Patents by Inventor Honghu JI

Honghu JI 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).

  • Labyrinth sealing device for reducing gas intrusion
    Patent number: 11543034
    Abstract: A labyrinth sealing device for reducing gas intrusion is provided. A sealing bush is provided with a jet hole at the front of a tooth tip gap. The jet hole faces a tip of a corresponding sealing tooth. A gas flow injected by the jet hole suppresses hot gas flowing into the tooth tip gap. The sealing bush is provided with a first intercepting member at the rear of the tooth tip gap, and the sealing tooth is provided with a second intercepting member at the rear of the tooth tip gap. The first intercepting member hinders hot gas flowing against an inner wall of the sealing bush, and the second intercepting member hinders hot gas flowing against the sealing tooth, such that a part of the hot gas flows in a reverse direction and is violently mixed with subsequent hot gas.
    Type: Grant
    Filed: September 27, 2020
    Date of Patent: January 3, 2023
    Assignee: Nanjing University of Aeronautics and Astronautics
    Inventors: Bo Zhang, Yuanxiang Chen, Zhiguo Wang, Honghu Ji
  • LABYRINTH SEALING DEVICE FOR REDUCING GAS INTRUSION
    Publication number: 20220349480
    Abstract: A labyrinth sealing device for reducing gas intrusion is provided. A sealing bush is provided with a jet hole at the front of a tooth tip gap. The jet hole faces a tip of a corresponding sealing tooth. A gas flow injected by the jet hole suppresses hot gas flowing into the tooth tip gap. The sealing bush is provided with a first intercepting member at the rear of the tooth tip gap, and the sealing tooth is provided with a second intercepting member at the rear of the tooth tip gap. The first intercepting member hinders hot gas flowing against an inner wall of the sealing bush, and the second intercepting member hinders hot gas flowing against the sealing tooth, such that a part of the hot gas flows in a reverse direction and is violently mixed with subsequent hot gas.
    Type: Application
    Filed: September 27, 2020
    Publication date: November 3, 2022
    Applicant: Nanjing University of Aeronautics and Astronautics
    Inventors: Bo ZHANG, Yuanxiang CHEN, Zhiguo WANG, Honghu JI