Snecma Moteurs

Snecma

Thierry Pancou

Stephane Blanchard

Eric Conete

Guillaume Sevi

Georges Habarou

Pierre Camy

Claude Corbin

Hervé Barret

Stéphane Blanchard

Herve Barret

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

A controlled hot flap shutter for a turbojet nozzle includes a friction surface made of metal, and including straight lateral flanks to reduce the gap between each controlled hot flap shutter and the tracking flap shutters adjacent thereto.

Turbojet axisymmetric nozzle controlled hot flap shutter

The invention proposes a long life nozzle flap for aircraft turbojets. This flap is remarkable in that it is composed of a hollow tapered body () flattened in the transverse direction along straight geometric generating lines (), the body () forming a thin wall () with an approximately constant thickness E, this wall () comprising a continuous inner surface with a radius of curvature equal to at least 2&#xd7;E, the wall () being made of a refractory composite material composed of reinforcing fibers () embedded in a matrix also made from a refractory material, the reinforcing fibers () being arranged in a plurality of continuous layers of fibers () stacked on each other, the fibers () of a layer crossing the fibers () of any adjacent layer.

Long life nozzle flap for aircraft turbojets

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Saintry sur Seine, France

Thierry Pancou