Safran Aircraft Engines

Pierre Yves Heinry

Guillaume Julien Puech

Olivier Richard Lefebvre

Aline Bourdais

Ulrich Vincent Max Dubois

Sylvie Judith Devaux

Thibaut Michel Lucien Viller

The invention relates to a device for simulating the centrifugal acceleration applied to at least one aeronautical turbomachine rotor blade. This device is notable in that it comprises at least one rotor disc () comprising a rim in which there are formed a plurality of pockets () delimited by two lateral teeth () and at least one simulation test () which comprises a screw (), a spacer () and a dummy blade (), in the dummy blade comprises a bore (), which is tapped over at least part of its length and in that the dummy blade, the screw and the spacer are configured and arranged in such a way that when the screw is screwed into the tapped bore, the root () of the dummy blade is engaged in the pocket in the disc, the screw comes into abutment against the spacer and presses same against the two lateral teeth situated one on each side of the pocket in the rotor disc and that this causes the dummy blade to move towards the outside of the disc.

Device for simulating the centrifugal acceleration applied to at least one aeronautical turbomachine rotor blade

In order to facilitate the disassembly of a transmission shaft in a turbomachine, an arm for turbomachine casing comprises a body provided with a recess housing a removable part which delimits a shaft housing and is capable of being inserted through a first opening of the recess by means of sliding movement of the removable part parallel to the direction of a central axis of the shaft housing, the first opening of the recess being configured for being arranged opposite an orifice within a casing outer shell ring of the turbomachine.

Arm for turbomachine casing comprising a body and a removable part

The invention relates to a rotating front part of an aircraft turbomachine intake comprising bolts for attaching a cone tip to an internal support, each bolt comprising a rear end that is screwed into the support and a front end that receives a clamping nut, a rotation-prevention portion of non-circular cross section of each bolt engaging with a hole of corresponding cross section of a rotation-prevention ring. Also provided are extraction bolts, of which a rear end is screwed into the filling piece, each bolt passing through a cone tip flange. Finally, the invention is configured such that, after removal of the nuts, forward tension on the bolts allows the removal of an assembly comprising the tip and the filling piece, while keeping the bolts screwed to the support.

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Moissy-Cramayel, France

Pierre Yves Heinry