HIGH-REVVING HIGH-TEMPERATURE STAGE OF HIGH-PRESSURE TURBINE Russian patent published in 1997 - IPC

FIELD: power plants and aircraft manufacture. SUBSTANCE: air is fed to shroud shelf and segments are subjected to combined cooling through perforations provided in walls of receiver and guarding cooling with air after jet cooling. Stator ring is provided with hermetic receiver for performing cooling. Wall of receiver is provided with local projections where holes are made. Segments are tightly fitted by their outer surfaces on surfaces of local projections. EFFECT: enhanced efficiency. 2 cl, 3 dwg