Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Patrick Marro

Daniel Walser

Claude Blanc

Olivier Essinger

A wheel drive system for ground movement of an aircraft includes a motor system and a clutch system. The motor system, which is borne by an unsuspended part of a landing gear strut of the aircraft, includes an electric motor and a reduction gearing system. The clutch system, which connects an output shaft of the electric motor to a wheel of the aircraft via the reduction gearing system, includes a dog-clutch and a translational movement system. The dog-clutch includes a drive part, which is secured to the motor system, and a receiving part, which secures to a rim of the wheel. The translational movement system moves the drive part along an axis of an axle crossbeam of the landing gear strut into an engaged position, in which the drive part collaborates with the receiving part, and a disengaged position, in which the drive part is separated from the receiving part.

Wheel drive system, in particular for an aircraft

A wheel drive system for ground movement of an aircraft includes a motor system and a clutch system. The motor system, which is borne by an unsuspended part of a landing gear strut of the aircraft, includes an electric motor and a reduction gearing system. The clutch system, which connects an output shaft of the electric motor to a wheel of the aircraft via the reduction gearing system, includes a dog-clutch and a translational movement system. The dog-clutch includes a drive part, which is secured to the motor system, and a receiving part, which secures to a tire of the wheel. The translational movement system moves the drive part along an axis of an axle crossbeam of the landing gear strut into an engaged position, in which the drive part collaborates with the receiving part, and a disengaged position, in which the drive part is separated from the receiving part.

Motorized hub for an electrically powered motor vehicle comprising a wheel hub mounted to rotate about a hub axis, and an electric traction unit comprising an external stator connected to a hub carrier and an internal rotor () whose axis of rotation is distant from the hub axis. The motorized hub comprises reduction means acting between shaft () of rotor (), friction braking means, and a braking rotor secured to the hub. The reduction means comprise a drive pinion connected to the rotor () and a ring gear connected to the hub. A brake shaft passes through the hub carrier to connect the braking rotor to the hub. The reduction means comprise two reduction stages and the hub is mounted so that it can rotate via rolling-contact hub bearings positioned around a stub axle of the hub carrier, the brake shaft passing axially through a cavity of the stub axle.

Motorized hub comprising an electric traction unit

A motorized hub () for an electric traction automobile vehicle, said motorized hub comprising a hub () adapted to receive a wheel (), the hub being mounted to rotate relative to a hub-carrier () about a hub axis. The motorized hub comprises a traction electric machine having an external stator () fastened to the hub-carrier and an internal rotor () the rotation axis of which is spaced from the hub axis and parallel to said hub axis. The motorized hub comprises reduction means () operating between the rotor of the electric machine and the hub, and friction braking means, the brake rotor () being fastened to the hub and disposed axially on the vehicle interior side relative to the reduction means. The shaft of the rotor () of the electric machine being placed radially outside the brake rotor and extending axially from the reduction means toward the interior of the vehicle.

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Clermont-Ferrand, France

Patrick Marro