Patents by Inventor Yifei Wu

Yifei Wu 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).

  • Publication number: 20180138687
    Abstract: The present disclosure provides a hybrid circuit breaker having a bridge induction transfer structure, characterized in that the circuit breaker comprises a main current circuit, an over-voltage limiting circuit, and a transfer current circuit; and the main current circuit, the over-voltage limiting circuit, and the transfer current circuit are connected in parallel. The induction transfer circuit in the transfer current circuit comprises an induction transfer inductor, an induction transfer capacitor, and an induction transfer branch power semiconductor device which are connected in series; the transfer current circuit further comprises a bridge circuit comprised of a main loop capacitor; the main loop inductor and the induction transfer inductor are coupled to form a transformer. The present invention can implement fast breaking of the current, and effectively reduce the volume and manufacturing cost of the circuit breaker. With the induction transfer circuit, fast current transfer is implemented.
    Type: Application
    Filed: April 21, 2017
    Publication date: May 17, 2018
    Applicant: XI'AN JIAOTONG UNIVERSITY
    Inventors: Fei YANG, Yi WU, Mingzhe RONG, Yifei WU, Chunping NIU
  • Patent number: 9957671
    Abstract: An anti-rutting pavement structure is arranged consecutively from bottom to top, a semi-rigid base layer, a SBS emulsified asphalt adhesive layer, a Type II latex cement mortar poured asphalt concrete lower layer, a Type I latex cement mortar poured asphalt concrete middle layer and a high viscosity modified asphalt SMA-13 concrete surface layer.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: May 1, 2018
    Assignees: RESEACH INSTITUTE OF HIGHWAY MINISTRY OF TRANSPORT, CHONGQING CONSTRUCTION ENGINEERING GROUP CORPORATION LIMITED
    Inventors: Ke Zhong, Yifei Wu, Sang Luo, Bo Chen, Guoqiang Liu, Xiaochen Ma, Jing Ding, Chengyong Hu, Guanghua Yue, Ronghua Chang
  • Publication number: 20180044862
    Abstract: An anti-rutting pavement structure, which is characterized in that it comprises, arranged consecutively from bottom to top, a semi-rigid base layer, a SBS emulsified asphalt adhesive layer, a Type II latex cement mortar poured asphalt concrete lower layer, a Type I latex cement mortar poured asphalt concrete middle layer and a high viscosity modified asphalt SMA-13 concrete surface layer. Compared with prior art, the present invention has improved great contributions of the middle and lower layer of the semi-rigid base layer pavement for rutting under high temperatures and heavy loads, while the pavement having a good crack-resistance, improvement for coordination of the overall deformation of the surface layer and the base layer, and a short construction conservation period, short time before traffic opening, excellent economic performance.
    Type: Application
    Filed: January 19, 2017
    Publication date: February 15, 2018
    Inventors: Ke ZHONG, Yifei WU, Sang LUO, Bo CHEN, Guoqiang LIU, Xiaochen MA, Jing DING, Chengyong HU, Guanghua YUE, Ronghua CHANG
  • Patent number: 9692225
    Abstract: A hybrid DC breaker, comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein the main current circuit, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits 1-4, wherein the circuit 1 and the circuit 4 are connected in series at first and then connected with the main current circuit in parallel; a pre-charged capacitor is connected with the circuit 4 in parallel after being connected with the circuit 3 in series; and, one end of the circuit 2 is connected with the left end of the main current circuit while the other end thereof is connected with a connection point of the pre-charged capacitor and the circuit 3.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: June 27, 2017
    Assignee: XI' AN JIAOTONG UNIVERSITY
    Inventors: Yi Wu, Mingzhe Rong, Fei Yang, Yifei Wu, Hao Sun, Chunping Niu
  • Patent number: 9640983
    Abstract: A bidirectional hybrid breaker comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein the main current circuit, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits 1-4, wherein the circuit 1 and the circuit 4 are connected in series at first and then connected with the main current circuit in parallel; a pre-charged capacitor is connected with the circuit 4 in parallel after being connected with the circuit 3 in series; and, one end of the circuit 2 is connected with the left end of the main current circuit while the other end thereof is connected with a connection point of the pre-charged capacitor and the circuit 3.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: May 2, 2017
