Co-cured composite fan blade and method

Details Co-cured composite fan blade and method Co-cured composite fan blade and method

1991-08-28

1995-01-03

Brown, David

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Formed with main spar

156245, B64C 2746, B23P 1504

Patent

active

053781090

ABSTRACT:
This invention relates to an aerodynamic blade assembly and method by which the blade is formed in a single cure cycle. A foam core having an aerodynamic shape is provided on which an inner spar wrap member, an upper spar pack member, a lower spar pack member, a lower outer spar wrap member, an upper outer spar wrap member, a leading edge block and a trailing edge wedge are laid-up from fiber-reinforced composite material. The total lay-up assembly with the core is placed in a mold tool and the tool heated to thereby cure and structuralize the total lay-up assembly to form the blade.

REFERENCES:
patent: 3552881 (1971-01-01), Rogers et al.
patent: 3967996 (1976-07-01), Kamov et al.
patent: 4095322 (1978-06-01), Scarpati et al.
patent: 4188171 (1980-02-01), Baskin
patent: 4247255 (1981-01-01), De Rosa
patent: 4298417 (1981-11-01), Euler et al.
patent: 4650534 (1987-03-01), Mussi
patent: 4806077 (1989-02-01), Bost

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