TURBINE ROTOR WITH STOP PLATES AND APPROPRIATE ASSEMBLY METHOD Russian patent published in 2010 - IPC F01D5/30 

FIELD: machine building.

SUBSTANCE: turbine rotor includes rotor disc with slots, a lot of blades with roots arranged in slots of rotor disc and a lot of stop plates installed between rotor disc and blades. The first gaps on radial external ends and the second gaps on radial internal ends, relative to rotation axis of rotor disc, are formed between adjacent stop plates; at that, at least one of the first gaps is less than the appropriate second gap. The other invention of the group refers to installation method of stop plates on rotor disc in compliance with which there arranged is the first stop plate in the circle of rotor disc, and the second stop plate is arranged immediately near the first stop plate so that the gap is formed between the first and the second stop plates. Gap space has narrow and wide ends; at that, wide end is located closer to the circle of rotor disc than the narrow end is.

EFFECT: inventions allow providing the sealing between blade roots and rotor disc without locking of plates in transient operating modes of turbine.

7 cl, 3 dwg