Patents by Inventor Seiichi KUNITOMI

Seiichi KUNITOMI 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).

  • Internal combustion engine
    Patent number: 10358988
    Abstract: An internal combustion engine includes a first intake valve, a second intake valve, an accelerator open degree sensor that detects a load state, and an ECU 26 that controls the valve opening timing of the first and second intake valves and an amount of intake gas introduced to a combustion chamber from the first and second intake valves. When a load of a vehicle increases, the ECU reduces the ratio of the amount of intake gas from, among the two or more intake valves, the second intake valve having a later valve opening timing, whereas when the load decreases, the ECU increases the ratio.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: July 23, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Seiichi Kunitomi, Seiji Yamamoto, Mitsuaki Ohtomo, Hiroshi Miyagawa
  • INTERNAL COMBUSTION ENGINE
    Publication number: 20180274455
    Abstract: An internal combustion engine includes a first intake valve, a second intake valve, an accelerator open degree sensor that detects a load state, and an ECU 26 that controls the valve opening timing of the first and second intake valves and an amount of intake gas introduced to a combustion chamber from the first and second intake valves. When a load of a vehicle increases, the ECU reduces the ratio of the amount of intake gas from, among the two or more intake valves, the second intake valve having a later valve opening timing, whereas when the load decreases, the ECU increases the ratio.
    Type: Application
    Filed: March 19, 2018
    Publication date: September 27, 2018
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Seiichi KUNITOMI, Seiji YAMAMOTO, Mitsuaki OHTOMO, Hiroshi MIYAGAWA