Gas turbine rotor blade

Details Gas turbine rotor blade Gas turbine rotor blade

F - Mech Eng,Light,Heat,Weapons

01

D

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

Patent

CA 2254230

Provided is a gas turbine rotor blade comprising a plurality of first cooling holes for flow of a cooling gas bored in a blade portion along its lengthwise direction and a plurality of second cooling holes for flow of the cooling gas bored in a shroud along its plane direction so as to communicate with the first cooling holes, and being constructed such that the cooling gas can be flown in a uniform distribution. The plurality of the first cooling holes 3 for flow of the cooling gas are bored in the blade portion 2 and the plurality of the second cooling holes 5 for flow of the cooling gas are bored in the shroud 1 along its plane direction. The second cooling holes 5 communicate with the first cooling holes 3, hole to hole, via two-step holes 4, and the second cooling holes 5 are bored alternately on the dorsal side and the ventral side of the rotor blade. -12-

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