Daisuke Akihisa

Internal combustion engine with variable compression ratio

Internal combustion engine with variable compression ratio and valve characteristics

Research on Improving Thermal Efficiency through Variable Super-High Expansion Ratio Cycle

Variable compression ratio mechanism

Internal combustion engine equipped with variable compression ratio mechanism

Spark-ignited internal combustion engine and method of controlling the same

Method of controlling a mechanical compression ratio, a closing timing of an intake valve and air stream

INTERNAL COMBUSTION ENGINE CAPABLE OF VARYING COMPRESSION RATIO AND VALVE CHARACTERISTIC

Valve timing control system of variable compression ratio internal combustion engine

HIGH EXPANSION RATIO INTERNAL COMBUSTION ENGINE