PATR发动机关键技术与性能提升途径初探

PATR engine is a combined propulsion system which aims at high speed delivery platform in near space and TSTO horizontal take-off launcher. Because of wide working range, less modal conversion, high thrust weight ratio and superior performance, PATR is a important research direction of combined cycle. The PATR propulsion system and it’s characteristic are introduced, the critical technologies affecting system development are analyzed, including system design, efficient heat transfer, high performance turbomachinery, materials and processes. On this basis, the ways to improve the performance are proposed, such as optimizing system scheme and component parameters.