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.

Date of Patent:
Jul. 04, 2017

Filed:

Jan. 28, 2013
Applicant:

Snecma, Paris, FR;

Inventors:

Frederic Pouzadoux, Melun, FR;

Beatrice Nathalie Bois, Evry Gregy sur Yerres, FR;

Jean-Michel Roux, Charenton le Pont, FR;

Florent Till, Fontainebleau, FR;

Assignee:

SNECMA, Paris, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); F04D 29/32 (2006.01);
U.S. Cl.
CPC ...
F01D 5/147 (2013.01); F01D 5/141 (2013.01); F04D 29/324 (2013.01); F05D 2220/36 (2013.01); F05D 2240/303 (2013.01); F05D 2240/304 (2013.01); F05D 2250/183 (2013.01); F05D 2250/71 (2013.01); Y02T 50/673 (2013.01);
Abstract

A turbojet fan blade in which a leading edge presents a sweep angle greater than or equal to +28° in a portion of the blade that is situated at a radial height lying in a range of 60% to 90% of a total radial height of the blade measured from its root towards its tip, and the leading-edge sweep angle presents a difference of less than 10° between a minimum sweep angle measured at a radial height of minimum sweep angle situated in the portion of the blade lying in a range of 20% to 90% of the radial height of the blade, and a sweep angle measured at a radial height that is 10% greater than the radial height of minimum sweep angle.


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