| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas turbine combustor provided with a combustion vibration suppressing means with high heat resisting performance. SOLUTION: The gas turbine combustor includes an acoustic liner (resonance box) set in the circumferential direction of a combustor liner, which extends in a length equal to or longer than the diameter of the combustor liner. The wall surface of the combustor liner in the part where the acoustic liner is set has pores, so that the combustion gas in the combustor liner and the gas in the acoustic liner are mutually resonated, and combustion vibration is attenuated by the friction with the wall surfaces of the pores. The acoustic liner has a partition-free space having a length equal to or longer than the diameter of the combustor liner in the inner part. The acoustic liner has high heat resisting strength with minimized stress concentration because it is molded so as to have no acute angle or right angle by press working. COPYRIGHT: (C)2005,JPO&NCIPI |
