Patents by Inventor Chunlong SUN

Chunlong SUN 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).

  • Electric machine driving method and system under non-conventional work mode of oil pumping unit
    Patent number: 10539129
    Abstract: The present invention discloses a method and a system pertaining to the field of oil production engineering. According to the method, the crank complete-cycle operation uses a utility frequency driving mode, and the crank incomplete-cycle pumping operation and the crank incomplete-cycle no-pumping, operation use a variable, frequency driving mode. The system is provided with a utility frequency loop and a variable frequency loop which are provided with a common input terminal and a common output terminal. The common input terminal of the utility frequency loop and the variable frequency loop is connected to a utility frequency power supply circuit, and the output terminal is connected to a driving electric machine of the oil pumping unit. A frequency changer is configured in the variable frequency loop. An operation control unit is further configured outside the utility frequency loop and the variable frequency loop.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: January 21, 2020
    Assignee: HARBIN SURFICS ELECTRICAL TECHNOLOGY INC
    Inventors: Ye Yang, Lin Wang, Min Zhang, Mingting Han, Yanan Sun, Chunlong Sun, Guoqing Wang, Hongliang Gong, Jie Zhang, Wen Xing, Feng Wei, Deshi Zhang, Jinyuan Li, Chenglin Liu, Feifei Wan, Yunlong Chen
  • ELECTRIC MACHINE DRIVING METHOD AND SYSTEM UNDER NON-CONVENTIONAL WORK MODE OF OIL PUMPING UNIT
    Publication number: 20190145228
    Abstract: The present invention discloses a method and a system pertaining to the field of oil production engineering. According to the method, the crank complete-cycle operation uses a utility frequency driving mode, and the crank incomplete-cycle pumping operation and the crank incomplete-cycle no-pumping, operation use a variable, frequency driving mode. The system is provided with a utility frequency loop and a variable frequency loop which are provided with a common input terminal and a common output terminal. The common input terminal of the utility frequency loop and the variable frequency loop is connected to a utility frequency power supply circuit, and the output terminal is connected to a driving electric machine of the oil pumping unit. A frequency changer is configured in the variable frequency loop. An operation control unit is further configured outside the utility frequency loop and the variable frequency loop.
    Type: Application
    Filed: May 10, 2017
    Publication date: May 16, 2019
    Applicant: HARBIN SURFICS ELECTRICAL TECHNOLOGY INC
    Inventors: Ye YANG, Lin WANG, Min ZHANG, Mingting HAN, Yanan SUN, Chunlong SUN, Guoqing WANG, Hongliang GONG, Jie ZHANG, Wen XING, Feng WEI, Deshi ZHANG, Jinyuan LI, Chenglin LIU, Feifei WAN, Yunlong CHEN