FIELD: acoustics.
SUBSTANCE: invention relates to noise suppression. Silencer comprises a cylindrical housing, rigidly connected with end inlet and outlet nozzles, sound absorber located between cylindrical housing and perforated element, and an acoustically transparent material, placed between perforated element and sound absorber, wherein sound absorber is made of mineral wool on basalt base of “Rockwool” type, or “URSA” mineral wool, basalt wool P-75, or glass wool with glass felt, or foamed polymer, for example, polyethylene or polypropylene, wherein sound absorbing element over its entire surface is lined with acoustically transparent material, for example, glass fabric EZ-100 or polymer of “Poviden” type.
EFFECT: higher efficiency of noise suppression.
1 cl, 3 dwg
| Title | Year | Author | Number |
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RU2653865C1 |
