Turbine airfoil
AssigneeTeledyne Industries, Inc.
InventorJack L. Readnour
Life of this patent
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Abstract
A turbine airfoil, such as a turbine blade or nozzle vane, is disclosed for use in a high temperature environment. The airfoil comprises a center post and at least one side piece. The side piece is attached to the center post so that, at room temperature, a clearance between the center post and the side piece permits limited relative movement between the post and side piece. This clearance space, however, is dimensioned so that at the operating temperature of the turbine, thermal expansion of the center post and/or side piece substantially eliminates the clearance as well as the limited movement between the center post and side piece.
Claims10
A turbine airfoil for use in a high temperature environment comprising:
- a center post,
- at least one side piece,
- means for loosely attaching said side piece to said center post so that said side piece is carried by said center post and so that, at room temperature, a clearance between said center post and said side piece permits limited relative movement between said center post and said side piece, said clearance being dimensioned so that, at said high temperature, thermal expansion of said center post and/or said piece substantially eliminates said clearance and said limited relative movements between said center post and said side piece.
Dependencies are inferred from the claim text.