Low load driving method for driving reciprocating piston internal combustion engine, computer program product, and reciprocating piston internal combustion engine

摘要

Problem to be solved: to provide a low load operation method for operating a reciprocating piston internal combustion engine, particularly a single flow scavenging two-stroke heavy duty diesel engine.The engine is equipped with a cylinder, in the cylinder, the piston is arranged to be movable in a reciprocating manner between the top dead center corresponding to the crank angle of 0 degrees or 360 degrees and the bottom dead center corresponding to the crank angle of 180 degrees, the engine has an outlet valve, and the outlet valve is The valve hydraulic system provides hydraulic pressure at a predetermined regulated pressure by the hydraulic medium.According to the present invention, within the low load range between 0% and 25% of the maximum engine load, the internal combustion engine is operated in gas mode and the crank angle for opening the exhaust valve of the internal combustion engine is It decreases to a value between 15 ° and 90 ° from the normal crank angle for opening the exhaust valve within the load range exceeding 25% of the maximum engine load.Diagram