PILOT NOZZLE OF GAS TURBINE COMBUSTOR

摘要

PROBLEM TO BE SOLVED: To provide the pilot nozzle of a gas turbine combustor to reduce the occurrence of deformation, reduce weight, and improve efficiency available during manufacture. SOLUTION: A premixture swirler 10 is constituted by interconnecting a plurality of sleeves by laser welding. The premixture swirler 10 is provided with an air intake port 8 and a fin 5 to control a velocity of flow of mixture gas. A premixture nozzle 2 is constituted in a similar manner described above that a plurality of sleeves are interconnected by laser welding. The premixture nozzle 2 is provided with a fuel passage 6 and a nozzle 7 and fuel supplied through the fuel passage 6 is injected in an atomized state through the nozzle 7. Different fuel is supplied to a diffusion nozzle 3.