| abstract |
The invention relates to a petrol engine arrangement and to a method for operating the petrol engine arrangement, wherein the petrol engine arrangement comprises a petrol engine (1) and an exhaust gas aftertreatment system (2) having a main catalytic converter (3), a petrol engine particulate filter (4) and a lean NOx trap (10), wherein the main catalytic converter (3) is designed or acts as a 3-way catalytic converter, the petrol engine particulate filter (4), which optionally acts as a 4-way catalytic converter, is arranged downstream of the main catalytic converter (3), the lean NOx trap (10) is arranged downstream of the petrol engine particulate filter (4), and an oxidation catalytic converter (18) is optionally arranged upstream of the lean NOx trap (10). |