WINDMILL ELECTRIC GENERATING PLANT Russian patent published in 2000 - IPC

FIELD: wind-power engineering. SUBSTANCE: plant has prevailing-wind oriented contractions and turbine-generator set with turbine blades; novelty is that contraction is of square section throughout entire axial length; all contractions are made as separate sections whose wall thickness varies in proportion to load; each section has external stiffness members forming isosceles right triangles; contraction nozzles are made in the form of rectangles arranged to the left and to the right of turbine with vertical shaft fitted onto generator shaft above generator. The latter is, essentially, induction motor running in regeneration mode; turbine blades are shaped as rectangular plates with holes arranged in staggered manner on their bottom. EFFECT: improved reliability; facilitated manufacture. 5 dwg