Ifp Energies Nouvelles

Arnaud Krieger

Julien Trost

Xavier Gautrot

Martin Ritter

Sebastien Charmasson

Paul-Georgian Luca

Sébastien Charmasson

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 inlet device () for a cylinder of an internal combustion engine. The gas inlet device () comprises an inlet port (), an inlet valve (), a calibration () of the inlet valve (), means for forming a tumble-type aerodynamic movement of the gas in the cylinder, and a mask (). Furthermore, the intersection () between the inlet port () and the calibration () is along a straight line not parallel to the plane of the firing face (FF). In addition, the mask () is oriented in the same way as the end of the inlet port ().

Gas intake device comprising an oriented masking element

Growing community of inventors

Rueil-Malmaison, France

Arnaud Krieger