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Title: Hidenobu Nakamura: Innovator in EGR-Gas Flow Rate Estimation
Introduction
Hidenobu Nakamura is a notable inventor based in Chita, Japan. He has made significant contributions to the field of internal combustion engines, particularly in the estimation of EGR (Exhaust Gas Recirculation) gas flow rates. His innovative approach has implications for improving engine efficiency and reducing emissions.
Latest Patents
Nakamura holds a patent for an EGR-gas flow rate estimation apparatus designed for internal combustion engines. This apparatus includes an exhaust circulation pipe that connects the exhaust passage and the intake passage of the engine. It features an EGR control valve that is interposed in the exhaust circulation pipe and has a throttle portion. The apparatus estimates a provisional EGR gas flow rate using a general formula, which incorporates various parameters such as exhaust pressure, intake pressure, and the effective opening area of the throttle portion. The flow rate of EGR gas flowing into the intake passage is then estimated by multiplying the provisional EGR gas flow rate by a correction value corresponding to differential pressure.
Career Highlights
Throughout his career, Hidenobu Nakamura has worked with prominent companies in the automotive industry. He has been associated with Toyota Motor Corporation and Denso Corporation, where he has contributed to advancements in engine technology. His work has been instrumental in enhancing the performance and efficiency of internal combustion engines.
Collaborations
Nakamura has collaborated with various professionals in his field, including his coworker Akio Matsunaga. Their joint efforts have led to innovative solutions in engine technology and have furthered the understanding of EGR systems.
Conclusion
Hidenobu Nakamura's contributions to the field of internal combustion engines, particularly through his patent for an EGR-gas flow rate estimation apparatus, highlight his role as an innovator. His work continues to influence advancements in engine efficiency and emissions reduction.