METHOD AND DEVICE FOR PREPARING CYLINDER OIL Russian patent published in 2018 - IPC F01M1/12 F01M9/02 C10M175/00 C10M177/00 C10N30/12 C10N40/26 

FIELD: machine engineering.

SUBSTANCE: invention relates to a method of obtaining cylinder oil, according to which the used oil is mixed with fresh cylinder oil, at that the used oil has a lower total base number (TBN) than the fresh cylinder oil. Method of operating an internal combustion engine is described, according to which cylinder oil is prepared according to any method of cylinder oil preparation, as described herein, and the cylinder oil is used in the internal combustion engine. Device is proposed for preparation of cylinder oil, which contains mixing means for mixing used oil and fresh cylinder oil, characterised by the mixing means is in fluid communication with at least one compartment of the internal combustion engine containing the used oil, or at least one storage compartment, containing used oil, with at least one compartment for storing fresh cylinder oil, and at least one cylinder of internal combustion engine. The methods, devices and applications of said invention are intended to be used in conjunction with two-stroke crosshead engines mounted on a ship.

EFFECT: reduction of the amount of lubricants improves control of kinematic viscosity in preparation of cylinder oil from used oils, reduction of wear and corrosion.

15 cl, 1 tbl, 3 dwg