| 摘要 |
According to the present invention, a rotor blade and a method for cooling a rotor blade is provided. The rotor blade includes a root and a hollow airfoil having a cavity defined by suction side wall, a pressure side wall, a leading edge, a trailing edge, a base, and a tip. An internal passage configuration is disposed within the cavity. The configuration includes a serpentine passage having at least three radial segments connected to one another, an axially extending passage disposed between the tip and the serpentine passage, at least one aperture extending between the last radial segment and the axially extending passage, and one or more sink apertures disposed within one of the suction side wall or the pressure side wall of the last radial segment of the serpentine passage. At least one conduit is disposed within the root. The conduit is operable to permit airflow through the root and into the internal passage configuration.
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