Title:
A WINDMILL DEVICE OF A VERTICAL SHAFT TYPE WIND POWER GENERATION SYSTEM AND A METHOD FOR CONTROLLING WINDMILL BLADES THEREOF
Document Type and Number:
WIPO Patent Application WO/2010/031200
Kind Code:
A1
Abstract:
A windmill device of a vertical shaft type wind power generation system and a method for controlling windmill blades thereof are provided. The windmill device includes a vertical shaft (2, 9, 30), vertical blades (3, 11, 22) that are connected to the vertical shaft (2, 9, 30) by blade supporting frames (10, 31) so as to rotate around the axis of the vertical shaft (2, 9, 30), and the vertical blades (3, 11, 22) include blade rotation shafts (4, 14, 21) and can rotate around the axis of the blade rotation shafts (4, 14, 21), and a guide device (15, 16, 25) that makes the vertical blades (3, 11, 22) rotate around the axis of the blade rotation shafts (4, 14, 21) while rotating around the axis of the vertical shaft (2, 9, 30). It makes the effective wind receiving area of the vertical blades (3, 11, 22) in tailwind direction greater than that in upwind direction so as to increase the generating efficiency.
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| WO/2009/075865 | VERTICAL AXIS WIND TURBINE WITH BLADES FOR REDIRECTING AIRFLOW |
| WO/2010/124659 | WIND-ELECTRICITY MOTOR VEHICLE |
Inventors:
XIANG YAFENG (CN)
Application Number:
PCT/CN2008/001612
Publication Date:
March 25, 2010
Filing Date:
September 16, 2008
Export Citation:
Assignee:
XIANG YAFENG (CN)
International Classes:
F03D3/00; F03D7/06
Foreign References:
| DE10032674A1 | 2002-01-24 | |||
| DE19718048A1 | 1998-11-05 | |||
| US4424002A | 1984-01-03 | |||
| CN101349238A | 2009-01-21 | |||
| CN2802117Y | 2006-08-02 | |||
| CN2189216Y | 1995-02-08 |
Attorney, Agent or Firm:
ONDA TECHNO SUNRAY INTL. PATENT ATTYS. (LeiRm 2705B, Jin Mao Tower 88 Century Avenu, Pudong Shanghai 0, CN)
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