Patents by Inventor Hirotoshi Abo

Hirotoshi Abo 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).

  • Method of center guide pin, manufacturing method of center guide pin, and assembling method of rotary machine
    Patent number: 11873720
    Abstract: A design method of a center guide pin includes a step of setting a virtual center axis of a casing, a step of acquiring a center position of the center guide pin in a horizontal direction, a step of acquiring, as a first offset amount, an offset amount of the center position of the center guide pin from the virtual center axis of the casing in the horizontal direction, a step of setting a virtual center axis of a diaphragm, a step of acquiring a center position of a groove portion in the horizontal direction, a step of acquiring, as a second offset amount, an offset amount of the center position of the groove portion from the virtual center axis of the diaphragm in the horizontal direction, and a step of designing the center guide pin based on the first offset amount and the second offset amount.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: January 16, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Yuichi Sasaki, Yasuhiko Kawamura, Hirotoshi Abo, Kenichi Nishiyama
  • DESIGN METHOD OF CENTER GUIDE PIN, MANUFACTURING METHOD OF CENTER GUIDE PIN, AND ASSEMBLING METHOD OF ROTARY MACHINE
    Publication number: 20220403750
    Abstract: A design method of a center guide pin includes a step of setting a virtual center axis of a casing, a step of acquiring a center position of the center guide pin in a horizontal direction, a step of acquiring, as a first offset amount, an offset amount of the center position of the center guide pin from the virtual center axis of the casing in the horizontal direction, a step of setting a virtual center axis of a diaphragm, a step of acquiring a center position of a groove portion in the horizontal direction, a step of acquiring, as a second offset amount, an offset amount of the center position of the groove portion from the virtual center axis of the diaphragm in the horizontal direction, and a step of designing the center guide pin based on the first offset amount and the second offset amount.
    Type: Application
    Filed: June 2, 2022
    Publication date: December 22, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Yuichi Sasaki, Yasuhiko Kawamura, Hirotoshi Abo, Kenichi Nishiyama