| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine blade mounting structure capable of adjusting a flow rate of a fluid for cooling flowing to a disc side.SOLUTION: When a disc 22 rotationally drives, a centrifugal force acts on a shield member 33, and the shield member 33 is pulled to an outer peripheral side. A guided surface 33e of the shield member 33 comes into contact with and is pressed against a guide surface 42b of a support part 34. As the guide surface 42b and the guided surface 33e spread to the outer peripheral side as they go toward the downstream side from the upstream side, when the guided surface 33e of the shield member 33 comes into contact with and is pressed against the guide surface 42b of the support part 34, the guided surface 33e moves along the guide surface 42b, and it moves not only toward the outer peripheral side but also toward the downstream side. Thereby, the shield member 33 is pressed against a fitting part 31 in a state of covering a gap GP2 between the disc 22 and a turbine blade in the fitting part 31.SELECTED DRAWING: Figure 4 |
