Turbine blade attachment.

摘要

A root portion (13) of a side entry turbine blade (11) and steeples (110) that form attachment grooves (19) in a turbine rotor (21) have decreased land width projections wt, wm, and wb and increased fillet radii rt, rm and bm associated with each tang (31, 36 and 43 and 118, 124 and 130) on the turbine blade root (13) and steeples (110) to more uniformly distribute stress levels among the blade root and steeple tangs (31, 36 and 43 and 118, 124 and 130) and reduce breakage of cutting tools during the manufacture of the attachment grooves (19) in the turbine rotor (21).