Intake valve of diesel engine with control of intake flow field

摘要

The present invention relates to an intake valve provided in an intake port for drawing a mixer into a combustion chamber of a diesel engine or discharging a combustion gas to the outside and having a valve head having a predetermined curved surface, The curvature radii of the curved surfaces formed on the heads of the first and second intake valves provided in the intake port are different from each other. This is because there is a difference in the momentum of the intake air introduced through the first and second intake valves Which is dominated by the main flow valve in the combustion chamber.