| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gas turbine blade for effective cooling with a suitable amount of cooling medium. <P>SOLUTION: In the gas turbine blade, a first cooling medium flow path 4 and a second cooling medium flow path 5 adjacent to the first cooling medium flow path 4 across a wall are formed in the inner part, a plurality of ejection holes 9 connecting the first cooling medium flow path 4 with the second cooling medium flow path 5 are provided on the wall, and the plurality of ejection holes 9 are disposed in multiple rows. Since the ejection holes 9 are disposed in multiple rows, stress concentrated on a wall surface can be relaxed as compared with a blade where a row of ejection holes is disposed. Thereby, the opening area of the ejection holes can be made smaller and effective cooling is enabled by a suitable amount of cooling medium. <P>COPYRIGHT: (C)2012,JPO&INPIT |
