Patent ID: 6070411
Filing Date: 2000-06-06
Classification: F23D,F23R

Abstract:
A gas turbine combustor comprising:an outer casing;a combustor inner cylinder disposed inside the outer casing;a combustion chamber including a head side portion formed in the combustor inner cylinder;at least one pilot fuel injection unit disposed to the head side portion of the combustion chamber,said pilot fuel injection unit comprising a first premixing combustion nozzle unit, a diffusing combustion nozzle unit and a second premixing combustion nozzle unit, said first premixing combustion nozzle unit being arranged at a central portion of said head side portion of the combustion chamber, said diffusing combustion nozzle unit being arranged so as to coaxially surround an outside of said first premixing combustion nozzle unit and said second premixing combustion nozzle unit being arranged so as to coaxially surround an outside of said diffusing combustion nozzle unit, respectively; anda premixing combustion chamber is disposed to an outlet side of said first premixing combustion nozzle unit so as to be communicated with said combustion chamber.