| 摘要 |
PURPOSE: A variable device of a wind turbine is provided to naturally and automatically control retraction and return of a rotor and a tail vane by eccentricity, elevation-type folding unit, and gravity of the tail vane. CONSTITUTION: A variable device of a wind turbine comprises a body(1), a rotor(2), and a tail vane(3). The body is idled above a post(A). The rotor is installed in the front of the body and rotated by wind power. The tail vane is installed in a wind direction and let the rotor turn to be faced in the wind direction. The center of the vertical body is separated to one side from the major axis and installed eccentrically. The tail vane is inclined in an upward direction at the opposite side of a vertical eccentric part and folded. |
