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公开(公告)号：US20240318879A1
公开(公告)日：2024-09-26
申请号：US18736015
申请日：2024-06-06
发明人： Soonjae PYO
摘要： A heat pump system in which a heat source is air, and may include: a compressor configured to compress a refrigerant, a first heat exchanger configured to exchange heat between the refrigerant and air, a second heat exchanger configured to exchange heat between the refrigerant and water, a first refrigerant pipe configured to discharge the refrigerant heat exchanged in the first heat exchanger during a defrosting operation for the first heat exchanger, and a second refrigerant pipe configured to guide the refrigerant from the first refrigerant pipe to the second heat exchanger. The heat pump system may further include: a third refrigerant pipe configured to discharge the refrigerant heat exchanged in the second heat exchanger after flowing into the second heat exchanger through the second refrigerant pipe, a first water pipe configured to supply water to be heat exchanged in the second heat exchanger, a second water pipe configured to return the water heat exchanged in the second heat exchanger, a bypass pipe connecting the first refrigerant pipe and the third refrigerant pipe and configured to bypass the second heat exchanger, and a third heat exchanger configured to heat exchange the refrigerant guided by the bypass pipe with the water flowing in the second water pipe, during the defrosting operation.
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公开(公告)号：US11802723B2
公开(公告)日：2023-10-31
申请号：US17616378
申请日：2019-08-23
CPC分类号： F25B47/02 , F25B49/022 , F25D21/002 , F25D21/12
摘要： In an air-conditioning apparatus, a first flow passage selection device and a second flow passage selection device each are a constant-energized-type three-way valve in which a position of a main valve can be fixed in a de-energized state. When the refrigerant circuit is switched to the cooling circuit by a flow switching device, when at least one of the first flow passage selection device and the second flow passage selection device is in a de-energized state, the first flow passage selection device or the second flow passage selection device in the de-energized state is configured to output refrigerant discharged from the compressor and input therein via the flow switching device and the bypass pipe to a corresponding one of an upper-side outdoor heat exchanger and a lower-side outdoor heat exchanger.
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公开(公告)号：US20230194134A1
公开(公告)日：2023-06-22
申请号：US17926064
申请日：2021-05-28
CPC分类号： F25B39/024 , F25B13/00 , F28F3/12 , F25D21/12
摘要： A heat exchanger module includes a skin condenser and a skin evaporator. The skin condenser includes an inner condenser plate, an outer condenser plate coupled to the inner condenser plate and a condenser tube channel formed on one of the inner condenser plate and/or the outer condenser plate. The evaporator includes an inner evaporator plate, an outer evaporator plate coupled to the inner evaporator plate, and an evaporator tube channel formed on one of the inner evaporator plate and/or the outer evaporator plate. The heat exchanger also includes an insulation layer extending between the inner condenser plate and the inner evaporator plate. Each of the plates that form the skin condenser and/or evaporator can be formed from different materials and/or have different material thicknesses to reduce heat transfer through the insulation layer from the condenser to the evaporator while also promoting heat transfer through natural convection with surrounding air.
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公开(公告)号：US20180195789A1
公开(公告)日：2018-07-12
申请号：US15742372
申请日：2016-07-07
申请人： CARRIER CORPORATION
发明人： Michael Swab
CPC分类号： F25D21/12 , B60H1/3226 , B60H1/3232 , B60H2001/00961 , F25B47/02 , F25B2327/001 , F25D29/003
摘要： A transport refrigeration unit (26) includes a dedicated combustion engine system (56), an evaporator (50), and a de-frost heat exchanger (78) constructed and arranged to flow engine coolant in a heated state for defrosting the evaporator (50) when the dedicated combustion engine system (56) is not running. A method of operation may include running a defrost cycle of the unit (26) utilizing the heated coolant whether or not an associated internal combustion engine (66) of the unit (26) is running.
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公开(公告)号：US20180045444A1
公开(公告)日：2018-02-15
申请号：US15688918
申请日：2017-08-29
申请人： Evapco, Inc.
CPC分类号： F25B43/00 , F25B1/005 , F25B5/02 , F25B33/00 , F25B40/00 , F25B41/00 , F25B2400/05 , F25B2400/071 , F25B2400/13 , F25B2400/23 , F25B2700/1933 , F25B2700/197 , F25B2700/21151 , F25B2700/21175 , F25D13/00 , F25D21/12 , F25D23/006
摘要： A packaged, pumped liquid, recirculating refrigeration system with charges of 10 lbs or less of refrigerant per ton of refrigeration capacity. The compressor and related components are situated in a pre-packaged modular machine room, and in which the condenser is mounted on the machine room and the evaporator is close coupled to the pre-packaged modular machine room. Prior art large receiver vessels may be replaced with a single or dual phase cyclonic separator also housed in the pre-packaged modular machine room.
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公开(公告)号：US20170307265A1
公开(公告)日：2017-10-26
申请号：US15521346
申请日：2015-10-21
申请人： BSH HAUSGERAETE GMBH
CPC分类号： F25B30/06 , F24T10/30 , F25B13/00 , F25B23/00 , F25B39/04 , F25D21/04 , F25D21/12 , F25D21/14 , F25D23/12 , F25D2321/1412 , F28F13/00 , F28F13/06 , Y02E10/10
摘要： A refrigeration appliance includes a refrigeration circuit having a condenser and a heat circulation system for heating an element of the refrigeration appliance. The heat circulation system includes a heat conducting region. A heat exchanging element includes the condenser and the heat conducting region. The condenser and the heat conducting region in the heat exchanger element are thermally coupled in order to output heat from the refrigeration circuit to the heat conducting region of the heat circulation system.
