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:
Mar. 08, 2016
Filed:
Jun. 21, 2012
Applicant:
Esteban Quiroz-hernandez, Toulouse, FR;
Inventor:
Esteban Quiroz-Hernandez, Toulouse, FR;
Assignee:
Airbus Operations (SAS), Toulouse, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 25/06 (2006.01); B64C 11/00 (2006.01); F01D 5/02 (2006.01); F16F 15/32 (2006.01); F02K 3/02 (2006.01); B64D 27/00 (2006.01);
U.S. Cl.
CPC ...
F01D 25/06 (2013.01); B64C 11/008 (2013.01); F01D 5/027 (2013.01); F02K 3/025 (2013.01); F16F 15/32 (2013.01); B64D 2027/005 (2013.01); F05D 2220/324 (2013.01); F05D 2220/325 (2013.01); F05D 2250/44 (2013.01); Y02T 50/66 (2013.01); Y02T 50/671 (2013.01); Y02T 50/673 (2013.01); Y10T 29/49332 (2015.01);
Abstract
In order to eliminate or at least to reduce a possible unbalance of the propulsive system, counterweights are brought in locations that are provided on the hub envelope, near the ends of the latter and away from the planes of the propellers. More particularly, the counterweights are provided as discrete elements located in two planes spaced from the propellers and orthogonal to an outer surface of the hub envelopes, or are provided as a non-uniform mass ring.