| 摘要 |
A fan control apparatus includes a fan, two engine+compressor combinations, two air supply systems, and an FCC. When an abnormality occurs in one of the air supply systems and one of the engine+compressor combinations, the FCC maintains the flow rate of the normally operating air supply system and then increases the flow rate. As a result, the normally operating drive source is prevented from overloading. In another embodiment, a fan control apparatus includes a fan, an air source, two air supply systems, and a bypass channel. The air is caused to flow through the bypass channel when an abnormality occurs in one of the air supply systems. As a result, the time that elapses till the fluid can be supplied at a necessary flow rate is shortened.
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