Title:
PROPELLER, POWER ASSEMBLY, AND AIRCRAFT
Document Type and Number:
WIPO Patent Application WO/2017/128744
Kind Code:
A1
Abstract:
A propeller, power assembly, and aircraft. The propeller comprises a blade fastener (1) and a blade (2) connected to the blade fastener (1). At a location having a distance of 55% of a radius of a propeller disc defined by the propeller from the center of the propeller disc, the blade (2) has a chord length of 16.7 mm ± 5 mm and an angle of attack of 14° ± 2.5°. At a location having a distance of 70% of the radius of the propeller disc from the center thereof, the blade (2) has a chord length of 14.4 mm ± 5 mm and an angle of attack of 11.7° ± 2.5°. At a location having a distance of 85% of the radius of the propeller disc from the center thereof, the blade (2) has a chord length of 12.2 mm ± 5 mm and an angle of attack of 9.3° ± 2.5°. The propeller, power assembly, and aircraft can effectively reduce the resistance on the propeller during rotation, thus improving the efficiency of mechanical power transmission.
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Inventors:
LIU FENG (CN)
DENG TAO (CN)
JIANG BIN (CN)
WANG SHU (CN)
DENG TAO (CN)
JIANG BIN (CN)
WANG SHU (CN)
Application Number:
PCT/CN2016/099704
Publication Date:
August 03, 2017
Filing Date:
September 22, 2016
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
B64C11/18
Foreign References:
| CN205524939U | 2016-08-31 | |||
| CN102963522A | 2013-03-13 | |||
| CN202765286U | 2013-03-06 | |||
| CN104139849A | 2014-11-12 | |||
| US20070110582A1 | 2007-05-17 | |||
| US20070158495A1 | 2007-07-12 | |||
| JP2013184645A | 2013-09-19 | |||
| JP2001233295A | 2001-08-28 |
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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