Patent ID: 8079815
Filing Date: 2011-12-20
Classification: F01D,F05D

Abstract:
1. A turbine blade, comprising: a tabular rib that partitions the turbine blade into a pressure side and a suction side, the tabular rib being provided along a center line connecting a leading edge and a trailing edge of the turbine blade and between the leading edge and the trailing edge; at least two cavities of which a cavity at the suction side and a cavity at the pressure side do not communicate with each other; a passage for cooling air supplied to the cavity at the pressure side and flowing out of a film-cooling hole at the pressure side of an air foil; and a passage for cooling air supplied to the cavity at the suction side and flowing out of a film-cooling hole at the suction side of the air foil, wherein the passage for cooling air supplied to the cavity at the pressure side and the passage for cooling air supplied to the cavity at the suction side are provided with pressure adjustment members, and the number of pressure adjustment members provided in the passage for cooling air at the pressure side is smaller than the number of pressure adjustment members provided in the passage for cooling air at the suction side.