Turbocharged internal combustion engine equipped with a Lean NOx Trap

The invention relates to an internal combustion engine (110) comprising: a NOx trap for lean operation (285), a turbocharger (230) having a turbine (250) and an electronic control device (450) adapted to during the execution of the regeneration process, regulate a position of an actuator (290, 251)...

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Bibliographische Detailangaben
Hauptverfasser: DAVIDE GESSAROLI, Davide Francesco Mercuri, Paolo Olmo, Giorgio Nati
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to an internal combustion engine (110) comprising: a NOx trap for lean operation (285), a turbocharger (230) having a turbine (250) and an electronic control device (450) adapted to during the execution of the regeneration process, regulate a position of an actuator (290, 251) which influences a rotational speed of the turbine (250) by means of a closed-loop strategy For controlling an air pressure in an intake line (205) downstream from a compressor (240) of the turbocharger (230) and upstream of a throttle valve (330). 本发明涉及种内燃机(110),包括:贫燃NOx捕集器(285)、具有涡轮(250)和电子控制装置(450)的涡轮增压器(230),电子控制装置(450)设计用于:-实施用于贫燃NO捕集器的再生过程,和-在再生过程期间调节促动器(290,251)的位置,借助带有闭式调节回路的用于控制进气管(205)中涡轮增压器(230)的压缩机(240)下游和节流阀(330)上游的气压的策略,促动器(290,251)影响涡轮(250)的旋转速度。