Air-compressing injection internal combustion engine and method of operation for an air-compressing injection internal combustion engine

摘要

An air-compressing injection internal combustion engine (1) having an exhaust aftertreatment device (10) and with a fuel injection system (2) comprising a high-pressure pump (3) and at least one injection nozzle (4) for injecting fuel, wherein within a working cycle of the internal combustion engine (1) a main injection and a Additional injection into a combustion chamber of the injection internal combustion engine (1) can be introduced, wherein the additional injection comprises a post-injection, which occurs at a time interval to the main injection at the earliest in the final phase of combustion and the injector (4) provided for the main injection is also used for the post-injection, characterized in that the injector can be actuated to carry out the main injection and the additional injection, and the exhaust-gas aftertreatment device (10) can be supplied with an exhaust gas provided by the additional injection with reducing agents.