Astrium Sas

Airbus Defence and Space Sas

Arianegroup Sas

Thomas Kister

Luc Preaud

Jean-Yves Cousin

Sylvain Claudel

Joël Astier

Sébastien Gigleux

Denis Wintersdorff

Pascal Lesaulnier

Mathieu Davion

According to the invention, the component to be ruptured comprises an alternation of oblong pre-cut zones and of non-pre-cut zones and the pyrotechnique rupture device () with detonating cord () comprises an alternation of sections () for rupturing said non-pre-cut zones and of inflatable sections () for parting the broken parts of said component.

Pyrotechnique rupture method and components for implementing it

According to the invention, this piece comprises: a base section piece () provided with a projecting longitudinal heel () delimiting a longitudinal groove (); a longitudinal pyrotechnic cord laid in said groove; and a plurality of consecutive section piece portions () fixed one after the other to said base section piece () by first fixing means (). Between the consecutive section piece portions () are second fixing means (), distributed along said base section piece () and independent of said first fixing means (), enabling said pyrotechnic cord to be fixed and positioned relative to said base section piece ().

Reversible detonating pyrotechnic rupture piece

An expansion tube of a detonating pyrotechnic rupture piece is open next to pre-established rupture zones and, inside said open expansion tube there is disposed a sealed bladder which contains a pyrotechnic fuse.

Detonating pyrotechnic rupture piece

According to the invention, the device () comprises a bolt () including a locking member () which is mounted such that it can slide with respect to a first component () and can adopt a locked position in which the locking member () retains the second component () and an unlocked position in which the locking member () releases the second component (), the transition from the locked position to the unlocked position taking place under the action of pyrotechnic means (). In addition, a branch () that is at least partially deformable under the action of the pyrotechnic means () is arranged with respect to the bolt () in such a way that the transition from the locked position to the unlocked position takes place by means of the deformation of said branch ().

Attachment device with pyrotechnic bolt

Temporary connection and pyrotechnic separation device with a longitudinal axis (X) comprising a pyrotechnic expansion tube () mounted in a space () formed in a connection zone between a first () and second assembly () to be separated, the second assembly () being formed of a stack of plies () bonded together, the two assemblies () being connected to each other by two metal parts (), said metal parts being fixed onto the first assembly and bonded onto the outer plies () of the second assembly (), the bonding area between said outer ply () and the adjacent inner ply () is less than the bonding area between two inner plies () forming a fuse ply, such that, when the pyrotechnic expansion tube () is used, the outer ply () separates from the adjacent inner ply.

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Vaux sur Seine, France

Thomas Kister