| 摘要 |
<p>The instant invention concerns an electric fan for cooker hoods, with a monolothic impeller (1) which is economic to produce and a grilled basin-shaped cover (3), shaped in such a way as to act as a nozzle for the impeller (1) behind it, on one side and as to increase the section for the passage of the air intake, on the other. <IMAGE></p> |
