Office National D'etudes Et De Recherches Aerospatiales

Snecma

Christian Guin

Didier Hippolyte Hernandez

Matthieu Francois Rullaud

Florin Paun

Didier Hernandez

Matthieu François Rullaud

A self-adapting gas turbine firebox with variable geometry includes at least one system with variable opening for automatically adjusting a combustion configuration inside a combustion chamber according to an air temperature, particularly of air from a compressor. The adjustment is performed by a thermosensitive member that controls at least one cross-sectional area of a passage to the combustion chamber, for air which participates in the combustion of fuel or participates in a dilution of gases effective inside the combustion chamber.

Self-adapting gas turbine firebox with variable geometry

An air and fuel injection system for a turbine engine combustion chamber dome, including at least two fuel injection devices including a central injector and a peripheral annular injector arranged around the central injector, and an inner annular air inlet channel into which the central injector opens up to enable mixing between the fuel from the central injector and the air inlet into the inner annular channel, and at least one outer annular air inlet channel to enable enrichment of this mix with air and to stabilize the pilot combustion zone, wherein the inner annular channel and at least one outer annular channel are separated by an intermediate annular wall extending around the central injector and having a convergent inner profile.

Injection system for a combustion chamber of a turbine engine, comprising an annular wall having a convergent inner cross-section

Growing community of inventors

Villebon sur Yvette, France

Christian Guin