GAS-TURBINE ENGINE Russian patent published in 2003 - IPC

FIELD: mechanical engineering; gas-turbine engines. SUBSTANCE: invention can be used in cooling systems of gas-turbine engines. Proposed gas-turbine engine contains shaft installed in bearings one of which is arranged before turbine in bearing space furnished with fuel nozzles. Holes are over outer surface of bearing support housing to let in cooling air, and ring is installed between said bearing and turning on shaft. Outer rim of ring has radial bead with labyrinth lips on end to form inner space. Inclined holes are made in bead pointed towards cooling air flow. Moreover, on end face of outer surface of bearing housing, L-shaped sharp tenon is made which is located in inner space of ring. EFFECT: enlarged operating capabilities. 2 cl, 1 dwg