Haruo Shimamura

Title: Haruo Shimamura: Innovator in Internal Combustion Engine Technology

Introduction

Haruo Shimamura is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of internal combustion engine technology, holding a total of 7 patents. His innovative approaches have led to advancements in engine performance and efficiency.

Latest Patents

One of Shimamura's latest patents is an air-fuel ratio control method for an internal combustion engine. This method controls the amount of intake side secondary air based on engine temperature or both engine and intake air temperatures during engine re-starts at high temperatures. This innovation helps avoid enrichment of the intake air-fuel ratio, improving engine-start properties. Additionally, it enhances exhaust gas purification and stabilizes engine speed at idle. Another significant patent is an idling speed control system for internal combustion engines. This system utilizes a vacuum-operated actuator to manage the throttle valve's opening and closing in response to control pressures. An electronic control unit generates control pulse signals based on engine rotational speed, allowing for precise adjustments to idling speed.

Career Highlights

Throughout his career, Haruo Shimamura has worked with prominent companies, including Honda Giken Kogyo Kabushiki Kaisha and Honda Giken Kogyo K.K. His experience in these organizations has contributed to his expertise in engine technology and innovation.

Collaborations

Some of his notable coworkers include Hideo Kobayashi and Masahiko Asakura. Their collaboration has likely fostered a creative environment that encourages technological advancements.

Conclusion

Haruo Shimamura's contributions to internal combustion engine technology through his patents and career achievements highlight his role as a significant innovator in the field. His work continues to influence advancements in engine performance and efficiency.