公开(公告)号：US20180073785A1

公开(公告)日：2018-03-15

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 ,  C09K5/04 ,  C10M105/38 ,  C10M171/00 ,  F04D29/063 ,  F04D29/059

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.

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.

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.