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An internal combustion engine comprising an engine block defining a cylinder having a longitudinal axis, an upper end, and a cross-sectional area in a plane perpendicular to the axis, a piston reciprocally moveable in the cylinder along the axis, the piston having an upper surface, a cylinder head i

An internal combustion engine comprising an engine block defining a cylinder having a longitudinal axis, an upper end, and a cross-sectional area in a plane perpendicular to the axis, a piston reciprocally moveable in the cylinder along the axis, the piston having an upper surface, a cylinder head including a lower surface portion closing the upper end of the cylinder, the lower surface portion extending generally perpendicular to the axis and having therein an upwardly extending recess, the recess having an upper end, a lower end, and a height, the lower end of the recess having an area in a plane perpendicular to the axis, the area being equal to approximately one-fifth the cross-sectional area of the cylinder, the height being equal to at least one-third of the cylinder diameter, a fuel injector supported relative to the cylinder head for injecting fuel into the recess, and a spark plug which is supported relative to the cylinder head and which extends into the recess for creating a spark.

대표청구항 ▼

An internal combustion engine comprising an engine block defining a cylinder having a longitudinal axis and an upper end, a piston reciprocally moveable in said cylinder along said axis, a cylinder head including a lower surface portion closing said upper end of said cylinder so as to define a combu

An internal combustion engine comprising an engine block defining a cylinder having a longitudinal axis and an upper end, a piston reciprocally moveable in said cylinder along said axis, a cylinder head including a lower surface portion closing said upper end of said cylinder so as to define a combustion chamber between said piston upper surface and said cylinder head lower surface portion, said cylinder head lower surface portion extending generally perpendicular to said axis and having therein an upwardly extending recess, said recess being generally cylindrical and being centered on said cylinder axis, a fuel injector supported relative to said cylinder head for injecting fuel into said combustion chamber so as to create a cone of fuel spray surrounded by a volume of fuel vapor, and a spark plug which is supported relative to said cylinder head, which extends into said combustion chamber, and which includes a spark gap located outside said fuel spray cone and within said fuel vapor volume.