Variable-pitch vane made of composite material for an unducted fan of an aircraft
AssigneeSafran Aircraft Engines
InventorVincent Joudon
Life of this patent
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Abstract
A variable-pitch vane made of a composite material for an unducted fan of an aircraft, the vane including a fibrous reinforcement formed as a single piece of three-dimensional fabric obtained by three-dimensional weaving including an airfoil portion and a root portion forming a retaining bulb and intended to be connected to a variable-pitch mechanism, the three-dimensional weaving being carried out continuously between the root portion and the airfoil portion, the fibrous reinforcement defining an internal shaping cavity formed by a separation extending inside the root portion and the blade portion, wherein a matrix densifies the fibrous reinforcement and reinforcing metal shells are arranged around the root portion.
Claims10
A variable-pitch blade made of composite material for an unducted fan of an aircraft, comprising:
- a fibrous reinforcement, formed as a single piece of three-dimensional fabric obtained by three-dimensional weaving, comprising an airfoil portion, and a root portion forming a retaining bulb and intended to be connected to a variable pitch mechanism, the three-dimensional weaving being accomplished continuously between the root portion and the airfoil portion, the fibrous reinforcement defining an internal shaping cavity, formed by a non-interlinking extending inside the root portion and the airfoil portion,
- a matrix densifying said fibrous reinforcement, and
- metal reinforcing shells applied around the root portion.
Dependencies are inferred from the claim text.