Dual rotor propulsion systems for tiltrotor aircraft
US10752352B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2017 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Dec 9, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C27/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A dual rotor propulsion system for a tiltrotor aircraft having VTOL and forward flight modes. The dual rotor propulsion system includes an engine operable to provide an input torque to a transmission that, responsive thereto, generates an output torque. A first output shaft is coupled to the transmission and is operable to receive a first portion of the output torque. A first rotor assembly is coupled to and rotatable with the first output shaft. A second output shaft is coupled to the transmission and is operable to receive a second portion of the output torque. A second rotor assembly is coupled to and rotatable with the second output shaft. In operation, the first and second rotor assemblies rotate coaxially, the first rotor assembly is a different diameter than the second rotor assembly and the first rotor assembly is stoppable and foldable in the forward flight mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.