火箭推进2025，Vol.51Issue(2)：87-93,7.DOI:10.3969/j.issn.1672-9374.2025.02.009
基于3D打印的高性能HAN基单组元发动机喷注器
HAN-based monopropellant catalytic decomposition thrust chamber injector for additive manufacturing
徐丁欢 1孙策 1董佳磊 1党涵宇 1陈鸿麟2
作者信息
- 1. 西安航天动力研究所,陕西 西安 710100
- 2. 航天推进技术研究院,陕西 西安 710100
- 折叠
摘要
Abstract
In order to meet the demand of HAN(Hydroxylammonium nitrate)-based monopropellant catalytic decomposition thrust chamber for high performance injector,the integrated design of multi-cycle multi-nozzle injector based on 3D printing technology was studied.The heat transfer characteristics,flow resistance characteristics and thermal test characteristics of 3D printing injector were studied.The pressure loss coefficient of flow resistance calculation was put forward.The experimental results show that the flow resistance of 3D printing injector decreases with the increase of the total milling time,and the decreasing rate decreases gradually.The engine can be initiated reliably at room temperature.The decomposition efficiency reached 0.992 under high load.The engine ignition time increases with the decrease of the initial temperature and the consistency of ignition time can be improved by controlling the interval time.关键词
3D打印/喷注器/沿程损失系数Key words
additive manufacturing/injector/pressure loss coefficient分类
航空航天引用本文复制引用
徐丁欢,孙策,董佳磊,党涵宇,陈鸿麟..基于3D打印的高性能HAN基单组元发动机喷注器[J].火箭推进,2025,51(2):87-93,7.
