公开(公告)号：US07273353B2

公开(公告)日：2007-09-25

申请号：US11503779

申请日：2006-08-14

申请人： Bryan P. Dube ,  Richard H. Page

发明人： Bryan P. Dube ,  Richard H. Page

IPC分类号： F01D11/12

CPC分类号： F01D11/127 ,  F01D5/225 ,  F05B2240/33

摘要： A turbine blade for use in a gas turbine engine is provided. The turbine blade includes an airfoil portion having a tip end, a shroud attached to the tip end, which shroud has an outer surface, and a knife edge attached to an outer surface of the shroud. The knife edge has a pair of cutter blades disposed substantially over an axis of the airfoil portion.