Patent ID: 8408872

Claim:
A turbine nozzle comprising: (a) a hollow, airfoil-shaped turbine vane; (b) an arcuate first band disposed at a first end of the turbine vane, the first band having a flowpath face adjacent the turbine vane, and an opposed back face; (c) wherein the back face includes at least one open pocket, the at least one pocket defined in part by a bottom wall recessed from the back face, opposed ends of the bottom wall merging with the back face, where the pocket is exposed to fluid flow in a predetermined direction of flow; and (d) a plurality of turbulators disposed on the bottom wall, each turbulator having: (i) an upright front face which generally faces the direction of flow, and (ii) a back face which defines a ramp-like shape tapering from the front face to the bottom wall of the pocket.