Patent ID: 8641377
Filing Date: 2014-02-04
Classification: F01D,F05D

Abstract:
1. An industrial engine turbine rotor blade comprising: an airfoil extending from a platform; the platform having a leading edge side and a trailing edge side and a suction side and a pressure side; a plurality of leading edge side cooling air supply holes on the suction side of the platform and connected to a dead rim cavity; a plurality of trailing edge side cooling air supply holes on the suction side of the platform and connected to the dead rim cavity; the leading edge side cooling air supply holes are each connected to a leading edge suction side cooling hole formed within the platform; the trailing edge side cooling air supply holes are each connected to a trailing edge suction side cooling hole formed within the platform; a leading edge side cooling channel extending along substantially an entire length of the leading edge side of the platform; a trailing edge side cooling channel extending along substantially an entire length of the trailing edge side of the platform; the leading edge suction side cooling holes open into the leading edge side cooling channel; the trailing edge suction side cooling holes open into the trailing edge side cooling channel; a leading edge pressure side cooling channel formed within the platform and connected to the leading edge side cooling channel; a trailing edge pressure side cooling channel formed within the platform and connected to the trailing edge side cooling channel; the leading edge pressure side cooling channel and the trailing edge pressure side cooling channel both follow a contour of the pressure side airfoil; a row of smaller diameter cooling holes formed within the platform and connected to the leading edge pressure side cooling channel and the trailing edge pressure side cooling channel; and the row of smaller diameter cooling holes open onto a pressure side mate-face of the platform and extend from the leading edge pressure side cooling channel to the trailing edge pressure side cooling channel.