| 摘要 |
<p>PURPOSE:To smoothly rotate a wind mill so as to improve the absolute value of a lift generated in outer blades in a wide speed range of air, by forcedly generating an air stream facing to the outer blades of the wind mill and accelerating the outer blades by said air stream. CONSTITUTION:Plural ouater blades 4, extending in the same direction with a rotary shaft 1, are provided around the vertical rotary shaft 1, and lengthwise direction both end sides of these outer blades 4 are mounted to the rotary shaft 1 by horizontal blades 6 extending in the radial direction. Externally mounted baffles 5A, 5A are opposed in the outside of said horizontal blades 6, and an air stream is supplied to said externally mounted baffles 5A through ducts 7 from a feed air source 7A of exhaust by a warehouse, building, etc. or of a separately provided air collector and the like. And each air stream, being delivered to the horizontal blades 6 from the externally mounted baffles 5A, 5A, further acts on the outer blades 4 to accelerate a wind mill.</p> |
