| 摘要 |
<p>The invention concerns a soundproofing element for pressurised air distribution systems to pneumatic users, comprising a feeding chamber 14 for distributing a pressurised air flow to the users, and an expansion chamber 15 for receiving and depressurising the return air from said users in order to reduce its pressure down to a pressure equal to or near atmospheric pressure, said expansion chamber 15 communicating with the outside, the atmosphere, or another soundproofing element in series or in a network. <IMAGE></p> |
