ACM cooling flow path and thrust load design
US7402020B2 · kind B2 · utility
31Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2005 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Aug 15, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/6022
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air cycle machine includes a housing having a compressor housing portion. A shaft is supported by the housing and includes a thrust runner. A hydrodynamic thrust bearing is arranged adjacent to the thrust runner and includes upstream and downstream sides. A compressor rotor is mounted on the shaft. A seal is arranged between the compressor rotor and the compressor housing portion. An orifice is provided in the compressor housing portion at the downstream side of the hydrodynamic bearing. The orifice vents hot compressed air that may leak past the seal prior to reaching the hydrodynamic thrust bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.