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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0293857 (1981-08-18) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 39 인용 특허 : 0 |
Energy is extracted from a free-stream fluid flow of wind or water by means of a multi-turn helicoid structure with a relatively small pitch angle. The axis of the structure about which the helicoid turns is making an angle with the flow vector in the order of or slightly larger that the pitch angle
Apparatus for extracting energy from the kinetic energy of an unbounded fluid flow such as wind or water, making use of an array of helicoids, characterized by (a) the helicoids having all the same pitch angle of between 5°and 36°and having their axes arranged in one plane and parallel to one anothe
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