| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling air slot that introduces cooling air to cool a rotor disk assembly (10) and a blade (57) of a gas turbine engine. SOLUTION: The cooling air slot (32) passes through a rim (22) nearly in a radial direction, is skewed circumferentially with respect to a center line (16) and is tilted rearward axially with respect to a normal radial (NR) perpendicular to the center line (16). In an illustrative embodiment of the invention, each cooling air slot (32) has parallel sidewall surfaces (36) and a rear wall surface (38) extending between the sidewall surfaces and is tilted rearward axially with respect to the normal radial (NR). The side wall surfaces (36) is skewed circumferentially by about 5°with respect to the center line (16), and the rear sidewall (38) is tilted rearward in axial direction by about 18°with respect to the normal radial (NR). COPYRIGHT: (C)2004,JPO
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