TURBINE ROTOR DESIGN Russian patent published in 2012 - IPC F01D5/30 

FIELD: machine building.

SUBSTANCE: turbine rotor design includes a disc along the external circumference of which there located are grooves, blades fixed in grooves, a gasket arranged between the blade root and disc, and plates. Each gasket includes two side members and a base connecting the side members between each other. Each side member is located between support surface of the blade root and the appropriate support surface of the disc. Each side member is made from the first material having the first Young modulus with E value at arbitrary temperature lying in the range of operating temperature of the gasket. Plates are tightly adjacent to support surfaces of disc and/or to support surfaces of the blade root and made from the second material having the second Young modulus with value of E/20 to E/5 at the specified temperature. The other invention of the group refers to the turbine containing the above rotor design.

EFFECT: inventions allow enlarging the service life of blade roots and disc owing to reducing the wear of their support surfaces.

6 cl, 3 dwg