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2004年,GE公司和艾利逊公司首次提出自适应循环发动机(ACE)的概念,允许发动机改变其空气流量和单位推力,以适应于飞机超声速巡航、跨声速加速和亚声速巡航对发动机的性能要求,同时满足越来越严格的噪声要求。其独特之处在于它是在双外涵变循环基础上引入第三外涵流路(FLADE),该流路不仅可用于热管理和隐身等作用,还可进一步优化与进气道的匹配,从而减小甚至消除溢流阻力,并在一定程度上
In 2004, GE and Allison first proposed the concept of an adaptive cycle engine (ACE) that allows the engine to change its air flow and unit thrust to accommodate engine performance for aircraft supersonic cruise, transonic and subsonic cruise Requirements while meeting increasingly stringent noise requirements. Its uniqueness lies in its introduction of the third outer culvert flow path (FLADE) on the basis of the double outer deformation cycle, which can not only be used for thermal management and stealth and other functions, but also to further optimize the matching with the intake port, Thus reducing or even eliminating the overflow resistance, and to some extent