Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent
1997-06-04
2000-11-14
Dang, Khanh
Acoustics
Sound-modifying means
Muffler, fluid conducting type
181225, E04F 1704
Patent
active
061456160
ABSTRACT:
An acoustic chamber for a compressor, wherein the compressor has a cooling fan and a fan opening. The acoustic chamber has a floor, a ceiling and first and second side walls, defining first and second ends of the chamber, one of the ends being open for flow of air into the chamber. An acoustic choke at the second end faces the open end of the chamber and extends between the first and second side walls and between the floor and ceiling. An acoustic channel disposed adjacent the open end of the chamber directs sound in a channelling direction from the open end of the chamber towards the acoustic choke. The floor, ceiling and first and second side walls have sufficient permeability to permit flow of air into the open end of the chamber without negatively affecting the functioning of a compressor cooling fan. The first and second side walls are permeable and each comprises plural parallel side baffles spaced from each other to allow flow of air between the parallel side baffles and extending between the floor and ceiling.
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Dang Khanh
Lambert Anthony R.
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