FIELD: machine building.
SUBSTANCE: group of inventions relates to the associated with hydraulic machine rotating part, hydraulic machine and the energy conversion plant. Hydraulic machine (20) rotating part (202) comprises blades (208), which are distributed around the axis of rotation and extend between the front and rear edges. Each blade (208) comprises first portion (208A), which forms its leading edge and second portion, which is attached to the first portion and forms its trailing edge. Part (208B) is elastically deformable under the water flow (E) effect. During the machine operation, part (208B) forms the water flow (E) direction downstream of the blade (208). Part (208B) is formed by the core of rigid material, which is one unit with part (208A), and coating, which is made of elastically deformable material having the elasticity modulus less than that of the first part forming material or profile from the resin, which is attached to the part (208A), and the composite material shell, which surrounds profile from the resin.
EFFECT: group of inventions is aimed at the coming from the impeller flow quality improvement in wide range of flow rates.
13 cl, 13 dwg
