Patents by Inventor Yoshitaka Namekawa

Yoshitaka Namekawa 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 direct injection engine
    Patent number: 9611796
    Abstract: A cylinder-injection-engine control apparatus includes a fuel injection controller that executes air purge control for performing fuel injection in an intake stroke if fuel pressure is below a predetermined pressure when an engine starts. When executing the air purge control, the fuel injection controller makes a fuel injection time of an injector longer than when the fuel pressure is higher than or equal to the predetermined pressure. When executing the air purge control, if the amount of fuel in a fuel tank is larger than or equal to a predetermined amount and an integrated value of a fuel injection amount (integrated injection amount) since start of the fuel injection is larger than or equal to a predetermined value, the fuel injection controller stops the air purge control.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: April 4, 2017
    Assignee: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventor: Yoshitaka Namekawa
  • CONTROL APPARATUS FOR DIRECT INJECTION ENGINE
    Publication number: 20160273476
    Abstract: A cylinder-injection-engine control apparatus includes a fuel injection controller that executes air purge control for performing fuel injection in an intake stroke if fuel pressure is below a predetermined pressure when an engine starts. When executing the air purge control, the fuel injection controller makes a fuel injection time of an injector longer than when the fuel pressure is higher than or equal to the predetermined pressure. When executing the air purge control, if the amount of fuel in a fuel tank is larger than or equal to a predetermined amount and an integrated value of a fuel injection amount (integrated injection amount) since start of the fuel injection is larger than or equal to a predetermined value, the fuel injection controller stops the air purge control.
    Type: Application
    Filed: February 11, 2016
    Publication date: September 22, 2016
    Inventor: Yoshitaka Namekawa