Yoshihiro Nakagawa

Title: Innovations by Yoshihiro Nakagawa

Introduction

Yoshihiro Nakagawa is a notable inventor based in Fuchu-cho, Japan. He has made significant contributions to the field of internal combustion engines, holding two patents that enhance engine efficiency and performance.

Latest Patents

His latest patents include an innovative intake manifold for engines. This design improves the efficiency of assembling multiple on-off valves into a manifold body while reducing resistance to the rotation of a shaft after assembly. The invention features frame members fitted in the downstream end portions of individual intake passage sections, with on-off valves placed inside these frame members. A shaft is passed through the on-off valves, allowing the frame members to support the valves and the shaft. Additionally, a cutout in the surrounding wall of each frame member enables elastic deformation, enhancing functionality.

Another significant patent is for an intake system with a mechanical supercharger for internal combustion engines. This system includes an intake passage equipped with a throttle valve, a mechanical compressor supercharger, and an inter-cooler. The design allows for efficient air delivery into the engine's cylinders, with bypass passages that optimize performance under varying load conditions.

Career Highlights

Yoshihiro Nakagawa is currently employed at Mazda Motor Corporation, where he continues to innovate in engine technology. His work focuses on enhancing engine performance and efficiency, contributing to the automotive industry's advancements.

Collaborations

He has collaborated with notable coworkers, including Tsuyoshi Goto and Kouichi Hatamura, who share his commitment to innovation in automotive engineering.

Conclusion

Yoshihiro Nakagawa's contributions to engine technology through his patents reflect his dedication to improving automotive performance. His work at Mazda Motor Corporation continues to influence the future of internal combustion engines.