Patent ID: 11905024
Assignee: SAFRAN
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. An electric propulsion architecture for a multi-rotor vertical take-off and landing aircraft, comprising
at least four electric generators and
at least four pairs of rotors,
each rotor comprising a first electric motor and a second electric motor, the first electric motor being configured to operate in an active mode and the second electric motor being configured to be in a standby mode and being adapted to operate in an active mode in the event of a breakdown of an electric motor of a rotor, of a rotor or of an electric generator,
for each rotor, a propeller coupled to the first and second electric motors so that during operation the first electric motor drives the propeller,
wherein for each pair of rotors, a first of the at least four electric generators supplies the first electric motors of the rotors of a pair of rotors, and a second of the at least four electric generators supplies the second electric motors of the rotors of a pair of rotors,
and wherein the rotors of the pairs of rotors form counter-rotors; and for each counter-rotor, the first and second electric motors of the rotors of each counter-rotor are each supplied by one of the four electric generators so that the four electric generators supply the first and second electric motors of the rotors of each counter-rotor.