Method and apparatus to detect onset of combustor hardware damage
US7441411B2 · kind B2 · utility
9Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2005 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Jun 29, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2241/20
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for determining when a combustor is experiencing hardware damage includes sensing acoustic vibrations of a plurality of combustor cans, determining a center frequency for each acoustic tone of the sensed acoustic vibrations within a predetermined frequency range, and indicating an alarm when a center frequency of one or more of the combustor cans changes in a different manner compared to a representative center frequency of the plurality of combustor cans.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.