GAS-TURBINE POWER PLANT Russian patent published in 2006 - IPC F01D3/02 F01D25/14 

FIELD: power engineering.

SUBSTANCE: proposed gas-turbine power plant contains gas-turbine engine whose input device is furnished with stator flange. Rotor of free power turbine of gas-turbine power plant has radial-thrust bearing at side of input device and labyrinth disk forming labyrinth seal with stator flange. Relief space of free power turbine is formed by stator flange and labyrinth disk and housing of input device. Deflector is installed in relief space of free power turbine forming ring slot channel with surface of part of inner duct wall of input device. Slot channel is connected at input with intermediate stage of compressor, and at output it is connected through perforation with relief space of free power turbine.

EFFECT: improved reliability of gas-turbine power plant owing to cooling of air supplied for pressurizing relief space.

2 cl, 2 dwg