BLADE STRUCTURE FOR TURBINE

摘要

Provided is a turbine blade structure that is capable of suppressing quality variations of cast products during the manufacturing of turbine blades. A turbine blade structure
wherein the space inside an air foil (11) is divided into a plurality of cavities (C1)-(C4), partitioned by rib members (12) provided substantially perpendicular to the center line connecting a leading edge (LE) and a trailing edge (TE), is provided with partition members (20) that partition the inside of the cavities (C2) and (C3) located in the central portion of the blade, excluding the blade leading-edge side and the blade trailing-edge side, into blade pressure side cavities (C2a) and (C3a) and blade suction side cavities (C2b) and (C3b) substantially along the center line, wherein blade leading-edge end portions (21) and blade trailing-edge end portions (22) of the partition members (20) are inserted from one shroud surface side to the other shroud surface side along engagement grooves (13) formed on the rib members (12).