A pulsation and vibration control device for use with a compressor, which provides multiple vibration-reducing components in a compact space. The device comprises a muffler including a flange at the compressor end, a muffler body with vibration control features such as baffles, and a free end on a d
A pulsation and vibration control device for use with a compressor, which provides multiple vibration-reducing components in a compact space. The device comprises a muffler including a flange at the compressor end, a muffler body with vibration control features such as baffles, and a free end on a discharge line side but kept out of contact with the discharge line, and a bellows assembly, including an attachment to the muffler flange, an attachment to the discharge line, and first and second convolutions and a middle section which are sized such that they can fit over the muffler body without contacting it.
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1. A pulsation and vibration control device, comprising: a muffler unit, comprising: a flange on a compressor end;a muffler body extending from a first part of the flange towards a discharge line and containing at least one vibration attenuation structure; anda free end opposite the compressor end;
1. A pulsation and vibration control device, comprising: a muffler unit, comprising: a flange on a compressor end;a muffler body extending from a first part of the flange towards a discharge line and containing at least one vibration attenuation structure; anda free end opposite the compressor end; anda bellows assembly surrounding the muffler body, wherein the bellows assembly is attached to the flange at a second part, different than the first part, and extends from the flange to the discharge line; andwherein the muffler body and the bellows assembly do not contact one another and the free end of the muffler and the discharge line do not contact one another. 2. The pulsation and vibration control device of claim 1, wherein a gap between the free end of the muffler and the discharge line is between approximately one inch and approximately one quarter of an inch. 3. The pulsation and vibration control device of claim 1, wherein a gap between the free end of the muffler and the discharge line is approximately one quarter of an inch. 4. The pulsation and vibration control device of claim 1, wherein the at least one vibration attenuation structure comprises a plurality of baffles are located within the muffler body. 5. The pulsation and vibration control device of claim 4, wherein the each of the plurality of baffles comprises a baffle plate and a tube. 6. The pulsation and vibration control device of claim 5, wherein for each baffle, the baffle plate and the tube are joined at an approximately 90 degree angle. 7. The pulsation and vibration control device of claim 5, wherein a height of the baffle plate and a length of the tube are selected based on a targeted frequency of vibration to attenuate. 8. The pulsation and vibration control device of claim 5, wherein the baffle plate has a cutout on a side of the baffle plate joined to the body of the muffler. 9. The pulsation and vibration control device of claim 1, wherein the at least one vibration attenuation structure comprises a plurality of contracted portions of a path through the muffler body. 10. The pulsation and vibration control device of claim 9, wherein the contracted portions of a path through the muffler body are in parallel with one another. 11. The pulsation and vibration control device of claim 9, wherein the contracted portions of a path through the muffler body are in series with one another. 12. The pulsation and vibration control device of claim 1, wherein the bellows assembly further comprises: a first convolution;a second convolution;a middle section connected to the first convolution and the second convolution;a compressor-side mounting, connected to the flange of the muffler unit; anda discharge line-side mounting, connected to the discharge line. 13. The pulsation and vibration control device of claim 12, wherein the bellows assembly further comprises one or more structural supports extending from the compressor-side mounting to the discharge line-side mounting. 14. A pulsation and vibration control system, comprising: a muffler unit, comprising a muffler flange at a first end, a muffler body extending from a first part of the muffler flange and containing at least one vibration attenuation structure and having an outer surface, and a second end, wherein the muffler body has an opening at the second end; anda bellows assembly, comprising a convolution and an internal space and wherein the bellows assembly has a length equal to or greater than the outer surface of the muffler body and wherein the internal space has a volume that is larger than a volume defined by the outer surface of the muffler body,wherein the bellows assembly is connected to the muffler flange at a second part, different from the first part, and wherein the bellows assembly and the muffler body do not contact one another. 15. The pulsation and vibration control system of claim 14, further comprising a discharge line, wherein the bellows assembly extends past the muffler body on the second end, and a gap between the second end of the muffler and the discharge line is between approximately one inch and approximately one quarter of an inch. 16. The pulsation and vibration control system of claim 15, wherein the gap between the second end of the muffler and the discharge line is approximately one quarter of an inch. 17. The pulsation and vibration control system of claim 14 wherein the at least one vibration attenuation structure comprises a plurality of baffles. 18. The pulsation and vibration control system of claim 17, wherein the each of the plurality of baffles comprises a baffle plate and a tube. 19. The pulsation and vibration control system of claim 14, wherein the at least one vibration attenuation structure comprises a plurality of contracted portions of a path through the muffler body. 20. The pulsation and vibration control system of claim 14, wherein the bellows assembly further comprises: a second convolution;a middle section connected to the first convolution and the second convolution;a compressor-side mounting; anda discharge line-side mounting.
Sawyer ; III Colon W. ; Carter Gordon A. ; Boyd Gordon T. ; Pandeya Prakash N. ; DiFlora Michael A., Low noise refrigerant compressor having closed shells and sound absorbing spacers.
DeVries Douglas F. (Yucaipa CA) Cegielski Michael J. (Norco CA) Graves ; Jr. Warner V. (Hemet CA) Williams Malcolm R. (San Clemente CA) Holmes Michael B. (Riverside CA), Portable drag compressor powered mechanical ventilator.
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