OIL SYSTEM OF GAS-TURBINE ENGINE Russian patent published in 2006 - IPC F02C7/06 

FIELD: aircraft industry and other industries.

SUBSTANCE: invention relates to oil systems of gas-turbine engines containing rotor support oil space connected to feed line, scavenge line and breathing line and installed in said lines, respectively, fuel-oil heat exchanger, scavenge pump and drive centrifugal breather, compensating reservoir communicating with breathing line and hydraulically connected with oil tank. According to invention, output of centrifugal breather is connected with input of oil tank by means of feed line or by means of additional scavenge pump installed in scavenge line and connected by input to output of centrifugal Breather and by output, to oil tank. Ratio 0.6≤V/V_res≤1.0 for oil system is provided where V is designed volume of oil drained from rotor support into compensating reservoir when engine is shut down; Vres is reservoir volume.

EFFECT: improved reliability of operation of engine oil system.

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