| 摘要 |
PROBLEM TO BE SOLVED: To increase efficiency in cooling at the both of base side and an end side of a turbine blade. SOLUTION: A turbine blade 10 includes a blade main body 11 having flow passages 31 to 33 internally formed, and a first structure 41 extending in the base to end direction of the blade main body 11. The flow passages 31 to 33 include a first flow passage part 31a extending in the base to end direction from the base 13 to the end 12 of the blade main body 11. The blade main body 11 is tapered from the base 13 to the end 12. The first flow passage part 31a is composed of only a first flow passage base side part 31w at the base 13 side, and a first flow passage end side part 31v at the end 12 side. The first structure 41 is provided in the first flow passage base side part 31w, but is not provided in the first flow passage end side part 31v. COPYRIGHT: (C)2009,JPO&INPIT
|
