HIGH-PRESSURE TURBINE ROTOR Russian patent published in 2014 - IPC F01D5/02 

FIELD: machine building.

SUBSTANCE: high-pressure turbine rotor includes a disk installed by the flange placed at the side of outputting edge of the blade placed at the bushing of the shaft. At the bushing side opposite to the disk there is a labyrinth with sealing ridges installed by protrusions of the radial fin. The disk flange with protrusions made at the radial fin of the labyrinth is fixed at the bushing by pins with the front and rear nuts placed at the pin edges. Between protrusions of the radial fin there are open accesses with rear nuts fixing pins and mounted washers or balance weights under the nuts. All pins are of the same length and at each protrusion and in each access there is only one rear nut. Thickness of the washer under the nut, axial thickness of the protrusion in the radial fin of the labyrinth and thickness of the mounting flange for balance weight are identical.

EFFECT: invention allows increasing reliability of the high-pressure rotor and reducing its weight and axial dimensions.

5 dwg