Rotor assemblies for vehicle propulsion
US11767006B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2022 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Feb 22, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C11/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotor assembly for generating thrust for a vehicle. The rotor assembly includes a rotor hub and a plurality of rotor blade assemblies coupled to the rotor hub. Each rotor blade assembly includes a metallic bearing race, a composite rotor blade and a metallic coupling assembly. The composite rotor blade has a root section with a radially outwardly tapered outer surface. The metallic coupling assembly has a radially inwardly tapered inner surface that receives the radially outwardly tapered outer surface of the root section of the rotor blade therein to provide a centrifugal force seat for the rotor blade. The coupling assembly includes at least two circumferentially distributed coupling members. The coupling assembly is configured to couple the rotor blade to the bearing race and to provide a centrifugal force load path therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.