Patent ID: 8128373
Filing Date: 2012-03-06
Classification: F01D,Y10S,Y10T

Abstract:
1. A turbine rotor, comprising: a rotor disc; a plurality of slots arranged on the rotor disc; a plurality of blades having a plurality of blade roots and arranged in the plurality of slots; a plurality of locking plates fitted in a position between the rotor disc and the plurality of blades; and a plurality of gaps formed between a plurality of neighbouring locking plates, each gap having: wherein at least one of the plurality of first gap widths is smaller than a corresponding second gap width such that the gap foamed by the corresponding first gap width and the second gap width is tapered, the gap becomes continuously narrower from the second gap width to the first gap width along an entire length of the gap, wherein the plurality of locking plates, when in an assembled position, are arranged between a plurality of retaining annular grooves arranged in the rotor disc and the plurality of blades, and wherein a border of each locking plate includes two opposing concentric circular arcs and two opposing non-parallel straight lines.