Patent ID: 8231330
Filing Date: 2012-07-31
Classification: F01D,F05D

Abstract:
1. An air cooled turbine rotor blade comprising: an airfoil having a leading edge and a trailing edge; the airfoil having a pressure side wall and a suction side wall both extending between the leading edge and the trailing edge; a row of exit slots arranged along the pressure side wall of the airfoil adjacent to the trailing edge region of the airfoil; the row of exit slots extending from adjacent to a platform of the blade to adjacent to a tip of the blade; the row of exit slots including an upper span section of slots, a mid-span section of slots and a lower span section of slot; and, the upper span exit slots discharging film cooling air in a direction toward the blade tip, the mid-span exit slots discharging film cooling air in a chordwise direction of the airfoil, and the lower span exit slots discharging film cooling air in a direction toward the platform.