COMBUSTOR AND GAS TURBINE COMPRISING SAME

摘要

A sound attenuator (30) having a plate section forming a combustion cylinder (20) and an acoustic cover (34) forming, in conjunction with this plate section, a space on the outside perimeter of the combustion cylinder (20). An aperture (40) that reduces a gas flowpath is provided inside the combustion cylinder (20). At least one through-hole (33) that penetrates from inside the combustion cylinder (20) to the space is formed in the plate section. At least one through-hole (33) in the sound attenuator (30) exists inside an area from the position for the minimum aperture diameter (43) of the aperture (40) to the positions at a distance equivalent to the minimum aperture radius R, on the upstream side and the downstream side.