Method for producing a propeller blade from a composite material

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United States of America Patent

PATENT NO 9457435
SERIAL NO

14374670

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Abstract

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A propeller blade, which can belong to a fan without covering by an external casing, includes two portions fitted into one another and of different materials, generally composite, to resist various stresses, heating coming from a rotor or impacts of solid bodies. An internal portion includes a blade core, a blade shank and possibly a foam lining, and a preform of an outside portion is assembled to it by surrounding it closely before being completely formed by receiving its resin, which is placed into polymerization. A method for producing the propeller blade guarantees good assembly of the portions without defects of form, damage or deformation of a fiber weave.

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Patent Owner(s)

Patent OwnerAddress
SAFRAN AIRCRAFT ENGINES2 BOULEVARD DU GÉNÉRAL MARTIAL VALIN PARIS 75015

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Foussard, Olivier Etiolles, FR 5 4
Marchal, Yann Melun, FR 18 98
Mathon, Richard Brunoy, FR 22 97
Varin, Franck Bernard Leon Voulangis, FR 7 28

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