GAS TURBINE EQUIPMENT

Japanese Patent JP3703615

B2

PROBLEM TO BE SOLVED: To maintain a stable combustion state by checking a loss of kinder.
SOLUTION: Output from a comparator 45 is turned on, and output from a flip-flop FF 49 is turned on when the fuel nozzle pressure ratio NPR reaches the given pressure ratio VRA or less. A signal selector 41 is switched to a ratio setting device 39 side to select a ratio setting total closing signal RA. A fuel flow rate control signal FSRDL for diffusion combustion in a first system decreases with the given rate to zero, entirely closing a fuel flow rate control valve GCVL. A fuel flow rate control signal FSRD for diffusion combustion comes to equal to a fuel flow rate control signal FSRDH for diffusion combustion in a second system. Thus, fuel for diffusion combustion passes through a fuel flow rate control valve GCVLH only in the second system. The fuel nozzle pressure ratio in the second system is maintained to the given value VRA or more even for a decrease in the diffusion fuel flow rate caused by a succeeding increase in a load, and an elevation in combustion gas temperature.

Takafumi Nakano
Satoshi Ichikawa
Otonari Akinosuke
Takashi Mizuno
Yatabe Mitsuhiro

JP36240097A

October 05, 2005

December 12, 1997

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Toshiba Corporation
Toshiba System Technology Co., Ltd.

F02C9/28; F02C9/34; F23R3/28; (IPC1-7): F02C9/34; F02C9/28; F23R3/28

JP7019482A
JP8178290A
JP7166891A
JP8014565A
JP5149149A
JP60067724A

Mitani Megumi

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