LEADING EDGE, METHOD OF MANUFACTURING COOLING SYSTEM, AND TURBINE ENGINE COMPONENT

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a cooling system generating an excellent cooling effect with the leading edge of an aerofoil portion in a turbine engine component. SOLUTION: The leading edge 10 of the aerofoil portion 12 in the turbine engine component has a plurality of leading edge slots arranged zigzag. Each leading edge slot 14 supplies a film of a cooling fluid to the outer surface of the aerofoil portion 12 through a center core element 21 and a plurality of curved passages 16 communicating with the center core element. Silica or an alumina core material is used to form the center core element 21, and a refractory metal core sheet is used to form the leading edge slots. The excellent cooling effect is generated by the leading edge slots. COPYRIGHT: (C)2007,JPO&INPIT