公开(公告)号：EP2535563A4

公开(公告)日：2014-12-24

申请号：EP11739333

申请日：2011-01-31

申请人： NAT WIND ENERGY CO LTD

发明人： JIANG DALONG ,  XU JINQUAN ,  WANG JIANHUI

IPC分类号： F03D3/04 ,  F03D3/02 ,  F03D7/06

CPC分类号： F03D3/02 ,  F03D3/0445 ,  F03D3/0472 ,  F03D7/06 ,  F05B2240/214 ,  F05B2240/511 ,  Y02E10/74

摘要： A high-efficiency and high-power vertical axis wind turbine provided by the present invention includes a rotor with vertical blades as well as a booster airfoil, the said booster airfoil is a wind shielding object which is provided on a support in a manner without blocking the rotation of the said blade and in the front of the windward side of the said wind rotor, the wind shielding surface of the said booster airfoil corresponds with the windward blades of the said wind rotor on the side where rotation is hindered by the incoming wind streams, so that the side where rotation of the rotor is hindered by the incoming wind streams is shielded, and the said support is placed on a fixed frame. The provision of a booster airfoil in front of the windward side of the rotor helps block the moment of resistance produced by the air stream on the rotor of the wind turbine, adding to the moment of rotation of the rotor, improving the efficiency of the wind turbine possibly by 25% or more.