| 摘要 |
When an internal combustion engine supercharged by way of an exhaust-driven turbocharger is operated, compressed charge air is diverted as a function of the operating point of the internal combustion engine, by opening a shutoff valve in an overflow duct, out of a charge air duct leading to the internal combustion engine into an exhaust gas duct to the turbine of the exhaust-driven turbocharger in the presence of a driving pressure drop. In order to optimize supercharging performance over the entire operating characteristics diagram of the internal combustion engine, and decrease the exhaust emissions of the internal combustion engine, provision is made for the overflow duct to be enabled as necessary, for the recirculation of exhaust gas into the charge air duct, when a pressure drop driving toward the charge air duct is present. |
