中国研究人员成功测试了一种可在飞行中改变形状的高超音速冲压发动机。
西北工业大学和北京动力机械研究所的研究人员完成了这项地面试验。他们使用石墨密封材料解决了长期存在的工程难题。
燃烧室喉部这一可移动金属部件在1650摄氏度高温气体环境下，仅用三分之一秒便完成了收缩和放松调整。
相关论文于5月28日发表在《推进技术》期刊上。该密封材料与美国国防工业所需相同。
中国完成可变形高超音速冲压发动机地面试验
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