Etsuo Kunimoto

Title: Etsuo Kunimoto: Innovator in Fuel Injection Technology

Introduction

Etsuo Kunimoto is a notable inventor based in Nagasaki, Japan. He has made significant contributions to the field of fuel injection technology, holding a total of 2 patents. His work focuses on enhancing the efficiency and performance of dual-fuel engines.

Latest Patents

One of Kunimoto's latest patents is an injection system for a dual-fuel engine. This innovative system operates using a main fuel with a low cetane number and an auxiliary fuel with a high cetane number. The design includes a pressure regulating check valve that works in parallel with a delivery valve in the main fuel injection pump. This setup allows fuel to flow only in the direction opposite to that of the delivery valve. Additionally, a control valve feeds the auxiliary fuel, which is pressurized by a fuel feed pump, to a fuel injection valve at an appropriate feed rate and timing regulated by a control device. Another significant patent is a fuel injection device that connects a fuel injection pump through a fuel injection pipe to a fuel injection nozzle. The inner diameter of the fuel injection pipe is reduced from the side of the fuel injection pump towards the nozzle, either in a stepwise manner or continuously.

Career Highlights

Etsuo Kunimoto is associated with Mitsubishi Jukogyo Kabushiki Kaisha, where he has been instrumental in developing advanced fuel injection systems. His expertise in this area has contributed to the company's reputation for innovation in automotive technology.

Collaborations

Kunimoto has worked alongside notable colleagues such as Mataji Tateishi and Tatsuo Takaishi. Their collaborative efforts have furthered advancements in fuel injection technology.

Conclusion

Etsuo Kunimoto's contributions to fuel injection technology demonstrate his commitment to innovation and efficiency in engine performance. His patents reflect a deep understanding of engineering principles and a drive to improve automotive technology.