Snecma

Stephan Yves Aubin

Stephane Rousselin

Didier Rene Andre Escure

Yvon Cloarec

Thierry Jean-Jacques Obrecht

Thomas Julien Roland Earith

Erick Jacques Boston

A device for axial retention of mobile vanes mounted on a rotor disc includes two open rings, superimposed. At least one of the rings includes a rotating stop mechanism configured to cooperate with at least one hook of the disc. The two open rings are mounted in a discontinuous groove formed in the hooks, at the end of teeth situated on the periphery of the rotor disc, such that the rotating stop mechanism of the first ring is placed in the opening of the second ring. The significance of contact surfaces between the two rings allows a damping of vibrations during operation.

Device for axial retention of mobile vanes mounted on a rotor disc

Devices for intaking gases from the boundary layer through ducts hollowed out in blades. These devices are suitable for variable setting blades, installed on the stator using pivots. The seal is maintained despite the variation in the relative position between the moving pivots through which ducts pass, and the fixed intake header pipe.

Air bleed device on a machine stator pivoting blade

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Brussels, Belgium

Stephan Yves Aubin