Nao Ogasawara

Title: Nao Ogasawara: Innovator in Fuel Injection Technology

Introduction

Nao Ogasawara is a prominent inventor based in Kariya, Japan. He has made significant contributions to the field of fuel injection technology, holding a total of 2 patents. His work is recognized for its innovative designs and practical applications in automotive engineering.

Latest Patents

Ogasawara's latest patents include a fuel injection device and a supply pump. The fuel injection device features a valve body, a drive portion, a nozzle needle, and a control valve body. The valve body defines a control chamber, a valve chamber, and a low-pressure communication passage. The nozzle needle is displaced due to a fuel pressure variation in the control chamber to open or close an injection port. When the control valve body sits on an upper seat surface, a low-pressure communication passage is closed, fluidly disconnecting the valve chamber from the low-pressure chamber. The control valve body also defines a gap restriction on the upper seat surface, with a flow passage area of a sub-orifice provided to the low-pressure communication passage being smaller than that of the gap restriction.

The supply pump includes a housing, a tappet, a guide groove, and a stopper pin. The housing features a cylindrical sliding wall, while the tappet is designed to be reciprocated along this sliding wall. The guide groove is provided for either the housing or the tappet, with one end of the guide groove including a tapered surface. The stopper pin is fitted into the guide groove to prevent the tappet from rotating relative to the housing. In cases of abnormal displacement of the tappet in an upper direction, the tapered surface engages with the stopper pin.

Career Highlights

Nao Ogasawara is currently employed at Denso Corporation, a leading company in automotive technology. His work at Denso has allowed him to focus on developing advanced fuel injection systems that enhance engine performance and efficiency.

Collaborations

Ogasawara has collaborated with notable coworkers, including Takaharu Sakoh and Katsumi Mori. Their combined expertise has contributed to the successful development of innovative automotive technologies.

Conclusion

Nao Ogasawara is a key figure in the field of fuel injection technology, with a focus on creating efficient and effective solutions for the automotive industry. His contributions through his patents and work at Denso Corporation