Patents by Inventor Hayato KUNISHI

Hayato KUNISHI 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).

  • Multistage centrifugal fluid machine
    Patent number: 11346364
    Abstract: There is provided a multistage centrifugal fluid machine capable of improving efficiency of an operation for assembling an inner casing to a high pressure side head flange. The multistage centrifugal fluid machine 100 includes a rotor 3 provided with a plurality of impellers (41 to 81) in an axial direction, a cylindrical outer casing 2, and an inner bundle 1 that is fitted with the outer casing 2 to form a flow passage for the working fluid. The inner bundle 1 includes a high pressure side head flange 11, a low pressure side head flange 12, and an inner casing 5 disposed between the high pressure side head flange 11 and the low pressure side head flange 12. The high pressure side head flange 11 and the inner casing 5 are fastened with a first bolt 142 via an elastic body 144.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: May 31, 2022
    Assignee: Hitachi Industrial Products, Ltd.
    Inventors: Hayato Kunishi, Tomohiro Naruse, Takeshi Kazama, Kazuo Takeda, Hiroaki Yoshimura
  • Multistage Centrifugal Fluid Machine
    Publication number: 20200271126
    Abstract: There is provided a multistage centrifugal fluid machine capable of improving efficiency of an operation for assembling an inner casing to a high pressure side head flange. The multistage centrifugal fluid machine 100 includes a rotor 3 provided with a plurality of impellers (41 to 81) in an axial direction, a cylindrical outer casing 2, and an inner bundle 1 that is fitted with the outer casing 2 to form a flow passage for the working fluid. The inner bundle 1 includes a high pressure side head flange 11, a low pressure side head flange 12, and an inner casing 5 disposed between the high pressure side head flange 11 and the low pressure side head flange 12. The high pressure side head flange 11 and the inner casing 5 are fastened with a first bolt 142 via an elastic body 144.
    Type: Application
    Filed: March 5, 2018
    Publication date: August 27, 2020
    Inventors: Hayato KUNISHI, Tomohiro NARUSE, Takeshi KAZAMA, Kazuo TAKEDA, Hiroaki YOSHIMURA