Izumi Iwaki

Title: Izumi Iwaki: Innovator in Valve Control Systems

Introduction

Izumi Iwaki is a notable inventor based in Tokyo, Japan. She has made significant contributions to the field of refrigeration technology, particularly in valve control systems. Her innovative approach has led to the development of a patented technology that enhances the efficiency of refrigeration cycles.

Latest Patents

Izumi Iwaki holds a patent for a valve control system, valve control apparatus, and valve control method. This invention focuses on a refrigeration cycle system where temperature sensors measure the temperatures Tin and Tout of a refrigerant at the entrance and exit of an evaporator. A control circuit performs PID calculations based on signals from these temperature sensors to control the degree of superheat. This is achieved by calculating an operation amount for the opening degree of an expansion valve. If the operation amount exceeds the limit of the actuator's driving velocity, the control circuit implements a limiter process to ensure stable control of the expansion valve's opening degree.

Career Highlights

Throughout her career, Izumi has worked with prominent companies, including Fujikoki Corporation. Her experience in these organizations has allowed her to refine her skills and contribute to advancements in refrigeration technology.

Collaborations

Izumi has collaborated with various professionals in her field, including her coworker Yoshio Ogawa. Their partnership has fostered innovation and development in valve control systems.

Conclusion

Izumi Iwaki's contributions to valve control technology exemplify her dedication to innovation in the refrigeration industry. Her patented inventions continue to influence the efficiency of refrigeration systems, showcasing her impact as an inventor.