| 摘要 |
PROBLEM TO BE SOLVED: To provide a fan device that can improve strength of plural centrifugal blade pieces, and can be easily manufactured at low costs.SOLUTION: In the fan device, an axial flow fan 17 having plural axial flow blade pieces 24 in a circumferential direction, and a fan cylinder body 18 positioned on outer peripheries of the axial flow blade pieces 24 and having a pulley cylinder part 21 and a centrifugal cylinder part 22 in an axial direction are concentrically and integrally formed. An outer periphery of the centrifugal fan cylinder part 22 is formed smaller than that of the pulley cylinder part 21. Centrifugal blade pieces 19 are arranged on the outer periphery of the centrifugal fan cylinder part 22 in the circumferential direction at intervals. The centrifugal blade pieces 19 are integrally formed on the outer periphery of the centrifugal fan cylinder part 22, and ends 19b of the centrifugal blade pieces 19 are integrally provided on an end face 21a of the pulley cylinder part 21. |
