Seiichiro Kumagai

Title: Innovations by Seiichiro Kumagai

Introduction

Seiichiro Kumagai is a notable inventor based in Koishikawa, Japan. He has made significant contributions to the field of ignition technology, particularly in the development of methods and apparatuses for igniting lean air-fuel mixtures. With a total of two patents to his name, Kumagai's work reflects a deep understanding of combustion processes and electrostatic fields.

Latest Patents

Kumagai's latest patents include a "Lean air-fuel mixture attraction method" and an "Attraction electrode plug." The improved apparatus for igniting a lean air-fuel mixture features a spark plug with a straight longitudinally extending main electrode and a side electrode, which is electrically insulated from the main electrode. An attraction plug is strategically mounted in the cylinder head, offset to one side of the spark plug. This attraction plug contains a central electrode that is insulated and encased, ensuring that it remains isolated from the combustion chamber atmosphere. The design allows for the establishment of an electrostatic field in the combustion chamber, facilitating the ignition of fuel particles attracted to the vicinity of the spark plug.

Another patent focuses on a method and apparatus for accumulating fuel particles in a combustion chamber. This invention establishes strong electrostatic fields at electrode gaps to gather fuel particles near a spark gap. By maintaining a separate atmosphere in one of the electrode gaps, the electrostatic field's strength can be kept constant, enhancing the ignition process.

Career Highlights

Kumagai is associated with Tokai Trw & Co., Ltd., where he has been able to apply his innovative ideas in practical settings. His work has contributed to advancements in ignition technology, making engines more efficient and environmentally friendly.

Collaborations

Kumagai has collaborated with notable coworkers, including Michio Abe and Naoyuki Maeda. Their combined expertise has likely fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Seiichiro Kumagai's contributions to ignition technology through his patents demonstrate his commitment to improving combustion processes. His innovative methods and apparatuses have the potential to significantly impact the efficiency of engines in the automotive industry.