logo

For the Inventor, By the Inventor

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.:

US 9593582 B1

PDFFull Text
Date of Patent:
Mar. 14, 2017

Filed:

Apr. 13, 2012

Propulsion device having unducted counter-rotating and coaxial rotors

Applicants:

Clement Marcel Maurice Dejeu, Fontenailles, FR;

Sebastien Pascal, Epouville, FR;

Jerome Talbotec, Combs la Ville, FR;

Michael Leborgne, Baudour, BE;

Ingrid Irene Catherine Lepot, Tinlot, BE;

Inventors:

Clement Marcel Maurice Dejeu, Fontenailles, FR;

Sebastien Pascal, Epouville, FR;

Jerome Talbotec, Combs la Ville, FR;

Michael Leborgne, Baudour, BE;

Ingrid Irene Catherine Lepot, Tinlot, BE;

Assignees:

SNECMA, Paris, FR;

CENAERO, Gosselies, BE;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Ninh H Nguyen

Int. Cl.
CPC ...
B64C 11/18 (2006.01); F01D 5/14 (2006.01); B64C 11/48 (2006.01); F02C 3/067 (2006.01); F02C 3/10 (2006.01); B64D 27/00 (2006.01);
U.S. Cl.
CPC ...
F01D 5/14 (2013.01); B64C 11/18 (2013.01); B64C 11/48 (2013.01); F02C 3/067 (2013.01); F02C 3/10 (2013.01); B64D 2027/005 (2013.01); F05D 2220/324 (2013.01); F05D 2220/325 (2013.01); F05D 2250/38 (2013.01); Y02T 50/66 (2013.01);
Abstract

A propulsion device including an unducted upstream propeller and a counter-rotating and coaxial downstream propeller. At least one blade of the upstream propeller is configured to generate a corotating secondary vortex for acting upstream of the downstream propeller to destabilize a blade tip vortex of the same at least one blade.

Find Patent Forward Citations

Dejeu, Clement Marcel Maurice. (2017). Propulsion device having unducted counter-rotating and coaxial rotors (U.S. Patent No. 9593582). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9593582

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…