Ignition system energy storage method

Which engine developments require high energy ignition systems?

Other engine developments requiring high energy ignition systems include natural gas engines and cold-starting applications of diesel and methanol fuelled engines. This paper reviews progress on alternative ignition systems that supply higher energy sparks and sparks where the energy is more efficiently transferred to the gas mixture.

What is a high energy ignition system?

The energies delivered to the gases in the spark gap are usually of the Application of high energy ignition systems to engines order of 30 mJ, which is 10-100 times greater than the minimum ignition energy for combustible fuel-air mixtures under ideal conditions.

How does an inductive ignition system work?

The inductive ignition system generates in each power stroke the high voltage required for flash -over and the spark duration required for ignition. The electrical energy drawn from the vehicle electrical system battery is tem-porarily stored in the ignition coil for this purpose.

What are enhanced ignition systems?

Many of these systems have features which improve the delivery of ignition energy to the combustible mixture or allow the ignition energy to be dispersed throughout the combustible charge. These will be referred to as enhanced ignition systems.

Does a lean mixture engine need a high energy ignition system?

However, lean mixture engines ( φ < 0.7) generally require much higher ignition energy to ensure reliable ignition. Other engine developments requiring high energy ignition systems include natural gas engines and cold-starting applications of diesel and methanol fuelled engines.

How much energy does an ignition system need?

With conventional ignition systems, energy levels in excess of 15mJ are needed to generate a high-voltage flashover at the moment of ignition at high breakdown volt-ages. This additional energy is required to charge the capacitance on the secondary side.