Compressor muffler
US7988427B2 · kind B2 · utility
6Cited by
10References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 26, 2005 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Feb 18, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S181/403
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compressor has first (26) and second (28; 30) enmeshed rotors rotating about first (500) and second (502; 504) axes to pump refrigerant to a discharge plenum (42). The compressor includes a muffler system (200) comprising a sound absorbing first element (232) and a sound absorbing second element (236). The second element at least partially surrounds the first element and defines a generally annular flow path portion (230) between the first element and the second element. A wall (250) at least partially surrounds the second element. A space (259) optionally containing a sound absorbing third element (261) surrounds the wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.