| 摘要 |
PROBLEM TO BE SOLVED: To prevent the pressure oscillation of combustion gas from damaging a component in a turbine engine or an entire engine. SOLUTION: A system (10) includes a fuel nozzle (12) that includes a fuel injector (61, 70) configured to output a fuel flow, and a premixer tube (52) disposed about the fuel flow output from the fuel injector (61, 70). The premixer tube (52) includes a perforated portion (74) and a non-perforated portion (76), and the non-perforated portion (76) is located downstream of the perforated portion (74). COPYRIGHT: (C)2010,JPO&INPIT
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