Patent ID: 8794004

Claim:
A gas turbine combustor provided with a pilot burner that is provided at the center portion of a combustor main body formed in a cylindrical shape to form a pilot flame, and a plurality of main burners arranged so as to surround the outer periphery of the pilot burner to form a premixed flame by combusting a premixed gas, the gas turbine combustor comprising: a pilot air channel formed in the pilot burner; a pilot swirler provided in the pilot air channel; and a channel blocking member adapted to be disposed on the pilot swirler, wherein the channel blocking member is disposed on the pilot swirler to reduce the size of a low-temperature air layer of pilot air, the low-temperature air layer being formed between the pilot flame and the premixed flame, and to reduce the distance between the premixed gas and the pilot flame so as to close off a gap between one or a plurality of air channels between vanes of the pilot swirler.