Snecma

Snecma Moteurs

Jacques Bunel

Jacques Roche

Bien-Aimé Rakotondrainibe

Stéphane Touchaud

Frederic Ruellan

Philippe Henry

A device for feeding air and fuel to a burner ring in an after-burner chamber, including a plurality of flame-holder arms extending radially about the axis of the chamber from an outer casing, and a burner ring made up of ring sectors mounted substantially end to end on the flame-holder arms, the ring sectors containing fuel feed rail and air manifold boxes.

Device for feeding air and fuel to a burner ring in an after-burner chamber

Device for fixing a burner ring onto flameholder arms () in an afterburner combustion chamber of a turbojet engine, the burner ring being formed of ring sectors () placed more or less end to end and the ends of which are housed and guided between two circumferentially-directed parallel plates () of the flameholder arms () and are immobilized between these plates () by locking pieces () which are themselves held between the plates () by immobilizing means () engaged in aligned orifices () in the plates () and in the locking pieces ().

Device for fixing a burner ring in an afterburner combustion chamber of a turbojet engine

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.

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Fresnes, France

Jacques Bunel