Propulsion unit with foldable propeller blades and method for folding the blades
US12428130B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2021 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Jun 14, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C29/0008
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A propulsion unit with a propeller is provided, having a nacelle and a propeller rotatably mounted in the nacelle by a hub. The propeller includes blades mounted in a blade cuff pivotable about a pitch axis relative to the hub, each blade being pivotable relative to the cuff about a folding axis. The propulsion unit can further include a folding device that comprises an actuator for folding the blades. The folding device can include a control member rotationally affixed to the blade cuff and driven by the actuator, and a connecting rod pivotably mounted, on the one hand, on a root of the associated blade and, on the other hand, on the movable control member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.