GAS-TURBINE ENGINE Russian patent published in 2004 - IPC

FIELD: mechanical engineering; gas-turbine engines.

SUBSTANCE: proposed gas-turbine engine with straightening assembly of compressor last stage contains diffuser installed after compressor and load-bearing posts connecting outer and inner housing of combustion chamber. Inner housing accommodates cantilever rotor of turbine. Blades of straightening assembly of compressor last stage are connected to outer and inner housing of combustion chamber forming second row of load-bearing posts. Blades are connected to outer housing through elastic compensator. Distance between trailing edges of straightening blades of compressor last stage and load-bearing posts, radial height of load-bearing posts and distance between ball and roller bearings of cantilever rotor of turbine are determined by relationship protected by invention. Invention improves reliability and increases efficiency of gas-turbine engine owing to reduction of bending stresses in posts, decrease of elastic deformation and radial clearance between stator and rotor of turbine.

EFFECT: improved reliability, increased efficiency.

2 dwg