 (2013.01); C10M 2207/144 (2013.01); C10M 2207/262 (2013.01); C10M 2223/045 (2013.01); C10N 2010/04 (2013.01); C10N 2030/02 (2013.01); C10N 2030/52 (2020.05); C10N 2040/252 (2020.05)
Citation (search report)
- [X] WO 2006014866 A1 20060209 - LUBRIZOL CORP [US], et al
- [A] EP 1229101 A1 20020807 - INFINEUM INT LTD [GB]
Designated contracting state (EPC)
GB
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 07251415 A 20070330; CN 200880011032 A 20080320