Patents by Inventor Yugang CHENG

Yugang CHENG 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).

  • Reciprocating rock fracture friction-seepage characteristic test device and method
    Patent number: 11692919
    Abstract: The present disclosure discloses a reciprocating rock fracture friction-seepage characteristic test device and method. The test device includes an X-axis shear system, a Y-axis stress loading system, a Z-axis stress loading system, a servo oil source system, 5 a pore pressure loading system, and a host. The X-axis shear system includes an X-axis EDC controller, an upper shear box, a lower shear box, an X-axis left hydraulic cylinder, an X-axis right hydraulic cylinder, an X-axis left pressure head, an X-axis right pressure head, an X-axis left pressure sensor, an X-axis right pressure sensor, an X-axis displacement sensor, and an X-axis 10 displacement sensor. The pore pressure loading system includes an air cylinder, a pressure gauge, a pressure reducing valve, a fluid inlet pipeline, a fluid outlet pipeline, and a flowmeter.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: July 4, 2023
    Assignees: CHONGQING INSTITUTE OF GEOLOGY AND MINERAL RESOURCES, CHONGQING UNIVERSITY
    Inventors: Zhaohui Lu, Yunzhong Jia, Jiren Tang, Yugang Cheng, Junping Zhou, Lei Zhou, Pei He
  • Reciprocating Rock Fracture Friction-Seepage Characteristic Test Device and Method
    Publication number: 20210285858
    Abstract: The present disclosure discloses a reciprocating rock fracture friction-seepage characteristic test device and method. The test device includes an X-axis shear system, a Y-axis stress loading system, a Z-axis stress loading system, a servo oil source system, 5 a pore pressure loading system, and a host. The X-axis shear system includes an X-axis EDC controller, an upper shear box, a lower shear box, an X-axis left hydraulic cylinder, an X-axis right hydraulic cylinder, an X-axis left pressure head, an X-axis right pressure head, an X-axis left pressure sensor, an X-axis right pressure sensor, an X-axis displacement sensor, and an X-axis 10 displacement sensor. The pore pressure loading system includes an air cylinder, a pressure gauge, a pressure reducing valve, a fluid inlet pipeline, a fluid outlet pipeline, and a flowmeter.
    Type: Application
    Filed: March 9, 2021
    Publication date: September 16, 2021
    Inventors: Zhaohui LU, Yunzhong JIA, Jiren TANG, Yugang CHENG, Junping ZHOU, Lei ZHOU, Pei HE