Unmanned aerial vehicle comprising safety guard
US12097958B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2019 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Apr 5, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64U30/299
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An unmanned aerial vehicle according to the present invention may comprise: a rotor-blade for providing thrust according to generation of main stream; and a safety guard disposed to surround the rotor-blade. The safety guard may comprise: a guide member which is disposed coaxially with the rotor-blade while having a gap between the guard member and the end of the rotor-blade, so as to stabilize, when the rotor-blade rotates, a flow field suctioned by a negative pressure, and stably boost a discharge flow when the pressure is changed to a positive pressure; and a diffuser which is disposed coaxially with and radially spaced apart from the guide member, and generates a secondary flow toward the main stream to increase a flow rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.