| 发明名称 |
SOUND DAMPER FOR EXHAUST AIR FROM A FAN DEVICE |
| 摘要 |
Sound damper (10) for extraction air from a fan assembly (20), including a sound-damping layer at an outlet duct (12) for the xtracted air. The outlet duct (12) is perforated (14) and enclosed at a distance by an outer wall (28) that includes the sound-damping layer (36).
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| 申请公布号 |
WO03014631(B1) |
申请公布日期 |
2004.04.08 |
| 申请号 |
WO2002SE01173 |
申请日期 |
2002.06.18 |
| 申请人 |
KEYVENT, AB.;LUNDBERG, LEIF |
发明人 |
LUNDBERG, LEIF |
| 分类号 |
F04D29/66;F16L55/033;F24F7/007;F24F13/24;(IPC1-7):F24F13/24 |
主分类号 |
F04D29/66 |
| 代理机构 |
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代理人 |
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| 主权项 |
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