Title:
Multi- Copter
Document Type and Number:
Japanese Patent JP6158459
Kind Code:
B2
Abstract:
To provide a multicopter that enables it to prevent generation of a vortex ring state of a rotor and control lift and thrust efficiently and elaborately. This is solved by a multicopter having a plurality of rotors installed radially to a frame, wherein at least one of the plurality of rotors is provided with a cylindrical duct surrounding and enclosing the rotor; and the duct is formed in a shape making an air flow from an air intake side to an air outlet side of the rotor imbalanced in a circumferential direction of the duct.
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Inventors:
Kazuo Ichihara
Kiyoichi Sugaki
Kiyoichi Sugaki
Application Number:
JP2017502451A
Publication Date:
July 05, 2017
Filing Date:
February 25, 2016
Export Citation:
Assignee:
Pro Drone Co., Ltd.
International Classes:
B64C27/20; B64C27/08; B64C39/02
Domestic Patent References:
| JP2006528583A | ||||
| JP2011126517A | ||||
| JP2006021733A | ||||
| JP2004503430A |
Foreign References:
| WO2014119155A1 | ||||
| WO2012102698A1 | ||||
| US3488018 | ||||
| US20060231675 | ||||
| CN102358420A | ||||
| WO2014062097A1 | ||||
| US3061242 |
Attorney, Agent or Firm:
Ueno patent office
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