Activation sensing
US7843354B2 · kind B2 · utility
13Cited by
5References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2007 |
| Grant date | Nov 30, 2010 |
| Priority date | — |
| Expiry date | Apr 29, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8326
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A determination of bleed valve activation in a gas turbine engine can be difficult unless the engine is maintained at a steady idle state for comparison between that state and effects of activation of the bleed valve. Furthermore, specific test activation of bleed valves increases wear and tear on those valves. By sensing a flow pressure response signal and then through appropriate averaging and processing through a non-linear filter, it is possible to identify bleed valve activation by a target signal response exceeding a threshold indicative of such bleed valve activation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.