Other

Chretien, Pascal

Chantriaux, Eric

Pascal Chretien

Eric Chantriaux

A fault tolerant optical apparatus resilient to ballistic impact damages, capable of enabling distributed processing and networking and using the spectrophotometric transmission properties of polymer film.

Fault tolerant optical apparatus

A fault tolerant, optically or electrically managed, EMP resilient electromagnetic distributed direct drive powertrain applied to provide lift and/or propulsion and/or attitude control to an aircraft. The electromagnetic distributed direct drive being network based, capable of autonomous operations and decisions such as pilot input interpreting mode, load distribution, fault management, self-healing operations, electrical and mechanical health monitoring, as well as electrical and mechanical fault prediction.

Electromagnetic distributed direct drive for aircraft

Rotary-wing aircraft or fixed-wing aircraft consisting of one or a plurality of rotors and/or one or a plurality of airscrews being caused to rotate by means of at least one shaft, the said aircraft comprising a distributed electric motor unit configured to ensure the propulsion and/or the lifting of the said aircraft by causing the said shaft to rotate, the motor unit being a distributed electric motor unit connected directly to the rotating shaft, no mechanism for the transmission of movement being interposed between the said unit and the said shaft, the distributed electric motor unit being composed of a plurality of stacked electric motor elements, each said electric motor element being connected directly to the rotating shaft and consisting of at least one fixed stator and at least one moving rotor capable of connection to the said rotating shaft in order to transmit to it a mechanical power of the following kind where: &#xb7;Pr=the nominal mechanical power necessary for the propulsion and/or for the lifting of the said aircraft, &#xb7;Pim=the maximum mechanical power capable of being delivered by the electric motor element on level i, to the rotating shaft, for instance Pim&#x3c;Pr, &#xb7;Ki=the power derating of the electric motor element on level i, for instance 0&#x2266;ki&#x2266;1, Ki being a variable that is adjustable as a function of the undamaged number of electric motor elements and/or as a function of the nominal mechanical power necessary for the propulsion and/or for the lifting of the said aircraft at a moment in time t, n=the number of electric motor elements comprising the distributed electric, motor unit, for instance n&#x2267;2,&#x2014;the axes of rotation of the moving rotors and of the rotating shaft being coaxial.

Electromagnetic power transmission for a rotary-wing aircraft or a fixed-wing aircraft

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.

Growing community of inventors

Oxley, Australia

Pascal Chretien