Double Cylinder Ignition Of Ignition Coil

The dual cylinder ignition method refers to two cylinders sharing an ignition coil, so this ignition method can only be used on engines with an even number of cylinders. If on a 4-cylinder engine, when both cylinder pistons are close to top dead center (one is compression and the other is exhaust), the two spark plugs share the same ignition coil and ignite simultaneously. At this time, one is effective ignition and the other is ineffective ignition. The former is in a high-pressure and low-temperature mixture, while the latter is in a low-pressure and high-temperature exhaust gas. Therefore, the resistance between the spark plug electrodes of the two is completely different, and the energy generated is also different, The energy that leads to effective ignition is much greater, accounting for about 80% of the total energy.