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:
Jun. 02, 2020
Filed:
Apr. 25, 2016
Safran Aircraft Engines, Paris, FR;
Sébastien Emile Philippe Tajan, Sucy en Brie, FR;
Adrien Jacques Philippe Fabre, Montrouge, FR;
Adrien Louis Nicolas Laurenceau, Melun, FR;
Jonathan Evert Vlastuin, Paris, FR;
Laurence Francine Vion, Paris, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
The invention relates to an unducted-fan aircraft engine comprising a generally cylindrical nacelle through which a primary jet flows, the nacelle bearing a fan rotor comprising variable-pitch vanes () located radially outside the nacelle in order to be traversed by a secondary jet () flowing longitudinally around the nacelle. The rotor comprises a hub bearing variable-pitch vane supports each carrying one vane (), each vane () comprising a blade extending from a root that is used to removably attach same to a base of the associated support (). Each base () is located radially outside the nacelle so that it is in the secondary jet, and each assembly formed by a base () and the vane root supported by the base () is surrounded and covered by a detachable aerodynamic cover ().