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Fei Yang, Mingzhe Rong, Yi Wu, Yifei Wu, Hao Sun, Chunping Niu
  • Patent number: 9640973
    Abstract: A hybrid high-voltage DC breaker, consists of a plurality of completely identical breaker modules connected in series. Each of the breaker modules comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein a high-speed mechanical switch, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits 1-4, wherein the circuit 1 and the circuit 4 are connected in series at first and then connected with the main current circuit in parallel; a pre-charged capacitor is connected with the circuit 4 in parallel after being connected with the circuit 3 in series; and, one end of the circuit 2 is connected with the left end of the main current circuit while the other end thereof is connected with a connection point of the pre-charged capacitor and the circuit 3.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: May 2, 2017
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Mingzhe Rong, Yi Wu, Chunping Niu, Yifei Wu, Hao Sun, Fei Yang
  • Publication number: 20140376140
    Abstract: A hybrid DC breaker, comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein the main current circuit, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits 1-4, wherein the circuit 1 and the circuit 4 are connected in series at first and then connected with the main current circuit in parallel; a pre-charged capacitor is connected with the circuit 4 in parallel after being connected with the circuit 3 in series; and, one end of the circuit 2 is connected with the left end of the main current circuit while the other end thereof is connected with a connection point of the pre-charged capacitor and the circuit 3.
    Type: Application
    Filed: January 17, 2014
    Publication date: December 25, 2014
    Applicant: Xi'an Jiaotong University
    Inventors: Yi WU, Mingzhe RONG, Fei YANG, Yifei WU, Hao SUN, Chunping NIU
  • Publication number: 20140218832
    Abstract: A bidirectional hybrid breaker comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein the main current circuit, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits 1-4, wherein the circuit 1 and the circuit 4 are connected in series at first and then connected with the main current circuit in parallel; a pre-charged capacitor is connected with the circuit 4 in parallel after being connected with the circuit 3 in series; and, one end of the circuit 2 is connected with the left end of the main current circuit while the other end thereof is connected with a connection point of the pre-charged capacitor and the circuit 3.
    Type: Application
    Filed: January 17, 2014
    Publication date: August 7, 2014
    Applicant: Xi'an Jiaotong University
    Inventors: Fei YANG, Mingzhe RONG, Yi WU, Yifei WU, Hao SUN, Chunping NIU
  • Publication number: 20140217833
    Abstract: A hybrid high-voltage DC breaker, consists of a plurality of completely identical breaker modules connected in series. Each of the breaker modules comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein a high-speed mechanical switch, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits 1-4, wherein the circuit 1 and the circuit 4 are connected in series at first and then connected with the main current circuit in parallel; a pre-charged capacitor is connected with the circuit 4 in parallel after being connected with the circuit 3 in series; and, one end of the circuit 2 is connected with the left end of the main current circuit while the other end thereof is connected with a connection point of the pre-charged capacitor and the circuit 3.
    Type: Application
    Filed: January 17, 2014
    Publication date: August 7, 2014
    Applicant: Xi'an Jiaotong University
    Inventors: Mingzhe RONG, Yi WU, Chunping NIU, Yifei WU, Hao SUN, Fei YANG
  • Publication number: 20080081379
    Abstract: A homogeneous, non-competitive, double receptor agglutination assay for measuring immunosuppressant drugs is described. The assay employs at least two receptors wherein each receptor is specific for a separate binding site on the drug and wherein each receptor is bound to a detection particle. The immunosuppressant drug binds to the receptors and causes particle agglutination, which can be measured and correlated with the presence or amount of immunosuppressant drug in a sample.
    Type: Application
    Filed: July 3, 2007
    Publication date: April 3, 2008
    Inventors: Gerald F. Sigler, Mitali Ghoshal, Shaker Rashid, Yifei Wu, Allan R. Dorn, Jane S.C. Tsai