公开(公告)号：US20200240362A1

公开(公告)日：2020-07-30

申请号：US16696910

申请日：2019-11-26

申请人： Yancheng You ,  Zeyong Yin ,  Jianfeng Zhu ,  Yue Huang ,  Chengxiang Zhu ,  Liaoni Wu ,  Yiwei Dong

发明人： Yancheng You ,  Zeyong Yin ,  Jianfeng Zhu ,  Yue Huang ,  Chengxiang Zhu ,  Liaoni Wu ,  Yiwei Dong

IPC分类号： F02K7/16

摘要： A combined cycle propulsion system (CCPS) module combines a low-speed propulsion system (LSPS) such as a turbojet and a high-speed propulsion system (HSPS) such as dual mode ramjet engines with a mid-speed propulsion system (MSPS) such as a ejector ramjet engine to close a thrust gap between the upper operation limit of the LSPS and the lower operation limit of the HSPS in a flight vehicle. A cooling system ensures thermal protection of the non-operating LSPS during MSPS or HSPS operation by cooling tapped air from the MSPS or HSPS using a heat exchanger and expansion in a turbine/generator and directing cooled tapped air into the LSPS.