Multiple piece turbine airfoil

Details Multiple piece turbine airfoil Multiple piece turbine airfoil

2009-05-19

2010-11-09

Verdier, Christopher (Department: 3745)

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

C415S116000, C415S136000, C415S138000, C416S09600A, C416S09700R, C416S226000

Reexamination Certificate

active

07828515

ABSTRACT:
A turbine airfoil, such as a rotor blade or a stator vane, for a gas turbine engine, the airfoil formed as a shell and spar construction with a plurality of hook shaped struts each mounted within channels extending in a spanwise direction of the spar and the shell to allow for relative motion between the spar and shell in the airfoil chordwise direction while also fanning a seal between adjacent cooling channels. The struts provide the seal as well as prevent bulging of the shell from the spar due to the cooling air pressure. The hook struts have a hooked shaped end and a rounded shaped end in order to insert the struts into the spar.

REFERENCES:
patent: 3644060 (1972-02-01), Bryan
patent: 4573872 (1986-03-01), Nakata
patent: 4786234 (1988-11-01), Readnour
patent: 6120244 (2000-09-01), Fukura
patent: 6224339 (2001-05-01), Rhodes et al.
patent: 7080971 (2006-07-01), Wilson et al.
patent: 7247002 (2007-07-01), Albrecht et al.

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