| 摘要 |
<p>The centrifugal fan, partic. for use with a kitchen extract hood or the like, provides alternative extract or air circulation. It comprises a centrifugal fan housing scroll (3) with two angularly offset outlets (5) and a central inlet. A scroll partition (6) can be inserted from the outlet side into the housing in positions to close one or the other outlet. The scroll partition may be fixed to, or integral with, a side cover to the housing, which cover contains the central inlet. It may consist of plastic.</p> |
