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US 6,305,346 B1Granted
Fuel injection internal combustion engine with sub-combustion chamber
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsMinoru Ueda, Yuji Tsushima, Hiroshi Yamashita, Yoshihiro Takada, Yutaka Nishikawa
Life of this patent
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Abstract
A spark-ignition fuel injection internal combustion engine is provided with a sub-combustion chamber in communication with a main combustion chamber. An injecting device intermittently injects mixture gas into the sub-combustion chamber. A volumetric ratio of each of the sub-combustion chamber and the main combustion chamber is set within a range of 1:4 to 3:2.
Claims17
A spark ignition internal combustion engine comprising:
- a main combustion chamber having a first volume;
- a sub-combustion chamber having a second volume communicated with said main combustion chamber;
- an injecting device for intermittently injecting fuel directly into said sub-combustion chamber;
- and
- an igniting device arranged in said sub-combustion chamber for igniting said fuel,
- wherein a ratio of said second volume to said first volume is set within a range of greater than 3:7 to 3:2.
3 more elements
Dependencies are inferred from the claim text.