Patents by Inventor Keiichi Meguro

Keiichi Meguro 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).

  • Patent number: 11220909
    Abstract: A turbine rotor blade row includes: a plurality of turbine rotor blades disposed along a circumferential direction of a hub. An inter-blade flow channel has a first cross-sectional shape perpendicular to a radial direction of the hub at a first position in the radial direction, and a second cross-sectional shape perpendicular to the radial direction of the hub at a second position farther from the hub than the first position in the radial direction. The first cross-sectional shape has a throat portion between an inlet and an outlet of the inter-blade flow channel in an axial direction of the hub.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: January 11, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Ryo Takata, Keiichi Meguro
  • Publication number: 20210363996
    Abstract: A liquid pressurizing apparatus, comprises a tank provided on a device installation surface for storing liquid so that a fluid level is located above the device installation surface; and a vertical pump including a suction port connected to the tank, multi-stage impellers arranged in a vertical direction, and a discharge port for discharging the liquid passing through the multi-stage impellers. The multi-stage impellers include a first stage impeller positioned at the lowest part of the multi-stage impellers and being configured such that the liquid from the suction port flows into the first stage impeller. The first stage impeller is disposed below the device installation surface.
    Type: Application
    Filed: November 1, 2017
    Publication date: November 25, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hiroshi Funakoshi, Norio Mitsui, Keiichi Meguro, Yasushi Ueda, Akio Maeda, Shinji Ogino
  • Patent number: 10859092
    Abstract: An impeller includes a disk, a long blade that is disposed at an interval in a circumferential direction on a disk surface on a first side in an axial direction of the disk, and that reaches an outer peripheral edge of the disk, and a short blade that is disposed between the long blades adjacent to each other on the disk surface, and that reaches the outer peripheral edge. A circumferential length of the short blade gradually increases as the short blade faces outward in the radial direction, and a circumferential length of the long blade in the outer peripheral edge is smaller than the circumferential length of the short blade in the outer peripheral edge.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: December 8, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takeshi Sano, Masamichi Iino, Keiichi Meguro
  • Publication number: 20190211837
    Abstract: An impeller includes a disk, a long blade that is disposed at an interval in a circumferential direction on a disk surface on a first side in an axial direction of the disk, and that reaches an outer peripheral edge of the disk, and a short blade that is disposed between the long blades adjacent to each other on the disk surface, and that reaches the outer peripheral edge. A circumferential length of the short blade gradually increases as the short blade faces outward in the radial direction, and a circumferential length of the long blade in the outer peripheral edge is smaller than the circumferential length of the short blade in the outer peripheral edge.
    Type: Application
    Filed: October 20, 2017
    Publication date: July 11, 2019
    Inventors: Takeshi SANO, Masamichi IINO, Keiichi MEGURO
  • Publication number: 20170204728
    Abstract: A turbine rotor blade row includes: a plurality of turbine rotor blades disposed along a circumferential direction of a hub. An inter-blade flow channel has a first cross-sectional shape perpendicular to a radial direction of the hub at a first position in the radial direction, and a second cross-sectional shape perpendicular to the radial direction of the hub at a second position farther from the hub than the first position in the radial direction. The first cross-sectional shape has a throat portion between an inlet and an outlet of the inter-blade flow channel in an axial direction of the hub. An expression A1/B1>A2/B2 is satisfied, where A1 and A2 are flow-channel widths of the first cross-sectional shape at the outlet of the inter-blade flow channel and at the throat portion, respectively, and A2 and B2 are flow-channel widths of the second cross-sectional shape at the outlet of the inter-blade flow channel and at the same position as the throat portion in the axial direction of the hub, respectively.
    Type: Application
    Filed: February 10, 2015
    Publication date: July 20, 2017
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Ryo Takata, Keiichi Meguro
  • Patent number: 8336311
    Abstract: A low-pressure-vapor-recovery turbine generator that effectively recovers low-pressure steam emitted from a high-pressure-side steam turbine to generate electric power is provided. A low-pressure-vapor-recovery turbine that recovers low-pressure steam emitted from a high-pressure-side steam turbine and is rotationally driven, a generator that generates electric power with a rotational output of the low-pressure-vapor-recovery turbine, and a condenser that condenses into liquid exhaust steam from the low-pressure-vapor-recovery turbine are provided. The low-pressure-vapor-recovery turbine, generator, and condenser are installed in a portable outer casing that can be transported.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: December 25, 2012
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Shinji Ogino, Keiichi Meguro, Kohei Higaki, Akira Miki
  • Publication number: 20100050638
    Abstract: A low-pressure-vapor-recovery turbine generator that effectively recovers low-pressure steam emitted from a high-pressure-side steam turbine to generate electric power is provided. A low-pressure-vapor-recovery turbine that recovers low-pressure steam emitted from a high-pressure-side steam turbine and is rotationally driven, a generator that generates electric power with a rotational output of the low-pressure-vapor-recovery turbine, and a condenser that condenses into liquid exhaust steam from the low-pressure-vapor-recovery turbine are provided. The low-pressure-vapor-recovery turbine, generator, and condenser are installed in a portable outer casing that can be transported.
    Type: Application
    Filed: December 28, 2007
    Publication date: March 4, 2010
    Inventors: Shinji Ogino, Keiichi Meguro, Kohei Higaki, Akira Miki