Internal combustion engine with indirect injection, in particular a supercharged engine with controlled ignition with two intakes to provide a phase of scavenging burned gases

摘要

The engine has a cylinder (10) with carburized and uncarburized air inlet units (14, 16) with carburized and uncarburized air inlet valves (22, 24), respectively. The valve (24) is controlled by opening/closing of an opening by a variable valve timing type controlling unit (44) having a rotating camshaft (46) and a cam (48) for varying a raised status of the valve (24). The valve (22) is controlled by an additional controlling unit having a cam shaft and an activation unit (52) for activating the valve (22) controlled by an controlling unit (36) of a burned gas exhausting unit (28).