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 9284051 B1

Date of Patent:

Mar. 15, 2016

Filed:

Jul. 09, 2013

Rotorcraft rotor fitted with lead-lag dampers housed in sleeves connecting blades to a hub of the rotor

Applicant:

Airbus Helicopters, Marignane, FR;

Inventors:

Andre Amari, La Chapelle en Serval, FR;

Jacques Gaffiero, Paris, FR;

Assignee:

AIRBUS HELICOPTERS, Marignane, FR;

Attorney:

Brooks Kushman P.C.

Primary Examiner:

Ninh H Nguyen

Int. Cl.

CPC ...

B64C 27/51 (2006.01); B64C 27/35 (2006.01); B64C 27/635 (2006.01); B64C 27/00 (2006.01);

U.S. Cl.

CPC ...

B64C 27/51 (2013.01); B64C 27/001 (2013.01); B64C 27/35 (2013.01); B64C 27/635 (2013.01);

Abstract

A rotorcraft rotor fitted with a device for damping lead-lag oscillations of the blades () of the rotor. The blades () are hinge-mounted on a rotary hub () of the rotor via respective sleeves (). The damper device comprises a set of dampers (), each individually housed in a respective one of said sleeves () and deformable between two fastening points (), one with the sleeve and the other with an engagement member () for engaging the hub () via a linkage (). For each of the sleeve (), the damper () housed by a given sleeve () is in hinged engagement with the linkage () via a lever arm () hinged to the sleeve ().

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