| 摘要 |
PURPOSE:To enable changing of wind feed direction by providing a wind direction changing vane rotatable through the wind pressure in front of an axial fan while forming a wind direction changing vane rotatable on the changing vane board face on said wind direction changing vane and rotating said vane properly. CONSTITUTION:A wind direction changing vane 7 rotatable through the wind pressure provided in front of an axial fan 5 is formed into a disc, while sections 13 for mounting a small disc wind direction changing vane 12 rotatably in the changing vane board 7 face are provided at four positions having open angle of 45 deg. from the center. Furthermore many wind direction changing vanes 12a are provided on said vane 12. Since the rotatable vane 12 is provided on said vane 7, the wind feed direction can be changed in accordance to the application by rotating said vane 12 properly. |
