Patents by Inventor Shingo Kai

Shingo Kai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Direct injection gasoline engine and method of controlling the direct injection gasoline engine
    Patent number: 9488094
    Abstract: A direct injection engine includes an ignition assistance section applying energy to fuel injected into a cylinder using an injector to assist auto-ignition combustion of the fuel when the engine is within an auto-ignition combustion operation range. A start time of fuel injection is set within a period from a terminal stage of a compression stroke to a compression top dead center. The energy is applied to the fuel injected into the cylinder in a period from start of the fuel injection to an initial stage of an expansion stroke such that a time of a specific crank angle when an increase rate of in-cylinder pressure, which is a ratio of a change in the in-cylinder pressure to a change in a crank angle in motoring the engine, reaches a negative maximum value overlaps a combustion period when a combustion mass percentage of the fuel ranges from 10% to 90%.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: November 8, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Hiroyuki Yamashita, Kazuaki Narahara, Tatsuya Tanaka, Yoshitomo Takahashi, Yusuke Nakao, Takashi Ikai, Hidefumi Fujimoto, Masatoshi Seto, Yoshio Tanita, Kazuo Ichikawa, Shingo Kai, Susumu Masuyama, Hirokazu Nakahashi, Keiji Araki
  • DIRECT INJECTION GASOLINE ENGINE AND METHOD OF CONTROLLING THE DIRECT INJECTION GASOLINE ENGINE
    Publication number: 20140216396
    Abstract: A direct injection engine includes an ignition assistance section applying energy to fuel injected into a cylinder using an injector to assist auto-ignition combustion of the fuel when the engine is within an auto-ignition combustion operation range. A start time of fuel injection is set within a period from a terminal stage of a compression stroke to a compression top dead center. The energy is applied to the fuel injected into the cylinder in a period from start of the fuel injection to an initial stage of an expansion stroke such that a time of a specific crank angle when an increase rate of in-cylinder pressure, which is a ratio of a change in the in-cylinder pressure to a change in a crank angle in motoring the engine, reaches a negative maximum value overlaps a combustion period when a combustion mass percentage of the fuel ranges from 10% to 90%.
    Type: Application
    Filed: August 28, 2012
    Publication date: August 7, 2014
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Hiroyuki Yamashita, Kazuaki Narahara, Tatsuya Tanaka, Yoshitomo Takahashi, Yusuke Nakao, Takashi Ikai, Hidefumi Fujimoto, Masatoshi Seto, Yoshio Tanita, Kazuo Ichikawa, Shingo Kai, Susumu Masuyama, Hirokazu Nakahashi, Keiji Araki