The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2024
Filed:
Jun. 07, 2022
Safran Aircraft Engines, Paris, FR;
Celia Iglesias Cano, Moissy-Cramayel, FR;
Lucas Antoine Christophe Lauwick, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
A fibrous preform of a turbomachine vane or blade includes two fibrous portions formed by three-dimensional weaving and forming an aerodynamic profile of the vane or blade and defining therebetween an interior volume, wherein each fibrous portion has at least one fibrous vibration damping stiffener including one or several unidirectional layers of yarns and present in the interior volume, and wherein the at least one fibrous stiffener is present on a non-interlinked area on which the unidirectional layer(s) of yarns are separated from the corresponding fibrous portion, and wherein the yarns of this or these unidirectional layers are woven with the corresponding fibrous portion outside the non-interlinked area, or wherein the at least one fibrous stiffener is added onto each fibrous portion.