The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2026
Filed:
Nov. 12, 2024
Hefei Institutes of Physical Sciences, Chinese Academy of Sciences, Hefei, CN;
Jiansheng Hu, Hefei, CN;
Guizhong Zuo, Hefei, CN;
Ming Huang, Hefei, CN;
Wei Xu, Hefei, CN;
Zhe Wang, Hefei, CN;
Jingsheng Yuan, Hefei, CN;
Yanhong Guan, Hefei, CN;
Huidong Zhuang, Hefei, CN;
Kai Wu, Hefei, CN;
Yao Huang, Hefei, CN;
Bin Cao, Hefei, CN;
Xianzu Gong, Hefei, CN;
Yuntao Song, Hefei, CN;
Abstract
The present disclosure discloses a method for controlling plasma edge fuel particle backflow by powder feedback injection, including: measuring a real-time Da value by a visible spectrum diagnostic system; in the plasma control system, filtering the measured Da value by a low-pass filter, and setting a target Da value at the same time; when an actual Da value is greater than the set target Da value, calculating an output control voltage signal; wherein the magnitude of the output voltage ultimately determines the magnitude of the lithium powder injection flow rate; converting a voltage signal input by the plasma control system into a sine wave signal by the amplitude mapping converter, and outputting same to the lithium powder injection system; and receiving the voltage signal and injecting the lithium powder into the fusion device by the lithium powder injection system; wherein the injected lithium powder adsorbs the fuel particles generated by the interaction between the plasma and the wall, so that the backflow of the fuel particles is reduced. In the present disclosure, the flow rate of the powder injection is automatically adjusted according to the real-time recycling level during the plasma discharge process so as to achieve real-time control of the fuel recycling.