Patents by Inventor Zhengzheng Pang

Zhengzheng Pang 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).

  • Advanced grid spacer design for a nuclear fuel assembly
    Patent number: 9767929
    Abstract: A new, improved grid spacer for a nuclear fuel assembly is provided, comprising several straps which intersect each other alternatively to form a plurality of grid cells and fuel rods reside in some of the grid cells; the grid spacer further comprises mixing elements set at the corner of the grid cells in which the fuel rods have resided; wherein the mixing element comprises a mixing vane stretching towards the direction of the fuel rod and a flow funnel set on the bended edge of the mixing vane continuously and extending towards adjacent grid cells; the mixing vane and the flow funnel set across two sides of two adjacent grid cells respectively, and the flow funnel introduces the coolant in the grid cell at its side to the mixing vane, then the mixing vane introduces the coolant to the grid cell at its own side.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: September 19, 2017
    Assignees: CHINA NUCLEAR POWER TECHNOLOGY RESEARCH INSTITUTE, CHINA GUANGDONG NUCLEAR POWER HOLDING
    Inventors: Wenchi Yu, Yuemin Zhou, Weicai Li, Xiaoming Chen, Zhengzheng Pang, Jingwen Yan, Yan Guo
  • ADVANCED GRID SPACER DESIGN FOR A NUCLEAR FUEL ASSEMBLY
    Publication number: 20130230133
    Abstract: A new, improved grid spacer for a nuclear fuel assembly is provided, comprising several straps which intersect each other alternatively to form a plurality of grid cells and fuel rods reside in some of the grid cells; the grid spacer further comprises mixing elements set at the corner of the grid cells in which the fuel rods have resided; wherein the mixing element comprises a mixing vane stretching towards the direction of the fuel rod and a flow funnel set on the bended edge of the mixing vane continuously and extending towards adjacent grid cells; the mixing vane and the flow funnel set across two sides of two adjacent grid cells respectively, and the flow funnel introduces the coolant in the grid cell at its side to the mixing vane, then the mixing vane introduces the coolant to the grid cell at its own side.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 5, 2013
    Applicants: China Guangdong Nuclear Power Holding, China Nuclear Power Technology Research Institute
    Inventors: Wenchi Yu, Yuemin Zhou, Weicai Ll, Xiaoming Chen, Zhengzheng Pang, Jingwen Yan, Yan Guo