BLADE, AIRSCREW, POWER PACKAGE AND UNMANNED AERIAL VEHICLE

WIPO Patent Application WO/2018/058769

A1

Provided is a blade (100) used for an airscrew (300). At a position on the blade (100) where the distance from a centre of gyration of the airscrew (300) is 52.38% of the radius of gyration of the airscrew (300), the attack angle of the blade (100) is 13.59±2.5 degrees; at a position on the blade (100) where the distance from the centre of gyration of the airscrew (300) is 66.67% of the radius of gyration of the airscrew (300), the attack angle of the blade (100) is 11.09±2.5 degrees; and at a position on the blade (100) where the distance from the centre of gyration of the airscrew (300) is 80.95% of the radius of gyration of the airscrew (300), the attack angle of the blade (100) is 9.76±2.5 degrees. Also provided are the airscrew (300) using the blade (100), and a power package (200) and an unmanned aerial vehicle using the airscrew (300). Through the design of attack angles of different portions of the blade, the air resistance is reduced, the efficiency is improved, and the propelling force is relatively large.

WO/2008/147463	ON-BLADE ACTUATOR FOR HELICOPTER ROTOR BLADE CONTROL FLAPS
JP4951616	Dual channel deicing system for rotorcraft
WO/2023/222549	DE-ICING SYSTEM FOR A MECHANICAL PART, COMPRISING AT LEAST ONE PIEZOELECTRIC ACTUATOR

LIU FENG (CN)
DENG TAO (CN)
JIANG BIN (CN)

PCT/CN2016/106550

April 05, 2018

November 21, 2016

Click for automatic bibliography generation  

SZ DJI TECHNOLOGY CO LTD (CN)

B64C27/46

CN105253295A	2016-01-20
CN205396538U	2016-07-27
CN205345320U	2016-06-29
CN205524939U	2016-08-31
CN205554565U	2016-09-07
US20120057987A1	2012-03-08

SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

View/Download PDF      PDF Help

Previous Patent: BLADE, AIRSCREW, POWER PACKAGE AND UNMANNED AERIAL VEHICLE

Next Patent: COMPACTING SHEARER CONVEYING MACHINE, AND COMPACTION METHOD