Combustor for gas turbine

Patent · Tue Jun 09 04:00:00 EDT 1987

OSTI ID:6360393

Sato, I; Tamura, Z; Ohmori, T; Minakawa, Y; Fujimura, H; Uchiyama, Y

This patent describes a combustor for a gas turbine comprising a combustion chamber means, means disposed outside of the combustion chamber means for mixing compressed air with a gaseous fuel to form a pre-mixture at a predetermined air excess ratio; means for supplying the pre-mixture into the combustion chamber; means from an upstream end form a premixture flame; means for supplying further gaseous fuel for main combustion together with air at an air excess ratio of 1.3 or more to a region near a tip end of the pre-mixture flame so as to enable a carrying out of a low temperature combustion of a lean mixture. The gaseous fuel to the main combustion chamber is increased in accordance with a gas turbine load. The combustion chamber means includes a head combustion chamber means for pre-mixing combustion to form the pre-mixture flame.

• Assignee: Hitachi, Ltd., Tokyo
• Patent Number(s): US 4671069
• OSTI ID: 6360393
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AIR
AIR FLOW
COMBUSTION CHAMBERS
COMPRESSED AIR
COMPRESSED GASES
COOLING
CYLINDERS
DILUTION
DISPERSIONS
FLAME PROPAGATION
FLUID FLOW
FLUIDS
FUEL-AIR RATIO
FUELS
GAS FLOW
GAS FUELS
GAS TURBINES
GASES
MACHINERY
MIXING
MIXTURES
TURBINES
TURBOMACHINERY