Location History:
- Shizuoka, JP (1987)
- Hamamatsu, JP (1988)
Company Filing History:
Years Active: 1987-1988
Title: Innovations by Hiroshi Tomita
Introduction
Hiroshi Tomita is a notable inventor based in Hamamatsu, Japan. He has made significant contributions to the field of marine propulsion and internal combustion engines. With a total of three patents to his name, Tomita's work focuses on enhancing engine performance and fuel efficiency.
Latest Patents
One of Tomita's latest patents is a two-cycle motor featuring a fuel injection system specifically designed for marine propulsions. This innovative arrangement controls a two-cycle marine engine by reducing the firing frequency of the cylinders during low-speed operation. This improvement enhances fuel economy and engine performance by optimizing scavenging while maintaining uniform firing intervals between the cylinders. The invention is applicable to various multiple-cylinder engines and can be utilized with both spark-ignited and diesel engines, as the ignition system remains unaffected.
Another significant patent is related to an internal combustion engine, which presents several embodiments of combustion chamber configurations for use in outboard motors. Each configuration includes a main open volume where combustion begins, into which fuel is injected by a nozzle. Additionally, an energy cell, made from ceramic material, is designed to receive some of the fuel and create combustion at the end of the cycle. This process generates a pressure increase that discharges a hot charge into the main combustion volume, completing the combustion process. Both two and four-cycle applications are disclosed in this patent.
Career Highlights
Hiroshi Tomita is associated with Sanshin Kogyo Kabushiki Kaisha, where he continues to innovate in the field of engine technology. His work has been instrumental in advancing the efficiency and performance of marine engines.
Collaborations
Tomita has collaborated with notable coworkers, including Hiroaki Fujimoto and Tomohiro Kanamaru, contributing to the development of innovative technologies in their field.
Conclusion
Hiroshi Tomita's contributions to engine technology, particularly in marine propulsion and internal combustion engines, highlight his innovative spirit and dedication to improving fuel efficiency and performance. His patents reflect a commitment to advancing engineering solutions in the automotive industry.