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1. 发明申请

US20210247115A1 ENHANCED METHOD OF LUBRICATION FOR REFRIGERATION COMPRESSORS 有权
公开(公告)号：US20210247115A1
公开(公告)日：2021-08-12
申请号：US17251062
申请日：2018-06-26
申请人： Carrier Corporation
发明人： Jeremy Wallet-Laily , Ulf J. Jonsson , Charbel Rahhal , Nicolas Fonte , Zaffir A. Chaudhry , David M. Rockwell , Amit Vaidya , Scott M. MacBain , Yifan Qiu , Benjamin J. Blechman
IPC分类号： F25B43/02 , F25B31/00
摘要： A refrigeration system includes a compressor for compressing a refrigerant, a condenser for cooling the refrigerant, an evaporator for heating the refrigerant, and a lubrication system for providing a lubricant mist to a movable component of the compressor. The lubrication system includes an ejector arranged in fluid communication with the compressor and the evaporator, wherein the lubricant mist is carried by the refrigerant to the movable component.

2. 发明授权

US10823467B2 Low-oil refrigerants and vapor compression systems 有权
公开(公告)号：US10823467B2
公开(公告)日：2020-11-03
申请号：US15563146
申请日：2016-03-30
申请人： Carrier Corporation
发明人： Ulf J. Jonsson , Zissis A. Dardas , Vishnu M. Sishtla , Daniel G. Goberman , Zaffir A. Chaudhry , Xia Tang , Susanne M. Opalka
IPC分类号： F25B31/00 , F25B1/053 , F25B1/10 , F25B25/00 , C10M171/00 , C09K5/04 , F04D29/059 , F04D29/063 , F04D17/12 , C10M105/38 , C10N20/00 , C10N30/06 , C10N40/30 , F04D17/10 , F04D25/06
摘要： A vapor compression system (20) has: a centrifugal compressor (22) having an inlet (40) and an outlet (42); and an electric motor (28) having a stator (30) and a rotor (32). A plurality of bearings (36) support the rotor. A refrigerant charge comprises a base refrigerant and one or more oils. The one or more oils are present at a total concentration of 80-5000 parts per million (ppm) by weight.

3. 发明授权

US10228168B2 Compressor bearing cooling 有权
公开(公告)号：US10228168B2
公开(公告)日：2019-03-12
申请号：US14779157
申请日：2014-02-19
申请人： Carrier Corporation
发明人： Ulf J. Jonsson , Vishnu M. Sishtla , Zaffir A. Chaudhry
IPC分类号： F25B31/00 , F04D29/063 , F04D29/58 , F25B1/053 , F25B41/00 , F04D25/06 , F04D29/056 , F25B25/00
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 bearing systems (66, 68) support the rotor (64) and/or the one or more impellers (44). One or more main drain passages (120, 234 206; 120, 232, 202, 206) are coupled to the bearings to pass fluid along a drain flowpath from the bearings to a location (172) upstream of the impeller and downstream of the IGV array.

4. 发明申请

US20180180332A1 HEAT TRANSFER SYSTEM WITH TRIBOFILM ON BEARING SURFACE 审中-公开
公开(公告)号：US20180180332A1
公开(公告)日：2018-06-28
申请号：US15737644
申请日：2016-06-16
申请人： CARRIER CORPORATION
发明人： Susanne M. Opalka , Xia Tang , Daniel G. Goberman , Ulf J. Jonsson , Zaffir A. Chaudhry
IPC分类号： F25B31/00 , F25B13/00 , F16C33/66 , C10M105/38 , C10M107/24 , C10M107/02 , C10M105/06 , C10M101/00 , C09K5/04
CPC分类号： F25B31/002 , C09K5/044 , C09K5/045 , C09K2205/126 , C09K2205/22 , C10M101/00 , C10M105/06 , C10M105/38 , C10M107/02 , C10M107/24 , C10M2203/065 , C10M2203/1006 , C10M2205/0206 , C10M2207/2835 , C10M2209/043 , C10N2240/30 , F04D29/023 , F04D29/059 , F04D29/063 , F05D2300/43 , F05D2300/51 , F05D2300/611 , F16C33/6688 , F16C2362/52 , F25B13/00 , F25B2400/07 , F25B2500/06 , F25B2500/16
摘要： A heat transfer system is disclosed that includes a circulation loop of a heat transfer fluid that comprises a halocarbon. The circulation loop includes a compressor or pump that includes bearing rolling surfaces in contact with the heat transfer fluid. The bearing contact surface has a substrate a layer thereon that includes a polymer or oligomer having polar side groups and a tribofilm.

