Patent ID: 8678766
Filing Date: 2014-03-25
Classification: F01D,F05D

Abstract:
1. A turbine rotor blade comprising: an airfoil wall with a pressure side wall and a suction side wall; a cooling air collector cavity formed within the airfoil wall; a blade root with a cooling air supply cavity; a blade tip floor; an upward flowing near wall cooling channel formed in the pressure side wall and the suction side wall and connected to the cooling air supply cavity; a downward flowing near wall cooling channel formed in the pressure side wall and the suction side wall and adjacent to the upward flowing near wall cooling channel; tip floor near wall cooling channels with turn channels formed in the blade tip floor; the tip floor near wall cooling channels connecting the upward flowing near wall cooling channels to the downward flowing near wall cooling channels; the downward flowing near wall cooling channels connected to the cooling air collector cavity; and, a row of exit holes in the trailing edge region connected to the cooling air collector cavity.