Internal-combustion engines – Precombustion and main combustion chambers in series – Having volumetric relation between precombustion and main...
Patent
1995-07-25
1997-12-02
Dolinar, Andrew M.
Internal-combustion engines
Precombustion and main combustion chambers in series
Having volumetric relation between precombustion and main...
123257, 123260, 123305, F02B 108, F02B 1912
Patent
active
056924682
ABSTRACT:
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.
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Craft Todd D.
Haman David F.
Dolinar Andrew M.
Outboard Marine Corporation
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