Blade made of composite material and having an enhanced erosion protection film, and associated protection method
AssigneeSafran Aircraft Engines
InventorsMathieu Julien CHARLAS, Mehdi BAJULAZ, Alexandre ALU
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Abstract
A turbomachine blade including a blade body made of fiber-reinforced organic matrix composite material, the blade body having a pressure side and a head provided with an apex; an erosion protection film which is made of a thermoplastic polymer and adhered to the blade body; a reinforcement layer which is made of a thermosetting polymer and positioned on the erosion protection film on the head of the blade.
Claims9
A turbomachine blade, comprising:
- a blade body of fibre-reinforced organic matrix composite material, the blade body having a pressure side and a head provided with an apex;
- an erosion protective film of a thermoplastic polymer, bonded to the blade body;
- wherein the blade further comprises, on its head, a reinforcing layer of a thermosetting polymer, positioned on the erosion protective film.
A method for protecting a turbomachine blade against erosion, the blade comprising a blade body of fibre-reinforced organic matrix composite material, the body having a pressure side and a head provided with an apex, the method comprising the following successive steps of:
- a) assembling, by bonding, an erosion protective film of a thermoplastic polymer on the blade body;
- b) applying a reinforcing layer of a thermosetting polymer to the head of the blade body, so that the reinforcing layer is positioned on the protective film.
Dependencies are inferred from the claim text.