Multicylinder internal combustion engine for vehicle, has cylinders each including outlet channel to evacuate exhaust gas from cylinders, where channels are arranged to obtain rotary movement of gas

摘要

The engine has a cylinder case including cylinders (C1-C4) forming combustion chambers, and a cylinder head (14) with exhaust valves (16). Each cylinder has an outlet channel (18) to evacuate exhaust gas from the cylinders, where the channels are arranged such that to obtain a rotary movement of the exhaust gas. A collector (20) is fixed on the cylinder head to collect the exhaust gas and to transmit the gas to an exhaust line.