GAS TURBINE COMBUSTOR AND METHOD OF SUPPRESSING COMBUSTION DYNAMIC PRESSURE IN TRANSITION FROM PRIMARY OPERATION MODE TO PRE-MIX OPERATION MODE

Japanese Patent JP3459449

B2

PURPOSE: To provide a gas turbine combustor enabled to minimize high combustion dynamic pressure in a transition to a pre-mix operation.
CONSTITUTION: This gas turbine combustor includes primary and secondary combustion chambers 24, 26 with a venturi 60 including a throat portion 64 located therebetween and a plurality of primary fuel injection nozzles secured to a combustor cap in an annular array upstream of the primary combustion chamber 24, and secondary fuel nozzle. Further, the combustor comprises a centerbody extending from the combustor cap to the secondary combustion chamber 26 and a plurality of tertiary fuel injection nozzles 56 arranged in a circular array about a longitudinal axis of the combustor, at a location downstream of said venturi throat portion 64, for injecting fuel into the secondary combustion chamber.

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Masayoshi Kuwata
Louis Berkeley Davis, Jr.
Richard Joseph Borkowitz

JP30960593A

October 20, 2003

December 10, 1993

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GENERAL ELECTRIC COMPANY

F23R3/28; F23C6/04; F23R3/30; F23R3/32; F23R3/34; (IPC1-7): F23R3/34; F23R3/28; F23R3/30

JP2208417A
JP250026A
JP1137117A
JP4283316A
JP63150518A
JP6232370B1
JP638373B2

【文献】特許3330601(JP,B2)

Kenichi Matsumoto

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