Propulsion system
US12097948B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2024 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Mar 6, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D7/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A propulsion system, including a rotor arrangement rotatably mounted with respect to a nacelle about a rotor axis. The rotor arrangement includes rotor blades, each being pivotably mounted to a hub element about a respective blade pivot axis, the rotor blades being deployable between an undeployed configuration and a deployed configuration. The nacelle includes a nacelle body having a nacelle outer surface including facet elements and transition elements, each facet element extending aft from the hub element, each adjacent pair of facet elements being circumferentially spaced from one another by a corresponding transition element, each facet element having a first curvature with respect to the rotor axis, each transition element having a second curvature with respect to the rotor axis. The first curvature is different from the second curvature. In the undeployed configuration, each rotor blade is in overlying and fully external relationship with respect to a corresponding facet element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.