Gas turbine combustor

摘要

A gas turbine combustor is provided with a nozzle extension tube (420) having an inclination outward in a diameter direction of a combustor inner cylinder (20) and in a peripheral direction of the combustor inner cylinder. As a result, the premixed gas is transformed to a spiral flow passing into a combustion chamber while turning, i.e., an outward turning flow, thereby sufficiently mixing the premixed gas while the premixed gas is flowing in the combustion chamber.