| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To inhibit overcooling of pin fins and variation of temperature distribution near the trailing edge of a blade body by improving the cooling efficiency of the pin fins in the body of the blade body and thereby improve the performance and efficiency of a gas turbine. <P>SOLUTION: The blade body 10 includes: the body 20 of the blade body in which a belly side wall 21 and a back side wall 22 are connected at a leading edge 23a and the trailing edge 23b, the inside is formed in a hollow portion 24 and a ventilation hole 27 is formed in the trailing edge 23b; and inserts 30 with impingement holes 32 formed in the hollow portion 24. In the blade body 10, the pin fins 28 lying near the trailing edge 23b are cooled with cooling air A in a trailing edge cooling area 29. Between the insert 30 and the trailing edge cooling area 29, a flow regulation plate 40 formed separately from the body 20 of the blade body and formed with a flow regulation hole 42 by machining is mounted to the body 20 of the blade body. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
