Steam turbine blade having areas of different densities

Details Steam turbine blade having areas of different densities Steam turbine blade having areas of different densities

1997-09-18

1999-08-03

Verdier, Christopher

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Laminated, embedded member or encased material

416230, F01D 528

Patent

active

059316411

ABSTRACT:
A lightweight steam turbine blade includes a metallic airfoil portion with at least one surface recess containing a void volume having adjacent first and second regions. Filler material is placed in and bonded to the surface recess and generally completely fills the void volume. The filler material in the first region has a higher average modulus of elasticity than that of the filler material in the second region.

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patent: 5655883 (1997-08-01), Schilling
patent: 5839882 (1998-11-01), Finn et al.

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