Refrigerant compressor discharge muffler
AssigneeCopeland Corporation
InventorsAustin S. Childs, Hubert Bukac, Simon Y. Wang
Life of this patent
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Abstract
A refrigerant compressor discharge muffler which operates on the principle of a closed chamber resonator is disclosed. The muffler includes a generally J-shaped tube and an outer shell adapted to be threadably affixed to the head of a motor-compressor unit. The J-shaped tube is partially disposed within the outer shell and has a plurality of arrangements of apertures extending through the wall of the tube interconnecting the internal passage of the tube with a chamber defined by the outer shell. The spacing and size of the apertures are determined by a relationship to a frequency desiring to be attenuated.
Claims11
A compressor discharge muffler comprising:
- a shell defining a generally cylindrical sound attenuation chamber having a longitudinal axis, said chamber having an inlet opening disposed at a first end of said shell and an outlet opening disposed at a second end of said shell;
- a single piece tube disposed within said attenuation chamber and having a center axis, a central passage, an outlet end and an inlet end, said inlet end sealingly connected to said inlet opening for receiving gas entering said muffler, said outlet end sealingly connected to said outlet opening for discharging said gas from said muffler, said tube being straight with said center axis of said tube extending generally parallel to said longitudinal axis of said shell;
- and
- means defining a plurality of spaced arrangements of apertures through the wall of said tube, each arrangement of apertures being spaced a specified distance from adjacent arrangements of apertures, each arrangement of apertures comprising a plurality of apertures extending generally perpendicular to said center axis of said tube, each aperture of said plurality of apertures connecting said attenuation chamber to said central passage of said tube.
Dependencies are inferred from the claim text.