| 摘要 |
PURPOSE: An apparatus for automatically adjusting the blade pitch of an aerogenerator is provided to automatically adjust the inflow angle into the airfoil of a blade, and the predetermined angle and attack angle of the chord of the blade according to the intensity of wind. CONSTITUTION: An apparatus for automatically adjusting the blade pitch of an aerogenerator includes a connecting plate, a blade supporting member (20), and a first and a second pitch adjusting member (31,32). The central shaft of the aerogenerator is inserted into the first pitch adjusting member pressurizing the connecting plate. The second pitch adjusting member at the upper side of the first pitch adjusting member pressurizes the first pitch adjusting member. Magnets (31a,32a) having identical magnetic poles are respectively included inside the first and the second pitch adjusting member. The connecting plate moves the first pitch adjusting member up according to the torsion of a blade at a high wind velocity, and returns the blade pitch according to the repulsive force between the magnets below a rated wind velocity. |
