Safran Helicopter Engines

Stephane Vergez

Mathieu Cladiere

Olivier Pierre Descubes

Cedric Roger Zordan

Armand Bueno

An assembly for a turbine engine. The assembly includes a mount, a nut clamping around the male portion of the mount, a member projecting from the mount and a device for limiting loosening of the nut. The loosening limitation device includes a member for locking the nut against rotation relative to the mount. The rotation locking member includes an inner surface designed to limit rotation of the nut with shape engagement with an outer surface of the nut. The rotation locking member includes a first anti-rotation abutment designed to rotatably abut against the projecting member. The loosening limitation device includes a translation locking member designed to limit translation of the rotation locking member relative to the nut.

Device for limiting the loosening of a nut in a turbine engine

The invention relates to a mechanical fuse intended to be rigidly mounted between a drive unit (), and a receiver unit (), each rotating about the same axis () of rotation, said fuse comprising a body () extending in a longitudinal direction parallel to said axis () of rotation, once the fuse is mounted between said drive unit () and receiver unit (). The invention is characterized in that said body () comprises a plurality of longitudinal bars (), each bar () being deformable by bending, such as to form a twist-breakable mechanical fuse.

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Aast, France

Stephane Vergez