Safran Electronics & Defense

Sagem Defense Securite

Aircelle Limited

Christophe Bastide

Mickael Werquin

Pascal Omnes

Julien Hautecoeur

Rinaldo Fadini

Pierre Moradell-Casellas

Pascal Coppee

Franck Delnaud

Nicolas Planquet

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

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 comprising: &#x2014;a first element (), &#x2014;a second element () able to move translationally with respect to the first element (), and &#x2014;a locking device () comprising a catch () able to move between a deployed position and a retracted position, the catch (-) being positioned with respect to the first element () in such a way that when the catch (-) is in a deployed position, the catch (-) allows the second element () to move with respect to the first element () in a first range of movement (A) and prevents the second element () from moving with respect to the first element () in a second range of movement (B), and when the catch (-) is in the retracted position, the catch (-) allows the second element to move with respect to the first element () in the second range of movement (B). This device is particularly suited to allowing actuation of a thrust reverser system and of a system that regulates air flow through an aircraft propulsion unit.

Actuating device including a primary locking device

The invention concerns an actuating device () for moving a mobile cover of a thrust reverser, comprising: an actuator () comprising a first element (), such as a screw, and a second element (), such as a nut, mounted mobile device relative to the first element () such that the rotation of the first element () results in a translational movement of the second element () relative to the first element (), and a locking device () comprising a rotating part () linked in rotation with the first element (), and a locking part () that is mobile relative to the rotating part () between a locked position in which the locking part () is engaged with the rotating part () to prevent the first element () from rotating and an unlocked position in which the locking part () is disengaged from the rotating part to allow the rotation of the first element (), and an electromagnet () for moving the locking part () to the unlocked position.

Growing community of inventors

Boulogne Billancourt, France

Christophe Bastide