Noise reduction unit for gas compressors

  • US 5,332,872 A
  • Filed: 08/30/1993
  • Issued: 07/26/1994
  • Est. Priority Date: 08/27/1993
  • Status: Expired due to Term
First Claim
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1. A sound reduction unit for a compressor, the compressor having a cooling fan, the cooling fan having a front face in which is disposed an air inlet, the sound reduction unit comprising:

  • a sound absorbing housing attached to the cooling fan front face and surrounding the air inlet;

    the housing forming a passageway about the air inlet, the passageway being defined by a bottom wall, first and second side walls and a top wall and at least one of the walls being separated from the cooling fan front face to form an opening for the free flow of air into the air inlet;

    a plurality of sound absorbing baffles attached to the housing to block direct passage of sound from the air inlet while allowing free flow of air into the air inlet; and

    a flange baffle extending from at least the one of the side walls and the top wall to a point behind a lateral projection of the front face of the cooling fan.

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