Blade comprising lands with a stiffener
AssigneeSafran Aircraft Engines
InventorsCaroline Jacqueline Denise Berdou, Thomas Alain De Gaillard
Life of this patent
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Abstract
A preform for a turbine engine blade, the preform comprising a main fiber preform obtained by three-dimensional weaving and comprising a first longitudinal segment suitable for forming a blade root (21), a second longitudinal segment extending the first longitudinal segment upwards, and suitable for forming an airfoil portion (22), and a first transverse segment extending transversely from the junction between the first and second longitudinal segments, and suitable for forming a first platform (23), wherein the preform also includes at least one stiffener (40) fitted on the main fiber preform along at least a portion of the distal edge of the first transverse segment.
Claims15
A preform for a turbine engine blade, the preform comprising a main fiber preform obtained by three-dimensional weaving and comprising:
- a first longitudinal segment suitable for forming a blade root;
- a second longitudinal segment extending the first longitudinal segment upwards, and suitable for forming an airfoil portion;
- and
- a first transverse segment extending transversely from the junction between the first and second longitudinal segments, and suitable for forming a first platform;
- wherein the preform also includes at least a stiffener fitted on the main fiber preform along at least a portion of the distal edge of the first transverse segment;
- and
- wherein the stiffener extends along the distal edge of the first transverse segment at least from its upstream or downstream end.
A blade for a turbine engine, comprising:
- a blade root;
- an airfoil portion extending upwards from the blade root;
- and
- a platform, made of composite material and extending transversely to the airfoil portion level with the junction between the blade root and the airfoil portion;
- wherein the platform has a stiffener extending along at least a portion of the distal edge of said platform;
- and
- wherein the stiffener extends along the distal edge of the platform at least from its upstream or downstream end.
A preform for a turbine engine blade, the preform comprising a main fiber preform obtained by three-dimensional weaving and comprising:
- a first longitudinal segment suitable for forming a blade root;
- a second longitudinal segment extending the first longitudinal segment upwards, and suitable for forming an airfoil portion;
- and
- a first transverse segment extending transversely from the junction between the first and second longitudinal segments, and suitable for forming a first platform,
- wherein the preform also includes at least a stiffener fitted on the main fiber preform along at least a portion of the distal edge of the first transverse segment, and
- wherein the stiffener is a cylinder, with the distal end of the first transverse segment being wound around the cylinder.
A blade for a turbine engine, comprising:
- a blade root;
- an airfoil portion extending upwards from the blade root;
- and
- a platform, made of composite material and extending transversely to the airfoil portion level with the junction between the blade root and the airfoil portion,
- wherein the platform has a stiffener extending along at least a portion of the distal edge of said platform, and
- wherein the stiffener is a cylinder, with the distal end of the platform being wound around the cylinder.
Dependencies are inferred from the claim text.