Hiraki Sawada

Title: Hiraki Sawada: Innovator in Internal Combustion Engine Technology

Introduction

Hiraki Sawada is a notable inventor based in Seki, Japan. He has made significant contributions to the field of internal combustion engine technology, holding a total of 4 patents. His innovative work focuses on enhancing engine efficiency and safety.

Latest Patents

One of his latest patents is an "After Burning Preventive System for an Internal Combustion Engine." This invention features an accumulator chamber that communicates with the atmosphere through a specially designed passage. The passage includes a restriction to limit the cross-sectional area or is equipped with a pressure control valve. This valve opens in response to a pressure difference, maintaining a vacuum differential between the accumulator and vacuum chambers. This system ensures optimal performance when the engine suction vacuum exceeds a predetermined value.

Another significant patent is the "Secondary Air Supply Control Device." This device includes a valve that regulates the pressure of secondary air discharged from a pump to a constant value. A second valve meters the flow based on the amount of air taken into the engine, contributing to improved engine performance.

Career Highlights

Hiraki Sawada is currently employed at Nissan Motor Company Limited, where he continues to develop innovative solutions for internal combustion engines. His work has been instrumental in advancing the technology used in modern vehicles.

Collaborations

Throughout his career, Hiraki has collaborated with talented individuals such as Kizuku Otsubo and Kazuo Toryu. These collaborations have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Hiraki Sawada's contributions to internal combustion engine technology exemplify his dedication to innovation. His patents reflect a commitment to improving engine efficiency and safety, making him a valuable asset in the automotive industry.