Patents by Inventor Hidenori Usui

Hidenori Usui 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).

  • Control apparatus for dry sump type internal combustion engine
    Patent number: 7174876
    Abstract: A feed pump 28 that is driven by the axial torque of an internal combustion engine 10 is installed. An electric scavenge pump 36 is installed. A base value for the ratio (S/F ratio) between the discharge volume of the scavenge pump 36 and feed pump 28 is calculated. The base value is corrected so that the S/F ratio is lower in a region where the engine speed is high than in a region where the engine speed is low. The discharge volume of the scavenge pump 36 is controlled in accordance with the S/F ratio that is corrected in the above manner.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: February 13, 2007
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takao Suzuki, Hidenori Usui
  • Control apparatus for dry sump type internal combustion engine
    Publication number: 20060102429
    Abstract: A feed pump 28 that is driven by the axial torque of an internal combustion engine 10 is installed. An electric scavenge pump 36 is installed. A base value for the ratio (S/F ratio) between the discharge volume of the scavenge pump 36 and feed pump 28 is calculated. The base value is corrected so that the S/F ratio is lower in a region where the engine speed is high than in a region where the engine speed is low. The discharge volume of the scavenge pump 36 is controlled in accordance with the S/F ratio that is corrected in the above manner.
    Type: Application
    Filed: October 27, 2005
    Publication date: May 18, 2006
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Takao Suzuki, Hidenori Usui