INTERNAL COMBUSTION ENGINE ARRANGEMENT

The present invention relates to an internal combustion engine arrangement () comprising a first () and a second () expansion cylinder, and an interconnection conduit () between an outlet () of the first expansion cylinder () and an outlet () of the second expansion cylinder (), wherein the outlet of the first expansion cylinder is further arranged in fluid communication with an exhaust gas recirculation (EGR) conduit () for delivery of a flow of combusted exhaust gas to an intake passage of the internal combustion engine arrangement, and wherein the second expansion cylinder comprises a reducing agent injection device () for controllably delivery of a reducing agent into the second expansion cylinder.