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A radio frequency ion thruster ignition device

An ignition device and radio-frequency ion technology, which is applied in the direction of thrust reverser, plasma, machine/engine, etc., can solve the problems of shortened system life, large impact, damage acceleration grid, etc., and achieve the goal of low-power ignition operation Effect

Active Publication Date: 2022-07-15
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the first case, the impedance changes significantly before and after ignition, the impact is large, and the working fluid and energy are wasted. The second case will damage the accelerating grid and shorten the life of the system. The RF ion thruster of the electron source or the self-neutralizing RF ion thruster without a neutralizer still cannot avoid the first and second problems

Method used

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  • A radio frequency ion thruster ignition device
  • A radio frequency ion thruster ignition device
  • A radio frequency ion thruster ignition device

Examples

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Embodiment

[0038] like figure 1 As shown, a radio frequency ion thruster ignition device of the present invention includes a metal air inlet pipe 1 , an ionization chamber, a main coil 3 , an additional coil 2 and a screen grid 4 .

[0039] Further, the ionization chamber can be further divided into a main ionization chamber 5 and an auxiliary ionization chamber 6 , and the main ionization chamber 5 and the auxiliary ionization chamber 6 are fixedly connected.

[0040] The metal intake pipe 1 is fixedly connected to the secondary ionization chamber 6 .

[0041] The screen grid 4 is fixedly connected with the main ionization chamber 5, and the screen grid 4 is used for externally connecting a DC high voltage power supply.

[0042] The additional coil 2 is wound on the secondary ionization chamber 6, one end of the additional coil 2 is electrically connected to the metal air intake pipe 1, and the other end of the additional coil 2 is grounded, please refer to the circuit connection Ima...

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Abstract

The invention provides a radio frequency ion thruster ignition device, which relates to the technical field of radio frequency ion thrusters. In the working state, the screen grid is connected to the DC high voltage power supply, while the main coil wound on the main ionization chamber is connected to the radio frequency power source, and the additional coil wound on the auxiliary ionization chamber induces a sinusoidal high voltage. One end is equipotentially connected, so the strong electric field between the screen grid and the metal air inlet pipe has a half chance of being strengthened; the strengthened electric field breaks down more working fluids to become plasma, and the high-density plasma diffuses into the main ionization chamber and The unionized working medium is accelerated and collided, so that the working medium in the main ionization chamber is completely ionized, the input power of the radio frequency power source on the main coil is reduced, and the low-power ignition operation is realized.

Description

technical field [0001] The invention relates to the technical field of radio frequency ion thrusters, in particular to an ignition device of a radio frequency ion thruster. Background technique [0002] The radio frequency ion thruster is a device that uses electromagnetic waves with a frequency of about 1-10MHz to ionize the working medium and accelerates the ions in the ion extraction system to generate thrust. It is a kind of aerospace electric thruster. It has the characteristics of simple structure, high specific impulse, high efficiency and long working life. It is suitable for attitude adjustment, orbit maintenance, orbit change and even deep space exploration of various spacecraft. Compared with conventional DC ion thrusters, it has a simpler structure, The advantage of longer life. [0003] The main structure of the radio frequency ion thruster includes an ionization chamber that can smoothly transmit electromagnetic waves, a gas distributor, a coil wound outside t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03H1/00
CPCF03H1/00
Inventor 蒋文嘉宋彦孙建宁魏立秋于达仁
Owner HARBIN INST OF TECH
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