DEVICE FOR AXIAL FIXING SECTOR OF RING SEAL IN HIGH-PRESSURE TURBINE OF TURBOMACHINE Russian patent published in 2009 - IPC F01D25/24 F01D11/08 

FIELD: mechanical engineering.

SUBSTANCE: device for axial fixing a sector of ring seal in high-pressure turbine of turbomachine which ring has front radial wall and rear radial wall, includes longitudinal plate. The front radial wall of seal sector is provided with external front projection entering corresponding front groove of high-pressure turbine casing and internal front projection entering corresponding front groove of ring section. The rear radial wall of seal sector is provided with external rear projection entering corresponding rear groove of high-pressure turbine casing and with internal rear projection attached to ring sector. The longitudinal plate forms thermal shield, is located before the front radial wall of seal sector on internal surface of casing, is installed with thrust to the front radial wall of seal sector and attached to casing so that provides axial fixation of this seal sector.

EFFECT: invention makes possible to provide thermal protection of turbine casing against thermal radiation of guiding blades and provides axial fixation of seal sector.

4 cl, 4 dwg