FIELD: engines.
SUBSTANCE: invention relates to fuel injection systems in internal combustion engines. To solve set task, fuel injection system for an internal combustion engine in accordance with present invention reduces rate of fuel injection into cylinder, by which is meant ratio of fuel injected through first fuel injection valve to amount of fuel injected via second fuel injection valve, if amount of particulate matter retained by particulate filter exceeds a threshold value, thereby reducing amount of particulate matter emitted by internal combustion engine.
EFFECT: technical result is design of a fuel injection system suitable for an internal combustion engine with spark ignition, equipped with a first fuel injection valve for injecting fuel into a cylinder, second fuel injection valve for injecting fuel into inlet duct and a particulate filter installed in exhaust passage of engine.
8 cl, 3 dwg
