Tail rotor head of a rotary wing aircraft and blade holder
US12391376B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2021 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Jul 15, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2027/8254
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tail rotor head of a rotary wing aircraft is disclosed, the tail rotor head having at least a pitch control unit and a tail rotor hub, wherein a multiplicity of tail rotor blade holders are arranged to be connectable while reaching through openings in the tail rotor hub and the pitch control unit at the tail rotor head. The tail rotor blade is detachably connected at a first side of the tail rotor blade holder and a tension torsion strap is detachably mounted at a second side of the tail rotor blade holder. The tension torsion strap runs from the tail rotor head at least partly through the tail rotor blade holder radially outward in a direction of the tail rotor blade, thereby allowing for easy replacement of single rotor blades and a more simplified maintenance of the tail rotor head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.