Masanobu Tamura

Title: Masanobu Tamura: Innovator in Fuel Injection Technology

Introduction

Masanobu Tamura is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of fuel injection technology, holding a total of 2 patents. His work focuses on enhancing the efficiency and performance of internal combustion engines.

Latest Patents

One of his latest patents is the "Double air-fuel ratio sensor system having divided-skip function." This innovative system includes two air-fuel ratio sensors positioned upstream and downstream of a catalyst converter in an exhaust gas passage. The system calculates a skip amount based on the output of the downstream-side air-fuel ratio sensor. It performs a skip operation on the air-fuel ratio correction amount when the output of the upstream-side sensor switches between rich and lean sides. If the skip amount exceeds a predetermined value, it divides the skip amount into multiple amounts, allowing for several skip operations on the air-fuel ratio correction.

Another significant patent is the "Fuel injection control system for internal combustion engine." This system features a cold start injection valve located inside the intake pipe, which performs fuel injection during cold starts. It includes a switch to control the energization of the cold start injection valve, a starter drive state detector to determine if the starter is active, and a clock to monitor the time elapsed since the starter's activation. The start controller designates starting fuel injection based on the elapsed time, ensuring optimal performance during engine start-up.

Career Highlights

Masanobu Tamura works at Toyota Jidosha Kabushiki Kaisha, a leading automotive manufacturer known for its commitment to innovation and quality. His contributions to fuel injection technology have played a crucial role in improving engine performance and efficiency.

Collaborations

Throughout his career, Tamura has collaborated with talented individuals such as Hiroshi Takahashi and Kunihiko Sato. These collaborations have fostered an environment of innovation and creativity, leading to advancements in automotive technology.

Conclusion

Masanobu Tamura is a distinguished inventor whose work in fuel injection technology has made a significant impact on the automotive industry. His innovative patents demonstrate his commitment to enhancing engine performance and efficiency.