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Noriyuki Maekawa
Researcher at Hitachi
Publications - 40
Citations - 414
Noriyuki Maekawa is an academic researcher from Hitachi. The author has contributed to research in topics: Fuel injection & Internal combustion engine. The author has an hindex of 11, co-authored 38 publications receiving 413 citations.
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Patent
Fuel Injection Valve
Tsuchiya Masahiro,Hirata Tosuke,Yoshio Okamoto,Tohru Ishikawa,Noriyuki Maekawa,Yoshiyuki Tanabe,Atsushi Sekine,Yuzo Kadomukai,Makoto Yamakado,Motoyuki Abe +9 more
TL;DR: In this article, the phase angle of force applied to the primary oscillation system by the secondary oscillator is also staggered from that of the force applied by the SOS, which in turn makes it possible to achieve very accurate fuel-injection control.
Patent
Drive Device for Electromagnetic Fuel Injection Valve
TL;DR: In this paper, a drive device is configured to, during a time interval between an earlier fuel injection and a later fuel injection (second fuel injection), supply an electromagnetic coil with an intermediate current at a voltage with a level of not opening the valve.
Patent
Electromagnetic fuel injection system and internal combustion engine having it mounted
Motoyuki Abe,Yasuhisa Hamada,Toru Ishikawa,Yuzo Kadomukai,Hiromasa Kubo,Noriyuki Maekawa,Toshio Takahata,Makoto Yamakado,博雅 久保,典幸 前川,元幸 安部,山門 誠,泰久 濱田,石川 亨,裕三 門向,敏夫 高畑 +15 more
TL;DR: In this paper, the authors proposed a valve opening control mechanism for an internal combustion engine and an electromagnetic fuel injection system to detect status of the valve opening of a valve element 90 and change the large magnetomotive force in the initial time of the opening into small magnetic force in retaining based on information of valve opening detected.
Patent
Fuel injection device
Ryo Kusakabe,Motoyuki Abe,Yoshihito Yasukawa,Noriyuki Maekawa,Takuya Mayuzumi,Tohru Ishikawa +5 more
TL;DR: In this paper, a method of controlling a fuel injection device that can control a small amount of injection is provided, which includes a valve body that can open and close a fuel passage, a needle that transfers a force with the valve body, and executes valve opening/closing operation, and an electromagnet that includes a coil and a magnetic core provided as a driver for driving the needle.
Patent
Injector driving control apparatus
TL;DR: In this article, an injector driving control apparatus that operates with minimum power consumption while ensuring linearity (proportionality between the current supply duration and fuel injection volume of the injector) in a wide fuel pressure range is presented.