Aircraft comprising a distributed electric power unit with free wheels

摘要

An aircraft comprising rotors and/or propellers rotated by a shaft and including a power unit. The distributed electric power unit is formed by stacked electric power elements, each conferring, on the shaft, a fraction of the total power necessary; the distributed electric power unit is in direct engagement with the shaft, with no movement transmission mechanism inserted between the unit and the shaft; each electric power element is directly connected to the rotation shaft and comprises a fixed stator, a moving rotor and a mechanical or electromagnetic free wheel in direct engagement with the shaft, said moving rotor co-operating with the free wheel to be coupled to the rotation shaft during normal operation of the electric power unit and to be disconnected from the shaft in the event of the failure of the electric element.

主权项

1. A rotary- or fixed-wing aircraft comprising one or a plurality of rotors and/or one or a plurality of airscrews, the one or more rotors and/or the one or more airscrews being caused to rotate at a variable or constant speed by a shaft, said aircraft comprising an electromagnetic transmission unit configured to ensure the propulsion and/or the lifting of the said aircraft by causing said shaft to rotate
characterized by the fact that:
the transmission unit is a distributed electromagnetic transmission unit composed of a plurality of stacked electric motor elements, each said element being able to produce, on the rotating shaft, a fraction of the total power required for the propulsion and/or the lift of said aircraft,the electromagnetic transmission unit is directly connected to the rotating shaft, without any movement transmission mechanism between said unit and said shaft,each electric motor element is connected directly to the rotating shaft and comprises a fixed stator, a moving rotor and mechanical or electromagnetic freewheeling unit directly connected to said rotating shaft, said moving rotor cooperating with said freewheeling unit in such way as to be coupled to said rotating shaft during normal operation of the electric motor element and to decouple from said shaft when said electric motor element fails,the axes of rotation of the moving rotors, freewheeling units and rotating shaft are coaxial.