Direct injection spark-ignited internal combustion engine with intake manifold injection for injecting an additional medium and method for operating such an internal combustion engine

摘要

The invention relates to an internal combustion engine (1), in which each cylinder (1a) has at least two inlet openings (2a, 2b) to which intake pipes (3a, 3b) connect, - each cylinder (1a) for introducing fuel with one Direct injection molding (6) and equipped with a suction pipe injection (4), - each cylinder (1a) is equipped with a suction pipe injection (5) for introducing an additional medium, - both intake manifold injections (4, 5) have a common pressure line (7), optionally with a pump (4d) for conveying fuel or with a pump (5d) for conveying additional fluid is fluidically connectable, and- check valves (4c, 5c) are provided which prevent backflow to the pump (4d, 5d) An internal combustion engine (1) is to be provided which is improved with respect to the injection of the additional medium. This is achieved with an internal combustion engine (1), in which the intake manifold injection (4) of the K a first injection nozzle (4a), which is arranged in a suction line (3a) of a first inlet opening (2a) of the cylinder (1a), - the suction tube injection (5) of the additional medium comprises a second injection nozzle (5a), which in a suction line (3b) of another, second inlet opening (2b) of the cylinder (1a) is arranged, and- the first injection nozzle (4a) and the second injection nozzle (5a) are connected to the common pressure line (7).