Patents by Inventor Ishii Toshio

Ishii Toshio 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 a waste gate valve of a turbocharger in an internal combustion engine
    Patent number: 4763475
    Abstract: In a supercharger for an internal combustion engine having a waste gate valve, a signal for controlling the opening of the waste gate valve is generated in such a manner that a basic amount thereof is produced on the basis of the opening of a throttle valve and the number of revolutions of the engine and then the basic amount is so corrected that an actual mass flow rate of intake air follows a desired value thereof determined by the opening of the throttle valve and the number of revolutions of the engine at that time. According to this, a temperature sensor exclusively used for the controlling the waste gate can be omitted.
    Type: Grant
    Filed: September 9, 1987
    Date of Patent: August 16, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Ishii Toshio, Yasunori Mouri