Onera (office National D'etudes Et De Recherches Aerospatiales)

Office National D'etudes Et De Recherches Aerospatiales

Office National D'etudes Et De Recherches Aerospatiales (onera)

Isitek

Onera

Florin Paun

Pierre J Josso

Marie-Pierre Bacos

Jason Hayes Nadler

Christian Guin

Jason Nadler

Philippe Dreuillet

Gérard Bobillot

Luc Vignaud

François Tardivel

Stéphane Gasser

Stephane Gasser

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

System () for detecting the position of a mobile or immobile entity () in a defined space (), characterized in that it includes:

System for detecting persons in a defined space

A structural element used for attenuating aviation turbine noise is provided with pores () embodied in the form of cylindrical channels which are open on the first ends inside the turbine housing and closed on the opposite ends thereof, wherein the diameter (D) of each channel ranges approximately from 0.1 to 0.3 mm, each channel is remote at least along one part of the length thereof from the closest neighbors at a minimum distance ranging approximately from 0.02 to 0.3 mm and the ratio between the channel length and diameter thereof is of the order of 10.

Porous metal bodies used for attenuating aviation turbine noise

Hollow metal spheres are heated in a high vacuum in the presence of an organic substance, at a temperature at least equal to the melting point of a eutectic between carbon and the metallic constituents of the said spheres.

Process for the pressureless sintering of metal alloys; and application to the manufacture of hollow spheres

Growing community of inventors

Issy les Moulineaux, France

Florin Paun