Masaharu Shimoji

Title: Masaharu Shimoji: Innovator in Engine Technology

Introduction

Masaharu Shimoji, an accomplished inventor based in Hiroshima, Japan, has made significant contributions to the field of engine technology. With four patents to his name, Shimoji's innovative designs focus on enhancing the efficiency and functionality of four-cycle and rotary piston engines. His work stands as a testament to his dedication to advancing automotive engineering.

Latest Patents

Shimoji's latest patents illustrate his engineering prowess and creativity. One notable invention is a **Four-cycle engine**, which features a unique design where a fuel-air-oil mixture is compressed in a crankcase chamber. This mixture is then directed through a pathway to the combustion chamber, incorporating an actuating mechanism for the fuel intake valve. The pathway's volume is strategically restricted, optimized to a range of two to four times the piston displacement, illustrating his innovative approach to engine design.

Another significant patent is for a **Fuel supply means for rotary piston engines**. In this design, the rotary piston engine includes a first intake port formed in the rotor housing, alongside one or more additional intake ports in the rotor and side housings. The first intake port provides a relatively rich air-fuel mixture, with a mixing ratio of 2 to 6, while the second intake ports offer either air or a lean mixture, ensuring that the total air-fuel ratio remains within a range of 15 to 20. This innovation showcases Shimoji's commitment to enhancing engine performance.

Career Highlights

Throughout his career, Masaharu Shimoji has collaborated with prominent companies, including Toyo Kogyo Co., Ltd. and Shindaiwa Kogyo Co., Ltd. His experience in these organizations has greatly influenced his inventiveness and provided him with a platform to refine his designs and technological concepts.

Collaborations

In addition to his affiliated companies, Shimoji has collaborated with skilled professionals, including Haruhiko Satow and Atsumichi Yamasaki. These partnerships have fostered a creative environment that has enabled Shimoji to push the boundaries of engine technology further.

Conclusion

Masaharu Shimoji's work exemplifies the spirit of innovation in the automotive industry. With his significant patents and collaborative efforts, he continues to pave the way for advancements in engine performance and efficiency. His dedication to his craft not only reflects in his patents but also inspires future generations of inventors and engineers.