POWER TURBINE OF GAS-TURBINE ENGINE

摘要

FIELD: aircraft industry. ^ SUBSTANCE: invention relates to power turbines of gas-turbine engines of aircraft and ground application. Proposed power turbine of gas-turbine engine contains cooling air supply pipes rigidly on outer housing by peripheral shanks and telescopically coupled by inner shanks with inner housing. Pipes are arranged in hollow posts installed before nozzle blades in direction of gas flow in turbine passage. Peripheral shank of pipe is made spherical over outer surface and is fixed by front and rear rings made spherical over inner surfaces. Inner cylindrical shank of pipe is telescopically installed in spherical bushing over outer diameter. At least one cooling air temperature sensor with wires of sensor brought out through pipe is installed in air space of inner housing. ^ EFFECT: improved reliability and efficiency of turbine by preventing overheating of turbine disk, reduction of bending stresses in pipes delivering cooling air and cutting down hydraulic losses. ^ 3 dwg