Dual-actuator aircraft environmental control system valve
US7264017B2 · kind B2 · utility
10Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2005 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Mar 1, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7782
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A regulator valve includes dual actuators that operate according to different principles to position a valve element to either an open or a closed position. One actuator, which is an electromechanical actuator, operates in response to electrical command signals. The other actuator, which is a pneumatic actuator, operates in response to a fluid pressure. The electromechanical actuator is responsive to the electrical command signals to rotate in either a valve open or a valve close direction, to move the valve element to either the open or closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.