Magnetic nozzle of variable specific impulse magnetic plasma rocket

A technology of magnetic plasma and magnetic nozzle, which is applied in the field of magnetic fluid, can solve the problems of speed waste and achieve the effects of wide working range, increased specific impulse and reduced corrosion

Inactive Publication Date: 2012-05-02
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The purpose of the invention is to solve the problem of speed waste in the plasma acceleration process in the electric propulsion system, and propose a new magnetic nozzle of a variable specific impulse magnetoplasma rocket

Method used

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  • Magnetic nozzle of variable specific impulse magnetic plasma rocket

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Experimental program
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Embodiment

[0019] The magnetic nozzle of a variable specific impulse magnetoplasma rocket, as the last stage of the variable specific impulse magnetoplasma rocket, is installed at the tail end of the rocket engine to accelerate the flow of high-speed rotating plasma from the ICRH stage.

[0020] The magnetic nozzle consists of a nozzle and a superconducting coil, such as figure 1 shown. Among them, the nozzle is installed at the tail end of the rocket engine shell, and the shape of the nozzle is an expansion nozzle, and the expansion ratio of the nozzle (that is, the area ratio of the outlet area to the throat of the nozzle) is 40:1; the material of the nozzle is Tungsten-copper alloy is selected to reduce ablation and thrust eccentricity.

[0021] The outer diameter of the inlet end of the nozzle is 40 cm, the outer diameter of the outlet end is 80 cm, and the distance from the inlet end to the outlet end is 100 cm. The thickness of the nozzle wall is 5 cm.

[0022] The magnetic fiel...

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Abstract

The invention relates to a magnetic nozzle of a variable specific impulse magnetic plasma rocket, aiming at solving the problem of speed waste during acceleration of a plasma body in an electric propulsion system and relating to the design technology of the magnetic nozzle of the variable specific impulse magnetic plasma rocket. The magnetic nozzle of the variable specific impulse magnetic plasma rocket is used for changing a circumferential speed of the plasma body to an axial speed and belongs to the magnetic fluid technology field. The magnetic nozzle which is used as the last stage of the variable specific impulse magnetic plasma rocket is arranged at the tail end of a rocket engine and consists of a sprayer nozzle and a superconducting coil, wherein, the sprayer nozzle is arranged at the tail end of a shell body of the rocket engine and is an expanding nozzle, the nozzle expansion ratio which is the ratio between a nozzle exit area and a nozzle throat area is 40:1, the nozzle is made of a heat-resisting and ablation-resisting alloy material to reduce ablation and thrust eccentricity.

Description

technical field [0001] The invention relates to a magnetic nozzle design technology of a variable specific impulse magnetic plasma rocket, which is used to convert the circumferential velocity of the plasma into an axial velocity, and belongs to the technical field of magnetic fluid. Background technique [0002] Compared with other propulsion methods, the variable specific impulse magnetoplasma rocket has the advantages of variable thrust, adjustable specific impulse and no electrodes. It can be one of the preferred propulsion methods for the future manned Mars program. At present, controllable nuclear fusion is used as the power supply method for future high-power variable specific impulse magnetoplasma rockets, but the power supply of smaller power variable specific impulse magnetoplasma rockets can still be supplied by solar energy devices. Smaller power variable specific impulse magnetoplasma rockets can be used as thrusters for orbit maintenance and transfer of satelli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03H1/00
CPCF03H1/0093
Inventor 刘猛武志文刘向阳
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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