Title:
METHOD AND BLADE SYSTEM FOR IMPROVING EFFICIENCY OF ENERGY EXTRACTION OF VERTICAL AXIS WINDMILL GENERATOR'S BLADES
Document Type and Number:
WIPO Patent Application WO/2010/130161
Kind Code:
A1
Abstract:
A method for improving the efficiency of energy extraction of the vertical axis windmill generator's blades and the blade system are disclosed. The blade system comprises: at least two blade sets (201, 202), each of which includes at least a piece of blade (2011, 2021); two blade rods (2012, 2013), which are separately set along the top edge or the bottom edge of each blade set (201, 202) and fixed to the windmill shaft (203) with one end; a vertical rotation shaft (2014, 2024), by which the blade (2011, 2021) is connected to the blade rod (2012, 2013) rotatablely, and the axis (20141, 20241) of which is located outside the vertical symmetry line (20111, 20211) of the blade (2011, 2021), and then the blade (2011, 2021) is divided into a big half section (20112, 20212) and a small half section (20113, 20213) located on the opposite sides of the axis (20141, 20241); at least a limiter (2051, 2052), which is set to make the blade (2011, 2021) rotate in only one direction by the driving of wind power.
Inventors:
WEI BIN (CN)
Application Number:
PCT/CN2010/070405
Publication Date:
November 18, 2010
Filing Date:
January 28, 2010
Export Citation:
Assignee:
WEI BIN (CN)
International Classes:
F03D3/00; F03D3/06
Foreign References:
| CN2067768U | 1990-12-19 | |||
| DE202008014231U1 | 2009-02-12 | |||
| CN101050750A | 2007-10-10 | |||
| CN2929236Y | 2007-08-01 | |||
| CN101201042A | 2008-06-18 | |||
| GB1561296A | 1980-02-20 | |||
| GB178932A | 1922-04-24 | |||
| JP2008106622A | 2008-05-08 |
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Claims:
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