| 摘要 |
PURPOSE:To improve cooling perfomance of a turbine blade, by a method wherein partitions, extending along a camber line, are located to the inside of a turbine to partition the inside of the blade body into opposite flow type blade back side and blade front side cooling flow passage systems. CONSTITUTION:A partition 13 is located within a blade body 11 of a turbine blade 10 along a camber line (a skelton line), by which the centers of a blade back and a blade front are connected, and the partition partitions the inside of the blade body 11 into the blade back side and the blade front side chamber. Each of the chambers is partitioned by a plural small partitions 14 located at a proper intervals along a comber line to form plural small chambers. Out of the small chambers, two small chambers on the blade back side and the blade front side at the central part are communicated with the small chambers, located adjacent to the blade lead side and the blade tail side, through their respective blade top side communicating passages 15, and the adjacent small chambers are communicated with their respective adjacent small chambers on the downstream side through their respective blade root side communicating passages 16 to form opposite flow tyoe cooling flow passages 17 and 18. |
