Wind turbine with flow surfaces

Details Wind turbine with flow surfaces Wind turbine with flow surfaces

2011-08-09

2011-08-09

Zarroli, Michael C (Department: 2839)

Prime-mover dynamo plants

Fluid-current motors

Wind

C415S004200

Reexamination Certificate

active

07994652

ABSTRACT:
The present invention relates to a method of increasing the output of a wind turbine, wherein one or more flow surfaces are placed at a wind turbine. At lower wind speeds, the flow surfaces are set to guide the wind up towards and/or out from the rotor of the wind turbine and hence use the venturi effect in the rotor to advantage. At higher wind speeds, the flow surfaces are completely or partially taken out of the flow of the wind. Moreover, the flow surfaces can be adjusted around the wind turbine based on measurements of the speed of the wind and direction of the wind and/or the power signal of the wind turbine. The invention further relates to a system comprising one or more flow surfaces and means for adjusting same to the effect that the output of a wind turbine can be maximized by using the venturi effect to advantage as described above.

REFERENCES:
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patent: 4600360 (1986-07-01), Quarterman
patent: 5419683 (1995-05-01), Peace
patent: 5982046 (1999-11-01), Minh
patent: 6655907 (2003-12-01), Brock et al.
patent: 7256512 (2007-08-01), Marquiss
patent: 7484363 (2009-02-01), Reidy et al.
patent: 2007/0147998 (2007-06-01), Jang
patent: 2009/0134623 (2009-05-01), Krouse
patent: WO 02/068817 (2002-09-01), None
patent: WO 2004/011799 (2004-02-01), None

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