| 摘要 |
A cooling device enabling the easy assembling thereof and an increase in cooling efficiency by securely preventing reverse flow, comprising an axial fan having a plurality of vanes, a power source driving the axial fan, a cylindrical fan ring formed at the outer edge parts of the vanes, projected parts projected in the outer peripheral direction approximately all around the fan ring, a shroud disposed between the axial fan and a cooled object, and an adjusting plate fixed to the shroud while allowing the distance thereof from the outer peripheral surface of the fan ring to vary and divided into multiple parts in the circumferential direction. ® KIPO & WIPO 2007
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