| 摘要 |
A cooling system for gas turbine stator nozzles, wherein each of the vanes which belong to the nozzles of the gas turbine has a concave surface and an opposite convex surface, which cooperate in order to define the outer shape of the vane, and wherein the surface of the vane has a plurality of cooling holes, at appropriate points of the surface itself of the vane. In this system, the cooling hole relative to the outlet edge of the vane is provided with an intake section and an outlet section, which are shaped such that the cooling hole has a cross-section which is variable in a direction which is radial relative to the vane.
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