Kouji Sumida

Title: Innovations of Kouji Sumida in Spark Ignition Engine Technology

Introduction

Kouji Sumida is a notable inventor based in Fuchu-cho, Japan, recognized for his contributions to spark ignition engine technology. He holds a total of six patents, showcasing his innovative approach to improving fuel efficiency and emission performance in automotive engines.

Latest Patents

Sumida's latest patents include a spark ignition engine control device designed to enhance fuel efficiency through lean combustion. This invention allows for efficient compression ignition in specific cylinders, optimizing the performance of a multi-cylinder spark ignition engine. The device introduces exhaust gas from preceding cylinders into following cylinders, ensuring that combustion occurs under controlled conditions. Another significant patent is the control device for spark-ignition engines, which aims to improve emission-cleaning performance using a three-way catalyst. This invention enables lean burn operation while maintaining fuel economy, demonstrating Sumida's commitment to advancing engine technology.

Career Highlights

Kouji Sumida is currently employed at Mazda Motor Corporation, where he applies his expertise in engine technology to develop innovative solutions. His work has significantly contributed to the automotive industry, particularly in enhancing engine performance and reducing emissions.

Collaborations

Sumida collaborates with talented colleagues, including Takayoshi Hayashi and Mitsuo Hitomi, to drive forward the research and development of advanced engine technologies. Their combined efforts have led to significant advancements in the field.

Conclusion

Kouji Sumida's innovative work in spark ignition engine technology has made a substantial impact on fuel efficiency and emissions in the automotive sector. His patents reflect a deep understanding of engine dynamics and a commitment to sustainable automotive solutions.