Refrigeration or air conditioning unit with noise reducing grill

Details Refrigeration or air conditioning unit with noise reducing grill Refrigeration or air conditioning unit with noise reducing grill

1998-09-15

2000-02-15

Bennett, Henry

Refrigeration

Muffler or sound dampener

454206, F25D 1900

Patent

active

060239387

ABSTRACT:
The open grille structure normally directly in front of a condenser coil is replaced with an acoustical barrier which is moved forward of the condenser coil. In moving the acoustical barrier forward, space results at the top, bottom and sides of the unit which can be used to provide inlet openings for inlet air. Acoustical absorption material lines the structure defining the air flow path to the coil. The modified air flow path results in a modified sound path which results in sound attenuation.

REFERENCES:
patent: 3537544 (1970-11-01), King
patent: 3592123 (1971-07-01), Henken et al.
patent: 4330047 (1982-05-01), Ruspa et al.
patent: 4877106 (1989-10-01), Neville et al.
patent: 4956978 (1990-09-01), Bleck et al.
patent: 5931002 (1999-08-01), Nagashima

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