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美国国家航空航天飞机计划取消后 ,为了维持高超声速技术的核心能力 ,于 1995年开始高超声速技术(HyTech)计划。HyTech重点放在扩大液体碳氢燃料超燃冲压发动机推进系统的技术基础上 ,而且在许多方面弥补类似的氢燃料高超声速计划 ,如 :Hyper X的不足。提出了与超燃冲压发动机有关的技术难题 ,包括进气道 /隔热段工作、燃烧室的工作和稳定性、喷管工作、材料改进、燃料系统研制以及一体化与适应性方面的工作。该计划论证了对超燃冲压发动机成功工作的关键技术 ,讨论了这些方面的研究现状和即将进行的工作。
Following the cancellation of the NASA program, the HyTech program was launched in 1995 to preserve the core capabilities of hypersonic technology. HyTech’s focus is on expanding the technology for liquid hydrocarbon-based scramjet propulsion systems and, in many ways, compensating for similar hydrogen-fuel hypersonic programs such as Hyper X’s. The technical problems related to scramjet are presented, including the work of inlet / heat insulation section, the work and stability of the combustion chamber, nozzle work, material improvement, fuel system development, integration and adaptability. The program demonstrated the key technologies for the successful operation of the scramjet and discussed the state of the art and the work to be done in these areas.