| 摘要 |
PURPOSE: An assembly of a fan and a shroud is provided to increase the amount of blowing by varying the discharging area of two or more fans mounted on the shroud. CONSTITUTION: Two or more fan mounting parts(31,32) at least are formed on a shroud(33). A plurality of fan assemblies(40,40') including motors(43,44) and fans(41,42) are installed at the fan mounting parts(31,32). An air-current guiding wall(34) is installed at the edge of the shroud. A partition limits the air-current discharging area of the fan. A varying unit(50) is installed at the partition, and varies the discharging area of each fan.
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