초록 ▼

A hollow airfoil is provided which includes a body having an external wall and an internal cavity. The external wall includes a suction side portion and a pressure side portion. The portions extend chordwise between a leading edge and a trailing edge and spanwise between an inner radial surface and

A hollow airfoil is provided which includes a body having an external wall and an internal cavity. The external wall includes a suction side portion and a pressure side portion. The portions extend chordwise between a leading edge and a trailing edge and spanwise between an inner radial surface and an outer radial surface. A stagnation line extends along the leading edge. A plurality of cooling apertures, disposed spanwise along the leading edge. According to one aspect of the present invention, the apertures extend through the external wall along a helical path. According to another aspect of the present invention, the apertures are alternately directed towards the suction side portion and the pressure side portions of the airfoil.

대표청구항 ▼

[ We claim:] [1.] A hollow airfoil, comprising:an internal cavity;an external wall, which includes a suction side portion and a pressure side portion, wherein said portions extend chordwise between a leading edge and a trailing edge and spanwise between an inner radial surface and an outer radial su

[ We claim:] [1.] A hollow airfoil, comprising:an internal cavity;an external wall, which includes a suction side portion and a pressure side portion, wherein said portions extend chordwise between a leading edge and a trailing edge and spanwise between an inner radial surface and an outer radial surface;wherein a stagnation line extends spanwise along said leading edge;a plurality of cooling apertures extending through said external wall along a path having a chordwise component and a spanwise component, wherein said cooling apertures are disposed along a line substantially coinciding with said stagnation line, and substantially all of said cooling apertures thereby coincide with said stagnation line.