Cabin pressure control system with multiple outflow valves and method of calibrating the outflow valve position feedback during flight
US8694181B2 · kind B2 · utility
3Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2012 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Oct 27, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0753
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of calibrating an outflow valve on an aircraft may include determining if the aircraft has reached a predetermined cruise condition. The outflow valve may be moved until a closed position is reached, if the aircraft has reached the predetermined cruise condition. An actual position feedback value of the outflow valve may be determined while the aircraft is in the predetermined cruise condition. An offset calibration factor may be determined from the actual position feedback value of the outflow valve relative to a theoretical value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.