Internal combustion engine for motor vehicle, has oxidation catalyst and injecting mechanism arranged between exhaust tube and heat exchanger for injecting secondary fuel into exhaust tube

摘要

The engine (1) has a cooling circuit (3) for distributing liquid coolant between the engine and an exhaust gas heat exchanger (5). An exhaust system (2) includes an exhaust tube (6) for releasing exhaust gas from the engine. An oxidation catalyst (15) and an injecting mechanism (20) are arranged between the exhaust tube and heat exchanger for injecting secondary fuel into the exhaust tube. An independent claim is included for the operation method of the internal combustion engine.