Multistage compressor
US6769267B2 · kind B2 · utility
11Cited by
13References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2002 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Sep 28, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S181/403
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Refrigerant compressed by a first stage compression elements (30) run by a motor (20) is discharged in the closed container (10) via a silencer chamber (35) to cool the motor (20) before the refrigerant is led to a second stage compression element (40). The refrigerant is discharged from the second stage compression element (40) out of the compressor after it is further compressed in the second compression element (40). Thus, the motor (20) is cooled in a simple cooling mechanism during normal operation of the compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.