| 摘要 |
PROBLEM TO BE SOLVED: To provide a combustor suppressing combustion vibration by regulating pilot air supplied to a pilot nozzle when lowering a pilot ratio. SOLUTION: An additional swirler 8 is provided at the outer periphery of the downstream tip of the pilot nozzle 2 downstream of a pilot swirler 6. The throat area of the additional swirler is made narrower than that of the pilot swirler 6 to reduce the pilot air quantity supplied downstream of a pilot cone 4. COPYRIGHT: (C)2004,JPO
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