A Plasma Sealing Structure of Discharge Chamber of Annular Magnetic Steel Annular Tangent Field Ion Thruster
A technology of ion thruster and sealing structure, which is applied in the direction of utilizing plasma, thrust reverser, machine/engine, etc., to ensure long-term insulation capability, prolong surface creepage distance, and prevent plasma leakage.
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[0022] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0023] This embodiment provides a plasma sealing structure in the discharge chamber of the annular magnetic steel annular tangential field ion thruster, such as figure 1 As shown, the sealing structure includes a ceramic ring 7, a shielding cover 4, a Z-shaped sealing ring 3 and a sealing gap adjustment pad 10, which are installed on an ion thruster, and the ion thruster includes a grid assembly 2, an anode 6, and a ceramic support assembly 1 and support ring 9. The anode 6 is a stepped cylinder structure, including a large-diameter cylinder and a small-diameter cylinder, and the axial section is convex; the ceramic support assembly 1 is fixed on the support ring 9, and the ceramic support assembly 1 is used to fix the grid assembly 2 .
[0024] Such as figure 2 As shown, the shielding cover 4 is a metal ring with a cylindrical protrusion, and the axial...
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