Cooled turbine blade
A turbine blade includes an airfoil (12) having an internal cooling circuit (30) with a first flow passage (34) disposed directly behind the leading edge (22) followed by a second flow passage (36) separated therefrom by a corresponding bridge (38). The bridge (38) includes a row of impingement aper...
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Main Authors | , , , |
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Format | Patent |
Language | English French German |
Published |
16.03.2016
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Subjects | |
Online Access | Get full text |
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Summary: | A turbine blade includes an airfoil (12) having an internal cooling circuit (30) with a first flow passage (34) disposed directly behind the leading edge (22) followed by a second flow passage (36) separated therefrom by a corresponding bridge (38). The bridge (38) includes a row of impingement apertures (40) for cooling the leading edge. The suction sidewall (20) of the airfoil includes a row of diffusion film cooling first holes (42) extending in flow communication with the first passage (34). The first holes (42) have a compound inclination angle, with a quadrilateral cross section forming a generally teardrop shaped outlet in the convex contour of the suction sidewall. |
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Bibliography: | Application Number: EP20040255629 |