Patent ID: 9035564
Filing Date: 2015-05-19
Classification: F02P,H01T,H05H

Abstract:
1. A high-frequency discharge ignition apparatus comprising: an ignition plug for causing spark discharge between electrodes opposing each other via a gap to ignite combustible air-fuel mixture in a combustion chamber of an internal combustion engine; a spark discharge path generation apparatus for generating predetermined high voltage and supplying the generated predetermined high voltage to the ignition plug, thereby forming a path for the spark discharge in the gap; a resonance apparatus configured to form a band pass filter; a current supply apparatus for supplying AC current to the path for spark discharge formed in the gap, via the resonance apparatus; a current level detection apparatus for detecting the level of the AC current supplied from the current supply apparatus or a level corresponding to the level of the AC current, and outputting a value corresponding to the detected level; and a control apparatus for controlling output of the AC current supplied from the current supply apparatus, in accordance with the output of the current level detection apparatus.