| 摘要 |
PURPOSE:To improve drive condition in such a way that at the same time as plural pieces of plugs are synchronized to be ignited, ignition timing of each ignition plug is brought to be simultaneously shifted by selecting drive condition in the engine. CONSTITUTION:When the engine has been driven, a breaker 7 is opened and closed. A shift means 9 grounds a breaker 9. When the breaker 7 has been opened and closed, electric current streaming through primary side 31, 41 of first, second coils 3, 4 is conducted and interrupted, which coincides with inducing high voltage on secondary side 32, 42. With rotation of rotors 11, 13, ignition is done in the sequence of ignition plugs 14B, 15B 14C, 15C 14D, 15D 14A, 15A. Corresponding to transition of the engine, the shift means 9 interrupts grounding of the breaker 7, igniting position of each ignition plug 14A-14D, 15A-15D, to perform ignition which is compatible to the drive condition of the engine. |
