Patents by Inventor Yoshihito Sakurai

Yoshihito Sakurai 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).

  • Fuel gas feeding system
    Patent number: 6427670
    Abstract: A first cutoff valve 24 and a second cutoff valve 41 are closed in a state in which an internal combustion engine 1 is stopped, and a reducing amount of a pressure P0 in a high pressure passageway 11 after the passage of a predetermined decision time T0 and a reducing amount of a pressure P2 in a low pressure passageway 12 after the passage of a predetermined decision time T2 are measured. When the reducing amount of the first pressure P0 is equal to or larger than a predetermined reducing amount &Dgr;P0, it is decided that a leakage is generated in the high pressure passageway 11. When the reducing amount of the second pressure P2 is equal to or larger than a predetermined reducing amount &Dgr;P2, it is decided that a leakage is generated in the low pressure passageway 12.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: August 6, 2002
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiroyuki Goto, Shusuke Akazaki, Hideharu Yamazaki, Yoshihito Sakurai
  • Fuel gas feeding system
    Publication number: 20010032628
    Abstract: A first cutoff valve 24 and a second cutoff valve 41 are closed in a state in which an internal combustion engine 1 is stopped, and a reducing amount of a pressure P0 in a high pressure passageway 11 after the passage of a predetermined decision time T0 and a reducing amount of a pressure P2 in a low pressure passageway 12 after the passage of a predetermined decision time T2 are measured. When the reducing amount of the first pressure P0 is equal to or larger than a predetermined reducing amount &Dgr;P0, it is decided that a leakage is generated in the high pressure passageway 11. When the reducing amount of the second pressure P2 is equal to or larger than a predetermined reducing amount &Dgr;P2, it is decided that a leakage is generated in the low pressure passageway 12.
    Type: Application
    Filed: April 20, 2001
    Publication date: October 25, 2001
    Applicant: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiroyuki Goto, Shusuke Akazaki, Hideharu Yamazaki, Yoshihito Sakurai