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:
Jul. 09, 2024
Filed:
Feb. 12, 2021
Safran Aircraft Engines, Paris, FR;
Vivien Mickael Courtier, Moissy-Cramayel, FR;
Anthony Binder, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
The invention relates to a composite blade () for a turbine engine rotor, for example, an unducted propeller, comprising a skin () made of woven fibres forming the outer profile of the blade and an attachment () with cylindrical geometry in the direction of the span emerging from the blade root (), which attachment is intended to retain the blade () on a hub of the rotor, characterised in that it further comprises a spar () having a hollow tube structure made of braided carbon fibres, fixed to the attachment () and extending inside the skin () over at least part of the span of the blade (). The invention also relates to a propeller comprising said blade and to a method for manufacturing said blade.