Title:
PROPELLER, POWER ASSEMBLY AND AIRCRAFT
Document Type and Number:
WIPO Patent Application WO/2018/098873
Kind Code:
A1
Abstract:
Disclosed are a propeller (100), a power assembly (110) and an aircraft (200). The propeller (100) comprises propeller blades (10), the propeller blades (10) rotating to form a propeller disc. At a position away from the centre of the propeller disc by 43.86% of the radius of the propeller disc, the attack angle of the propeller blades (10) is (20.27 ± 2.5) degrees; at a position away from the centre of the propeller disc by 61.40% of the radius of the propeller disc, the attack angle of the propeller blades (10) is (14.82 ± 2.5) degrees; and at a position away from the centre of the propeller disc by 78.95% of the radius of the propeller disc, the attack angle of the propeller blades (10) is (11.75 ± 2.5) degrees. By optimally designing the attack angles of different portions of the propeller blades (10), the above-mentioned propeller (100), power assembly (110) and aircraft (200) reduce the air resistance, improve the efficiency, increase the endurance time and the maximum flight distance and improve the dynamic response speed of the propeller blades, thereby improving the flight performance of the aircraft.
Inventors:
LIU FENG (CN)
CHEN PENG (CN)
DENG TAO (CN)
CHEN PENG (CN)
DENG TAO (CN)
Application Number:
PCT/CN2016/111919
Publication Date:
June 07, 2018
Filing Date:
December 24, 2016
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
B64C27/32; B64C27/467
Foreign References:
| CN205554565U | 2016-09-07 | |||
| CN205366054U | 2016-07-06 | |||
| CN203996873U | 2014-12-10 | |||
| CN205613033U | 2016-10-05 | |||
| CN205469778U | 2016-08-17 |
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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