Flame monitoring of a gas turbine combustor using multiple dynamic pressure sensors in multiple combustors
US9612016B2 · kind B2 · utility
2Cited by
16References
20Claims
0Family size
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Key dates
| Filing date | Oct 14, 2014 |
| Grant date | Apr 4, 2017 |
| Priority date | — |
| Expiry date | Oct 15, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The state of a flame in a subject combustor of a gas turbine engine is acoustically monitored using a dynamic pressure sensor within the subject combustor and one or more additional sensors in nearby combustors. Dynamic pressure sensor output signals from the sensors are cross correlated to identify acoustic oscillations generated by a flame in the subject combustor and received by the sensors. The cross correlation may be constrained by a maximum time delay between correlated components of the signals, based on physical characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.