| 摘要 |
PROBLEM TO BE SOLVED: To restrain inconvenience of combustion by leakage between respective members for constituting a liquid fuel nozzle and an air nozzle injection part. SOLUTION: This fuel nozzle 7 is composed of a nozzle body part and a nozzle injection part. Liquid fuel, auxiliary air, and gas fuel are respectively supplied to the nozzle injection part via a liquid fuel flow passage, an auxiliary air flow passage, and a gas fuel flow passage. A fuel nozzle structure is formed into an integral structure of a liquid fuel nozzle, an auxiliary air nozzle, a gas fuel nozzle, and a revolving combustion air flow passage being constituent members of the nozzle injection part with a cylindrical diametral structure as a base. The respective members are assembled in close contact in the radial direction, so that a thermal elongation difference is absorbed by maintaining airtightness. COPYRIGHT: (C)2005,JPO&NCIPI
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