Bearing cooling control in an air cycle machine
US8905707B2 · kind B2 · utility
4Cited by
10References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2010 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Aug 29, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49243
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air cycle machine has a housing which holds a compressor section, and a turbine section having an expansion area, and a fan section disposed outside of the housing. A shaft, which attaches to and is coaxial with the compressor section, the turbine section and the fan section, is supported by an air journal bearing and an air thrust bearing. The shaft has a hollow core for porting cooling air from the air journal bearing and the air thrust bearing, and a tube that extends into said expansion area and communicates cooling air from the turbine expansion area to the thrust bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.