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    • 1. 发明授权
    • Four wheel air cycle machine
    • 四轮空气循环机
    • US5309735A
    • 1994-05-10
    • US96712
    • 1993-07-23
    • John F. Maher, Jr.Brent J. MerrittChristopher McAuliffePaul J. Dziorny
    • John F. Maher, Jr.Brent J. MerrittChristopher McAuliffePaul J. Dziorny
    • B64D13/00F01D25/22F25B9/00F25D9/00
    • B64D13/00F01D25/22F25B9/004Y02T50/672
    • An air cycle machine (10) has four wheels mounted on a common shaft (20) for rotation therewith about a longitudinal axis (12), including a second stage turbine rotor (30) mounted to a first end (20a) of the shaft, a fan rotor (40) mounted to a second end (20b) of the shaft, a first stage turbine rotor (50) mounted to a central portion (20c) of the shaft, a compressor rotor (60) mounted to the central portion of the shaft in back to back relation to the first stage turbine rotor, the first and second stage turbine rotors being operative to extract energy from a flow of compressed air for driving the shaft (20), and the fan rotor (40) and the compressor rotor (60), in rotation about the axis, and first and second hydrodynamic gas film foil bearings (70, 80) for supporting the shaft for rotation about the longitudinal axis (12).
    • 空气循环机(10)具有安装在公共轴(20)上的四个轮子,用于围绕纵向轴线(12)旋转,该纵向轴线包括安装在该轴的第一端部(20a)上的第二级涡轮机转子(30) 安装在所述轴的第二端(20b)上的风扇转子(40),安装在所述轴的中心部分(20c)上的第一级涡轮机转子(50),安装在所述轴的中心部分 所述轴与所述第一级涡轮机转子背靠背关联,所述第一级和第二级涡轮转子可操作以从用于驱动所述轴(20)的压缩空气流中提取能量,并且所述风扇转子(40)和所述压缩机 转子(60),以及围绕纵向轴线(12)旋转的轴的第一和第二流体动力气体膜箔片轴承(70,80)。
    • 2. 发明授权
    • Turbine bypass working fluid admission
    • 涡轮旁路工作液进入
    • US5311749A
    • 1994-05-17
    • US862883
    • 1992-04-03
    • Christopher McAuliffeJohn F. Maher, Jr.
    • Christopher McAuliffeJohn F. Maher, Jr.
    • B64D13/00F02C3/32F25D9/00F01D17/00
    • B64D13/00F02C3/32
    • An air cycle machine (10) has a first stage turbine (60) mounted to a central portion of a common shaft (12), a compressor (50) mounted to the central portion of the shaft (12), a second stage turbine (30) mounted to a first end of the shaft (12), and a fan (40) mounted to a second end of the shaft (12), all for rotation therewith about a longitudinal axis (14). The first and second stage turbines (60, 30) are operative to extract energy from a flow of compressed air for driving the shaft (12), and the fan (40) and the compressor (50), in rotation about the axis (14). A bypass air discharge nozzle (20) is disposed coaxially with the turbine shroud (32) of the outboard turbine (30) at the outlet (134) thereof or downstream thereof at the discharge end (38) of the turbine diffuser (36) so as to receive in a central region the turbine exhaust (3 ) discharging from the turbine (30) and to define an annular flow inlet (28) through which a flow of bypass air (5) is directed into an outer circumferential region thereof to flow substantially parallel to and about the cooled expanded conditioning air exhaust flow (3) discharged from the turbine (30).
    • 空气循环机(10)具有安装在公共轴(12)的中心部分的第一级涡轮(60),安装在轴(12)的中心部分的压缩机(50),第二级涡轮 安装到所述轴(12)的第一端的风扇(40),以及安装到所述轴(12)的第二端的风扇(40),所述风扇(40)全部为围绕纵向轴线(14)旋转。 第一和第二级涡轮机(60,30)可操作以从用于驱动轴(12)的压缩空气流提取能量,并且风扇(40)和压缩机(50)围绕轴线(14)旋转 )。 旁通空气排出喷嘴(20)与涡轮机(30)的涡轮机罩(32)在其出口(134)处或涡轮扩散器(36)的排出端(38)的下游同轴设置,因此 在中心区域中接收从涡轮机(30)排出并且限定环形流入口(28)的涡轮机排气(3),旁路空气(5)的流动通过该环形流入口进入其外周区域以流动 基本平行于和绕过从涡轮机(30)排出的冷却的膨胀调节排气流(3)。