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:
Dec. 28, 2021
Filed:
Apr. 24, 2019
Applicant:
Safran Aircraft Engines, Paris, FR;
Inventors:
Laurent Jablonski, Moissy-Cramayel, FR;
Philippe Gérard Edmond Joly, Moissy-Cramayel, FR;
Christophe Perdrigeon, Moissy-Cramayel, FR;
Damien Merlot, Moissy-Cramayel, FR;
Hervé Pohier, Moissy-Cramayel, FR;
Assignee:
Safran Aircraft Engines, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/32 (2006.01); F01D 5/34 (2006.01); F01D 5/14 (2006.01); F01D 5/30 (2006.01); F01D 5/32 (2006.01); F04D 19/00 (2006.01); F04D 29/02 (2006.01); F04D 29/053 (2006.01); F04D 29/38 (2006.01);
U.S. Cl.
CPC ...
F04D 29/329 (2013.01); F01D 5/14 (2013.01); F01D 5/30 (2013.01); F01D 5/303 (2013.01); F01D 5/3053 (2013.01); F01D 5/3069 (2013.01); F01D 5/32 (2013.01); F01D 5/323 (2013.01); F01D 5/34 (2013.01); F04D 19/002 (2013.01); F04D 29/023 (2013.01); F04D 29/053 (2013.01); F04D 29/322 (2013.01); F04D 29/38 (2013.01); F05D 2220/36 (2013.01); Y02T 50/60 (2013.01);
Abstract
The invention proposes a fan, in particular for a turbomachine of small size such as a jet engine, having a hub ratio which corresponds to the ratio of the diameter of the inner limit of the incoming air stream at the radially inner ends of the leading edges of the fan blades, divided by the diameter of the circle around which the outer ends of the fan blades pass, having a value of between 0.20 and 0.265.