| 摘要 |
<p>The fan motor is mounted on a free spindle and is mounted in a gas duct. The spindle is parallel with the direction of gas flow in the duct. The rotor is forced to rotate by the flow of gas down the duct. If the gas flow is stopped the inertia of the fan motor causes it to continue revolving, and prevents reverse gas flow in the duct. The rotor may be fitted in an engine or inlet duct.</p> |
