STRUCTURAL CONFIGURATIONS AND COOLING CIRCUITS IN TURBINE BLADES

摘要

PROBLEM TO BE SOLVED: To cool an airfoil.SOLUTION: A turbine blade comprises an airfoil defined by a concave pressure side outer wall and a convex suction side outer wall that connect along leading and trailing edges and form between the outer walls a radially extending chamber for receiving a flow of a coolant. The turbine blade may further include: a rib configuration that partitions the chamber into radially extending flow passages that include a first flow passage and a second flow passage; and a crossover passage that fluidly connects an inlet formed in the first flow passage to an outlet formed in the second flow passage. The crossover passage may include a canted configuration relative to the second flow passage.