VENTILATION NOISE-SUPPRESSING DEVICE Russian patent published in 2002 - IPC

Abstract RU 2189426 C2

FIELD: civil engineering, in particular, ventilation noise-suppressing devices in enclosing constructions of buildings and structures. SUBSTANCE: ventilation noise-suppressing device has a heat-insulating panel at least with one vent hole and a locking mechanism at least with one valve for overlapping the holes in the mentioned panel. It is provided with a skip at least with one vent hole installed on the panel. The locking mechanism valve is made with a layer of heat-insulating material and positioned in the skip. EFFECT: reduced probability of condensation of water vapors on the device inner surface and enhanced efficiency of noise suppression. 8 cl, 4 dwg

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Authors

Dates

2002-09-20Published

2000-10-03Filed