Rotor blade coupling device of a rotor head for a rotorcraft
US10759529B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2016 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Jan 8, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2027/003
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotor blade coupling device for coupling to a rotor mast having a rotor head centerpiece. The coupling device has at least three rotor blade mountings mounted on the rotor head centerpiece and accommodating at least three rotor blades lying in a rotor plane, and at least one connecting element between adjacent rotor blade mountings. The rotor blade mountings can carry out pivoting motions about a pivoting axis extending vertical to the rotor plane. The at least one connecting element is a damping device, and the rotor blade coupling device has a plate-shaped transfer element, which respectively crosses a rotor blade mounting and is coupled to at least one damping device. The rotor blade coupling device has a simplified design and ensures improved damping of lead-lag motions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.