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(11)    Patent No :    AP 2032   
(21)    Application No :    AP/P/2005/003423   
(22)    Filing Date :    18.03.2004   
(24)    Date of Grant &    25.08.2009   
           
(45)    Publication :

(30)  Priority Data       
(33) Country    (31) Number    (32) Date
GB    0306075.3    18.03.2003

(84)    Designated State

BW    GM    GH    KE    LS   MW  MZ   SL   SD
SZ    T Z    UG    ZM    ZW
 
(73) Applicant(s)

RENEWABLE DEVICES SWIFT TURBINES LIMITED, Bush

Estate, Edinburgh EH26 0PH,
United Kingdom

(72) Inventors

ANDERSON David Ewart, United Kingdom

SILVERTON Charles Lawrence, United Kingdom

(74) Representative

FISHER CORMACK & BOTHA
 

(51)  International  Classification   F03D 1/04 (2006.01)    F03D 9/00 (2006.01)
F03D 9/02 (2006.01)   


(54)    Title

Wind turbine

(57)    Abstract

There is described herein a rotor for a wind turbine comprising a plurality of radial blades and a ring-shaped aerofoil diffuser connecting the outer tips of the blades. Further there is described a wind turbine comprising said rotor and further comprising a nacelle and a mounting means adapted to allow rotation of the turbine and rotor about a directional axis perpendicular to the rotational axis, thus allowing the turbine to be oriented in the optimum direction depending on wind conditions. A furling means is disclosed to effect a change in orientation depending on wind speeds. A wind turbine system is also disclosed comprising: a wind turbine driven generator and means for providing a power output, the power output connected to a heating system, a grid-tie inverter or stand alone inverter adapted to supply power to local or grid power infrastructure, or an energy storage system. A method of controlling the level of power taken from a wind turbine; and a wind turbine comprising means for reducing the operating vibrations caused by harmonic resonance within the turbine, tower and mounting structure are also described.


(56)    Documents Cited :    US 1 467 227 A    DE 92 18 214 U    US 5 910 688 A

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