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AssigneeToyota Jidosha Kabushiki Kaisha
InventorsFumiaki Hattori, Hiroyuki Hokuto, Toshimi Kashiwagura, Mutsumi Kanda, Makoto Koike, Tetsunori Suzuoki
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A direct cylinder injection-type spark ignition internal combustion engine is disclosed. The internal combustion engine comprises a spark plug 6, a cavity 8 formed in the top surface of the piston, and a fuel injection valve 7 for injecting fuel into said cavity in nearly the shape of a fan having a relative small thickness. A side wall 8b of the cavity opposed to the fuel injection valve for leading the fuel to the vicinity of the spark plug, has a horizontal arcuate shape which is nearly symmetrical to a first vertical plane (N1). The first vertical plane is separated away from a vertical center plane (Nc) at the center of the fuel and is nearly parallel with the vertical center plane.
A direct cylinder injection-type spark ignition internal combustion engine comprising a spark plug, a cavity formed in the top surface of the piston, and a fuel injection valve for injecting fuel into said cavity in nearly the shape of a fan having a relative small thickness, wherein a side wall of said cavity opposed to said fuel injection valve, for leading said fuel to the vicinity of said spark plug, has a horizontal arcuate shape which is nearly symmetrical to a first vertical plane, said first vertical plane being separated away from a vertical center plane at the center of said fuel and being nearly in parallel with said vertical center plane.
Dependencies are inferred from the claim text.