| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas turbine having a structure for effectively cooling a tip part of a moving blade of the small gas turbine. SOLUTION: A cooling hole of a tip surface is arranged in a position near the positive pressure side. Since there is a flow to the negative pressure side from the positive pressure side on the tip surface, such a cooling hole further uniformly cools the tip surface. An inclination is formed in a rear edge part of an outer shroud and a front edge part of a divided ring so as to guide air on the outer peripheral side of the outer shroud of a stationary blade to the tip surface side of the moving blade adjacent to the rear stage side. A slot is arranged in the divided ring so that air on the outer peripheral side of the divided ring cools the tip surface of the moving blade. A projection for blocking up clearance for delaying a flow speed of the air of the tip surface, is arranged in a seal piece between the adjacent divided rings. COPYRIGHT: (C)2006,JPO&NCIPI
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