Patents by Inventor Yuuki Muranaka

Yuuki Muranaka 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).

  • Hydraulic servo device and turbocharger
    Patent number: 10677152
    Abstract: A hydraulic servo device includes: a servo piston configured to move in an axial direction with respect to a device main body; and a stroke sensor configured to detect an amount of movement of the servo piston with respect to the device main body. The hydraulic servo device is configured to change a supply flow rate of exhaust gas to a turbine of a turbocharger by moving the servo piston according to applied hydraulic pressure. A cooling water channel through which cooling water is to be supplied is provided at a part between the turbocharger and the stroke sensor.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: June 9, 2020
    Assignee: KOMATSU LTD.
    Inventors: Tetsuo Orita, Yuuki Muranaka, Shigemori Suzuki
  • HYDRAULIC SERVO DEVICE AND TURBOCHARGER
    Publication number: 20180016969
    Abstract: A hydraulic servo device includes: a servo piston configured to move in an axial direction with respect to a device main body; and a stroke sensor configured to detect an amount of movement of the servo piston with respect to the device main body. The hydraulic servo device is configured to change a supply flow rate of exhaust gas to a turbine of a turbocharger by moving the servo piston according to applied hydraulic pressure. A cooling water channel through which cooling water is to be supplied is provided at a part between the turbocharger and the stroke sensor.
    Type: Application
    Filed: July 14, 2016
    Publication date: January 18, 2018
    Inventors: Tetsuo Orita, Yuuki Muranaka, Shigemori Suzuki