FIELD: engines.
SUBSTANCE: invention relates to methods and systems for recovery of device cleaning. Recovery method includes steps of combustion in engine cylinder during cycle of cylinder, a certain amount of injected fuel in fuel injection pulse after combustion event in cylinder and to close outlet valve during cycle of cylinder by a controller, wherein amount of fuel in fuel injection pulse is controlled by density of gas mixture in cylinder, and penetration into cylinder fuel injection pulse is controlled at cylinder and reduce device cleaning by amount of fuel.
EFFECT: technical result is reduced introduction of fuel into oil.
20 cl, 4 dwg
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