Snecma Moteurs

Bien-Aimé Rakotondrainibe

Gael Bouchy

Jacques Roche

Patrick Morel

Daniel J Martin

Jacques Bunel

Pierre Pandelakis

Stéphane Touchaud

Henry Souyeaux

Bertrand Jean-Joseph Marie Heurtel

Eric Jean Masson

The invention relates to a burner ring for turbofan jet engines. The ring includes an upstream annular envelope which forms a channel which is open axially in the downstream direction, and a manifold for injecting fuel into the channel. The ring includes multiple sectors connected together. Each sector has a fuel inlet which is connected to the fuel injection manifold. Part of the upstream annular envelope is in the core flow. Each sector has a connector which receives the fuel inlet and a ventilation duct which extends through the channel and upstream of the injection manifold. Each sector is fitted with an inlet for a bypass air, which air is then emitted by the ventilation duct to cool the injection manifold. A sector of downstream annular envelope is arranged downstream of the injection manifold to protect this manifold.

Afterburner arrangement

The invention relates to a rotary shaft arrangement carrying equipment at one end and extending rearwards from the equipment, the shaft () being supported by a first bearing () behind the equipment, and by a second bearing () behind the first bearing (), the first bearing () being carried by a casing () surrounding the shaft () and extending rearwards from the first bearing () to a stator structure () to which the casing () is fastened by screws () that extend parallel to the shaft () and that are fusible in traction, the arrangement being characterized by the fact that the second bearing () is disposed with radial clearance (J) in a bore () of an annular support () secured to the stator structure (), and is fastened to said annular support () by screws () that are parallel to the shaft () and that are fusible in shear, whereby the second bearing () can bear against said support () in the event of said screws () rupturing. The invention relates more particularly to the support for the fan shaft of a turbojet.

Breakable coupling system for a turbojet fan shaft

Growing community of inventors

Arbonne la Foret, France

Bien-Aimé Rakotondrainibe