| 摘要 |
FIELD: machine building.SUBSTANCE: radially-vortex turbomacine comprises a scroll case, an impeller installed in it with the carrying and covering disks and the blades arranged between them. The pressure and suction surfaces of the blades in the area of trailing edges thereof are provided with the longitudinal and additional projections shaping an annular cylindrical vortex chamber in the area of trailing edges of the blades. The vortex chamber is attached to the carrying and covering disks, it is provided with an axle running parallel to the blade trailing edge, a tangential inlet passage facing the pressure surface of the blade and a perforated surface of a cylindrical shell. The cylindrical shell is installed with clearance in such a way that an intrinsic curve to it along the line of crossing the plane, which runs through the chamber axis and the blade trailing edge, is parallel to an intrinsic curve to the pressure and suction surfaces of the blade at its trailing edge. The additional cylindrical chambers with a tangential inlet passage is built into the blade along its entire length, at that, the axes of the cylindrical chambers are located at the middle surface of the blade, while the perforations are made protruding to the pressure and suction surfaces of the blade.EFFECT: invention helps to increase the aerodynamic loading and efficiency of the turbomachine.3 dwg |
