Patent ID: 7527053

Claim:
A noise attenuating system disposed in an enclosure of a ventilation system, comprising: a flow path comprising a plurality of interconnected chambers configured so as to create a plurality of impedance mismatches along said flow path; a perforated tube disposed in one of said chambers, said perforated tube comprising an inner chamber comprising a wall and a plurality of passages traversing said wall, each of said plurality of passages comprising a tube having a first end and a second end, said first end being disposed at said interior chamber, said second end extending beyond an external dimension of said wall, wherein a length of a flow path along a passage is greater than a thickness of said wall of the ventilation system; a compressor in fluid communication with said flow path, wherein said noise attenuating system is configured to attenuate noise generated by said compressor; and a mounting system to mount said compressor in said enclosure, said mounting system comprising a plurality of resilient mounts, said mounting system reducing a natural frequency of said compressor when mounted to said resilient mounts from a natural frequency of said compressor when unmounted.