Mitsujiro Mochizuka

Title: Mitsujiro Mochizuka: Innovator in Two-Stroke Engine Technology

Introduction

Mitsujiro Mochizuka is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of internal combustion engines, particularly focusing on two-stroke engine technology. With a total of 5 patents to his name, Mochizuka's innovations aim to enhance engine efficiency and reduce harmful emissions.

Latest Patents

Mochizuka's latest patents include a groundbreaking design for a two-stroke internal combustion engine. This design features a unique arrangement of scavenging ports, where the first scavenging ports are positioned closer to the exhaust port than the second scavenging ports. During each scavenging stroke, the second scavenging ports open earlier, introducing fuel-free air into the combustion chamber. Subsequently, the first scavenging ports open later, allowing an air-fuel mixture pre-compressed in the crank chamber to enter the same combustion chamber. This innovative approach significantly reduces harmful substances in the exhaust gas.

Another notable patent by Mochizuka describes a two-stroke internal combustion engine that emits exhaust gases with reduced noxious components, such as hydrocarbons (HC). This design incorporates a crank chamber located below the piston and a combustion actuating chamber above it. The engine features either one pair or two pairs of scavenging passageways that communicate between these chambers, forming a Schnürle-type scavenging system. Each passageway is strategically throttled near its scavenging inlet port to optimize performance.

Career Highlights

Mochizuka has dedicated his career to advancing engine technology, particularly in the realm of two-stroke engines. His work has been instrumental in developing engines that are not only more efficient but also environmentally friendly. His innovative designs have garnered attention in the automotive and engineering sectors.

Collaborations

Throughout his career, Mochizuka has collaborated with notable colleagues, including Takashi Fukuoka and Shiro Yamaguchi. These partnerships have fostered a creative environment that has led to the development of cutting-edge technologies in engine design.

Conclusion

Mitsujiro Mochizuka stands out as a key figure in the innovation of two-stroke internal combustion engines. His patents reflect a commitment to improving engine performance while minimizing environmental impact. His contributions continue to influence the future of engine technology.