Rotorcraft rotor fitted with lead-lag dampers housed in sleeves connecting blades to a hub of the rotor
US9284051B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2013 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Oct 16, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/635
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotorcraft rotor fitted with a device for damping lead-lag oscillations of the blades (2) of the rotor. The blades (2) are hinge-mounted on a rotary hub (1) of the rotor via respective sleeves (3). The damper device comprises a set of dampers (6), each individually housed in a respective one of said sleeves (3) and deformable between two fastening points (8, 9), one with the sleeve and the other with an engagement member (7) for engaging the hub (1) via a linkage (10). For each of the sleeve (3), the damper (6) housed by a given sleeve (3) is in hinged engagement with the linkage (10) via a lever arm (11) hinged to the sleeve (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.