公开(公告)号：EP2908003A1

公开(公告)日：2015-08-19

申请号：EP15152210.9

申请日：2015-01-22

申请人： X-Wind Power Limited

发明人： Blaize, Michael

IPC分类号： F03D3/06

CPC分类号： F03D3/061 ,  F01D5/141 ,  F03D3/005 ,  F03D7/06 ,  F04D29/384 ,  F05B2240/214 ,  F05B2240/301 ,  F05B2250/712 ,  Y02E10/74 ,  Y10T29/49336

摘要： A vertical axis wind turbine comprises a symmetric aerofoil having a concavely curved tail portion defining a trailing edge angle of between 0° and 5° on either side of the chord, a maximum thickness centre point between 26% and 34% of the length of the chord from the leading edge, a leading edge curvature ratio (D1/D2) from 0.42 to 0.50, and a ratio of maximum thickness to chord length T/C from 0.12 to 0.19, preferably 0.16. Advantageously the rotor may have helical blades defining a cylindrical swept envelope with a positive angle of attack and a solidity ratio NC/D from 0.125 to 0.270, and is governed at a tip speed ratio from 2.25 to 4.00.

摘要翻译： 垂直轴风力涡轮机包括具有凹弯曲尾部的对称翼型件，其限定弦的任一侧上的0°和5°之间的后缘角，最大厚度中心点在该弦的长度的26％至34％之间 弦前缘，前缘曲率比（D1 / D2）为0.42〜0.50，最大厚度与弦长T / C的比值为0.12〜0.19，优选为0.16。 有利地，转子可以具有限定具有正迎角的圆柱形扫掠包络线的螺旋叶片和从0.125到0.270的固定比NC / D，并且以尖端速度比为2.25至4.00。