Patents by Inventor Bichuan LIU

Bichuan LIU 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).

  • Thrust gas bearing, centrifugal compressor equipped with same, and refrigeration apparatus equipped with same
    Patent number: 11773907
    Abstract: A thrust gas bearing includes a collar portion fixed to a shaft portion, a first base part facing one axial end surface of the collar portion, a first gas film forming part formed between the collar portion and first base part, a second base part facing an other axial end surface of the collar portion, a second gas film forming part formed between the collar portion and second base part, and a cooling flow path to carry a fluid flow. The cooling flow path includes a first flow path formed on one axial end side of the first base part and extending from an axial center toward an outer periphery, and a second flow path formed on an other axial end side of the second base part and extending from an outer periphery toward an axial center. The second flow path is located downstream of the first flow path.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: October 3, 2023
    Assignee: Daikin Industries, Ltd.
    Inventors: Bichuan Liu, Kouichi Tanaka, Kousuke Nishimura
  • THRUST GAS BEARING, CENTRIFUGAL COMPRESSOR EQUIPPED WITH SAME, AND REFRIGERATION APPARATUS EQUIPPED WITH SAME
    Publication number: 20230014246
    Abstract: A thrust gas bearing includes a collar portion fixed to a shaft portion, a first base part facing one axial end surface of the collar portion, a first gas film forming part formed between the collar portion and first base part, a second base part facing an other axial end surface of the collar portion, a second gas film forming part formed between the collar portion and second base part, and a cooling flow path to carry a fluid flow. The cooling flow path includes a first flow path formed on one axial end side of the first base part and extending from an axial center toward an outer periphery, and a second flow path formed on an other axial end side of the second base part and extending from an outer periphery toward an axial center. The second to flow path is located downstream of the first flow path.
    Type: Application
    Filed: September 28, 2022
    Publication date: January 19, 2023
    Inventors: Bichuan LIU, Kouichi TANAKA, Kousuke NISHIMURA