PROPELLER BLADE OR AIRFOIL WITH WOUND COMPOSITE ROOT
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Apr 20, 2023
filing date -
Apr 20, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
A turboprop engine blade or propeller airfoil made of composite material includes a fiber reinforcement densified by a matrix, the blade or propeller airfoil including along a longitudinal direction a root and an aerodynamic profile. The fiber reinforcement includes a fiber preform having a three-dimensional weave with a root preform part located in the root and an aerodynamic profile part located in the aerodynamic profile, the root preform and aerodynamic profile parts being connected to one another by three-dimensional weaving. The root preform part includes two woven skins wound around an insertion element.
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