In an electronic control unit 31, a duty conversion map 41 from which a driving duty in energizing and driving an electromagnetic coil, not shown, of an electromagnetic vacuum adjustment valve 12 on the basis of a variable equivalent to target quantity of ...

The method involves performing scavenging of waste gas from a cylinder, in admission phase, in a valve intersection phase in which an exhaust valve (20 1) and an inlet valve (14 1) are simultaneously opened. Opening of an exhaust valve (20 3) of a cylinder...

An exhaust driven turbocharger for an IC engine, e.g. Otto or diesel engine, has an improved gas flow management system which boots low speed performance and reduces the so called turbo hole effect. The management system operates inside a map comprising th...

The method involves driving a turbine of the respective exhaust gas turbocharger with air under pressure (cold test) and testing at least using measurement parameters on the compressor of the respective turbocharger. The air pressure is at least partly gen...

A total pressure exhaust gas recirculation duct system includes a turbocharger having a turbine inlet scroll, an exhaust gas recirculation duct and a valve assembly disposed between a port and inlet scroll and the inlet to the exhaust gas recirculation duc...