公开(公告)号：SG127789A1

公开(公告)日：2006-12-29

申请号：SG200601656

申请日：2006-03-14

Applicant: UNITED TECHNOLOGIES CORP

Inventor： CUNHA FRANK J ,  COUCH ERIC ,  SANTELER KEITH A ,  GAYMAN SCOTT W ,  HUDSON ERIC A ,  JOE CHRISTOPHER ,  LETIZIA ERIC

Abstract: An airfoil assembly includes an airfoil extending away from a platform. One or more cooling circuits are formed through the platform in order to provide cooling of the platform. The cooling circuit may include a downwardly directed inlet receiving cooling air from below the platform. The cooling air is then directed in a direction generally parallel to the outer surface of the platform and through exits formed through the outer surface of the platform. The cooling circuit may optionally include a plurality of pedestals extending from an outer wall to an inner wall of the cooling circuit to increase the rigidity and the cooling function of the cooling circuit.