LUBRICANT COMPOSITION FOR AVIATION POWER INSTALLATIONS Russian patent published in 2010 - IPC C10M141/10 C10M137/04 C10M129/70 C10M133/12 C10M133/44 C10M105/38 C10N40/04 

FIELD: chemistry.

SUBSTANCE: invention relates to lubricant compositions for aviation power installations and more specifically: for gas-turbine engines of aeroplanes, main reduction gears and heavy loaded transmission assemblies and the oil system of the turbocharger of helicopter engines. The composition contains the following in wt %: bis [4-(1,1,3-tetramethylbutyl)phenyl]amine 1-3; C₇-C₉ alkyl ether 3,5-bis-(1,1 dimethylethyl)-4-hydroxybenzo propanoic acid 0.5-4; N,N-bis-(2ethylhexyl)-4 methyl-1H-benzotriazole-1-methylamine 0.05-0.25; tricresyl phosphate 1-5; 3-(bis-isobutoxy-thiophosphoryl sulphanyl)-2-methyl-propanoic acid 0.05-1.5; ester of neopentylpolyol and fatty acids C₅ - C₁₀ - the rest.

EFFECT: improved anticorrosion properties at high temperature (more than 200°C) with retention of lubricating power.

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