Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

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.

Active Publication Date: 2020-12-15
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a plasma sealing structure of the discharge chamber of the annular magnetic steel annular tangential field ion thruster, which solves the problem of electrical insulation and discharge chamber between the grid assembly and the anode of the ion thruster in a long-term plasma environment Plasma Sealing Issues

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Plasma Sealing Structure of Discharge Chamber of Annular Magnetic Steel Annular Tangent Field Ion Thruster
  • A Plasma Sealing Structure of Discharge Chamber of Annular Magnetic Steel Annular Tangent Field Ion Thruster

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a plasma sealing structure for a discharge chamber of an annular magnetic steel ring cutting field ion thruster. The plasma sealing structure comprises a ceramic ring, a shielding cover and a Z-shaped sealing ring; peripheral equipment comprises a grid assembly, an anode, an insulation supporting assembly and a supporting ring of the ion thruster, and the anode is of a stepped cylinder structure and comprises a large-diameter cylinder and a small-diameter cylinder; the shielding cover is installed on the outer wall of the upper end of the small-diameter cylinder of the anode, the ceramic ring is located below the shielding cover and fixed to the end face between the large-diameter cylinder and the small-diameter cylinder of the anode, and the shielding cover shieldspart of the end face of the ceramic ring and the inner wall face of the ceramic ring to realize shielding and realize electric insulation between the anode and the grid assembly; and the horizontal end face of one side of the Z-shaped sealing ring is fixed to the bottom face of the grid assembly, and the horizontal end face of the other side is compressed at the top end of the ceramic ring to complete plasma sealing of the discharge chamber. The problems of electric insulation between the grid assembly and the anode of the ion thruster in a long-term plasma environment and plasma sealing of the discharge chamber are solved.

Description

technical field [0001] The invention relates to the technical field of aerospace electric propulsion, in particular to a plasma sealing structure for a discharge chamber of an annular magnetic steel annular tangential field ion thruster. Background technique [0002] As an advanced space propulsion technology, electric propulsion technology has been widely used in various space application fields. With the continuous deepening of human space exploration, the speed increment required for exploration tasks is getting larger and larger. Some large-speed incremental tasks can only be completed with the support of high-power, long-life ion-electric propulsion systems. [0003] The ion thruster is the core of the ion electric propulsion system, and other supporting units, such as power supply, storage and supply, and control, are all served by the ion thruster. High-power ion thrusters often have larger beam apertures. Under the same grid spacing and total accelerating voltage, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F03H1/00
CPCF03H1/0006
Inventor 王小军赵以德张天平吴宗海黄永杰李沛李娟池秀芬江豪成杨福全
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products