Claims
- 1. A compressor assembly comprising:a compression mechanism into which a gas is received substantially at a suction pressure and from which the gas is discharged substantially at a discharge pressure, the gas discharged from said compression mechanism carrying pressure pulses having a particular frequency and wavelength, these pressure pulses being of variable amplitude; a first muffler through which the gas discharged from said compression mechanism flows; a second muffler in series communication with said first muffler and through which the gas having flowed through said first muffler flows; and wherein said first and second mufflers are spaced by a distance which is substantially equal to an odd multiple of one quarter of said wavelength, said amplitude being reduced in response to the gas having flowed through said second muffler.
- 2. The compressor assembly of claim 1, wherein said compression mechanism comprises a cylinder in which a piston reciprocates, and a head having a discharge chamber into which gas compressed by said piston in said cylinder is received, said first muffler comprising said head discharge chamber.
- 3. The compressor assembly of claim 1, wherein said first and second mufflers are in fluid communication through a tube, at least one of said first and second mufflers comprising at least one hole in said tube and a shell enclosing a portion of the exterior of said tube, said shell defining a resonance chamber in fluid communication with the inside of said tube through said hole.
- 4. The compressor assembly of claim 3, wherein each of said first and second mufflers comprise a plurality of holes axially spaced along said tube and a shell enclosing a portion of the exterior of said tube and defining a resonance chamber, said first and second muffler resonance chambers in fluid communication with the inside of said tube through each respective plurality of holes.
CROSS-REFERENCE TO RELATED APPLICATION
This application is related to and claims the benefit under 35 U.S.C. §119(e) of U.S. Provisional Patent Application Serial No. 60/250,709, filed Dec. 1, 2000.
US Referenced Citations (58)
Non-Patent Literature Citations (1)
Entry |
Journal of Sound and Vibration (1973) 30(3), 263-277; On Helmholtz Resonator Effects in the Discharge System of a Two-Cylinder Compressor, by W. Soedel, E. Padilla Navas and B.D. Kotalik (Mar. 19, 1973). |
Provisional Applications (1)
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Number |
Date |
Country |
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60/250709 |
Dec 2000 |
US |