Three-stage wind turbine with independently rotating blades.

Abstract

The invention relates to a three-stage coaxial wind turbine consisting of a forewing (1) and middle (2) rotating in the same direction, pulling the forewing (11) and middle (12) rotors in the same direction, and a rear (3) rotating in the opposite direction to the forewing (1) and middle (2) rotors, pulling the rear (15a) rotor in the opposite direction to the forewing (11) and middle (12) rotors; the three rotors are on the same horizontal axis and rotate independently of each other, the three stages are directly attached to the three rotors without the need for a gear drive system, thus reducing friction losses and increasing the efficiency of the wind turbine.

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