TURBOMACHINE BLADE, TURBOMACHINE COMPRESSOR, TURBOMACHINE TURBINE AND TURBOMACHINE Russian patent published in 2016 - IPC F01D5/14 F04D29/32 

FIELD: turbo-machine.

SUBSTANCE: turbomachine blade includes an airfoil elongated radially between a root and a head, in the axial direction - between the front edge and the rear edge, and in the tangential direction - between the pressure side and the back. Blade airfoil profile is formed by a row of elementary profiles in the form of wing sections arranged on each other along the line connecting the centers of gravity of the blade airfoil sections. Display of the line connecting the centers of gravity of the blade airfoil sections on at least one plane radially extended from the blade root contains at least one axial inversion of its curvature direction arranged on the last 30 % of the blade airfoil height. Display surface is oriented, in fact, parallel with a chord in the blade head. Other inventions of the group relate to a compressor and a turbine of the turbomachine containing an impeller, which contains the above mentioned blades. One more invention relates to a turbomachine containing the above said compressor.

EFFECT: group of inventions increases efficiency of the turbomachine.

8 cl, 8 dwg