Kakuro Kokubo

Title: The Innovative Contributions of Kakuro Kokubo

Introduction

Kakuro Kokubo, an accomplished inventor based in Ohi, Japan, has made significant strides in the field of fuel supply technologies. With a total of four patents to his name, Kokubo has demonstrated exceptional ingenuity and commitment to improving internal combustion engines and their efficiency.

Latest Patents

Among his latest innovations, Kokubo has developed a fuel supply control method, accompanied by an advanced ultrasonic atomizer. This innovative system allows for fuel supply in an ultrasonic atomizer based on a unique fuel increment ratio pattern, where the increment of fuel for starting and warming up is 70% or less compared to conventional pressure injection valve systems. Such an approach enhances startability, accelerability, and fuel consumption rates, while simultaneously reducing exhaust emissions.

In low-temperature conditions, Kokubo's design facilitates continuous fuel injection, ensuring uniformity and reducing the mean diameter of atomized fuel droplets, which significantly improves ignitability and startability. The fuel injection timing is adapted to the combustion chamber temperature, emphasizing a predetermined delay in fuel injection until the temperature is sufficiently elevated, leading to better cold startability, even with fuels of higher flash points. Moreover, during transient engine conditions, the system activates fuel injection immediately before the rise in air stream velocity, promising effective atomization and transportation of fuel to the combustion chamber.

Another notable patent involves a method for supplying fuel to internal combustion engines that incorporate an ultrasonic atomizer and a fuel injection valve. This system is designed for engines operating with fuels of low startability. It includes a catalyzer unit between the ultrasonic atomizer and the fuel injection valve, facilitating the production of an intermediate volatile product during engine start-up, thus enhancing engine startability under adverse temperature conditions.

Career Highlights

Kakuro Kokubo has contributed his skills to several reputable organizations, notably Tonen Corporation and the Japan Automobile Research Institute. His work within these institutions has guided advancements in fuel technology, supporting the development of environmentally friendly and efficient engine systems.

Collaborations

Throughout his career, Kokubo has worked alongside esteemed colleagues, including Kazushi Tsurutani and Daijiro Hosogai. Their collaborative efforts have fostered knowledge sharing and innovation, driving the growth of patentable developments in the automotive field.

Conclusion

Kakuro Kokubo stands as a pioneering figure in fuel supply innovations, with his work leading to remarkable improvements in fuel efficiency and reduced emissions for internal combustion engines. As he continues to push the boundaries of technology, Kokubo's inventions represent valuable contributions to the future of sustainable automotive engineering.