Patents by Inventor Natsuko MOTODA

Natsuko MOTODA 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).

  • Variable nozzle unit and turbocharger
    Patent number: 11047256
    Abstract: A variable nozzle unit includes a variable nozzle vane which is disposed between a hub wall surface and a shroud wall surface and is rotatable around a rotation axis parallel to a rotation axis of a turbine impeller inside a gas flow passage. The variable nozzle vane includes a leading edge, a trailing edge, and an outer vane surface connecting the leading edge and the trailing edge and facing a radial outside of the rotation axis. A concave portion at least in a range of a leading edge side in relation to the rotation axis is formed at the hub wall surface side of the outer vane surface.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: June 29, 2021
    Assignee: IHI Corporation
    Inventor: Natsuko Motoda
  • Variable nozzle unit and turbocharger
    Patent number: 10914190
    Abstract: A variable nozzle unit includes a variable nozzle vane which is disposed between a hub wall surface and a shroud wall surface and is rotatable around a rotation axis parallel to a rotation axis of a turbine impeller inside a gas flow passage. The variable nozzle vane includes a leading edge, a trailing edge, a hub end surface facing a hub wall surface, and a shroud end surface facing a shroud wall surface. The variable nozzle vane is twisted around a twist center located between the trailing edge and the rotation axis so that the hub end surface protrudes to a radial outside of a rotation axis in relation to the shroud end surface at the leading edge side and the hub end surface protrudes to a radial inside of the rotation axis in relation to the shroud end surface at the trailing edge side.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: February 9, 2021
    Assignee: IHI Corporation
    Inventor: Natsuko Motoda
  • VARIABLE NOZZLE UNIT AND TURBOCHARGER
    Publication number: 20190264575
    Abstract: A variable nozzle unit includes a variable nozzle vane which is disposed between a hub wall surface and a shroud wall surface and is rotatable around a rotation axis parallel to a rotation axis of a turbine impeller inside a gas flow passage. The variable nozzle vane includes a leading edge, a trailing edge, and an outer vane surface connecting the leading edge and the trailing edge and facing a radial outside of the rotation axis. A concave portion at least in a range of a leading edge side in relation to the rotation axis is formed at the hub wall surface side of the outer vane surface.
    Type: Application
    Filed: November 6, 2017
    Publication date: August 29, 2019
    Applicant: IHI Corporation
    Inventor: Natsuko MOTODA
  • VARIABLE NOZZLE UNIT AND TURBOCHARGER
    Publication number: 20190249563
    Abstract: A variable nozzle unit includes a variable nozzle vane which is disposed between a hub wall surface and a shroud wall surface and is rotatable around a rotation axis parallel to a rotation axis of a turbine impeller inside a gas flow passage. The variable nozzle vane includes a leading edge, a trailing edge, a hub end surface facing a hub wall surface, and a shroud end surface facing a shroud wall surface. The variable nozzle vane is twisted around a twist center located between the trailing edge and the rotation axis so that the hub end surface protrudes to a radial outside of a rotation axis in relation to the shroud end surface at the leading edge side and the hub end surface protrudes to a radial inside of the rotation axis in relation to the shroud end surface at the trailing edge side.
    Type: Application
    Filed: October 31, 2017
    Publication date: August 15, 2019
    Applicant: IHI Corporation
    Inventor: Natsuko MOTODA