RAM fan system for an aircraft environmental control system
US7757502B2 · kind B2 · utility
50Cited by
33References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2005 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Aug 19, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/50
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An environmental control system includes a RAM air fan system downstream of a respective heat exchanger in the relatively high temperature RAM exhaust. The RAM air fan includes a RAM air fan electric motor such that the RAM air fan is driven at a speed independent of an air cycle machine. A fan rotor is completely supported by hydrodynamic foil journal and thrust bearings. As the RAM air fan is driven by the RAM air fan electric motor the RAM air fan is installed in the environmental control system as a self-contained system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.