Title:
PROPELLER, POWER ASSEMBLY, AND AIRCRAFT
Document Type and Number:
WIPO Patent Application WO/2019/029026
Kind Code:
A1
Abstract:
A propeller, comprising a propeller hub (10) and propeller blades (20). The propeller blades (20) are connected to the propeller hub (10); at a position whereof the distance to the center of the propeller hub (10) is 40% of the radius of the propeller (100), the propeller blades (20) have angles of attack of 20.37°±2.5° and have chord lengths of 16.95mm±5mm; at a position whereof the distance to the center of the propeller hub (10) is 60% of the radius of the propeller (100), the propeller blades (20) have angles of attack of 14.79°±2.5° and have chord lengths of 13.1mm±5mm; at a position whereof the distance to the center of the propeller hub (10) is 80% of the radius of the propeller (100), the propeller blades (20) have angles of attack of 9.44°±2.5° and have chord lengths of 9.3mm±5mm. Also comprised are a power assembly and an aircraft. The structure of the propeller is optimized, and the flight performance of the aircraft is improved.
Inventors:
LIU YIHAN (CN)
CHEN PENG (CN)
WANG SHU (CN)
CHEN PENG (CN)
WANG SHU (CN)
Application Number:
PCT/CN2017/108494
Publication Date:
February 14, 2019
Filing Date:
October 31, 2017
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
B64C11/20; B64C27/08; B64C27/14; B64C27/24
Foreign References:
| CN205469778U | 2016-08-17 | |||
| CN206297727U | 2017-07-04 | |||
| CN206344996U | 2017-07-21 | |||
| CN205801500U | 2016-12-14 | |||
| CN206202665U | 2017-05-31 | |||
| JP2013184645A | 2013-09-19 | |||
| US20070110582A1 | 2007-05-17 |
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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