Kenwood TS-990S In-Depth Manual page 99

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MECHANICAL STRUCTURE 09

The five cooling fan motors are made by Sanyo Denki Co., Ltd., whose products are trustworthy.

Fig. 6

Fan Placement and Ventilation Flow

As the number of cooling fans employed increases, the internal ventilation flow becomes more complicated. At the

development stage, CAE analysis was carried out to optimize the ventilation flow. The image "Fan Placement and

Ventilation Flow" shows a visualized air flow in the chassis on its upper side.

Fig. 7

Air Flow Simulation

The lines indicate streams of air. The higher the density of the lines, the more the air flows. The image above shows that

the streams of air pass through the final unit at the center and smoothly go outside.

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