Patent ID: 9246313
Filing Date: 2016-01-26
CPC Classification: F02P,H01T

Claim Text:
1. An ignition system comprising: an ignition plug having a center electrode and a ground electrode; a discharge power supply for applying a voltage to a gap formed between the center electrode and the ground electrode so as to generate spark discharge at the gap; a high-frequency power supply for supplying a high-frequency current to the gap so as to generate high-frequency plasma at the gap; a mixer which is electrically connected to the ignition plug and through which current output from the discharge power supply and current output from the high-frequency power supply flow, wherein when an oscillation frequency of a current which flows between the matching unit and the mixer when spark discharge is generated is represented by fs (Hz), a current whose oscillation frequency is equal to the oscillation frequency fs flows between the matching unit and the mixer when spark discharge is not generated.