Patents by Inventor Zhichun Xu

Zhichun Xu 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).

  • Patent number: 11831225
    Abstract: A free piston generator based on a rigid synchronous transmission system is provided, which belongs to the technical field of power energy. The present disclosure solves the problems of low power generation efficiency and low stability of the existing free piston generator. The free piston generator based on the rigid synchronous transmission system includes a first linear generator set, a second linear generator set, a rigid synchronous transmission assembly, two high-pressure cylinders arranged at two ends of the first linear generator set, and two low-pressure cylinders arranged at two ends of the second linear generator set.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: November 28, 2023
    Assignee: HARBIN ENGINEERING UNIVERSITY
    Inventors: Long Liu, Qihao Mei, Hao Zhao, Zhichun Xu, Yuanheng Tang, Chen An, Xiao Han, Junjie Liu
  • Patent number: 11735978
    Abstract: A free piston generator based on a rigid synchronous transmission system is provided, which belongs to the technical field of power energy. The present disclosure solves the problems of low power generation efficiency and low stability of the existing free piston generator. The free piston generator based on the rigid synchronous transmission system includes a first linear generator set, a second linear generator set, a rigid synchronous transmission assembly, two high-pressure cylinders arranged at two ends of the first linear generator set, and two low-pressure cylinders arranged at two ends of the second linear generator set.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: August 22, 2023
    Assignee: HARBIN ENGINEERING UNIVERSITY
    Inventors: Long Liu, Qihao Mei, Hao Zhao, Zhichun Xu, Yuanheng Tang, Chen An, Xiao Han, Junjie Liu
  • Patent number: 11616420
    Abstract: Provided is a free piston generator based on a split thermodynamic cycle, which belongs to the technical field of power energy. The present disclosure solves the problem of low power generation efficiency of an existing free piston generator. The free piston generator includes a linear generator set and two internal combustion engine sets arranged at two ends of the linear generator set. Air is first subjected to first-stage compression by the low-pressure cylinder set in the internal combustion engine sets and is then subjected to second-stage compression in the high-pressure cylinders, so that the intake pressure of an internal combustion engine is effectively increased, which is favorable for increasing the average effective pressure in a work process, thereby improving the thermal efficiency and the power generation efficiency of the free piston generator.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: March 28, 2023
    Assignee: HARBIN ENGINEERING UNIVERSITY
    Inventors: Long Liu, Yuanheng Tang, Chen An, Xiao Han, Junjie Liu, Qihao Mei, Hao Zhao, Zhichun Xu
  • Patent number: 11421586
    Abstract: The present disclosure provides a six-cylinder opposed free piston internal combustion engine generator. The generator comprises two free piston internal combustion engine sets, one opposed piston internal combustion engine set and two linear generator sets. Air entering cylinders is subjected to first-stage compression in low-pressure cylinder sets in the free piston internal combustion engine sets and the opposed piston internal combustion engine set and then subjected to second-stage compression in high-pressure cylinder sets, and a high pressure gas produced after the combustion is subjected to first-stage expansion in the high-pressure cylinder sets and then subjected to second-stage expansion in the low-pressure cylinder sets.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: August 23, 2022
    Assignee: Harbin Engineering University
    Inventors: Long Liu, Chen An, Zhichun Xu, Yuanheng Tang, Hao Zhao, Xiao Han, Junjie Liu, Qihao Mei
  • Publication number: 20220120214
    Abstract: The present disclosure provides a six-cylinder opposed free piston internal combustion engine generator. The generator comprises two free piston internal combustion engine sets, one opposed piston internal combustion engine set and two linear generator sets. Air entering cylinders is subjected to first-stage compression in low-pressure cylinder sets in the free piston internal combustion engine sets and the opposed piston internal combustion engine set and then subjected to second-stage compression in high-pressure cylinder sets, and a high pressure gas produced after the combustion is subjected to first-stage expansion in the high-pressure cylinder sets and then subjected to second-stage expansion in the low-pressure cylinder sets.
    Type: Application
    Filed: December 30, 2021
    Publication date: April 21, 2022
    Inventors: Long Liu, Chen An, Zhichun Xu, Yuanheng Tang, Hao Zhao, Xiao Han, Junjie Liu, Qihao Mei
  • Publication number: 20220123626
    Abstract: Provided is a free piston generator based on a split thermodynamic cycle, which belongs to the technical field of power energy. The present disclosure solves the problem of low power generation efficiency of an existing free piston generator. The free piston generator includes a linear generator set and two internal combustion engine sets arranged at two ends of the linear generator set. Air is first subjected to first-stage compression by the low-pressure cylinder set in the internal combustion engine sets and is then subjected to second-stage compression in the high-pressure cylinders, so that the intake pressure of an internal combustion engine is effectively increased, which is favorable for increasing the average effective pressure in a work process, thereby improving the thermal efficiency and the power generation efficiency of the free piston generator.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 21, 2022
    Inventors: Long Liu, Yuanheng Tang, Chen An, Xiao Han, Junjie Liu, Qihao Mei, Hao Zhao, Zhichun Xu
  • Publication number: 20220123627
    Abstract: A free piston generator based on a rigid synchronous transmission system is provided, which belongs to the technical field of power energy. The present disclosure solves the problems of low power generation efficiency and low stability of the existing free piston generator. The free piston generator based on the rigid synchronous transmission system includes a first linear generator set, a second linear generator set, a rigid synchronous transmission assembly, two high-pressure cylinders arranged at two ends of the first linear generator set, and two low-pressure cylinders arranged at two ends of the second linear generator set.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 21, 2022
    Inventors: Long Liu, Qihao Mei, Hao Zhao, Zhichun Xu, Yuanheng Tang, Chen An, Xiao Han, Junjie Liu