Patents by Inventor Honghui YU

Honghui YU 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).

  • Check valve for low pressure operating conditions
    Patent number: 12209673
    Abstract: A check valve for low pressure operating conditions includes: a valve cover, a valve body, and an upper diaphragm between the body and the cover. A first pressure cavity is provided on a lower surface of the valve cover and used for accommodating a backward direction medium, a second pressure cavity is machined on an upper surface of the valve body, within which an inflow passage and an outflow passage are provided, an inflow hole is machined from an inner wall of the inflow passage to a bottom face of the second pressure cavity, and a medium enters into the second pressure cavity from the inflow passage via the inflow hole, and applies upward pressure on the upper diaphragm. A backflow channel in communication with the first pressure cavity is machined on a side wall of the outflow passage.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: January 28, 2025
    Assignee: BEIJING AEROSPACE PETROCHEMICAL TECHNOLOGY AND EQUIPMENT ENGINEERING CORPORATION LIMITED
    Inventors: Xiaoxia Wei, Xianyu Bao, Na Li, Yixiao Wang, Shangang Guo, Ling Bian, Honghui Yu, Peng Shuai, Xiaofeng Li, Xuebin Wang, Dianjing Chen, Xuli Tang
  • CHECK VALVE FOR LOW PRESSURE OPERATING CONDITIONS
    Publication number: 20240026985
    Abstract: A check valve for low pressure operating conditions includes: a valve cover, a valve body, and an upper diaphragm between the body and the cover. A first pressure cavity is provided on a lower surface of the valve cover and used for accommodating a backward direction medium, a second pressure cavity is machined on an upper surface of the valve body, within which an inflow passage and an outflow passage are provided, an inflow hole is machined from an inner wall of the inflow passage to a bottom face of the second pressure cavity, and a medium enters into the second pressure cavity from the inflow passage via the inflow hole, and applies upward pressure on the upper diaphragm. A backflow channel in communication with the first pressure cavity is machined on a side wall of the outflow passage.
    Type: Application
    Filed: September 10, 2021
    Publication date: January 25, 2024
    Inventors: Xiaoxia WEI, Xianyu BAO, Na LI, Yixiao WANG, Shangang GUO, Ling BIAN, Honghui YU, Peng SHUAI, Xiaofeng LI, Xuebin WANG, Dianjing CHEN, Xuli TANG