Mechanism for attenuating torque pulsations between an engine and a rotorcraft rotor driven by the engine
US8579589B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2010 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Aug 1, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention provides a mechanism for attenuating torque pulsations between an engine (2) and a rotor (1) of a rotorcraft. Torsion means (5) are interposed between the driving and driven shafts and comprise a torsion shaft (6) axially engaged with the drive shaft (3) and the driven shaft (4) an inlet shaft (9) and an outlet shaft (10) respectively engaged with the drive and driven shafts (3, 4) a lever system (7) that extends radially relative to the torsion shaft (6) and that has the inlet and outlet shafts (9, 10) hinged thereto via points (11, 12) that are spaced apart; and a mass (8) carried by said lever arm (7) at its free end (13) radially farthest away from the axis along which the torsion shaft (6) extends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.