Optical sensing of combustion dynamics
US5544478A · kind A · utility
67Cited by
4References
20Claims
0Family size
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Key dates
| Filing date | Nov 15, 1994 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Nov 15, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An optical radiation detector, such as a silicon carbide photodiode ultraviolet radiation detector, is employed for real time, noninvasive monitoring and diagnosis of combustion dynamics in gas turbine engines. The SiC photodiode responds to flame ultraviolet emission, and a Fast Fourier Transform spectrum analyzer peak acoustic frequency components of the detector signal as indicators of systematic gas pressure vibrations related to combustion. The combustion may be modified in accordance with the monitored acoustic frequency components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.