| 摘要 |
<p>PURPOSE:To obtain high flow straighting effect and sound absorbing effect by providing a pair of ventillation zone between a sound absorber and a chamber wall facing to the ejecting port of a blower and between the sound absorber and a chamber wall facing to the chamber wall above mentioned. CONSTITUTION:A chamber 3 is mounted on a dust collecting filter 2, and a blower 5 is incorporated into the chamber 3. A sound absorber 6 to be disposed between the dust collecting filter 2 and the blower 5 is provided in the upstream of the dust collecting filter 2 to face the filter at a specified ventillation distance 7. Further, a pair of ventillation zone 8, 9 is provided only between the sound absorber 6 and the wall of the chamber 3 facing to the blower 5 and between the sound absorber 6 and the chamber wall facing to the wall above mentioned. Thereby, high N flow straighting effect and sound absorbing effect can be obtained.</p> |
