Patent ID: 7901182
Filing Date: 2011-03-08
Classification: F01D,F05D

Abstract:
1. A turbine blade comprising: an outer wall extending from a blade root to a blade tip, said outer wall comprising a pressure sidewall and a suction sidewall, said pressure and suction sidewalls connected at chordally spaced leading and trailing edges; a cooling cavity defined between said pressure and suction sidewalls; a pressure side inner wall extending radially within said cooling cavity from a location adjacent said blade root toward said blade tip and defining a pressure side near wall chamber; a suction side inner wall extending radially within said cooling cavity from a location adjacent said blade root toward said blade tip and defining a suction side near wall chamber; said suction side inner wall intersecting said pressure side inner wall at an intermediate location between said blade root and said blade tip; a plurality of pressure side channels extending radially from said intermediate location to a tip passage at said blade tip for connecting said pressure side near wall chamber in fluid communication with said tip passage; and a plurality of suction side channels extending radially from said intermediate location to said blade tip passage for connecting said suction side near wall chamber in fluid communication with said tip passage.