| 摘要 |
The invention relates to wind-power engineering and makes it possible to form a swirling vortex stream, to reduce a blade aerodynamic drag, to increase a stream kinetic energy and to reduce a converter power losses. The inventive method for a stream vortex transformation consists in guiding an input three-dimensional stream towards the internal concave blade surfaces (7) and in forming vortex cords thereon with the aid of vortex cord formers (8) which are arranged at an angle to the blade axis of rotation. A vortex converter comprises an axis and helical blades connected thereto with the aid of steppedly arranged holders and posts. The blade is a thin-shaped, has an aerodynamic profile shape and consists of at least two layers connected to each other. The vortex cord formers (8) are arranged on the internal concave surface (7) of a collecting layer across the blade and the cross section thereof is embodied in a saw-like form and has asymmetrical sides, the smallest of which is caved-in in an arc-like manner.
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