Cooling system for gas turbine stator nozzles

Details Cooling system for gas turbine stator nozzles Cooling system for gas turbine stator nozzles

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 25/12 (2006.01) F01D 5/18 (2006.01) F01D 9/00 (2006.01)

Patent

CA 2363363

A cooling system for gas turbine stator nozzles, wherein each of the vanes (10) which belong to the nozzles of the said gas turbine has a concave surface (11) and an opposite convex surface (12), which co-operate in order to define the outer shape of the vane (10), and wherein the surface of the vane (10) has a plurality of cooling holes (13), at appropriate points of the surface itself of the vane (10). In this system, the cooling hole (17) relative to the outlet edge (16) of the vane (10), is provided with an intake section (18) and an outlet section (19), which are shaped such that the cooling hole (17) has a cross-section which is variable in a direction which is radial, relative to the said vane (10).

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