SEAL RING FOR TURBINE STAGE AIRCRAFT TURBINE MACHINE CONTAINING SHUTOFF PROJECTIONS WITH SLOTS, ROTOR STAGE OF TURBOMACHINE, TURBOMACHINE AND METHOD OF MAKING SEALING RING Russian patent published in 2016 - IPC F01D5/30 

FIELD: machine building.

SUBSTANCE: seal ring to press to the rotor disc of turbo machine stage comprises multiple locking ledges preventing rotation of the above ring relative to the rotor disc. Every ledge extends along the axis of the circular part and has two opposite circular end surfaces facing to two following each other blades, carried by the disc rotor. Each shutoff ledge intersects radially cutout extending axially. In making said seal ring slot locking ledge is made by machining. Other inventions of the group refer to the rotor stage aircraft turbine machine containing the disc blades installed on the disc, and said seal ring, as well as to turbomachine aircraft containing turbine including the above rotor.

EFFECT: group of inventions increases service life of the sealing ring.

10 cl, 7 dwg