Composite fan blade

Details Composite fan blade Composite fan blade

1992-02-25

1993-08-31

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Laminated, embedded member or encased material

416230, 416224, B63H 702

Patent

active

052403777

ABSTRACT:
A composite fan blade comprises a blade portion (12) formed from a first set of unidirectional layers of fibers (110) wrapped around a wedge shape bushing (16). A blade platform (14) comprising a second set of unidirectional fiber layers (114) filled with a resin filler (116) is pressure molded with the blade (12) and bushing (16) to form a desired blade shape. The blade is then hinge mounted to a metallic blade support disk (18). The blade of the present invention provides a strong, lightweight fan blade for small, high speed propfan turbine engines.

REFERENCES:
patent: 1946129 (1934-02-01), Cebulski
patent: 2796215 (1957-06-01), Warnken
patent: 2868439 (1959-01-01), Hampshire et al.
patent: 2929755 (1960-03-01), Porter
patent: 3737250 (1973-06-01), Pilpel et al.
patent: 4966527 (1990-10-01), Merz
patent: 5022824 (1991-06-01), Violette et al.
patent: 5102302 (1992-04-01), Schilling et al.

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