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公开(公告)号：US09746221B2
公开(公告)日：2017-08-29
申请号：US14903870
申请日：2014-11-25
IPC分类号： F25B47/02 , F25D17/02 , F25B1/10 , F25B7/00 , F25D21/10 , F25B9/00 , F25B41/00 , F25B41/04 , F25B49/02 , F25D21/12 , F25D21/14 , F25B25/00 , F25B23/00
CPC分类号： F25B47/02 , F25B1/10 , F25B7/00 , F25B9/00 , F25B9/008 , F25B23/006 , F25B25/00 , F25B41/00 , F25B41/04 , F25B49/02 , F25B2339/047 , F25B2347/022 , F25B2400/072 , F25B2400/13 , F25D17/02 , F25D21/10 , F25D21/12 , F25D21/14
摘要： A defrost system includes: a cooling device in a freezer, and includes a casing, a heat exchanger pipe with a difference in elevation in the casing, and a drain receiver unit below the heat exchanger pipe; a refrigerating device to cool and liquefy CO2 refrigerant; and a refrigerant circuit for permitting the cooled and liquefied CO2 refrigerant to circulate to the heat exchanger pipe. The defrost system includes a bypass pipe of the heat exchanger pipe to form a CO2 circulation path; an on-off valve in the heat exchanger pipe to be closed during defrosting so that the CO2 circulation path is a closed circuit; a pressure adjusting unit for adjusting pressure of the CO2 refrigerant during defrosting; and a brine circuit as a first heating medium, in which the defrost system permits the CO2 refrigerant to naturally circulate in the closed circuit during defrosting by a thermosiphon effect.
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公开(公告)号：US09746219B2
公开(公告)日：2017-08-29
申请号：US14791033
申请日：2015-07-02
申请人： Evapco, Inc.
IPC分类号： F25B43/00 , F25B1/00 , F25D21/12 , F25B33/00 , F25B41/00 , F25D13/00 , F25D23/00 , F25B5/02 , F25B40/00
CPC分类号： F25B43/00 , F25B1/005 , F25B5/02 , F25B33/00 , F25B40/00 , F25B41/00 , F25B2400/05 , F25B2400/071 , F25B2400/13 , F25B2400/23 , F25B2700/1933 , F25B2700/197 , F25B2700/21151 , F25B2700/21175 , F25D13/00 , F25D21/12 , F25D23/006
摘要： A packaged, pumped liquid, recirculating refrigeration system with charges of 10 lbs or less of refrigerant per ton of refrigeration capacity. The compressor and related components are situated in a pre-packaged modular machine room, and in which the condenser is mounted on the machine room and the evaporator is close coupled to the pre-packaged modular machine room. Prior art large receiver vessels may be replaced with a single or dual phase cyclonic separator also housed in the pre-packaged modular machine room.
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公开(公告)号：US20170211871A1
公开(公告)日：2017-07-27
申请号：US15002445
申请日：2016-01-21
CPC分类号： F25D21/12 , F25B47/02 , F25B2400/01 , F25B2400/0411 , F25B2400/052 , F25B2400/054 , F25B2400/12 , F25D21/006 , F25D21/14 , F25D2500/02
摘要： The present subject matter provides a sealed system for an appliance. The sealed system includes a compressor operable to generate a flow of compressed refrigerant, an evaporator and a drain trough disposed below the evaporator. A bypass conduit fluidly couples a bypass valve and the evaporator. The bypass valve is configured for selectively directing refrigerant from a condenser around an expansion device to the evaporator. A portion of the bypass conduit is positioned at and connected to the drain trough. A related method for defrosting an evaporator is also provided.
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公开(公告)号：US20170131018A1
公开(公告)日：2017-05-11
申请号：US15348058
申请日：2016-11-10
申请人： LG ELECTRONICS INC.
发明人： Youngjae SHIN , Kwangsoo JUNG , Woocheol KANG , Geunhyung LEE
CPC分类号： F25D21/06 , F25B2400/01 , F25D21/065 , F25D21/08 , F25D21/10 , F25D21/12 , F25D21/125 , F28D1/0477 , F28D15/0266 , F28F1/32 , F28F17/00 , F28F19/006 , F28F2210/04 , F28F2215/04 , F28F2275/06
摘要： The present disclosure discloses a defrosting device, including a heating unit provided at a lower side of an evaporator, and configured to heat working fluid therein; and a plurality of heat pipes, both end portions of which are connected to an inlet and an outlet of the heating unit, respectively, and at least part of which are disposed adjacent to a cooling tube of the evaporator to emit heat to the cooling tube due to high temperature working fluid heated and transferred by the heating unit, wherein the plurality of heat pipes are configured with a first heat pipe and a second heat pipe disposed to form two rows on a front portion and a rear portion of the evaporator, respectively, and the first heat pipe and the second heat pipe are formed in different lengths.
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