| 摘要 |
<p>A blade for a turbine engine includes structure providing spaced apart suction and pressure sides (40,42). A cooling passage (44) includes a first passageway (48) near the pressure side (42) and a second passageway (52,56) in fluid communication with the first passageway (48). The second passageway (52,56) is arranged between the first passageway (48) and the suction side (40). The cooling passage (44) provides a serpentine cooling path that is arranged in a direction transverse from a chord extending between trailing and leading edges (36,38) of the blade. During use, cooling fluid is supplied to the pressure side (42) through first cooling apertures (60) fluidly connected to the first passageway (48) and to the suction side (40) through second cooling apertures (62) fluidly connected to the other passage way (52,56). The first passageway (48) is at a higher pressure that then second passageway (52,56) so that cooling fluid is provided by the cooling passage (44) to the pressure and suction sides (40,42) in a balanced fashion.</p> |
