Multipoint ignition engine
First Claim
1. A multipoint ignition engine, comprising:
- a cylinder head having a combustion chamber formed on a bottom surface thereof;
a cylinder block having a cylinder in a position opposing the combustion chamber;
a piston accommodated in the cylinder;
a central electrode pair, disposed in a center of the combustion chamber, for forming a central spark gap; and
a plurality of peripheral electrode pairs held in an insulating member, which has an opening portion having a substantially equal diameter to an opening portion of the cylinder in a position corresponding to the opening portion in the cylinder, for forming a plurality of peripheral spark gaps around an inner periphery of the opening portion in the cylinder,wherein an air-fuel mixture in the combustion chamber, which is obtained by mixing together fuel and air evenly, is ignited using both the central spark gap and the plurality of peripheral spark gaps.
1 Assignment
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Accused Products
Abstract
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).
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Citations
30 Claims
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1. A multipoint ignition engine, comprising:
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a cylinder head having a combustion chamber formed on a bottom surface thereof; a cylinder block having a cylinder in a position opposing the combustion chamber; a piston accommodated in the cylinder; a central electrode pair, disposed in a center of the combustion chamber, for forming a central spark gap; and a plurality of peripheral electrode pairs held in an insulating member, which has an opening portion having a substantially equal diameter to an opening portion of the cylinder in a position corresponding to the opening portion in the cylinder, for forming a plurality of peripheral spark gaps around an inner periphery of the opening portion in the cylinder, wherein an air-fuel mixture in the combustion chamber, which is obtained by mixing together fuel and air evenly, is ignited using both the central spark gap and the plurality of peripheral spark gaps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification