Masao Sawamura

Title: Masao Sawamura: Innovator in Injector Technology and Exhaust Gas Cleaning

Introduction

Masao Sawamura is a notable inventor based in Okazaki, Japan. He has made significant contributions to the fields of injector technology and exhaust gas cleaning systems. With a total of 3 patents to his name, Sawamura's work has had a considerable impact on automotive engineering.

Latest Patents

One of Sawamura's latest patents is an innovative injector design. This injector features a nozzle hole, a needle, an actuator, and a piston that moves axially based on the actuator's extension or contraction. The design includes an outer sleeve that holds the piston and defines a pressure chamber, which expands or shrinks according to the piston’s displacement. When the fuel pressure in the chamber increases, the needle opens the nozzle hole, allowing for efficient fuel delivery. Additionally, the injector incorporates an inner sleeve and an urging device that adjusts the urging force based on the piston’s movement, enhancing its functionality.

Another significant patent is an exhaust gas cleaning apparatus designed for diesel engines. This apparatus includes a particulate collector that captures particulates from exhaust gases. It is strategically placed within the exhaust pipe, and damages to the collector are detected by measuring the pressure difference between its inlet and outlet. To ensure accurate detection, the exhaust gas volume is increased by raising the exhaust gas temperature through controlled fuel injection. If the pressure difference falls below a predetermined threshold, it indicates potential damage to the collector.

Career Highlights

Throughout his career, Masao Sawamura has worked with prominent companies such as Denso Corporation and Nippon Soken, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in automotive technology.

Collaborations

Sawamura has collaborated with notable colleagues, including Takeshi Mizobuchi and Kimitaka Saito. Their combined expertise has contributed to the advancement of technologies in their respective fields.

Conclusion

Masao Sawamura's contributions to injector technology and exhaust gas cleaning systems highlight his innovative spirit and dedication to improving automotive engineering. His patents reflect a commitment to enhancing efficiency and performance in the automotive industry.