New Developments and Optimization of The Advanced Corona Ignition System (ACIS)

This paper describes the application of modelling and experimental methods to the development of igniters for a corona ignition system. Steps are described to address the problems typically encountered when designing such an igniter, including electrical, thermal, and durability concerns. Solutions are presented for “streamer” designs in which corona propagates freely in space through the combustion chamber, leading to excellent ignition. In addition, novel solutions are presented for “barrier discharge ignition” (BDI) igniters which allow many of the drawbacks formerly encountered with this igniter type to be avoided.