| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine engine component sustaining a thermo-mechanical fatigue and admitting easy boring. SOLUTION: The turbine engine component has a positive pressure side and a negative pressure side where an external wall and an internal wall are provided, respectively. A fluid passage 60 belonging to a first set is positioned between the external and internal walls on the positive pressure side, while a fluid passage 62 belonging to a second set is positioned between the external and internal walls on the negative pressure side. The fluid passages 60 and 62 of the first set and the second set have wavy configurations, and each of the passages 60 and 62 is furnished with film cooling holes 70 in at least single row, or preferably in a plurality of rows. Ribs 64 and 66 having undulate shape are provided there, which generate a wide region 76 admitting boring of the film cooling holes 70 and a narrow region 78 contributing to improvement of the fatigue-resistant ability. The turbine engine component may have a rear edge part cooling passage in wavy configuration in order to cool the rear edge part. COPYRIGHT: (C)2006,JPO&NCIPI
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