Heisuke Yamamoto

Title: Heisuke Yamamoto: Innovator in Exhaust Gas Recirculation Technology

Introduction

Heisuke Yamamoto is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of internal combustion engines, particularly in exhaust gas recirculation systems. With a total of 5 patents to his name, Yamamoto's work has had a lasting impact on automotive technology.

Latest Patents

Yamamoto's latest patents include an "Exhaust Gas Recirculation Apparatus for an Internal Combustion Engine." This invention features an exhaust gas recirculation system designed with a back pressure control type. It includes a vacuum line connecting an EGR port with a vacuum-operated flow control valve. Additionally, a modulator valve is incorporated, which has a control chamber that selectively opens to the vacuum line in response to the pressure of recirculated exhaust gas. This innovative design allows for precise control of the vacuum signal level of the flow control valve.

Another significant patent is the "Exhaust Gas Recirculation System." This system is designed for use in internal combustion engines and includes an intake manifold with a riser portion that serves as a heating source for the intake mixture charge. The system features an exhaust gas recirculation passage that runs from the exhaust manifold to the intake system, allowing for the introduction of exhaust gases. A temperature-responsive valve is strategically placed in the intake manifold to detect the temperature of the riser portion, thereby controlling the flow rate of recirculated exhaust gases based on temperature.

Career Highlights

Heisuke Yamamoto has worked with prominent companies in the automotive industry, including Toyota Motor Corporation and Denso Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in exhaust gas recirculation technology.

Collaborations

Throughout his career, Yamamoto has collaborated with notable colleagues such as Noriaki Kawai and Isamu Ota. These partnerships have contributed to the advancement of technology in the automotive sector.

Conclusion

Heisuke Yamamoto's contributions to exhaust gas recirculation technology have established him as a key figure in the automotive industry. His innovative patents and collaborations reflect his commitment to improving internal combustion engine efficiency.