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1. (WO2018045575) PROPELLER ASSEMBLY, POWER SYSTEM, AND AERIAL VEHICLE

Pub. No.:    WO/2018/045575    International Application No.:    PCT/CN2016/098612
Publication Date: Fri Mar 16 00:59:59 CET 2018 International Filing Date: Sat Sep 10 01:59:59 CEST 2016
IPC: B64C 27/10
B64C 27/467
Applicants: SZ DJI TECHNOLOGY CO.,LTD
深圳市大疆创新科技有限公司
Inventors: WANG, Jiadi
王佳迪
ZHANG, Yongsheng
张永生
LIANG, Guibin
梁贵彬
CHEN, Xingyuan
陈星元
Title: PROPELLER ASSEMBLY, POWER SYSTEM, AND AERIAL VEHICLE
Abstract:
A propeller assembly, a power system, and an aerial vehicle. The propeller assembly (13) comprises first propellers (131) and second propellers (132) that are disposed at intervals. Each first propeller (131) comprises a first propeller hub (1311) and at least one first blade (1312) connected to the first propeller hub (1311). Each second propeller (132) comprises a second propeller hub (1321) and at least one second blade (1312) connected to the second propeller hub (1321). During the rotation of the propeller assembly (13), acceleration air flows generated duration the rotation of the first propellers (131) point to the second propellers (132) from the first propellers (131) and act on the second propellers (132), so that the radial attack angle line types of the second blades (1322) are different from those of the first blades (1312). In this way, the radial attack angle line types of the blades on different layers are set to be different from each other, and accordingly the impacts of difference between air flow speeds among the blades on different layers to the working effects of the propellers can be effectively avoided.