STEAM TURBINE Russian patent published in 2011 - IPC F01D5/06 F01D9/04 F01D5/34 

FIELD: machine building.

SUBSTANCE: steam turbine consists of: stator unit and rotor unit. The stator unit includes nozzles directing flow of steam. The rotor unit includes blades receiving flow of steam. The rotor unit consists of: a section of retention, the first end of a shaft on the first end of the retention section and the second end of the shaft on the second end of the retention section opposite to the first end of the retention section. The retention section has a packaged rotor section including one or more rotor plates each made of an integral metal work piece. The blades are connected with the rotor plate forming a monolith connection. The rotor unit also contains a forged rotor section located near the retention section and including: a forged rotor part and rotor steps having blades with lugs in form of dove tail arranged in slots on external surface of the forged rotor part.

EFFECT: simplified manufacture, eliminating fabrication and assembly of separate steps of blades and separate rotor plates since forged rotor section is located near retention section.

5 cl, 13 dwg