Air cycle machine with cooling air flow path
US10160546B2 · kind B2 · utility
8Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2015 |
| Grant date | Dec 25, 2018 |
| Priority date | — |
| Expiry date | Sep 2, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air cycle machine comprises rotating components that include a fan, a compressor, and a first turbine. The air cycle machine also includes a cooling airflow path that receives cooling air from a cooling air source, directs the cooling air to an air-cooled bearing for at least one of the rotating components, and discharges the cooling air. The airflow path is isolated from an inlet of the compressor by a seal member, and the airflow path is configured to maintain pressure at the seal member above a pressure at the compressor inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.