Flame monitoring of a gas turbine combustor using a characteristic spectral pattern from a dynamic pressure sensor in the combustor
US9791150B2 · kind B2 · utility
2Cited by
15References
20Claims
0Family size
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Key dates
| Filing date | Oct 14, 2014 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Aug 22, 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 gas turbine engine combustor is acoustically monitored using a dynamic pressure sensor within the combustor. A spectral pattern of a dynamic pressure sensor output signal from the sensor is compared with a characteristic frequency pattern that includes information about an acoustic pattern of the flame and information about acoustic signal canceling due to reflections within the combustor. The spectral pattern may also be compared with a characteristic frequency pattern including information about a flame-out condition in the combustor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.