Device for reducing the generation of noise in fans
A device for reducing the generation of noise in a fan (11) having a gas intake channel (13), a gas discharge channel (14) and a gas propulsion device (15), in particular a side channel fan for supplying combustion air in a heater. At least in the regions of the opening cross-section (18, 19) of the...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A device for reducing the generation of noise in a fan (11) having a gas intake channel (13), a gas discharge channel (14) and a gas propulsion device (15), in particular a side channel fan for supplying combustion air in a heater. At least in the regions of the opening cross-section (18, 19) of the gas intake channel (13) and/or the gas discharge channel (14) there is disposed structure for inducing a flow resistance (interference structure 20, 21). |
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