About IIJIMA AKIRA
About automobile
About internal combustion engine
About improvement of efficiency
About technology
About direct injection
About thermal efficiency
About Otto cycle
About heat loss
About loss
About exhaust gas recirculation
About combustion
About friction loss
About efficiency upgrading
About combustion technology
About 排ガス再循環(EGR)
About homogeneous charge compression ignition
About theoretical thermal efficiency
About Internal combustion engines in general
About Running performance
About 展望
About 高効率化
About 手法
About HCCI燃焼