Yukihiro Hayasaka

Title: Innovations by Yukihiro Hayasaka

Introduction

Yukihiro Hayasaka is a notable inventor based in Higashimatsuyama, Japan. He has made significant contributions to the field of automotive technology, particularly in the development of fuel injection systems. With a total of six patents to his name, Hayasaka's work focuses on enhancing the efficiency and functionality of diesel engines.

Latest Patents

Among his latest patents is a fuel injection nozzle designed for DME (Dimethyl Ether) fuel. This innovation allows existing diesel engine vehicles that typically run on light oil fuel to operate using DME without the need for a complete engine replacement. This solution is both cost-effective and easy to implement. The design features specific dimensions for the needle valve's tip, including a center diameter of 2.5 mm, a seat diameter of 3.0 mm, and a shaft diameter of 3.25 mm. The ratios of these diameters are carefully calculated to optimize performance. Another significant patent is the DME fuel supply device for diesel engines, which reduces the time required to retrieve remaining DME fuel from the injection system after the engine has stopped. This device utilizes a three-way valve and a two-way valve to facilitate efficient fuel circulation.

Career Highlights

Hayasaka has worked with prominent companies in the automotive sector, including Bosch Automotive Systems Corporation and Bosch Corporation. His experience in these organizations has contributed to his expertise in fuel injection technologies and automotive innovations.

Collaborations

Some of his notable coworkers include Toshifumi Noda and Shinya Nozaki, who have collaborated with him on various projects within the automotive industry.

Conclusion

Yukihiro Hayasaka's contributions to fuel injection technology demonstrate his commitment to innovation in the automotive field. His patents reflect a deep understanding of engineering principles and a desire to improve diesel engine performance.