Patent ID: 6837229
Filing Date: 2005-01-04
Classification: F02P

Abstract:
1. An ignition device for an internal combustion engine, comprising: a plurality of spark plugs provided to an ignition apparatus, wherein the plurality of spark plugs are provided in each internal combustion engine cylinder; an ignition coil independently arranged corresponding to each of the spark plugs; an ignition power source circuit for supplying electrical energy to a first coil which is part of the ignition coil; and an electrical supply circuit for switching on and off an electrical supply from the ignition power source circuit to the first coil, wherein the plurality of first coils corresponding to the plurality of spark plugs arranged to the same single cylinder are connected in parallel with the single electrical supply circuit arranged to each cylinder, and the electrical supply circuit simultaneously supplies electricity to the plurality of first coils corresponding to the plurality of spark plugs arranged to the same cylinder.