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AssigneeSafran Aircraft Engines
InventorsSon LE HONG, Roland José Yann MORTIER, Antoine PHELIPPEAU
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A method of fabricating a gas turbine casing out of composite material of varying thickness, the method including making a strip-shaped fiber texture by three-dimensional weaving; winding the fiber texture as a plurality of superposed layers onto a mandrel of profile corresponding to the profile of the casing that is to be fabricated, so as to obtain a fiber preform of shape corresponding to the shape of the casing that is to be fabricated; and densifying the fiber preform with a matrix; wherein, before beginning to wind the fiber texture onto the mandrel, a reinforcing band of width smaller than the width of the fiber texture is placed on the mandrel in a zone that is to form a retention zone of the casing.
A method of fabricating a gas turbine casing out of composite material of varying thickness, the method comprising:
A casing for a gas turbine fan, the casing being made of composite material having varying thickness and comprising a fiber preform that comprises a plurality of superposed layers of a fiber texture in the form of a strip presenting three-dimensional weaving, said fiber preform being densified by a matrix, wherein a reinforcing band is present on the inside surface of the casing, the reinforcing band presenting width less than the width of the fiber texture and defining a retention zone of the casing, wherein the reinforcing band has a section of trapezoidal shape.
Dependencies are inferred from the claim text.