The invention relates to a method for heating an exhaust aftertreatment component (48) in an exhaust system (40) of an internal combustion engine (10), comprising the following steps: - opening the inlet valve (20), whereby fresh air flows into the combust...

The oxygen storage amount of a three-way catalyst (15) is estimated based on an upstream-side exhaust air-fuel ratio (FrA/F), and a target air-fuel ratio is controlled such that the estimated oxygen storage amount matches a predetermined target oxygen stor...

The present invention relates to a system (32) for ammonia combustion and exhaust gas treatment, the system (32) comprising: an internal combustion engine (30) for combusting ammonia; and an exhaust system (34) comprising an intake (40) for receiving an ex...

L'invention concerne un moteur à combustion interne (10) comprenant : - un bloc-moteur (20) délimitant une chambre de combustion, - une ligne d'admission (40) de gaz frais dans ladite chambre, - une ligne d'échappement (50) de gaz brûlés hors de ladit...

A three way catalyst (20) and an NO x storage catalyst (22) are arranged in an engine exhaust passage. In an engine low load operating region, a combustion is performed under a lean air-fuel ratio, and when NO x should be released from the NO x storage cat...

When an air-fuel ratio detection performed by detecting an output of a downstream sensor (10), which is a limiting-current type air-fuel ratio sensor arranged at a downstream side of a catalyst (6) in an exhaust passage (4) of an internal combustion engine...

A control apparatus for an internal combustion engine configured to control the internal combustion engine is provided with: a first F/B controlling device configured to perform first F/B control in which an air-fuel ratio of a gas flowing into a three way...

Disclosed is an engine control unit intended to prevent fuel vapors from a fuel tank from being released to the atmosphere and causing degradation of gas emission performance. In order to fulfill the object, a control unit according to an aspect of this in...

An exhaust apparatus for an internal combustion engine comprises: an exhaust heating device (40) provided in an exhaust passage (12) of an internal combustion engine (1) for increasing a temperature of an exhaust gas; an exhaust purification catalyst (13) ...