Mgi Coutier

Hervé Martinengo

Pascal Guerry

Moïse Dominguez

Antony Nollevaux

Thierry Fohrer

Paul Ferrey

A recirculation device includes an air intake duct () which is followed by a manifold (), means for introducing recycled exhaust gases, for mixing same with the fresh air let in. This device is designed to inject the exhaust gases by forming two counter-rotating adjacent vortices (), owing to a twin tubular mixer nozzle () in communication with a common exhaust gas supply duct, positioned tangentially with respect to the two nozzles, placed side by side. The two vortices () are self-sustaining to the outlets () of the manifold (). Such a recirculation device is applied, in particular, to an air intake duct () of oblong cross section and/or to a manifold () with a flattened inlet () and/or a flattened plenum (), in particular for a motor vehicle engine.

Exhaust gas recirculation device for an internal combustion engine

This cyclone device performs diphasic gas-oil separation to remove oil from the recirculated crank cases of an internal combustion engine. Mounted such that it can move vertically inside the cyclone is a body () exhibiting symmetry of revolution, particularly one of cylindro-conical overall shape. The body () delimits, with the walls of the cylindrical collecting zone () and/or of the conical zone () for recuperating the liquid oil, an annular gap () such that the passage cross section can vary according to the self-adjusting heightwise position of the body (), as a function of the gas flow rate. The speed of the gases thus remains constant for variable gas flow rates.

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Chilly, France

Hervé Martinengo