Patent ID: 9109451
Filing Date: 2015-08-18
Classification: B22F,F01D,F05D,Y02P

Abstract:
1. A turbine rotor blade comprising: an airfoil wall having an outer hot side and an inner cool side; a first row of micro sized near wall cooling channels extending along the airfoil from a platform section to a blade tip section; a second row of micro sized near wall cooling channels adjacent to and staggered from the first row of micro sized near wall cooling channels; a third row of micro sized near wall cooling channels adjacent to and staggered from the second row of micro sized near wall cooling channels; the first and second and third rows of micro sized near wall cooling channels extending from a trailing edge region along a pressure side wall and a suction side wall and around a leading edge region of the airfoil; and, the first and second and third rows of micro sized near wall cooling channels are formed in an outer section of the airfoil wall with a solid section on an inner section of the airfoil wall that forms a support for the airfoil.