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. 14, 2025
Filed:
Nov. 29, 2022
Applicant:
Safran Aircraft Engines, Paris, FR;
Inventor:
Matthieu Pierre Michel Dubosc, Moissy-Cramayel, FR;
Assignee:
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); B64C 11/18 (2006.01);
U.S. Cl.
CPC ...
B64C 11/18 (2013.01); F01D 5/147 (2013.01); F01D 5/141 (2013.01); F05D 2240/303 (2013.01); F05D 2240/304 (2013.01);
Abstract
A blade for an unducted fan of a turbomachine includes an airfoil formed of plural airfoil sections that are stacked along an airfoil axis. A difference in sweeps corresponding to a difference between a leading edge sweep and a trailing edge sweep is negative, and substantially between −30° and 0°, for any airfoil section whose height is between 10% and 30% of an airfoil height of the airfoil, and is positive, and substantially between 0° and +40°, for any airfoil section whose height is between 50% and 90% of the airfoil height.