Patents by Inventor Yanxu SUN

Yanxu 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).

  • Device and method for inspecting a condition of rotor windings of a generator
    Patent number: 11131712
    Abstract: A device for inspecting the rotor windings of a generator includes a sequential logic circuit that generates a full-cycle pulse. A high-voltage full-cycle pulse matching generator couples the full-cycle pulse generated by the sequential logic circuit to form a corresponding transient bidirectional rotating magnetic field pulse. The transient bidirectional rotating magnetic field pulse is transmitted to two ends and a large shaft of the generator rotor winding through an impedance-matched connecting line. The transient bidirectional rotating magnetic field pulse generates a resonance effect with each large coil in the rotor. The pulse signal coupling feedback acquisition circuit couples all waveforms reflected by the generator rotor to form a magnetic field waveform, and the magnetic field waveform is transmitted to a data acquisition system by an operational amplifier. A central processing unit transmits a digital information stream to an upper computer.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: September 28, 2021
    Assignee: SHANDONG GUTE ELECTRIC CO., LTD.
    Inventors: Yuewu Zhang, Chicheng Liu, Jingrong Chen, Genyin Wu, Xu Han, Lixin Lu, Juncheng Dong, Yuqing Wei, Kunpeng Tian, Fengjun Wang, Jianxi Liu, Yanxu Sun, Zhen Lv, Jianfeng Sun, Pian Zhang
  • DEVICE AND METHOD FOR INSPECTING A CONDITION OF ROTOR WINDINGS OF A GENERATOR
    Publication number: 20200400746
    Abstract: A device for inspecting the rotor windings of a generator includes a sequential logic circuit that generates a full-cycle pulse. A high-voltage full-cycle pulse matching generator couples the full-cycle pulse generated by the sequential logic circuit to form a corresponding transient bidirectional rotating magnetic field pulse. The transient bidirectional rotating magnetic field pulse is transmitted to two ends and a large shaft of the generator rotor winding through an impedance-matched connecting line. The transient bidirectional rotating magnetic field pulse generates a resonance effect with each large coil in the rotor. The pulse signal coupling feedback acquisition circuit couples all waveforms reflected by the generator rotor to form a magnetic field waveform, and the magnetic field waveform is transmitted to a data acquisition system by an operational amplifier. A central processing unit transmits a digital information stream to an upper computer.
    Type: Application
    Filed: August 17, 2018
    Publication date: December 24, 2020
    Applicant: SHANDONG GUTE ELECTRIC CO., LTD.
    Inventors: Yuewu ZHANG, Chicheng LIU, Jingrong CHEN, Genyin WU, Xu HAN, Lixin LU, Juncheng DONG, Yuqing WEI, Kunpeng TIAN, Fengjun WANG, Jianxi LIU, Yanxu SUN, Zhen LV, Jianfeng SUN, Pian ZHANG