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Patent Searching and Data


Title:
IMPROVEMENTS IN OR RELATING TO THE EXTRACTION OF ENERGY FROM THE WIND
Document Type and Number:
WIPO Patent Application WO/2010/122292
Kind Code:
A3
Abstract:
Apparatus for converting wind energy into another form of energy, such as electrical energy, is provided with at least two steerable kites (15, 16) on respective tether lines (17, 18) and having respective control means (40) controlling the kites (15, 16) to follow substantially independent flight paths, the control means being operable to cause the kites to follow flight paths which include a low energy part and a high energy part. The tethers (17, 18) are wound on respective drums (19, 20) driving and being driven (in turn) by electric machines (46, 47 48, 49) so that electricity is generated during the high energy part and surplus energy is used to draw in a kite during its low energy flight path. Sensors (35, 36, 37, 38) determine the flight parameters and control a computer (40) carried by the kite (15, 16) to determine its flight path on the basis of control signals which originate from the other kite and/or from a ground station (61), which latter may be transmitted wirelessly or via conductive components or tracks in the tethers (17, 18).

Inventors:
PREWER, John Russell (The Studio, 71 School LaneBapchild,Nr Sittingborne, Kent ME9 9NH, GB)
HAMPTON, Bill (The Gate Lodge, Hogbens HillSelling, Faversham ME13 9QU, GB)
Application Number:
GB2010/000787
Publication Date:
June 30, 2011
Filing Date:
April 20, 2010
Export Citation:
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Assignee:
KITETECH ENERGY SYSTEMS LIMITED (8 Godwin House, Royal Herbert PavillionsShooters Hill, London SE18 4PR, GB)
PREWER, John Russell (The Studio, 71 School LaneBapchild,Nr Sittingborne, Kent ME9 9NH, GB)
HAMPTON, Bill (The Gate Lodge, Hogbens HillSelling, Faversham ME13 9QU, GB)
International Classes:
F03D5/00
Domestic Patent References:
WO2008004261A12008-01-10
WO2010053389A22010-05-14
Foreign References:
DE102006001806A12007-07-19
DE102007002989A12008-07-24
CN200996356Y2007-12-26
JPH04237877A1992-08-26
FR2880658A12006-07-14
US20070120004A12007-05-31
GB2439215A2007-12-19
Attorney, Agent or Firm:
BRYER, Kenneth et al. (Bryer, Shelley John Amor, Greenwood LLP,7 Gay Street, Bath BA1 2PH, GB)
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