A new automatic spark generation system for gasoline engines

This paper presents a new automatic spark system for gasoline engines by reshaping the electric field in the combustion chamber through repositioning high voltage electrodes and applying changes in the electrodes geometry. This system provides better and wider discharge resulting in higher efficiency and ignition rate. Furthermore, a much simpler timing system, relying exclusively on built in control parameters, i.e. chamber pressure, temperature and piston position is needed. Numerical simulation of this newly-proposed design is conducted using a time-dependent solver. In particular, electrical field is investigated along the course line of a single piston. It has been observed that ignition is easier to control at the right piston position and crank angle which will obviously lead to better fuel economy and environmental protection.