- 专利标题: Compressor bearing cooling via purge unit
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申请号: US14784478申请日: 2014-04-15
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公开(公告)号: US10539352B2公开(公告)日: 2020-01-21
- 发明人: Ulf J. Jonsson , Vishnu M. Sishtla , Zaffir A. Chaudhry
- 申请人: Carrier Corporation
- 申请人地址: US FL Palm Beach Gardens
- 专利权人: Carrier Corporation
- 当前专利权人: Carrier Corporation
- 当前专利权人地址: US FL Palm Beach Gardens
- 代理机构: Bachman & LaPointe, P.C.
- 国际申请: PCT/US2014/034097 WO 20140415
- 国际公布: WO2014/179032 WO 20141106
- 主分类号: F25B45/00
- IPC分类号: F25B45/00 ; F25B43/04 ; F25B13/00 ; F25B1/053 ; F25B9/00 ; F25B49/00 ; F25B31/00
摘要:
A compressor (22) has a housing assembly (40) with a suction port (24), a discharge port (26), and a motor compartment (60). An electric motor (42) has a stator (62) within the motor compartment and a rotor (64) within the stator. The rotor is mounted for rotation about a rotor axis (500). One or more working impellers (44) are coupled to the rotor to be driven by the rotor in at least a first condition so as to draw fluid in through the suction port and discharge the fluid from the discharge port. An inlet guide vane (IGV) array (174) is between the suction port (24) and the one or more impellers (44). One or more bearings (66, 68) support the rotor (64) and/or the one or more impellers (44). A purge unit (400) has a vapor inlet line (410) for receiving a refrigerant flow and a return line (414, 417A, 417B) for returning a contaminant-depleted refrigerant flow. A supply flowpath (407A, 407B) for supplying refrigerant to the bearings extends from the purge unit.
公开/授权文献
- US20160054040A1 Compressor Bearing Cooling Via Purge Unit 公开/授权日:2016-02-25