Compressor ported shroud for foil bearing cooling
US7988426B2 · kind B2 · utility
15Cited by
17References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2005 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Nov 19, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2360/24
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compressor ported shroud takes compressed air from the shroud of the compressor before it is completely compressed and delivers it to foil bearings. The compressed air has a lower pressure and temperature than compressed outlet air. The lower temperature of the air means that less air needs to be bled off from the compressor to cool the foil bearings. This increases the overall system efficiency due to the reduced mass flow requirements of the lower temperature air. By taking the air at a lower pressure, less work is lost compressing the bearing cooling air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.