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A micro-propulsion based on phase change

A technology of micro-propellers and thrusters, applied in thrust reversers, machines/engines, mechanical equipment, etc., can solve the problems of large damage to the nozzle and the nozzle cannot be used for a long time, and achieve the effect of large thrust

Active Publication Date: 2019-03-12
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the driving methods of the propeller include piezoelectric ceramic drive, electroosmotic flow, thermal bubble drive, etc. The piezoelectric ceramic drive uses the action of pulse voltage on the piezoelectric ceramic to make the liquid squeezed and ejected. This injection method requires The voltage changes direction periodically; the electroosmotic flow drives the liquid injection, which uses the directional movement of the charged liquid in the electric field to promote the liquid to be ejected. This driving method requires the liquid to be a charged liquid, and due to the influence of surface tension, the threshold voltage is generally at Above 3kV; thermal bubble driving uses resistance heating to generate bubbles in the liquid, the bubbles burst, and the liquid is ejected. This kind of driving method will cause great damage to the nozzle, and the nozzle cannot be used for a long time

Method used

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  • A micro-propulsion based on phase change
  • A micro-propulsion based on phase change
  • A micro-propulsion based on phase change

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Such as Figure 1-2 As shown, a micro propulsion based on phase change, including propeller body and nozzle, the nozzle includes glass nanotubes 1, gold nanorods 2, liquid fluorocarbon 3, PLGA nanoparticles 4 and laser generator 5, glass nanotubes 1 is a cylindrical structure, and the tail is provided with a tip outlet; gold nanorods 2, liquid fluorocarbon 3 and PLGA nanoparticles 4 are arranged in the nanoglass tube, and gold nanorods 2 are arranged in the inner axis of the nanoglass tube; the laser generator 5 is set At the axis position outside the glass nanotube 1, the laser generator 5 is connected to the bottom of the glass nanotube 1; the glass nanotube 1 is a quartz glass nanotube 1; the outlet diameter of the glass nanotube 1 is 20nm; the concentration of the gold nanorod 2 100ug / ml; the glass nanotube 1 is also provided with a photoacoustic imager connected to the glass nanotube 1 .

[0022] Heat is the disordered movement of molecular microcosm, which is rel...

Embodiment 2

[0025] It is basically the same as in Example 1, except that the outlet diameter of the glass nanotube 1 is 100 nm.

Embodiment 3

[0027] Basically the same as embodiment 1, the difference is: as image 3 As shown, the thruster body is provided with more than two nozzles, and the nozzles are arranged in an array. Installing an array of nozzles on a satellite can provide greater thrust and control the different directions of the satellite.

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Abstract

The invention discloses a micro-propeller based on phase change. The micro-propeller based on phase change comprises a propeller body and nozzles. Each of the nozzles comprises a glass nanotube, a gold nanorod, liquid fluorocarbon, PLGA nanoparticles and a laser generator. The glass nanotube is of a cylindrical structure, and a tip outlet is formed in the tail portion; the gold nanorod, liquid fluorocarbon and PLGA nanoparticles are arranged in the glass nanotube, and the gold nanorod is arranged on an axis portion of the glass nanotube; the laser generator is arranged in the axis position out of the glass nanotube, and the laser generator is connected to the bottom of the glass nanotube. By controlling the diameter of the outlet of the glass micro and nanotube, the jet flow is controlled, and meanwhile, in a liquid condition, as a result of surface tension, the liquid fluorocarbon is kept not leaked; the vaporizing rate of the liquid fluorocarbon is controlled by controlling the power of the laser generator so as to control the propelling speed of the propeller, so that a mini satellite operates at different rates; the nozzles are mounted in array on the satellite, so that a huger thrust can be provided and different directions of the satellite can be controlled.

Description

technical field [0001] The invention relates to the field of micro-propellers, in particular to a micro-propeller based on phase change. Background technique [0002] At present, the driving methods of the propeller include piezoelectric ceramic drive, electroosmotic flow, thermal bubble drive, etc. The piezoelectric ceramic drive uses the action of pulse voltage on the piezoelectric ceramic to make the liquid squeezed and ejected. This injection method requires The voltage changes direction periodically; the electroosmotic flow drives the liquid injection, which uses the directional movement of the charged liquid in the electric field to promote the liquid to be ejected. This driving method requires the liquid to be a charged liquid, and due to the influence of surface tension, the threshold voltage is generally at Above 3kV; hot air bubble driving uses resistance heating to generate air bubbles in the liquid, the air bubbles burst, and the liquid is ejected. This driving m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03H99/00
CPCF03H99/00
Inventor 沙菁张仕昭陈云飞莫景文于弘扬张帅
Owner SOUTHEAST UNIV