Integrated environmental control system
US5704218A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1996 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Apr 8, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An integrated environmental control system is disclosed for providing conditioned supply air to loads such as a passenger cabin of an aircraft. The system comprises at least two shafts, each shaft having a fan, compressor, and turbine mechanically secured to the shaft; common heat transfer components including primary and secondary heat exchangers, a reheater, and a condenser with a water collector; lines that deliver the supply air separately through the compressors and turbines of each shaft and deliver the supply air in common through the common heat transfer components to the load; and shutoff valves secured in fluid communication with each turbine. Upon interruption in the flow of cooled supply air out of a particular turbine secured to any of the shafts, a shutoff valve shuts off transfer of the supply air to that particular turbine on that interrupted shaft and the remaining shafts and their respective fans, compressors, turbines, and the common heat transfer components continue to receive, condition and deliver the supply air to the load in a redundant operating mode. Because the total heat exchange capacity of the integrated, common heat transfer components is large enough…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.