Patent ID: 9581125
Date: 2017-02-28
CPC Classifications: F02P

Claim:
1. An ignition device of an internal combustion engine which carries out ignition of an air-fuel mixture by repeatedly applying a voltage across electrodes of an ignition plug thereby producing a plurality of discharges, the ignition device comprising an ignition improvement means which, in the presence of a gas flow of given strength of which direction is perpendicular to a direction that connects the electrodes with a shortest distance, is able to produce a discharge channel longer than the shortest distance thereby to assure the ignition in the presence of the gas flow, the ignition improvement means being so constructed that a time interval of discharges is set with respect to the strength of the gas flow and the life of active species produced by the discharges, so that the discharge channel caused or produced by the discharges is gradually extended in the gas flow direction and extension of the discharge channel is stably carried out by a plurality of times.