Tiltwing multicopter with foldable and non-foldable propellers
US9975631B1 · kind B1 · utility
41Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2017 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Nov 1, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/50
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An aircraft includes a front tiltwing which in turn includes two non-foldable outer propellers and four foldable inner propellers. The four foldable inner propellers are rotating at least some of the time while the front tiltwing is held in a vertical takeoff and landing position. The four foldable inner propellers are stowed at least some of the time while the front tiltwing is held in a forward flight position. The aircraft also includes a back tiltwing which includes two non-foldable back propellers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.