Mount systems for pylon assemblies with coaxial rotors
US11203418B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2019 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | May 7, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2027/8236
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A mount system for tiltably supporting a pylon assembly of a rotorcraft. First, second, third and fourth pylon links are each coupled between the pylon assembly and the airframe of the rotorcraft. The first pylon link has a first axis, the second pylon link has a second axis, the third pylon link has a third axis and the fourth pylon link has a fourth axis. Each of the axes intersects at a focal point located proximate a coaxial rotor system having counter-rotating upper and lower rotor assemblies such that the focal point provides a virtual pivot point about which the pylon assembly tilts to generate a control moment about a center of gravity of the rotorcraft that counteracts lateral and fore/aft moments generated by the upper and lower rotor assemblies during rotorcraft maneuvers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.