Norikatsu Uejima

Title: Norikatsu Uejima: Innovator in Two-Cycle Engine Technology

Introduction

Norikatsu Uejima is a notable inventor based in Chiryu, Japan, recognized for his contributions to the field of internal combustion engines. He holds two patents that showcase his innovative approach to enhancing engine efficiency and performance.

Latest Patents

Uejima's latest patents include a two-cycle engine design that features a unique configuration of passages connecting crank cases to scavenging ports. This design allows for the efficient feeding of air-fuel mixtures into the cylinder, utilizing a scavenging gas merging chamber to optimize flow. The engine employs first and second pistons that work in opposition, with the first piston managing the exhaust port and the second controlling the scavenging ports. This arrangement promotes a stratified flow of mixtures, enhancing combustion efficiency. His second patent introduces a uniflow, double-opposed piston type two-cycle internal combustion engine, which improves scavenging efficiency by utilizing both rich and lean air-fuel mixtures. This innovative design minimizes the escape of unburned mixtures through the exhaust port, ultimately increasing engine output.

Career Highlights

Uejima is currently associated with Nippon Soken, Inc., where he continues to develop and refine his engine technologies. His work has significantly impacted the automotive industry, particularly in the realm of two-cycle engines.

Collaborations

Uejima has collaborated with notable colleagues, including Masaaki Noguchi and Taro Tanaka, contributing to advancements in engine technology through teamwork and shared expertise.

Conclusion

Norikatsu Uejima's innovative patents and career achievements highlight his significant role in the development of efficient two-cycle engines. His work continues to influence the automotive industry and drive advancements in engine technology.