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1.
公开(公告)号:WO1995027655A1
公开(公告)日:1995-10-19
申请号:PCT/US1995004289
申请日:1995-04-07
Applicant: ALLIEDSIGNAL INC.
Inventor: ALLIEDSIGNAL INC. , CLAEYS, Henry, M. , CLARKE, Kathrine, J. , MATULICH, Dan, S.
IPC: B64D41/00
CPC classification number: B64D41/00 , B64D13/06 , B64D2013/0611 , B64D2013/0644 , F02C6/08 , F05D2220/50 , Y02T50/56
Abstract: An environmental control system has an air cycle machine that includes a compressor (38), a cooling turbine (34), a motor/generator (36), and a power turbine (40) all mounted on a single shaft (32). The power turbine receives bleed air from the aircraft's engine (12) and has a variable geometry inlet nozzle (42) that adjusts the air flow rate therethrough without significant throttling. Downstream of the nozzle the power turbine extracts the expansion energy from the bleed air while cooling it. This is used to drive the other components of the air cycle machine, and in particular the motor/generator which generates electricity.
Abstract translation: 环境控制系统具有空气循环机,其包括全部安装在单个轴(32)上的压缩机(38),冷却涡轮机(34),电动机/发电机(36)和动力涡轮机(40)。 动力涡轮机从飞行器的发动机(12)接收排放空气,并且具有可变几何形状的入口喷嘴(42),其调节通过其中的空气流速而不会有明显的节流。 在喷嘴的下游,动力涡轮机从放气中提取膨胀能量同时冷却它。 这用于驱动空气循环机的其他部件,特别是发电的电机/发电机。