| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wind power generation device utilizing artificial airflow, which effectively generates electricity even with a narrow wind receiving area and even at an insufficient wind speed by improving the blade shape of the wind mill of the wind power generation device utilizing artificial airflow such as exhaust from a factory. <P>SOLUTION: A perspective view shows the entire structure of the wind power generation device 1. As shown in the perspective view, the wind power generation device 1 of the present embodiment is provided with the water wheel type wind mill 2 and a shaft 3 rotatably supporting the wind mill 2. Both the ends of the shaft 3 are supported by supporting parts 4, and a large diameter pulley 5 is arranged at one end of the shaft 3. The surfaces A and B of the blade surfaces of the wind mill 2 are made different in resistance to airflow. That is, a groove perpendicular to airflow is provided to the surface A, and a groove in parallel with airflow is provided to the surface B. On the surface A, a small vortex is generated on its surface to increase resistance by the groove perpendicular to airflow. On the surface B, airflow on its surface is straightened by the groove in parallel with airflow. <P>COPYRIGHT: (C)2008,JPO&INPIT |
