Title:
DUCT WITH IMPROVED CROSSWIND STABILITY AND TAIL-SITTER TYPE UNMANNED AERIAL VEHICLE USING SAME
Document Type and Number:
WIPO Patent Application WO/2024/005248
Kind Code:
A1
Abstract:
The present invention relates to a duct with improved crosswind stability, in which when crosswinds occur, deterioration in operating characteristics by the separation of airflow is minimized and, more specifically, to a duct mounted to surround a propeller in order to improve the efficiency of the propeller that generates thrust for an unmanned aerial vehicle, the duct comprising: a duct body which is formed to have a ring shape having a larger upper inner diameter than a lower inner diameter and in which a propeller is rotatably provided; and a separation control member of which a portion protrudes to the outside of the duct body by rotation, wherein the separation control member includes an arc-shaped curved portion, a pair of extension pieces extending adjacent to each other at the lower portion of the curved portion, and a rotation member which is provided inside the duct body and is rotatably coupled to at least one of the pair of extension pieces to rotate the curved portion so that the curved portion protrudes to the outside of the duct body or becomes integral with the upper shape of the duct body.
Inventors:
KIM GEON HONG (KR)
Application Number:
PCT/KR2022/009654
Publication Date:
January 04, 2024
Filing Date:
July 05, 2022
Export Citation:
Assignee:
NINANO COMPANY INC (KR)
International Classes:
B64C11/00; B64C29/02; B64C39/02
Foreign References:
| JP2011126517A | 2011-06-30 | |||
| US20170010622A1 | 2017-01-12 | |||
| US20110095135A1 | 2011-04-28 | |||
| JP2020015505A | 2020-01-30 | |||
| US20160040595A1 | 2016-02-11 |
Attorney, Agent or Firm:
WELL PATENT LAW FIRM (KR)
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