Toshihiro Yamada

Title: Innovations of Toshihiro Yamada

Introduction

Toshihiro Yamada is a notable inventor based in Osaka-fu, Japan. He has made significant contributions to the field of refrigeration technology, holding a total of 3 patents. His work focuses on improving the efficiency and functionality of absorption refrigeration systems.

Latest Patents

One of Yamada's latest patents is an absorption type refrigerating machine. This innovative design features a double-effect absorption chiller that utilizes a high-temperature generator to produce refrigerant vapor. The vapor is then supplied to a low-temperature generator for condensation. The system includes a pipe for supplying the liquefied refrigerant to a condenser, equipped with an orifice and a control valve for pressure adjustment. The control circuit ensures that the valve remains fully open during startup until the load stabilizes, after which the opening degree is gradually decreased.

Another significant patent is for a high-temperature regenerator. This device incorporates vertical liquid pipe groups that are positioned near a combustion flame and gas from a burner. The design includes a double can wall that communicates with the upper and lower portions of the liquid pipes, effectively heating and concentrating a diluted absorption solution. The innovative solution inlet allows for the sprinkling of the diluted absorption solution, which collects heat from exhaust gas, increasing its temperature and activating circulation flow through boiling. This design enhances the total heat transfer coefficient while preventing local temperature rises that could lead to corrosion or crystallization.

Career Highlights

Toshihiro Yamada is currently employed at Sanyo Electric Co., Ltd., where he continues to develop cutting-edge technologies in refrigeration. His work has been instrumental in advancing the efficiency of absorption refrigeration systems, making significant impacts in the industry.

Collaborations

Yamada has collaborated with several talented individuals, including Makoto Nakamura and Atsushi Shitara. Their combined expertise has contributed to the successful development of innovative refrigeration technologies.

Conclusion

Toshihiro Yamada's contributions to the field of refrigeration through his patents and collaborations highlight his role as a leading inventor in this technology. His work continues to influence advancements in energy-efficient refrigeration systems.