INTERNAL COMBUSTION ENGINE

摘要

Internal combustion engine comprising a combustion chamber, a main intake passage communicating with the combustion chamber through an intake port, an intake valve provided in the intake port, an auxiliary passage having one end opening to the main intake passage at an area adjacent to the intake port, a control valve provided in the main intake passage and adapted to be closed under a light load operation so that intake flow of fluid is introduced at a high speed through the auxiliary passage into the combustion chamber, characterized by control means for changing the timing at which peak pressure is produced in the combustion chamber, means for interconnecting the control valve and the control means so that the control means is actuated when the control valve is closed so as to retard the timing at which the peak pressure is produced.