| 摘要 |
A turbine bucket (10) includes a shank portion (16), an adjacent and radially inner dovetail mounting portion (12), an adjacent and radial outer airfoil portion (22), with a platform (20) at a radially inner end of said airfoil portion adjacent the shank portion, and an integral cover (24) at a radially outer tip of the airfoil portion, wherein the shank portion (16) is shaped to provide a torque zone (30) establishing a desired torque characteristic for the bucket to create, upon insertion into a dovetail groove on a turbine wheel, a desired contact pressure between the integral cover and adjacent covers in a row of similar buckets. |
