Toru Shiraishi

Title: Innovations of Toru Shiraishi

Introduction

Toru Shiraishi is a notable inventor based in Hiroshima, Japan. He has made significant contributions to the field of internal combustion engines, holding a total of 3 patents. His work focuses on enhancing engine efficiency and performance through innovative designs.

Latest Patents

One of Shiraishi's latest patents is for a multi-valve internal combustion engine. This design features multiple intake valves and corresponding intake ports for each engine cylinder. Notably, one of the intake ports includes a helical passage that opens into the combustion chamber at the location of the spark plug. This configuration allows for improved fuel injection, particularly with the addition of a secondary fuel injector that operates during lower load conditions.

Another significant patent is for an engine control system tailored for multi-valve engines. This system includes a variety of intake ports that open into the combustion chamber at varying distances from the spark plug. The control mechanism ensures that the intake port closest to the spark plug is opened slightly during the early intake cycle, optimizing air aspiration at a later stage.

Career Highlights

Toru Shiraishi is currently employed at Mazda Motor Corporation, where he continues to innovate in the automotive sector. His work has contributed to advancements in engine technology, making vehicles more efficient and environmentally friendly.

Collaborations

Shiraishi has collaborated with notable colleagues such as Shunji Masuda and Hiroyuki Oda. Their combined expertise has fostered a creative environment that encourages the development of cutting-edge automotive technologies.

Conclusion

Toru Shiraishi's contributions to the field of internal combustion engines exemplify the spirit of innovation. His patents reflect a commitment to improving engine performance and efficiency. Through his work at Mazda Motor Corporation, he continues to push the boundaries of automotive technology.