TURBOMACHINE COMPRESSOR ROTOR, TURBOMACHINE COMPRESSOR AND TURBOMACHINE Russian patent published in 2015 - IPC F01D5/14 F04D29/32 

FIELD: machine building.

SUBSTANCE: turbomachine compressor rotor consists of a disk which carries blades. The wall of the disk at its radial outer ring is made from several angular sectors each of which is limited between the first blade back and the pressure side of the second blade following the first blade in the circumferential direction. Each of the sectors comprises a bulge section being convex in the axial and circumferential directions. The tip of the bulge section is set radially outside in respect to the imaginary surface of rotation around a rotor disk axis passing through four points determined by the intersection of the wall respectively with the front edge of each of the first and second blade and the rear edge of each of the blades. The tip is distanced in the circumferential direction from the first blade back by 30-70% of the circumferential distance between the back and the pressure side of the blades measured at the tip level. The wall comprises also a recess section located upstream from the bulge section and being concave in the axial direction and in the circumferential direction and having a base being approximately point-like one. Other inventions of the group refer to the compressor including such a rotor and a turbomachine including such a compressor.

EFFECT: group of inventions allows for increasing the efficiency of turbomachine compressor rotor.

6 cl, 2 dwg