| 摘要 |
A vertical axis wind turbine (10) having a plurality of blades (12) spaced from and rotatable around a rotor shaft (14) vertical to the ground. The plurality of blades (12) are arranged in a helical pattern about the rotor shaft (14). Each blade is flexible to move in response to wind and has a top (20), bottom (22), leading edge (24), and trailing edge (26) wherein the leading edge (24) is in the shape of an airfoil. A hub (30) having a plurality of blade attachment rods (28) radially extending from the rotor (14) wherein one blade is secured to one of the attachment arms (28). The hub (30) has a plurality of attachment rods radially extending from the rotor (14) wherein one blade is secured to one of the attachment rods near the center and wherein the top (20) of each blade is closer to the rotor (14) than the bottom (22) of each blade. |
