Title:
MULTI-ROTOR TONAL NOISE CONTROL FOR UAV
Document Type and Number:
WIPO Patent Application WO/2019/125832
Kind Code:
A8
Abstract:
A technique of controlling tonal noises produced by an unmanned aerial vehicle (UAV) includes generating thrust with a plurality of rotor units mounted to the UAV to propel the UAV into flight. Each of the rotor units includes a bladed rotor. A rotation rate or a phase delay of at least one of the rotor units is adjusted relative to another of the rotor units. The adjustment causes a spread in the tonal noises generated by the rotor units.
Inventors:
PANTALONE GIULIA (US)
WOODWORTH ADAM (US)
TELLER ERIC (US)
KIM EALGOO (US)
HUFFMAN JACOB (US)
KUBIE MARTIN (US)
WOODWORTH ADAM (US)
TELLER ERIC (US)
KIM EALGOO (US)
HUFFMAN JACOB (US)
KUBIE MARTIN (US)
Application Number:
PCT/US2018/065029
Publication Date:
July 23, 2020
Filing Date:
December 11, 2018
Export Citation:
Assignee:
WING AVIATION LLC (US)
International Classes:
H02P7/00; B64D31/06; G05D19/02
Attorney, Agent or Firm:
CLAASSEN, Cory G. et al. (US)
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