Shoji Ushimura

Title: The Innovations of Shoji Ushimura

Introduction

Shoji Ushimura is a notable inventor based in Yokosuka, Japan. He has made significant contributions to the field of internal combustion engine technology. With a total of 6 patents to his name, Ushimura's work focuses on enhancing engine efficiency and reducing emissions.

Latest Patents

One of Ushimura's latest patents is an exhaust purification apparatus. This apparatus includes a regenerative burner designed to repetitively regenerate a trap element located in the exhaust system of an internal combustion engine. The regenerative burner features a combustion chamber that allows exhaust gas to flow from the engine exhaust conduit to the trap element. Additionally, a hollow member within the combustion chamber defines an evaporation chamber, which has a side wall with flame holes for fluid flow. The evaporation chamber is supplied with an air-fuel mixture through a mixture conduit, promoting fuel evaporation during trap regeneration.

Another significant patent is a fuel injection nozzle for an internal combustion engine. This nozzle consists of a hollow nozzle body and a valve member that is liftably disposed within it. The design allows for fuel to be supplied to an orifice in the nozzle body. The valve member blocks communication between the space and the orifice when in the unlifted position, allowing fuel to enter the orifice as the valve member lifts. The gap between the valve member and nozzle body maintains a constant cross-sectional area, ensuring an increase in the rate of fuel injection as the valve member lifts.

Career Highlights

Shoji Ushimura is currently employed at Nissan Motor Company Limited, where he continues to innovate in automotive technology. His work has contributed to advancements in engine performance and environmental sustainability.

Collaborations

Ushimura has collaborated with notable coworkers, including Toshiaki Tanaka and Motohiro Shinzawa. Their combined expertise has fostered a creative environment that encourages innovative solutions in automotive engineering.

Conclusion

Shoji Ushimura's contributions to the field of internal combustion engines are significant and impactful. His patents reflect a commitment to improving engine efficiency and reducing emissions. Through his work at Nissan Motor Company Limited, Ushimura continues to drive innovation in the automotive industry.