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. 31, 2018
Filed:
Dec. 05, 2013
Applicant:
Snecma, Paris, FR;
Inventors:
Jonathan Evert Vlastuin, Charenton, FR;
Clement Marcel Maurice Dejeu, Fontenailles, FR;
Assignee:
SNECMA, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 11/18 (2006.01); B64D 27/00 (2006.01); F01D 5/14 (2006.01); B64C 11/48 (2006.01);
U.S. Cl.
CPC ...
B64C 11/48 (2013.01); B64C 11/18 (2013.01); F01D 5/141 (2013.01); F01D 5/145 (2013.01); B64D 2027/005 (2013.01); F05D 2220/30 (2013.01); F05D 2240/30 (2013.01); F05D 2240/303 (2013.01); F05D 2240/307 (2013.01); Y02T 50/66 (2013.01); Y02T 50/673 (2013.01);
Abstract
A propeller blade extending radially between a blade root and a blade tip and having a leading edge and a trailing edge, together with a pressure side face and a suction side face. Along the leading edge, the angle (α) between the radial direction and a tangent to the leading edge passes through a local maximum zsituated in the range 60% to 80% of the height of the blade. Furthermore, the suction side face of the blade includes an indentation extending axially from the leading edge to the trailing edge and located at a height of the blade between the local maximum zand the blade tip.