Snecma Moteurs

Snecma

Stéphane Touchaud

Eric Conete

Georges Habarou

Pierre Camy

Jacques Roche

Stephane Blanchard

Thierry Pancou

Jacques Bunel

Bien-Aimé Rakotondrainibe

Jean-Michel Campion

Daniel Bernier

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

A support arm () is intended to be installed in a radial position in an afterburner device of a bypass turbojet. The device comprises first and second inner annular casings defining a passage for a primary flow and an outer annular casing defining together with the first inner annular casing a passage for a secondary flow. The arm () comprises a monobloc structure made of composite material including two integral walls (), on the one hand, designed to define a groove () having a substantially V-shaped profile and, on the other hand, including first end parts () joined together and adapted to define a foot () and second end parts () adapted each to define at least one flange () intended to be positively connected to the outer annular casing.

Monobloc flameholder arm for an afterburner device of a bypass turbojet

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Paris, France

Stéphane Touchaud