초록 ▼

A hollow airfoil is provided which includes a body, a trench, and a plurality of cooling apertures disposed within the trench. The body extends chordwise between a leading edge and a trailing edge, and spanwise between an outer radial surface and an inner radial surface, and includes an external wal

A hollow airfoil is provided which includes a body, a trench, and a plurality of cooling apertures disposed within the trench. The body extends chordwise between a leading edge and a trailing edge, and spanwise between an outer radial surface and an inner radial surface, and includes an external wall surrounding a cavity. The trench is disposed in the external wall along the leading edge, extends in a spanwise direction, and is aligned with a stagnation line extending along the leading edge.

대표청구항 ▼

[What is claimed is:] [1.]a body having an external wall surrounding an internal cavity and a spanwise extending leading edge;an open trench disposed in said external wall along said leading edge and extending in a spanwise direction, said trench having a first side wall, a second side wall, and a b

[What is claimed is:] [1.]a body having an external wall surrounding an internal cavity and a spanwise extending leading edge;an open trench disposed in said external wall along said leading edge and extending in a spanwise direction, said trench having a first side wall, a second side wall, and a base extending between said first and second side walls;wherein said side walls are sufficiently spaced apart such that under substantially all operating conditions said stagnation line is substantially disposed between said first and second side walls; anda plurality of cooling apertures disposed within said trench and extending through said external wall, thereby providing a cooling air passage between said internal cavity and said trench, each said cooling aperture having a diameter.