IGNITION METHOD FOR INTERNAL COMBUSTION ENGINE

摘要

PURPOSE:To eliminate the ignition error and to prevent the impairing of an ignition plug by limitting the repeated or continuous application of high voltage to the upper dead point in normal running and to 20 deg. after the upper dead point in low speed high load running. CONSTITUTION:An ignition system consists of a 25KV AC continuous high voltage generator 10, a distributor 20, a timing generator circuit 30 and the like, said distributor 20 having a detecting part 210 which detects the time of the discharge start and completion and a distributing part 220 which receives high voltage continuously only when the output of the timing generator circuit 30 is on the level 1. The timing generator circuit 30 receives the signals of the first and second detectors 214 and 215 at its detecting part 210 which correspond to 10 deg. before the dead point and 20 deg. after the upper dead point, and sets the ignition start and completion timing at 10 deg. before the dead point and at the dead point for normal running and at 10 deg. before the dead point and at 20 deg. after the dead point for low speed high load running.