VANE CLUSTER PROVIDED WITH COATED METALLIC SUBSTRATE, METHOD FOR MANUFACTURING VANE CLUSTER, AND METHOD FOR DESIGNING VANE CLUSTER

摘要

PPROBLEM TO BE SOLVED: To provide a method for locally cooling a region where thickness of coating is thin in a coated vane cluster. PSOLUTION: A vane cluster has a coated metallic substrate. The cluster includes a platform and a shroud. At least first and second airfoils 62, 64 extend between an outer face of the platform and an inner face of the shroud. Each airfoil has a pressure side and a suction side. The pressure side of the first airfoil 62 faces the suction side of the second airfoil. At least a first side selected from the pressure side of the first airfoil 62 and the suction side of the second airfoil 64 includes a first region with a local thinning or gap in the coating. Along the first side, a cooling passageway system includes means for locally cooling the first region. PCOPYRIGHT: (C)2008,JPO&INPIT