Thuyoshi Kitahara

Title: Thuyoshi Kitahara: Innovator in Air/Fuel Ratio Control Systems

Introduction

Thuyoshi Kitahara is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of internal combustion engines, particularly in the area of air/fuel ratio control systems. His innovative approach has led to the development of a patented technology that enhances engine performance and stability.

Latest Patents

Thuyoshi Kitahara holds a patent for a "System for feedback control of air/fuel ratio in IC engine with means to." This patent describes an air/fuel ratio control system that includes an oxygen sensor positioned in the exhaust gas to provide a feedback signal. The oxygen sensor is of the solid electrolyte concentration cell type, equipped with a heater and operated with a supply of DC current to maintain a reference oxygen partial pressure. The system is designed to shift its closed-loop control function to open-loop when the oxygen sensor indicates that the actual air/fuel ratio deviates from the intended ratio due to heater failure. To prevent engine stalling or instability, the system detects heater failure and interrupts the current supply to the concentration cell, prompting the sensor to output a signal indicative of a very high air/fuel ratio.

Career Highlights

Thuyoshi Kitahara is currently employed at Nissan Motor Company Limited, where he continues to work on advancements in automotive technology. His expertise in air/fuel ratio control systems has positioned him as a valuable asset to the company.

Collaborations

Thuyoshi Kitahara collaborates with Kohki Sone, contributing to the development of innovative solutions in the automotive industry.

Conclusion

Thuyoshi Kitahara's work in air/fuel ratio control systems exemplifies the impact of innovation in enhancing engine performance. His patented technology represents a significant advancement in the field, showcasing his dedication to improving automotive engineering.