Birch, Stewart, Kolasch & Birch, LLP
Fuel injection internal combustion engine with sub-combustion chamber
 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. 
Honda Giken Kogyo Kabushiki Kaisha
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Hiroshi Yutaka Minoru Yoshihiro Yuji
Yamashita Nishikawa Ueda Takada Tsushima