| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem with a fuel nozzle assembly of a combustor for a gas turbine engine in which, when the natural frequency of the fuel nozzle assembly is near or the same as the driving frequency of the gas turbine engine, a stress concentration occurs around the fuel nozzle assembly to lead to a fuel leakage owing to a hole formation in a component part.SOLUTION: The fuel nozzle assembly has a first end part connected with an end cover 304 of a combustor, a flange 306 furnished with a second end part on the side opposite the first end part, and a premixing pipe 308 connected with the second end part of the flange. The premixing pipe 308 is connected at its first end part with the second end part of the flange. The natural frequencies of the flange 306 and the premixing pipe 308 are different from the driving frequency of the gas turbine engine. |
