TURBINE ROTOR Russian patent published in 2014 - IPC F01D5/30 

FIELD: machine building.

SUBSTANCE: turbine rotor comprises disc with seal ring bayoneted thereto to make circular cavity between disc surface and seal ring. Lock axially displacing in circular cavity to wards said disc is arranged between seal ring axial circular rib and sic axial circular ledge. Said lock has axial rib directed from the disc and two axial ledges arranged at lock edges and directed from the disc. Lock axial rib can be plastically strained in radial direction towards seal ring outer surface. Lock axial ledges contact with side surfaces of slots of bayonet joint between disc and seal ring.

EFFECT: higher reliability.

3 dwg