Cusped magnetic field plasma thruster

A technology that can cut magnetic field and plasma, applied in the field of plasma thrusters, can solve the problems of slow heat dissipation in the air gap and insufficient ionization of the gas working medium, and achieve the effect of improving life, avoiding paramagnetic phenomenon and high utilization rate.

Inactive Publication Date: 2020-08-14
金群英
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention mainly aims to solve the technical problems that the gas working medium cannot be fully ionized at the wall of the channel, and the air gap between the outer wall of the magnet and the inner wall of the ceramic channel is slow to dissipate heat

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
  • Cusped magnetic field plasma thruster
  • Cusped magnetic field plasma thruster
  • Cusped magnetic field plasma thruster

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] Due to the complex movement trajectories of electrons and ions in the ionization channel of the tangential magnetic field plasma thruster in the electric field and magnetic field, it is greatly affected by the inner wall structure of the ionization channel, so a large number of analysis and experimental studies are required for different channel sections .

[0033] Such as figure 1 As shown, the tangential field plasma thruster of the present invention includes an ionization channel, a permanent magnet, an anode, a hollow cathode, a magnetically permeable ring, a positioning ring and a casing, an anode is provided at the bottom of the ionization channel, and a hollow cathode is provided at the outlet. The area between the outer wall of the ionization channel and the outer shell is sequentially provided with first, second, third and fourth perman...

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

No PUM Login to view more

Abstract

The invention relates to a cusped magnetic field plasma thruster. The problems that gas working media cannot be sufficiently ionized on a channel wall face, and an air gap between a magnet outer walland a ceramic channel inner wall is slow in cooling can be solved. In order to solve the problems, the thruster comprises an ionization channel, permanent magnets, an anode, a hollow cathode, a magnetic conductive ring, a positioning ring and a shell, the side wall longitudinal section of the side, along the ionization channel, of each permanent magnet is in a right-angle trapezoid or rectangle, the inner diameter of the ionization channel in the direction from the bottom of the channel to an outlet is increased sequentially in a discrete ladder manner, the structure is adopted to enable electronics which do reciprocating motion at the high speed between two magnetic tip ends to be sufficiently ionized, and the technical effect that the gas working media are high in use rate can be achieved. A heat exchange device is mounted on the thruster, the temperature of the air gap between the magnet outer wall and the ceramic channel inner wall can be reduced, the paramagnetic phenomenon causedby too high temperature of the permanent magnets can be avoided, and the service life of the thruster can be prolonged.

Description

technical field [0001] The invention relates to the technical field of tangent magnetic field plasma propulsion, in particular to a tangent magnetic field plasma thruster with a special cross-sectional channel. Background technique [0002] This application is a divisional application, and the parent application number is CN 201910119891.5. [0003] The tangential magnetic field plasma thruster is an advanced electric propulsion device, which is widely used in the field of satellite position maintenance and attitude control, and is known as the first choice for future space vehicles due to its simple structure, high specific impulse, and high efficiency. One of the propulsion devices. [0004] When electrons are emitted from the cathode at the exit of the channel and move toward the anode along the channel axis, due to the magnetic confinement and the magnetic mirror effect of the magnetic tip, it is difficult for the electrons to reach the straight channel wall in the tang...

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 Applications(China)
IPC IPC(8): F03H1/00
CPCF03H1/0031F03H1/0081
Inventor 金群英
Owner 金群英
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
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap