| 摘要 |
A wind turbine includes a plurality of pivot shafts that are in paired parallel relationship and engaged to a central drive shaft, each pivot shaft supports a wing. Each pivot shaft rotates cyclically through 90° to move each wing from a wind-engaging orientation (drive position) in which the wing presents a flat surface approximately transverse to the incident wind, to a minimum dragposition (glide position). A gear transmission links the pivot shafts for sequential rotation in concert between the drive and glide positions. |
