Hollow fan blade for gas turbine engine

Details Hollow fan blade for gas turbine engine Hollow fan blade for gas turbine engine

2006-02-07

2006-02-07

Nguyen, Ninh H. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Hollow

Reexamination Certificate

active

06994524

ABSTRACT:
Hollow fan blades for turbo fan gas turbine engines are formed of two separate detail halves. Each detail half has a plurality of cavities and ribs machined out to reduce weight. These detail halves are subsequently bonded and given an airfoil shape in the forming operation. In the present invention, the ribs are oriented biased to provide stiffness as needed in different sections of the fan blade with smooth transitions between regions. The result is a blade with good protection from a wide spectrum of external threats.

REFERENCES:
patent: 5957658 (1999-09-01), Kasprow et al.
patent: 5997251 (1999-12-01), Lee
patent: 6099252 (2000-08-01), Manning et al.
patent: 6146099 (2000-11-01), Zipps et al.
patent: 6607355 (2003-08-01), Cunha et al.
patent: 6637186 (2003-10-01), Van Duyn
Joe Adams, Tomorrow's Technology Today Pratt & Whitney's Vision for the Future, Nov. 6, 2001, pp. 1-21.
U.S. Patent Application: “Hollow Fan Blade for Gas Turbine Engine”, U.S Appl. No. 10/765,593; filed Jan. 26, 2004.
U.S. Patent Application: “Hollow Fan Blade for Gas Turbine Engine”, U.S Appl. No. 10/765,591; filed Jan. 26, 2004.
U.S. Patent Application: “Hollow Fan Blade for Gas Turbine Engine”, U.S Appl. No. 10/765,592; filed Jan. 26, 2004.
U.S. Patent Application: “Hollow Fan Blade for Gas Turbine Engine”, U.S Appl. No. 10/765,541; filed Jan. 26, 2004.

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