Ifp Energies Nouvelles

Sebastien Charmasson

Olivier Laget

Julien Trost

Xavier Gautrot

Martin Ritter

Julien Thiriot

Arnaud Krieger

Christophe Lechard

Didier Ambrazas

Cyprien Ternel

Pierre Viot

The present invention relates to a gas intake device () for a cylinder of an internal-combustion engine. The gas intake device comprises two intake pipes (), two intake valves (), two intake valve calibration parts () and, in each intake pipe (), means for forming an aerodynamic gas motion of tumble type in the cylinder. Furthermore, for each intake pipe (), the intersection between intake pipe () and calibration part () occurs along a line non-parallel to the plane of the fire face. Besides, the inclination angle of this intersection is different for each pipe ().

Gas intake device having two asymmetrical intake ducts

The present invention relates to a gas intake pipe () for a cylinder of a thermal engine. The pipe comprises means for diverting the gas so as to generate a tumble type aerodynamic motion of the gas within the cylinder. The diversion means comprise at least a 'ramp' shape () on the lower profile () of the pipe and a concave zone on the upper profile () of intake pipe ().

Gas inlet duct generating an aerodynamic movement of gas within a cylinder

Growing community of inventors

Reil-Malmaison, France

Sebastien Charmasson