5. 发明授权

US10781857B2 Hybrid bearings 有权
公开(公告)号：US10781857B2
公开(公告)日：2020-09-22
申请号：US16339116
申请日：2017-08-31
申请人： Carrier Corporation
发明人： Vishnu M. Sishtla , Ulf J. Jonsson , Zaffir A. Chaudhry
IPC分类号： F16C33/62 , F16C33/30 , F16C19/16 , F16C33/38
摘要： A bearing (20; 150; 152) comprises: an inner race (26); an outer race (28); and a plurality of rolling elements (30). The inner race comprises a nitrogen-alloyed steel (40). The outer race comprises a steel (42) with lower nitrogen content than said nitrogen-alloyed steel.

6. 发明申请

US20160054040A1 Compressor Bearing Cooling Via Purge Unit 审中-公开
标题翻译：压缩机轴承冷却通过吹扫单元
公开(公告)号：US20160054040A1
公开(公告)日：2016-02-25
申请号：US14784478
申请日：2014-04-15
申请人： CARRIER CORPORATION
发明人： Ulf J. Jonsson , Vishnu M. Sishtla , Zaffir A. Chaudhry
IPC分类号： F25B45/00 , F25B13/00
CPC分类号： F25B45/00 , F25B1/053 , F25B9/002 , F25B13/00 , F25B31/002 , F25B43/043 , F25B49/005 , F25B2500/26 , F25B2700/04
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.
摘要翻译：压缩机（22）具有具有吸入口（24），排出口（26）和电动机室（60）的壳体组件（40）。电动机（42）在电动机室内具有定子（62）和定子内的转子（64）。转子安装成围绕转子轴线（500）旋转。一个或多个工作叶轮（44）联接到转子，以在至少第一状态下由转子驱动，以便通过吸入口吸入流体并从排出口排出流体。入口导叶（IGV）阵列（174）位于吸入口（24）和一个或多个叶轮（44）之间。一个或多个轴承（66,68）支撑转子（64）和/或一个或多个叶轮（44）。净化单元（400）具有用于接收制冷剂流的蒸汽入口管线（410）和用于返回污染物贫乏的制冷剂流的返回管线（414,417A，417B）。用于向轴承供应制冷剂的供应流路（407A，407B）从吹扫单元延伸。

7. 发明申请

US20160040915A1 Compressor Bearing Cooling 审中-公开
标题翻译：压缩机轴承冷却
公开(公告)号：US20160040915A1
公开(公告)日：2016-02-11
申请号：US14779157
申请日：2014-02-19
申请人： Carrier Corporation
发明人： Ulf J. Jonsson , Vishnu M. Sishtla , Zaffir A. Chaudhry
IPC分类号： F25B31/00 , F04D29/58 , F04D25/06
CPC分类号： F25B31/006 , F04D25/06 , F04D29/056 , F04D29/063 , F04D29/582 , F04D29/5826 , F04D29/584 , F05D2260/602 , F25B1/053 , F25B25/005 , F25B31/008 , F25B41/00 , F25B2339/047 , F25B2341/0012 , F25B2341/0015 , F25B2400/13 , F25B2500/16
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 bearing systems (66, 68) support the rotor (64) and/or the one or more impellers (44). One or more main drain passages (120, 234 206; 120, 232, 202, 206) are coupled to the bearings to pass fluid along a drain flowpath from the bearings to a location (172) upstream of the impeller and downstream of the IGV array.
摘要翻译：压缩机（22）具有具有吸入口（24），排出口（26）和电动机室（60）的壳体组件（40）。电动机（42）在电动机室内具有定子（62）和定子内的转子（64）。转子安装成围绕转子轴线（500）旋转。一个或多个工作叶轮（44）联接到转子，以在至少第一状态下由转子驱动，以便通过吸入口吸入流体并从排出口排出流体。入口导叶（IGV）阵列（174）位于吸入口（24）和一个或多个叶轮（44）之间。一个或多个轴承系统（66,68）支撑转子（64）和/或一个或多个叶轮（44）。一个或多个主排水通道（120,234,206; 120,2232,202,206）联接到轴承，以将流体沿排水流路从轴承传递到叶轮上游的位置（172）并且在IGV的下游数组。

