| 摘要 |
Vertical axis wind turbine, with wing profile section having extension of troposkein type or the like, which comprises a central rotation shaft (2) bearing two or more blades (3) fixed, each marked by a progression of its chord (c) as a function of the height (h) of the wing profile (P) of said blade (3) having a minimum chord value (c min ) at the upper and lower ends (h max , h min ) of the height of the blade (3); a second minimum chord value (c min3 ) at a median value (h med ) of the height of the blade (3) and maximum chord value (c max ) at two intermediate heights (h int1 and h int2 ) of the wing profile (P) of the blade (3) interposed between the median value (h med ) of the height of the blade (3) and the heights (h min , h max ) of the aforesaid lower (4) and upper (5) ends of the blade (3), respectively. Each blade (3) is also marked by a progression of the ratio (s/c) between its thickness (s) and its chord (c) as a function of the height (h) of the wing profile (P) of the blade (3) having a minimum ratio value ((s/c) min ) respectively at the aforesaid lower and upper ends (h min , h max ) of the height of the blade (3) and a maximum ratio value ((s/c) max ) at a median value (h med ) of the height of the blade (3). |
