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    • 7. 发明授权
    • Gas turbine blade
    • 燃气轮机叶片
    • US06257830B1
    • 2001-07-10
    • US09230983
    • 1999-06-02
    • Masaaki MatsuuraKiyoshi SuenagaSunao AokiKazuo UematsuHiroki FukunoYasuoki Tomita
    • Masaaki MatsuuraKiyoshi SuenagaSunao AokiKazuo UematsuHiroki FukunoYasuoki Tomita
    • F01D518
    • F01D5/147F01D5/187F05D2260/2322
    • In a steam cooling system proposed heretofore, high-pressure steam is supplied into an internal space of a blade for effecting cooling thereof with the high-pressure steam to thereby recover heat energy. This system however suffers from problems concerning the strength of the blade and the like. The present invention solves these problems and provides a gas-turbine blade which does not suffer from problems concerning the strength thereof nor problems concerning the flow of high-pressure steam. To this end, a coolant flow passage is formed within the blade extending in the longitudinal direction of the blade, and reinforcing ribs which interconnects a dorsal wall and a ventral wall of the blade is disposed within the coolant flow passage so as to extend in the flow direction of the coolant. Hence, the strength of the blade can be ensured without any obstacle to the flow of the coolant.
    • 在迄今为止提出的蒸汽冷却系统中,将高压蒸汽供应到叶片的内部空间中,以利用高压蒸汽冷却,从而回收热能。 然而,该系统存在关于叶片等的强度的问题。 本发明解决了这些问题,提供了一种不存在与强度相关的问题的燃气轮机叶片,也不会涉及高压蒸汽的流动问题。 为此,在刀片的纵向延伸的叶片内形成冷却剂流动通道,并且将与叶片的背壁和腹壁相互连接的加强筋设置在冷却剂流动通道内,以便在 冷却液的流动方向。 因此,可以确保叶片的强度,而不会妨碍冷却剂的流动。