8. 发明授权

US11292987B2 Active filter for oil-free refrigerant compressor 有权
公开(公告)号：US11292987B2
公开(公告)日：2022-04-05
申请号：US16499714
申请日：2018-03-22
申请人： Carrier Corporation
发明人： Zissis A. Dardas , Ulf J. Jonsson , Ying She , Zaffir A. Chaudhry , Vishnu M. Sishtla
IPC分类号： C10M171/00 , F25B41/40 , C10M175/00 , F25B31/02 , C10N20/00 , C10N40/30 , C10N50/08 , C10N50/10
摘要： A compressor system includes a compressor including a compressor inlet, a compressor outlet, and a bearing assembly, the compressor configured to compress a heat transfer fluid. An additive dispenser is fluidly coupled to the compressor upstream of the bearing assembly. The additive dispenser is configured to controllably release a volume of an additive material into the heat transfer fluid, the additive material configured to lubricate the bearing assembly. A method of lubricating a bearing assembly of compressor includes locating a volume of additive material at an additive dispenser fluidly coupled to a compressor, dispensing a portion of the additive material into the flow of heat transfer fluid at a selected time, flowing the heat transfer fluid containing the additive material to a bearing assembly of the compressor, and lubricating the bearing assembly of the compressor with the additive material.

9. 发明申请

US20210189286A1 ACTIVE FILTER FOR OIL-FREE REFRIGERANT COMPRESSOR 有权
公开(公告)号：US20210189286A1
公开(公告)日：2021-06-24
申请号：US16499714
申请日：2018-03-22
申请人： Carrier Corporation
发明人： Zissis A. Dardas , Ulf J. Jonsson , Ying She , Zaffir A. Chaudhry , Vishnu M. Sishtla
IPC分类号： C10M171/00 , F25B31/02 , F25B41/40 , C10M175/00
摘要： A compressor system includes a compressor including a compressor inlet, a compressor outlet, and a bearing assembly, the compressor configured to compress a heat transfer fluid. An additive dispenser is fluidly coupled to the compressor upstream of the bearing assembly. The additive dispenser is configured to controllably release a volume of an additive material into the heat transfer fluid, the additive material configured to lubricate the bearing assembly. A method of lubricating a bearing assembly of compressor includes locating a volume of additive material at an additive dispenser fluidly coupled to a compressor, dispensing a portion of the additive material into the flow of heat transfer fluid at a selected time, flowing the heat transfer fluid containing the additive material to a bearing assembly of the compressor, and lubricating the bearing assembly of the compressor with the additive material.

10. 发明授权

US10480831B2 Compressor bearing cooling 有权
公开(公告)号：US10480831B2
公开(公告)日：2019-11-19
申请号：US14779155
申请日：2014-01-27
申请人： Carrier Corporation
发明人： Ulf J. Jonsson , Vishnu M. Sishtla , Zaffir A. Chaudhry
IPC分类号： F25B1/053 , F25B31/00 , F25B41/00 , F25B25/00
摘要： A vapor compression system (20) comprises a compressor (22) having one or more bearing systems (66, 68) supporting a rotor and/or one or more working elements (44). One or more bearing feed passages (114) are coupled to the bearings to pass fluid along a supply flowpath to the bearings. A mechanical pump (130; 330) is positioned to drive fluid along the supply flowpath. An ejector (140, 150) has a motive flow inlet (142, 152) coupled to the mechanical pump to receive refrigerant from the mechanical pump.

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