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公开(公告)号：US07757502B2
公开(公告)日：2010-07-20
申请号：US11103847
申请日：2005-04-12
CPC分类号： F02C7/32 , B64D13/06 , B64D41/007 , F02C6/18 , F04D27/004 , F04D29/0513 , F04D29/057 , F05D2220/62 , F05D2220/76 , F05D2240/52 , F05D2240/53 , Y02T50/56
摘要： An environmental control system includes a RAM air fan system downstream of a respective heat exchanger in the relatively high temperature RAM exhaust. The RAM air fan includes a RAM air fan electric motor such that the RAM air fan is driven at a speed independent of an air cycle machine. A fan rotor is completely supported by hydrodynamic foil journal and thrust bearings. As the RAM air fan is driven by the RAM air fan electric motor the RAM air fan is installed in the environmental control system as a self-contained system.
摘要翻译： 环境控制系统包括在相对高温的RAM排气中相应热交换器下游的RAM空气风扇系统。 RAM风扇包括RAM风扇电动机，使得RAM风扇以独立于空气循环机的速度被驱动。 风机转子完全由流体动力箔轴颈和止推轴承支撑。 随着RAM风扇由RAM风扇电动机驱动，RAM风扇作为独立系统安装在环境控制系统中。
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公开(公告)号：US07402020B2
公开(公告)日：2008-07-22
申请号：US11302712
申请日：2005-12-14
CPC分类号： F04D29/0513 , F04D25/04 , F04D29/584 , F05D2260/6022
摘要： An air cycle machine includes a housing having a compressor housing portion. A shaft is supported by the housing and includes a thrust runner. A hydrodynamic thrust bearing is arranged adjacent to the thrust runner and includes upstream and downstream sides. A compressor rotor is mounted on the shaft. A seal is arranged between the compressor rotor and the compressor housing portion. An orifice is provided in the compressor housing portion at the downstream side of the hydrodynamic bearing. The orifice vents hot compressed air that may leak past the seal prior to reaching the hydrodynamic thrust bearing.
摘要翻译： 一种空气循环机包括具有压缩机壳体部分的壳体。 轴由壳体支撑并且包括推力滑轮。 流体动力推力轴承设置在推力滑轮附近，并包括上游侧和下游侧。 压缩机转子安装在轴上。 在压缩机转子和压缩机壳体部分之间设置密封件。 在流体动力轴承的下游侧的压缩机壳体部分设置有孔口。 孔口通向可能在达到流体动力推力轴承之前可能经过密封件泄漏的热压缩空气。
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公开(公告)号：US20070134105A1
公开(公告)日：2007-06-14
申请号：US11302712
申请日：2005-12-14
IPC分类号： F04B17/00
CPC分类号： F04D29/0513 , F04D25/04 , F04D29/584 , F05D2260/6022
摘要： An air cycle machine includes a housing having a compressor housing portion. A shaft is supported by the housing and includes a thrust runner. A hydrodynamic thrust bearing is arranged adjacent to the thrust runner and includes upstream and downstream sides. A compressor rotor is mounted on the shaft. A seal is arranged between the compressor rotor and the compressor housing portion. An orifice is provided in the compressor housing portion at the downstream side of the hydrodynamic bearing. The orifice vents hot compressed air that may leak past the seal prior to reaching the hydrodynamic thrust bearing.
摘要翻译： 一种空气循环机包括具有压缩机壳体部分的壳体。 轴由壳体支撑并且包括推力滑轮。 流体动力推力轴承设置在推力滑轮附近，并包括上游侧和下游侧。 压缩机转子安装在轴上。 在压缩机转子和压缩机壳体部分之间设置密封件。 在流体动力轴承的下游侧的压缩机壳体部分设置有孔口。 孔口通向可能在达到流体动力推力轴承之前可能经过密封件泄漏的热压缩空气。
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