Safran Electronics & Defense

Sagem Defense Securite

Bertrand Sevagen

Etienne Merlet

Nicolas Ravoux

Marc Lebrun

Jérôme Mehez

Zakaraya Imounssi

David Senegas

Maxime Jestin

Jerome Mehez

A mechanical transmission device having a planet carrier and at least two planets mounted on the planet carrier by means of respective rotation shafts. The device includes a stop for stopping movement of the various rotation shafts in axial translation.

Mechanical transmission device

A gear device, wherein it comprises at least: a shaft provided with a sun gear; at least two coaxial rings with internal teeth, namely at least one first ring and at least one second ring having at least one first annular segment and at least one second annular segment; and planets engaging with the sun gear, the first ring, and the segments of the second ring, which segments mesh with a particular toothed relationship.

Device with two interlocked gear trains

The invention relates to an actuator comprising a stationary structure and an actuating element that is movable relative to the stationary structure, a device for locking the actuating element in position which is mounted on the stationary structure and has a state for locking and a state for releasing the actuating element. The locking device comprises, successively, a stress limiter and at least one locking element so arranged as to be butting against one surface of the actuating element, in order to oppose a motion of the actuating element in a predetermined direction. The actuator comprises a member for controlling the locking device in the releasing state thereof and a member for resiliently returning the locking device to the locking state thereof.

Actuator having an associated locking device and torque limiter

An electromechanical actuator for a movable flight control surface of an aircraft, the actuator comprising an electric motor having an outlet shaft with first and second directions of rotation, a movement transmission arranged to connect the outlet shaft of the motor to the movable flight control surface, and a control unit for controlling the motor. The transmission incorporates a pawl device arranged to oppose the transmission of movement in the first direction of rotation, and the control unit is connected to a pawl declutching member for declutching the pawl and enabling movement to be transmitted in the first direction of rotation.

Growing community of inventors

Boulogne Billancourt, France

Bertrand Sevagen