Patent ID: 6932573
Filing Date: 2005-08-23
Classification: F01D

Abstract:
1. A turbine blade, comprising: a generally elongated blade having a leading edge, a trailing edge, and a tip at a first end, a root coupled to the blade at an end generally opposite the first end for supporting the blade and for coupling the blade to a disc, and at least one cavity forming a cooling system in the blade; at least one rib positioned in the at least one cavity to form a generally elongated cavity along at least a portion of the trailing edge of the blade by dividing the at least one cavity into a trailing edge cavity and a body cavity; wherein the at least one rib includes at least one orifice formed from at least one opening in an upstream surface of the at least one rib that extends through the at least one rib to at least one opening in a downstream surface of the at least one rib; wherein the at least one opening in the downstream surface of the at least one rib is positioned adjacent to a vortex forming surface; and wherein the trailing edge includes at least one orifice in an outer wall of the blade extending from the trailing edge cavity.