Triple circuit turbine blade

Details Triple circuit turbine blade Triple circuit turbine blade

F - Mech Eng,Light,Heat,Weapons

01

D

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

Patent

CA 2480985

A turbine blade (10) includes an airfoil (12) having pressure and suction sidewalk (20,22) extending between leading and trailing edges (24,26), and from root (28) to tip (30). A dovetail (14) is joined to the airfoil root (28) at a platform (16). Three internal cooling circuits (32,34,36) extend in span inside the airfoil (12), and each circuit includes a respective inlet channel (40,42,44) commencing in axially adjacent alignment in the dovetail (14). The inlet channels (40,42,44) twist together from the dovetail (14), through the platform (16), and into the airfoil (12) behind the leading edge (24) in transverse adjacent alignment across the sidewalls.

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