Patent ID: 8297926
Filing Date: 2012-10-30
Classification: F01D,F05D

Abstract:
1. A turbine blade, comprising: a blade airfoil, comprising: a plurality of cone-shaped cooling elements extending from a wall section into the cooling passage, wherein a respective length of the cooling elements varies based on a radial height of the respective cooling element along the wall section; wherein the wall section forms a border between the cooling passage and the leading edge and wherein the wall section comprises a wall surface facing the cooling passage, said wall surface having a curvature, wherein impingement cooling of the wall section is provided, and wherein the plurality of cooling elements have a longitudinal region which extends into the cooling passage, wherein the plurality of cooling elements are oriented each with the longitudinal region towards a center of the curvature of the wall surface such that the respective length of each cooling element is measured toward the center of the curvature of the wall surface and the respective length of each cooling element is adapted to a predetermined local cooling requirement.