Blade made of thermoplastic composite, in particular for ducted

Details Blade made of thermoplastic composite, in particular for ducted Blade made of thermoplastic composite, in particular for ducted

1993-12-14

1995-10-03

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

416168R, 416226, 416230, 416239, 2988971, 264250, 264257, 264261, 264275, B64C 2748

Patent

active

054546931

ABSTRACT:
The blade has its lower-surface and upper-surface skins of its shell, its front and rear filling bodies and its spar made of a composite material having the same thermoplastic matrix, preferably made of PEEK, reinforced preferably with carbon fibres. The spar is extended outside the shell by an integrated rooting part with linkage attachment, in a loop or laminate, in the same thermoplastic composite. The method consists in assembling the spar with the skins, after manufacturing these components in the form of prefabricated elementary pieces, by injecting under pressure a fluidized thermoplastic composite with short reinforcing fibres moulding the filling bodies.

REFERENCES:
patent: 3594097 (1971-07-01), Mouille et al.
patent: 4299538 (1981-11-01), Ferris et al.
patent: 4626172 (1986-12-01), Mouille et al.
patent: 4626173 (1986-12-01), Mouille et al.
patent: 4639284 (1987-01-01), Mouille et al.
patent: 4815940 (1989-03-01), LeShane et al.
patent: 4892462 (1990-01-01), Barbier et al.
patent: 4990205 (1991-02-01), Barbier et al.
patent: 5042968 (1991-08-01), Fecto
patent: 5074753 (1991-12-01), Covington et al.
patent: 5375324 (1994-12-01), Wallace et al.
patent: 5378109 (1995-01-01), Lallo et al.
Design Engineering--Jul. 1987--232--London--pp. 49-51.

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