Patent ID: 6321557
Filing Date: 2001-11-27
Classification: F04B,Y10S

Abstract:
Noise attenuating apparatus comprising a housing having a base on which are supported an outer enclosure and an inner enclosure for receiving one of a compressor and a condenser unit, the outer enclosure including a front panel member and side panel members connected to the front panel member through sealed joints, and the inner enclosure including a front panel member, a rear panel member and side panel members connected to the front and rear panel members through sealed joints, a continuous passageway defined between the opposed surfaces of the side and front panels of the inner and outer enclosures, a primary air inlet formed in the front panel of the outer enclosure through which air can enter the housing and whose width is at least equal to the width of the front panel of the inner enclosure, a tubular tunnel member in communication with the air inlet through which air entering the housing can pass to an inner plenum chamber of the inner enclosure which is bordered by the end and side panels of the inner enclosure, the direction of air entering the inner plenum chamber being reversed by contact with the rear panel of the inner enclosure and directed over and through one of the compressor and condenser unit, an air outlet formed in the front panel of the inner enclosure through which air can leave the inner enclosure and enter the passageway defined between the front and side panel members of the inner and outer enclosures, the passageway terminating in air outlets through which spent air can leave the housing.