Title:
POWER-GENERATING WIND TURBINE AND ITS MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2010/007684
Kind Code:
A1
Abstract:
A power-generating wind turbine which can be activated with a gentle breeze, prevents disturbance of the wind caused by rotation and is excellent in power generation efficiency. The power-generating wind turbine has a plurality of streamline-wing-shaped blades (3) provided every predetermined angle around a rotation shaft (3), and the blades (3) have lift coefficients of 1.0 or larger. Apertures (51) are provided within a range of 55 to 95% from a front rim (52) for a length of a chord on a rear face (6) being the rotation shaft side to the chord (54). Thus, the turbine can be activated with a gentle breeze by drag on the apertures (51). Since the apertures (51) are provided at a position of 55 to 95% for the chord length distant from the front rim (52) of the rear face (6) of the blade (3), in a high wind speed region where the turbine rotates by the lift of the blades (3), less disturbance of the wind flow is observed on the rear faces (6) to be resistance, and thus high rotation torque can be obtained.
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Inventors:
HARA, Akio (66-1 Oyamatu Chuou-k, Niigata-shi Niigata 52, 95009, JP)
Application Number:
JP2008/062960
Publication Date:
January 21, 2010
Filing Date:
July 17, 2008
Export Citation:
Assignee:
WINPRO CO., LTD. (66-1 Oyamatu Chuou-ku, Niigata-shi Niigata, 52, 95009, JP)
株式会社ＷＩＮＰＲＯ (〒52 新潟県新潟市中央区親松６６－１ Niigata, 95009, JP)
株式会社ＷＩＮＰＲＯ (〒52 新潟県新潟市中央区親松６６－１ Niigata, 95009, JP)
International Classes:
F03D11/00; F03D3/06; F03D7/06
Attorney, Agent or Firm:
USHIKI, Mamoru (3rd Fl, Yusei Fukushi Kotohira Bldg.14-1 Toranomon 1-chom, Minato-ku Tokyo, 105-0001, JP)
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