Patents by Inventor Fujun NIU

Fujun NIU 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).

  • Unpowered anti-frost anti-heave heat gathering device and subgrade thereof
    Patent number: 12116737
    Abstract: The invention provides an unpowered anti-frost anti-heave heat gathering device and subgrade thereof, comprising a solar heat absorber, a circulating tube, a transducer, and a heat gathering tube, wherein the solar heat absorber and the transducer are connected by the circulating tube to form a circulation loop, through which a liquid state circulating working medium flows, the solar heat absorber is configured to absorb solar energy and transfer heat to the transducer through the liquid state circulating working medium, the heat gathering tube comprises a heat absorption section and a heat release section in communication, the heat absorption section is inserted into the transducer for absorbing heat from the transducer and transferring heat to the heat release section, and the heat release section is inserted into a subgrade for heating the subgrade.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: October 15, 2024
    Assignee: NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CHINESE ACADEMY OF SCIENCES
    Inventors: Qihao Yu, Zhenyu Zhang, Fujun Niu
  • UNPOWERED ANTI-FROST ANTI-HEAVE HEAT GATHERING DEVICE AND SUBGRADE THEREOF
    Publication number: 20220307202
    Abstract: The invention provides an unpowered anti-frost anti-heave heat gathering device and subgrade thereof, comprising a solar heat absorber, a circulating tube, a transducer, and a heat gathering tube, wherein the solar heat absorber and the transducer are connected by the circulating tube to form a circulation loop, through which a liquid state circulating working medium flows, the solar heat absorber is configured to absorb solar energy and transfer heat to the transducer through the liquid state circulating working medium, the heat gathering tube comprises a heat absorption section and a heat release section in communication, the heat absorption section is inserted into the transducer for absorbing heat from the transducer and transferring heat to the heat release section, and the heat release section is inserted into a subgrade for heating the subgrade.
    Type: Application
    Filed: January 24, 2022
    Publication date: September 29, 2022
    Inventors: Qihao YU, Zhenyu ZHANG, Fujun NIU