Non-toxic dual mode micropropulsion system and working method thereof

Abstract

The invention provides a non-toxic dual mode micropropulsion system and a working method thereof. The system comprises a thruster body, a neutralizer and a power processing unit; the power processingunit is connected with the neutralizer and the thruster body separately; the thruster body comprises a spray shell which is divided into a spray shell emission cavity and a spray shell storage cavitywhich are mutually independent; a spray ultrasonic vibration unit is arranged on the lower portion of the spray shell emission cavity; a spray electrostatic acceleration unit is arranged on the upperportion of the spray shell emission cavity; one end of a spray transport element stretches into the spray shell storage cavity, the other end of the spray transport element stretches into the spray shell emission cavity from the interior of the spray shell storage cavity and is connected with the spray ultrasonic vibration unit. The system has the following advantages that thrust ranges from microNewton to milliNewton, the specific impulse ranges from seconds to hundreds of seconds, the power ranged from a value smaller than one watt to multiple watt, the system can work in the two modes of ultrasonic spray and electrostatic spray, and the thrust ranging from micro Newton to milliNewton can be adjusted.

Description

technical field [0001] The invention relates to a non-toxic micro-propulsion system with a thrust of micro-newton to millineww and a power of less than 1 watt to several watts for a pina satellite, especially a non-toxic dual-mode micro-propulsion system and a working method thereof. Background technique [0002] The number of Pina satellites with a launch weight of 1 kg to 10 kg has increased rapidly in recent years, and their performance has continued to improve. However, most of the Pina satellites do not have a propulsion system, resulting in poor space maneuverability, short life, and greatly limited functions and performance. At the end of its lifespan, it cannot de-orbit and become space junk, which is not conducive to the space environment. [0003] The power of Pina satellites is generally in the order of watts, and the thrust required for tasks such as attitude control and orbit transfer is generally in the order of micronewtons to millinenewtons. [0004] At pres...

AI Technical Summary

Problems solved by technology

[0004] At present, the conventional chemical propulsion system and electric propulsion system used by satellites require a propellant supply system composed of pressure-resistant storage tanks, valves, pressure sensors, and pipelines. The system is complex, and the thrust is generally in the order of cattle, making miniaturization difficult

Hydrazine, dinitrogen tetroxide, monomethylhydrazine and other propellants commonly used in chemical propulsion systems are highly toxic, which is not conducive to use, maintenance and environmental protection

The power of conventional Hall and ion electric propulsion systems is generally on the order of hundreds of watts to kilowatts, and it is difficult to miniaturize to the order of watts, or the performance of the thruster is very poor after reaching the order of watts, making it difficult to use in engineering

Although the xenon propellant commonly used in electric propulsion is non-toxic, it is expensive, which limits its application to a certain extent

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