METHOD OF CONTROLLING AN INTERNAL COMBUSTION ENGINE

摘要

IC engines have an arrangement for increasing turbulence in the combustion chamber(17) under at least certain load and/or speed conditions so as to permit the use of a relatively simple spark advance mechanism. The film propogation is controlled by controlling the degree of turbulence to achieve the desired effect. The turbulence is generated by causing induction of at least a portion of the engine charge requirements through a relatively small cross sectional area auxiliary induction passage. Because of the small cross sectional area, high flow velocities are generated which are maintained in the combustion chamber.