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Title:
PROPELLER, POWER ASSEMBLY, AND AIRCRAFT
Document Type and Number:
WIPO Patent Application WO/2019/000560
Kind Code:
A1
Abstract:
A propeller, a power assembly, and an aircraft. The propeller comprises a propeller seat (6) and propeller blades (1) connected to the propeller seat; an attack angle of the propeller blade (1) at a position being 45.8% of the radius of the propeller disk from the center of a propeller disk formed by the propeller (6) is 22.59°±2.5°, and a chord length thereof is 26.98mm±5mm; the attack angle of the propeller blade (1) at a position being 62.5% of the radius of the propeller disk from the center of the propeller disk formed by the propeller (6) is 19.57°±2.5°, and the chord length thereof is 21.91mm±5mm; the attack angle of the propeller blade (1) at a position being 79.2% of the radius of the propeller disk from the center of the propeller disk formed by the propeller (6) is 16.56°±2.5°, and the chord length thereof is 17.64mm±5mm. According to the propeller, the power assembly, and the aircraft, by optimizing the structure of the propeller, the rotation resistance of the propeller can be reduced, so that the flight resistance of the aircraft is further reduced, the flight speed and the flight efficiency of the aircraft are improved, and the flight performance of the aircraft is improved.

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Inventors:
LIU FENG (CN)
CHEN PENG (CN)
DENG TAO (CN)
Application Number:
PCT/CN2017/095865
Publication Date:
January 03, 2019
Filing Date:
August 03, 2017
Export Citation:
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Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
B64C11/16; B64C11/18
Foreign References:
CN205345320U2016-06-29
CN205469778U2016-08-17
CN205345321U2016-06-29
CN205589457U2016-09-21
CN205554565U2016-09-07
US20150152733A12015-06-04
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF:
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