| 摘要 |
PURPOSE:To reduce the level of a whistling sound produced through the gaps between the vane wheel of a cross flow fan and a stabilizer and a fan casing. CONSTITUTION:The surface of a stabilizer 8 facing toward a vane wheel 4 is formed of a porous resin material 12 and, behind this surface, an air chamber 13 is formed. The surface of a fan casing 1 facing toward the vane wheel 4 is formed of a porous resin material 14 and, behind this surface, an air chamber 15 is formed. |
