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引言由于液体单元推进剂的供给系统、燃烧室结构,调节过程以及地面准备工作等均较液体双组元推进剂的简单,所以这种推进剂早已广泛地应用在导弹和飞机上。例如美国的海蛇地空导弹采用硝酸异丙酯作为辅助能沅,苏联的宇宙号第二级РД-119火箭发动机采用偏二甲肼作为驱动涡轮的工质,而目前大量的姿控发动机是采用无水肼作为主能沅。近几年来,液体单元推进剂的应用则又有了更进一步的发展,例如报导了美国研制成功一种用于海军水中兵器动力系统第二代的低成本单元推进剂,
INTRODUCTION This type of propellant has long been used in missiles and aircraft because of the simplicity of the liquid bipropellant propulsion system, the combustion chamber structure, the conditioning process, and the preparation of the ground. For example, the U.S. sea snake surface-to-air missile uses isopropyl nitrate as an auxiliary energy source. The Soviet Cosmos II ER-119 rocket engine uses UDMH as the working fluid for driving turbines. At present, a large number of attitude control engines are used Hydrazine as the main energy Yuan. In recent years, the application of liquid unit propellant has further developed. For example, it reports that the United States has successfully developed a low-cost unit propellant for the second generation of underwater naval power system.