Hollow anode for plasma thruster of cusped magnetic field

A hollow anode and plasma technology, applied in the direction of using plasma, thrust reverser, machine/engine, etc., can solve the problems of demagnetization of permanent magnets and shortening of thruster life, and achieve the improvement of life, efficiency and prolong life of anode. Effect

Inactive Publication Date: 2015-06-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the problems of permanent magnet demagnetization and thruster life reduction caused by the overheating of the anode in the existing tangent ma

Method used

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  • Hollow anode for plasma thruster of cusped magnetic field
  • Hollow anode for plasma thruster of cusped magnetic field
  • Hollow anode for plasma thruster of cusped magnetic field

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Experimental program
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specific Embodiment approach 1

[0029] Embodiment 1: A hollow anode for a tangent magnetic field plasma thruster according to this embodiment is characterized in that it includes three parts: a gas distributor 1, a buffer chamber 2 and a ceramic sleeve 3;

[0030] The gas distributor 1 includes an air supply part 1-1 and a distributor bottom plate 1-2;

[0031] The air supply part 1-1 includes two parts: a conduit 1-1-1 and a chamber 1-1-2, one side of the chamber 1-1-2 communicates with the conduit 1-1-1, and the cavity The other side of the chamber 1-1-2 communicates with the bottom surface of the buffer chamber 2. The center of the other bottom surface of the buffer chamber 2 has a hole and leads to the inside of the discharge channel. The distributor bottom plate 1-2 is connected to the chamber 1-1 The boss of -2 realizes the transition fit;

[0032] Figure 6 As shown, the ceramic sleeve 3 completely surrounds the chamber 1-1-2 and the buffer chamber 2, so that electrons can only enter the inside of t...

specific Embodiment approach 2

[0048] Embodiment 2: This embodiment differs from Embodiment 1 in that: the gas distributor 1 is a gas distributor made of metal. In practice, stainless steel is used to withstand a certain pressure difference.

[0049] Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0050] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the buffer cavity 2 is made of pure iron.

[0051] Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention provides a hollow anode for a plasma thruster of a cusped magnetic field, and relates to a plasma thruster of a cusped magnetic field. By the hollow anode for the plasma thruster of the cusped magnetic field, the problems that a permanent magnet is demagnetized and the service life of a thrust is shortened due to the fact that an anode of the existing thruster of a cusped magnetic field is over hot are solved. The ionization rate of the thruster is increased, and the performance of the thruster is further improved. The hollow anode for the plasma thruster of the cusped magnetic field comprises a gas distributor, a buffering cavity and a ceramic sleeve, wherein a gas supply piece comprises a guide tube and a cavity; and the gas distributor comprises the gas supply piece and a distributor bottom plate. The hollow anode for the plasma thruster of the cusped magnetic field is used in the field of plasma thrusters of the cusped magnetic field.

Description

technical field [0001] The invention relates to a tangent magnetic field plasma thruster. Background technique [0002] The tangent magnetic field plasma thruster is gradually favored by the aerospace industry due to its high specific impulse, long life, and wide thrust range. It is composed of an anode, a cathode, a ceramic channel, and a permanent magnet. opposite to produce a tangential magnetic field. An anode is arranged upstream of the channel, and a cathode is placed at the outlet, thereby forming an axial electric field inside the channel. Under the action of the above-mentioned electromagnetic field, the electrons released by the cathode enter the interior of the ceramic discharge channel along the magnetic force lines, and meet the gas working fluid entering from the anode to undergo impact ionization. Under the action of the axial electric field, the ejection is accelerated to form a thrust, which is finally neutralized by the electrons discharged from the catho...

Claims

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Application Information

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IPC IPC(8): F03H1/00
CPCF03H1/0081
Inventor 刘辉陈蓬勃于达仁
Owner HARBIN INST OF TECH
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