Turbine airfoil with weight reduction plenum

Details Turbine airfoil with weight reduction plenum Turbine airfoil with weight reduction plenum

2006-02-14

2008-08-19

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Hollow

C416S233000

Reexamination Certificate

active

07413409

ABSTRACT:
An airfoil for a gas turbine engine includes: opposed pressure and suction sidewalls extending between spaced-apart leading and trailing edges, a root, and a tip; and a hollow plenum disposed between the sidewalls. The plenum has a chordwise first dimension at a radially outer end thereof, and a chordwise second dimension at a radially inner end thereof. The second dimension is substantially less than the first dimension.

REFERENCES:
patent: 4364160 (1982-12-01), Eiswerth
patent: 5243758 (1993-09-01), LeMonds et al.
patent: 5253824 (1993-10-01), Halila et al.
patent: 5269058 (1993-12-01), Wiggs et al.
patent: 5441574 (1995-08-01), Hansen et al.
patent: 5469618 (1995-11-01), LeMonds et al.
patent: 6162347 (2000-12-01), Fleck
patent: 2005/0084380 (2005-04-01), Fett et al.

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