LUBRICATING OIL USED IN SHIP ENGINES RUNNING ON HIGH- AND LOW-SULPHUR DIESEL Russian patent published in 2012 - IPC C10M163/00 C10M129/06 C10N10/02 C10N10/04 C10N30/04 C10N40/26 C10N40/25 

FIELD: chemistry.

SUBSTANCE: invention relates to cylinder oil which contains a basic lubricating oil component for ship engines, where said basic lubricating oil component has viscosity class from SAE-40 to SAE-60 and at least one high-alkalinity detergent based on alkali metals or alkali-earth metals, characterised by that it also contains 0.01-10 wt %, with respect to total weight of the lubricating oil, one or more compounds (A), selected from primary, secondary or tertiary monoalcohols, the alkyl or alkylene chain of which is saturated or unsaturated, linear or branched and contains at least 12 carbon atoms, and when the alkylene chain of said compound (A) is unsaturated, said chain contains at most two unsaturated groups of the ethylene double bond type. The present invention also relates to use of lubricating oil to prevent corrosion and to reduce formation of deposits of insoluble metal salts in two-stroke ship engines. The present invention also relates to a method of producing lubricating oil and to an additive concentrate for cylinder oil.

EFFECT: production of one cylinder oil for two-stroke ship engines, which can be used with both high-sulphur and low-sulphur diesel.

34 cl, 2 tbl, 2 ex, 1 dwg