A multi-rotor system 2 comprises a plurality of rotors 4 on more than one plane. The rotors are positioned within frames 14 that include circumferential ducting 10. Where rotors overlap in plan view there are arranged partitions to ensure that airflow through a rotor in an upstream plane does not pass through a rotor in a downstream plane. The multi-rotor system is primarily intended for use in providing lift for a UAV. It also has applications as a cooling fan such as for engine radiators. The rotor arrangement is such as to maximise air flow and minimise plan form area.
Multirotor
2016-03-09
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL |