COMPONENTS WITH COMPOUND ANGLED COOLING FEATURES AND METHODS OF MANUFACTURE

摘要

A hot gas path component including a substrate having an outer surface exposed to a stream of hot gases and an inner surface exposed to a cooling flow. One or more pair of cooling supply inlets is formed at the inner surface of the substrate for receiving the cooling air flow. One or more pair of cooling supply outlets is formed at the outer surface of the substrate for discharging the cooling air flow. A cooling flow channel extends through the substrate and between each of cooling supply inlets and the cooling supply outlets for permitting passage of the cooling air flow. Each pair of the one or more pair of cooling supply outlets is configured having complementary compound angles α and β, where α1 and α2 are injection angle components of the cooling flow discharged from each pair of the one or more pair of cooling supply outlets and β1 and β2 are compound transverse angle components of the cooling flow discharged from each pair of the one or more pair of cooling supply outlets, and wherein the transverse angle components β1 and β2 are of the same sign.

主权项

1. A hot gas path component comprising:
a substrate having an outer surface exposed to a stream of hot gases and an inner surface exposed to a cooling flow, the inner surface defining at least one interior space; and one or more pair of cooling supply inlets formed at the inner surface of the substrate for receiving the cooling air flow, one or more pair of cooling supply outlets formed at the outer surface of the substrate for discharging the cooling air flow, and a cooling flow channel extending through said substrate and between each of the cooling supply inlets and cooling supply outlets for permitting passage of the cooling air flow from the cooling supply inlets to the cooling supply outlets, wherein each pair of the one or more pair of cooling supply outlets are configured having complementary compound angles α and β, where α1 and α2 are injection angle components of the cooling flow discharged from each pair of the one or more pair of cooling supply outlets measured relative to the outer and inner surfaces of the substrate and β1 and β2 are compound transverse angle components of the cooling flow discharged from each pair of the one or more pair of cooling supply outlets on a plane along the outer surface and relative to a z-axis aligned relative to the flow direction of the external hot gases, and wherein the transverse angle components β1 and β2 are of the same sign.