WINDMILL WING AND DEVICE FOR GENERATING ELECTRIC ENERGY USING SUCH WING Russian patent published in 2006 - IPC F03D1/00 

FIELD: wind power engineering.

SUBSTANCE: invention relates to wing of windmill capable of changing area of wind pressure depending on change of wind force. According to first design version, windmill wing contains wing bodies mounted on rotating shaft and taking up wind pressure, being provided with holes to control wind pressure; plates to control wind pressure connected with wing and connected together with one of wires with plates, each plate slides along guides arranged from opposite sides of one of holes provided on one of wind bodies, elastic members, each adapted for connecting of one end of one of wires connected with said member and coupled with member with part of one of bodies of wing located at one side; winch, each adapted for connection of other end of wires connected with winch with other part of one of wing bodies located from other side, winches being mounted on one shaft for simultaneous winding or unwinding the wires, and winch drive. According to second design version, wing of windmill contains plates connected with each body of wing and with chains, each chain sliding along guides arranged from opposite sides of one of holes provided on one of bodies of wing; sprockets supporting the chains, and sprocket drive. According to third design version, wing contains pairs of plates connected with each of wing bodies together with holes, each pair of plates has upper and lower plates and it slides along guides arranged from opposite sides of hole, thus adjusting degree of hole opening; cylinders adapted to move the plates. Proposed wind power generating device contains primary, secondary and third wings of windmill mounted along rotating shaft at least on one steel support, and turning device for moving pivot along circular rail guide supported by steel support. Support pivot of windmill slides, being supported by upper and lower rollers.

EFFECT: improved efficiency of use of wind force without damage at heavy wind.

10 cl, 32 dwg