TURBOMACHINE ROTOR Russian patent published in 2014 - IPC F02C7/36 F01D5/02 

FIELD: machine building.

SUBSTANCE: turbomachine rotor comprises a turbine disk connected to the compressor shaft by bolt connection, and a bush set on the inner side of the disk hub. The bush consists of movable and fixed parts. The tail of the fixed part is provided with a circumferential rib and an annular groove. The movable part is placed on the side of the bolt connection and is able of axial displacement. The front tail of the movable bush part is provided with sealing rings and is fixed in the radial direction by a compressor bush. The rear tail of the movable bush part is provided with axial grooves and radial protrusions. The rear tail of the movable bush part is fixed in the radial direction by the circumferential rib of the fixed bush part. In the circumferential direction the rear tail of the movable bush part is fixed by the radial ribs of the fixed bush part tail which are inserted in the axial grooves of the movable bush part tail. In the axial direction the rear tail of the movable bush part is fixed by radial protrusions which are inserted in the inner annular groove of the fixed bush part tail.

EFFECT: improved reliability and manufacturability of a turbomachine rotor.

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