一种适用于超低轨道卫星的吸气式喷射推进装置

By employing a combination of a gas selective separation supply structure and a Hall-like thruster on ultra-low orbit satellites, the problem of oxygen damage to electrodes has been solved, gas utilization efficiency has been improved, and costs have been reduced, thus meeting the requirements of green aviation.

CN117842390BActive Publication Date: 2026-07-17INST OF MECHANICS CHINESE ACAD OF SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF MECHANICS CHINESE ACAD OF SCI
Filing Date
2024-02-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing ultra-low orbit air-breathing electric propulsion technology suffers from low efficiency and high cost when utilizing rarefied gases, as the oxygen content in the gas can damage components such as electrodes and neutralizers, making it difficult to meet the requirements of green aviation.

Method used

The gas selective separation supply structure is adopted to separate the inhaled gas into components and supply them to different gas supply channels through the ionization zone in the Hall thruster, avoiding direct contact between oxygen components and electrodes. Combined with the gas enrichment and transfer unit and the separation supply unit, the gas is separated and recombined by temperature and pressure differences, thereby improving utilization efficiency.

Benefits of technology

It effectively avoids component damage, improves gas utilization efficiency, reduces operating costs, and achieves efficient utilization of environmental gases.

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Abstract

本发明实施例公开了一种适用于超低轨道卫星的吸气式喷射推进装置,包括外部气体吸入结构和喷气式推进结构,以及连通设置于所述外部气体吸入结构和所述喷气式推进结构之间的气体选择性分离供给结构;其中,所述喷气式推进结构上形成有一个或多个供气通道;所述气体选择性分离供给结构用于将通过所述外部气体吸入结构吸入的气体按照组分分离成一组或多组后,选择性地供入对应的所述供气通道中。本发明通过超低轨道运行环境下,针对性地对气体收集分离,而后重组使用,避免了对设备和部件的损伤,在有效实现对周边环境的利用的前提下,能够有效提高利用效率,降低使用成本。
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