| 摘要 |
A multipoint ignition engine ( 1 ) includes a central electrode pair ( 9 ), disposed in the center of a combustion chamber ( 2 ), for forming a central spark gap ( 10 ), and a plurality of peripheral electrode pairs ( 12 ) held in a head gasket ( 15 ), which has an opening portion having a substantially identical diameter to an opening portion of a cylinder ( 5 ) in a position corresponding to the opening portion of the cylinder ( 5 ), for forming a plurality of peripheral spark gaps ( 13 ) around the inner periphery of the opening portion in the cylinder ( 5 ). An air-fuel mixture in the combustion chamber ( 2 ), which is obtained by mixing together fuel and air evenly to the stoichiometric air-fuel ratio or a richer/leaner air-fuel ratio than the stoichiometric air-fuel ratio, is ignited using both the central spark gap ( 10 ) and the plurality of peripheral spark gaps ( 13 ).
|
