Safran Electronics & Defense

Sagem Defense Securite

Pascal Omnes

Mickael Werquin

Christophe Bastide

Oleg Gomolko

Julien Hautecoeur

David Charrier

An actuator includes a screw mounted on a body to pivot, a nut connected to an element for moving, and that is engaged on the screw to be moved between an over-retracted first position and a deployed second position on either side of a retracted third position that is spaced apart from the over-retracted position by a distance corresponding to the screw rotating through a first angular sector and an anti-extension device comprising a friction disk having at least one smooth surface and an obstacle both for co-operating with at least one pawl, thereby defining both at least one second angular sector of free rotation for the friction disk and also a position for blocking the friction disk.

Actuator equipped with a no back system with inhibition zone

A lockable electromechanical actuator including: a screw extending along a longitudinal axis; a nut engaged on the screw and provided with means for connection to an element that is to be moved; and a passive locking device for locking the element that is to be moved in the retracted position; the passive locking device including a device for actuating a lock that can selectively adopt a first position in which the lock prevents relative turning between the screw and the nut, which would lead to the element that is to be moved being deployed, and a second position in which the nut is free to turn, the lock passing from one of its first and second positions to the other one of its first and second positions when the element that is to be moved is taken beyond its retracted position.

Actuator with passive locking

An actuating device for moving a mobile cap of a thrust reverser, which includes: an actuator having a first element, such as a screw, and a second element, such as a nut, collaborating with the first element in such a way that turning the first element causes the second element to move in a translational movement. A locking piece is rotationally mobile between a locked position in which the locking piece prevents the first element from turning, and an unlocked position in which the locking piece allows the first element to turn. An unlocking piece is rotationally mobile between an active position in which the unlocking piece urges the locking piece towards the unlocked position and a passive position in which the unlocking piece allows the locking piece to return to the locked position.

Actuating device for moving a movable cover of a thrust reverser

A lockable actuator includes: a body; a screw for pivoting relative to the body; a nut engaged on the screw so as to move along the screw between an over-retracted first position and a deployed second position on opposite sides of a retracted third position; a sleeve constrained to rotate with the screw and slidably mounted thereon in order to be moved by the nut; and an obstacle secured to the sleeve and a pawl capable of passing collectively between an active state and an inactive state, the pawl and the obstacle being arranged in such a manner that the pawl in its active state can co-operate with the obstacle only after the nut has been moved through a predetermined distance from its third position towards its second position.

Cylinder with integrated locking

The invention relates to an actuating device () for moving a mobile cap of a thrust reverser, comprising: &#x2014;an actuator comprising a first element (), such as a screw, and a second element (), such as a nut, collaborating with the first element in such a way that turning the first element causes the second element to move in a translational movement, &#x2014;a locking piece () rotationally mobile between a locked position in which the locking piece prevents the first element () from turning, and an unlocked position in which the locking piece () allows the first element () to turn, and &#x2014;an unlocking piece () rotationally mobile between an active position in which the unlocking piece () urges the locking piece () towards the unlocked position and a passive position in which the unlocking piece () allows the locking piece () to return to the locked position.

Growing community of inventors

Boulogne Billancourt, France

Pascal Omnes