Masayuki Ohira

Title: Masayuki Ohira: Innovator in Piston Technology

Introduction

Masayuki Ohira is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of piston technology, holding 2 patents that showcase his innovative approach to engineering challenges.

Latest Patents

Ohira's latest patents include a unique design for a piston ring. This invention features an outer circumferential surface with a cut surface that forms a notched portion. The cut surface includes a first surface between the outer circumferential end surface and a bottom portion, and a second surface that is inclined away from the central axis of the piston ring. The angle of inclination of the second surface is between 50° and 85°. Additionally, the axial width of the piston ring is designed to optimize performance, with specific ratios defined for its dimensions.

Another significant patent addresses the design of a cylinder liner and cylinder bore. This invention aims to reduce friction on sliding surfaces and minimize oil consumption. The grooves in the second sliding region, positioned towards the crankcase, have a higher groove area ratio compared to those in the first sliding region near the combustion chamber. This innovative design effectively reduces both friction and oil consumption.

Career Highlights

Throughout his career, Masayuki Ohira has worked with various companies, including TPR Co., Ltd. and IPR Industry Co., Ltd. His experience in these organizations has contributed to his expertise in piston technology and engineering.

Collaborations

Ohira has collaborated with notable coworkers such as Naoki Umeda and Yushi Abe. Their combined efforts have led to advancements in the field of piston design and functionality.

Conclusion

Masayuki Ohira's contributions to piston technology through his innovative patents demonstrate his commitment to engineering excellence. His work continues to influence the industry and improve the performance of piston systems.