Snecma

Snecma Moteurs

Hervé Buisson

Eric Lefebvre

Bruce Pontoizeau

Patrick Reghezza

Alain Bassot

Christophe Follonier

Jean-Luc Goga

Anne Thenaisie

Eric Inghels

Christophe Follonnier

A fan rotor for an airplane turbojet including locking blade roots in the respective grooves of an airplane turbojet fan rotor. Each blade root is housed in a groove that is closed by a main latch and by an additional latch that is distinct from the main latch and that is spaced apart therefrom by a predetermined distance.

Fan rotor for an airplane turbojet

A restraining device for a fan blade root, in which a packing member is constituted by a metal structure having hollowed out portions filed in by overmolding with a semi-rigid elastomer material, in particular on a lateral edge concave side between an upstream end zone and a downstream end zone, which end zones are entirely of metal structure, on a lateral edge convex side between the end zones and a central zone that is essentially of metal structure, and on two top portions of the packing member that extend between the elastomer lateral edges on either side of the metal central zone. The metal structure also includes a bottom recess extending over its entire surface between the upstream end zone and the downstream end zone. Hence, the metal structure behaves like a spring blade when the blade turns following a violent impact.

Restraining device for fan blade root

Growing community of inventors

Savigny-Le-Temple, France

Hervé Buisson