Masanori Fujiwara

Title: Masanori Fujiwara: Innovator in Diesel Engine Technology

Introduction

Masanori Fujiwara is a prominent inventor based in Sakai, Japan. He has made significant contributions to the field of diesel engine technology, holding a total of 5 patents. His work focuses on improving exhaust treatment devices, which are crucial for enhancing engine efficiency and reducing emissions.

Latest Patents

One of Fujiwara's latest patents is an exhaust treatment device for diesel engines. This innovative device is designed to accurately estimate the amount of ash deposition on a Diesel Particulate Filter (DPF) after the completion of regenerating treatment. The ash deposition estimation device utilizes data regarding differential pressure and exhaust flow rate, which is stored in a memory device over a specific period. This period ranges from the end of the regenerating treatment to a predetermined duration before the end of regeneration. Additionally, an electronic control device is integrated to trigger an alarm when the estimated ash deposition reaches a predetermined value.

Another notable invention by Fujiwara involves an engine that promotes DPF regeneration processing. This engine performs catalyst activation processing followed by DPF regeneration processing under controlled conditions. During catalyst activation, the target temperature of the exhaust at the catalyst exit is set within a specific temperature range, while the exhaust throttle device's opening degree is adjusted accordingly. In the DPF regeneration processing, the target temperature is set to a higher range, and unburned fuel is introduced into the exhaust to facilitate the regeneration process.

Career Highlights

Fujiwara is currently employed at Kubota Corporation, where he continues to innovate and develop advanced technologies for diesel engines. His expertise in exhaust treatment devices has positioned him as a key figure in the industry.

Collaborations

Throughout his career, Fujiwara has collaborated with notable colleagues, including Katsushi Inoue and Yasuo Fujii. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

Masanori Fujiwara is a distinguished inventor whose work in diesel engine technology has led to significant advancements in exhaust treatment devices. His innovative solutions are essential for improving engine performance and reducing environmental impact.