Proprotor systems for tiltrotor aircraft
US10569870B2 · kind B2 · utility
0Cited by
16References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2016 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Jun 15, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2027/4736
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A proprotor system for tiltrotor aircraft having a helicopter mode and an airplane mode. The proprotor system includes a hub and a plurality of proprotor blades coupled to the hub such that each proprotor blade is operable to independently flap relative to the hub and independently change pitch. In the airplane mode, the proprotor blades have a first in-plane frequency greater than 2.0/rev.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.