| 摘要 |
In order to utilise both wind and solar energy the rotor of a wind turbine is provided with photovoltaic cells 19. The turbine may be of an axial flow type (Fig. 1) or vertical axis type (Fig. 2). Pitch varying means and tracking means for turning the turbine to face the sun or into wind may be provided. The turbine can be used on the roof of light cars or on the roofs of buildings for such purposes as airconditioning or refrigeration and it can also be used for irrigation, water pumping etc. In the case of the vertical axis device (Fig. 2) the rotor may be driven by an electric motor (18) powered by the cells (19) instead of the wind acting on vanes (16). <IMAGE> |
