| 摘要 |
A fan apparatus includes first axial fans each arranged with a rotation axis thereof extending perpendicularly or substantially perpendicularly to a mounting surface provided in a case designed to contain an electronic device; and second axial fans each having a rotation axis coinciding with the rotation axis of a separate one of the first axial fans. The first axial fans are arranged to rotate in a first rotation direction to introduce, send, or discharge air into, inside, or out of the case, while the second axial fans are arranged to rotate in a second rotation direction opposite to the first rotation direction to cause a flow of air in the same direction in which the first axial fans cause a flow of air. Both of the first axial fans and the second axial fans either share a common single-piece housing or have separate housings joined together.
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