F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
F01D 5/18 (2006.01) F01D 25/12 (2006.01)
Patent
CA 2480989
A turbine blade (10) 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 (46) in the convex contour of the suction sidewall.
Heeg Robert John
Kumar Ganesh Nagab
Norton Brian Alan
Schmid Scott Joseph
Company General Electric
Craig Wilson And Company
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