LUBRICANT COMPOSITION OF HIGH-TEMPERATURE OIL FOR HEAT-STRESSED GAS-TURBINE ENGINES OF SUPERSONIC AIRCRAFT Russian patent published in 2013 - IPC C10M141/06 C10M105/32 C10M137/10 C10M133/12 C10M133/44 C10N30/08 C10N40/12 

FIELD: chemistry.

SUBSTANCE: invention relates to a lubricant composition of high-temperature oil for heat-stressed gas-turbine engines of supersonic aircraft, which contains a base - aviation trimethylolpropane ester based on a mixture of esters of trimethylolpropane and fatty monocarboxylic acids, as well as an antioxidant additive - dioctyl diphenylamine or (bis(4-(1,1,3,3-tetramethylbutyl)phenyl)amine, antioxidant additive - alkylated phenyl-alpha-naphthylamine, anticorrosion additive in form of a mixture of oil-soluble metal deactivator Irgamet 39 based on a tolutriazole derivative and a corrosion inhibitor - 1,2,3-benzotriazole, tricresyl phosphate as an antiwear additive, with defined ratios of all components.

EFFECT: obtaining a lubricant composition with improved operational properties: stable viscous and temperature properties, thermal and thermo-oxidative stability at high temperatures, improved anticorrosion properties and tribotechnical properties in high speed conditions at high and low temperatures.

1 cl, 3 tbl