To ensure stabilized combustion by placing an annular member for rectifying flow of fluid in an interconnected fluid channel on the outer circumferential side of a combustion chamber tubular member thereby suppressing diverted flow of oxidizing agent in the circumferential direction of a combustor.
A perforated panel 17 is fixed, as a rectifying mechanism, between a protrusion 15 provided in the vicinity of the outlet of a combustion chamber and a protrusion 16 provided at the inlet of a premixer. Since the perforated panel 17 is disposed at an enlarged part of a channel, cross-sectional average current velocity is low and the high current velocity region of a diverted flow in the circumferential direction of a combustor generated by the outer tube 14 of a plug can be attenuated. Since a channel enlarging part for enlarging the channel area from the upstream toward the downstream of oxidizing agent is provided in a curved channel on the upstream side of a rotary section, and a rectifying mechanism is provided at the channel enlarging part or on the downstream side thereof, diverted flow in the circumferential direction of the combustor is limited. In particular, high current velocity region of a diverted flow in the circumferential direction of the combustor can be attenuated and combustion can be stabilized.
MUROTA TOMOYA
YOSHIDA SHOHEI
HIRATA YOSHITAKA
KOBAYASHI SHIGEYOSHI
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