Hollow fan blade dovetail

Details Hollow fan blade dovetail Hollow fan blade dovetail

1994-02-22

1995-08-22

Kwon, John T.

Fluid reaction surfaces (i.e., impellers)

Miscellaneous

416223A, F01D 530

Patent

active

054433673

ABSTRACT:
A gas turbine engine fan blade having an airfoil portion and a dovetail root portion is enhanced by having spaced apart supporting ribs extend into the dovetail root portion. The supporting ribs define a plurality of hollow cavities extending into the dovetail root portion of the fan blade. The extended cavities reduce the weight of each blade and also improve the integrity of each blade.

REFERENCES:
patent: 4021138 (1977-05-01), Scalzo et al.
patent: 4815939 (1989-03-01), Doble
patent: 4898514 (1990-02-01), McCracken
patent: 5156526 (1992-10-01), Lee et al.

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