Research Progress on Pre-cooling Combined Propulsion
"Low-cost,high-speed,maneuverable,and reliable"space transportation with reusable aerospace vehicles is an inevitable trend in the future development of aerospace technology,which has created a strong demand for power systems that can operate efficiently across a wide range of speeds,large airspace,high specific impulse,and high thrust-to-weight ratio.Integrated propulsion system combines different modes of propulsion efficiently,fully leveraging the performance advantages of each type of power within its operating range to achieve outstanding comprehensive performance throughout the entire mission profile,making it an ideal power unit for advanced future aerospace vehicles.This paper focuses on the most promising combined propulsion systems,especially pre-cooled combined propulsion,summarizing their research progress,analyzing the characteristics of technological development and breakthroughs achieved,and proposing suggestions for the development of pre-cooling combined propulsion technology.
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