1
Shimura Takahiro, Iwaki Hidefumi, Banse Masashi: Butterfly valve device. Hitachi, July 23, 2008: EP1947312-A1 (2 worldwide citation)

An object of the present invention is to provide a butterfly valve device made of resin, the butterfly valve device being little susceptible the secular change in gas flow (in particular, the minimum flow) or random changes. According to the present invention, when a butterfly valve 2 is located at ...


2
Hori Toshio, Iwaki Hidefumi, Nonomura Shigeyuki, Fujiwara Keisuke, Yano Hirofumi: System and method for controlling engine equipped with electromagnetically operated engine valve. Nissan Motor, June 27, 2001: EP1111202-A2 (2 worldwide citation)

An engine control system for an engine system with electromagnetically operated intake and exhaust valves has a control unit. The control unit is arranged to decide whether each of the intake and exhaust valves is put in an abnormal condition, to close a normal valve of the intake and exhaust valves ...


3
Okamoto Takashi, Iwaki Hidefumi, Yoshida Yoshiyuki: Controller for internal combustion engine. Hitachi, April 9, 2003: JP2003-106208 (2 worldwide citation)

PROBLEM TO BE SOLVED: To provide a controller for internal combustion engine which precisely controls the fuel pressure and the amount of fuel injection from a fuel injection valve by focusing attention to the amount of fuel injection which affects the magnitude of an amplitude of the pulsation in a ...


4
Ichihara Takanobu, Katogi Kozo, Sukegawa Yoshihiro, Yamaoka Shiro, Iwaki Hidefumi, Igarashi Shinya, Fukatsu Katsuaki, Kadohiro Takashi, Tokuyasu Noboru: Exhaust gas recirculation device and control method of internal combustion engine. Hitachi, November 24, 2006: JP2006-316706 (2 worldwide citation)

PROBLEM TO BE SOLVED: To minimize an emission of NOx and soot in exhaust gas even when the operation state of an internal combustion engine is varied.SOLUTION: In an exhaust gas recirculation device equipped with an EGR valve and an exhaust oxygen concentration sensor, an EGR gas flow rate sensor co ...


5
Shimura Takahiro, Tomose Masashi, Iwaki Hidefumi: Butterfly valve device. Hitachi, July 31, 2008: JP2008-175064 (2 worldwide citation)

PROBLEM TO BE SOLVED: To provide a butterfly valve device made of resin being little susceptible to secular change in gas flow, in particular, the minimum flow or to random changes.SOLUTION: When a valve element is located at a full-closed position facing a peripheral lower surface of a semicircular ...


6
Sukegawa Yoshihiro, Yamaoka Shiro, Tokuyasu Noboru, Igarashi Shinya, Fukatsu Katsuaki, Kadohiro Takashi, Iwaki Hidefumi, Ichihara Takanobu: Detection device of egr gas flow rate and engine control method. Hitachi, November 24, 2006: JP2006-316709 (2 worldwide citation)

PROBLEM TO BE SOLVED: To prevent deterioration of the detection accuracy of a flow sensor caused by dirt and breakage of the sensor due to overheat by a flow sensor provided upstream of a throttle and by providing a flow sensor between a junction of EGR gas and fresh air and an intake pipe collector ...


7
Iwaki Hidefumi, Ichihara Takanobu, Sukegawa Yoshihiro, Yamaoka Shiro, Tokuyasu Noboru, Igarashi Shinya, Fukatsu Katsuaki, Kadohiro Takashi: Diagnostic device for egr system. Hitachi, November 24, 2006: JP2006-316714 (2 worldwide citation)

PROBLEM TO BE SOLVED: To perform diagnosis with high accuracy without being influenced by an engine operating condition and the condition of the upstream of an intake passage, in a diagnostic device equipped with a flow sensor for detecting an EGR flow rate in EGR piping, and detecting the failure o ...


8
Yamaoka Shiro, Sukegawa Yoshihiro, Tokuyasu Noboru, Igarashi Shinya, Fukatsu Katsuaki, Kadohiro Takashi, Iwaki Hidefumi, Ichihara Takanobu: Control apparatus of engine. Hitachi, November 29, 2006: EP1726810-A1 (1 worldwide citation)

The present invention relates to an engine (19) having a premixed combustion mode, an EGR flow rate estimating precision is deteriorated at a transient time, and a torque fluctuation and an exhaust gas deterioration are caused. In an engine control apparatus (8) having a premixed combustion mode (10 ...


9
Hori Toshio, Iwaki Hidefumi, Nonomura Shigeyuki, Fujiwara Keisuke, Yano Hiroshi: Control device for engine system provided with solenoid intake/exhaust valve. Hitachi, Nissan Motor, June 26, 2001: JP2001-173471 (1 worldwide citation)

PROBLEM TO BE SOLVED: To suppress degradation of components of an engine even if an abnormal condition occurs in a solenoid intake/exhaust valve.SOLUTION: This control device for an engine system provided with the solenoid intake/exhaust valve comprises; a valve abnormality detecting portion 61 for ...


10
Yoshida Yoshiyuki, Iwaki Hidefumi: Fuel injection control device for internal combustion engine. Hitachi, September 7, 2001: JP2001-241348 (1 worldwide citation)

PROBLEM TO BE SOLVED: To provide a fuel injection control device suitably correcting dispersion in an injector injecting amount among cylinders, and achieving high-precision air-fuel ratio control.SOLUTION: This fuel injection control device for an engine is provided with a by-cylinder rich/lean air ...