COOLED TURBINE OF GAS-TURBINE ENGINE Russian patent published in 2007 - IPC F02C7/12 F01D25/12 

FIELD: aircraft industry.

SUBSTANCE: invention relates to cooled turbines of gas-turbine engines of aircraft and ground application. Proposed cooled turbine of gas-turbine engine includes cooling air supply pipes locate on turbine housing. Housing of turbine is furnished with bushing with spherical inner surface. Spring and ring with spherical outer surface are installed on cooling air supply pipe. Ring is telescopically fitted on pipe for turning inside spherical inner surface of bushing of turbine housing in angular direction. Spring is installed between movable and thrust bushings of pipe for axial displacement of ring through movable bushing.

EFFECT: improved reliability of turbine by excluding stresses in pipe delivering cooling air and reduction of parasitic leakages.

2 dwg