公开(公告)号：US20160201952A1

公开(公告)日：2016-07-14

申请号：US14991247

申请日：2016-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Hojong JEONG ,  Kwangho SHIN ,  Minho CHUNG ,  Song CHOI

IPC: F25B13/00

CPC classification number: F25B13/00 ,  F25B27/02 ,  F25B47/02 ,  F25B2400/05 ,  F25B2400/06 ,  Y02A30/274

Abstract: An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include at least one indoor device; an electric heat pump (EHP) outdoor device connected to the at least one indoor device, configured to drive a first compressor using electric power, and having a first outdoor heat exchanger for heat exchange with a refrigerant; a gas heat pump (GHP) outdoor device connected in parallel with the EHP outdoor device, connected to the at least one indoor device, and having an engine configured to drive a second compressor using a burned gas, a second outdoor heat exchanger for heat exchange with the refrigerant, and a waste heat exchanger configured to exchange heat with the refrigerant using waste heat of the engine; and a controller configured to control a warming operation or a defrosting operation of the EHP outdoor device and the GHP outdoor device, and to supply a high pressure refrigerant from the second compressor of the GHP outdoor device to the EHP outdoor device while the EHP outdoor device performs the defrosting operation.

Abstract translation: 提供一种空调和一种空调控制方法。 空调器可以包括至少一个室内装置; 与所述至少一个室内机连接的电热泵（EHP）室外机，构成为利用电力驱动第一压缩机，具有与制冷剂进行热交换的第一室外热交换器; 与EHP室外机并联连接的气体热泵（GHP）室外机，与所述至少一个室内机连接，具有使用燃烧气体驱动第二压缩机的发动机，第二室外热交换器 以及废热交换器，其构造成使用发动机的余热与制冷剂进行热交换; 以及控制器，其被配置为控制所述EHP室外机和GHP室外机的加温运转或除霜运转，并且将所述GHP室外机的所述第二压缩机的高压制冷剂供给到所述EHP室外机， 执行除霜操作。

公开(公告)号：US20160187041A1

公开(公告)日：2016-06-30

申请号：US14904283

申请日：2014-11-25

Applicant: MAYEKAWA MFG. CO., LTD.

Inventor： Choiku YOSHIKAWA ,  Takeshi KAMIMURA ,  Takahiro FURUDATE ,  Shuji FUKANO

IPC: F25B47/02 ,  F25B49/02 ,  F25B7/00 ,  F25B9/00

CPC classification number: 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

Abstract: A sublimation defrost system for a refrigeration apparatus including: a cooling device in a freezer, and includes a casing containing a heat exchanger pipe; a refrigerating device for cooling and liquefying a CO2 refrigerant; and a refrigerant circuit connected to the heat exchanger pipe permitting the cooled and liquefied CO2 refrigerant to circulate. The defrost system includes: a dehumidifier device; a CO2 circulation path in the heat exchanger pipe, an on-off valve in the heat exchanger; a circulating unit for the CO2 refrigerant; a first heat exchanger part exchanging heat between a brine as a first heating medium and the circulating CO2 refrigerant; and a pressure adjusting unit for the circulating CO2 refrigerant during defrosting so that a condensing temperature of the CO2 refrigerant becomes equal to or lower than a freezing point of a water vapor in the freezer inner air without a drain receiving unit.

Abstract translation: 1.一种用于制冷装置的升华除霜系统，包括：冷冻装置中的冷却装置，并且包括容纳热交换管的壳体; 用于冷却和液化CO2制冷剂的制冷装置; 以及连接到允许冷却和液化的CO 2制冷剂循环的热交换管的制冷剂回路。 除霜系统包括：除湿装置; 热交换器管中的CO2循环路径，热交换器中的开关阀; 用于CO2制冷剂的循环单元; 第一热交换器部分在作为第一加热介质的卤水和循环的CO 2制冷剂之间进行热交换; 以及用于在除霜期间循环CO 2制冷剂的压力调节单元，使得CO 2制冷剂的冷凝温度等于或低于没有排水接收单元的冷冻机内部空气中的水蒸气的凝固点。

公开(公告)号：US09341405B2

公开(公告)日：2016-05-17

申请号：US13690463

申请日：2012-11-30

Applicant: Lennox Industries Inc.

Inventor： Yi Qu ,  H. Gene Havard ,  Jon Douglas ,  Jeff Mangum

IPC: F25D21/02 ,  F25D17/06 ,  F25D21/00 ,  F25B47/02 ,  F24F11/00

CPC classification number: F25D21/02 ,  F24F11/30 ,  F24F11/41 ,  F24F11/42 ,  F25B13/00 ,  F25B47/02 ,  F25B2313/0294 ,  F25B2700/11 ,  F25B2700/15 ,  F25B2700/173 ,  F25B2700/19 ,  F25B2700/21174 ,  F25D17/06 ,  F25D21/002 ,  F25D21/006

Abstract: In various implementations, frost in a vapor compression system may be controlled. A property of a fan may be determined. A determination may be made whether a frost event and/or a nonfrost event has occurred based at least partially on the determined fan property.

Abstract translation: 在各种实施方案中，可以控制蒸气压缩系统中的霜。 可以确定风扇的属性。 可以至少部分地基于确定的风扇属性来确定是否已经发生了霜冻事件和/或非霜冻事件。

公开(公告)号：US20150338145A1

公开(公告)日：2015-11-26

申请号：US14719812

申请日：2015-05-22

Applicant: LG ELECTRONICS INC.

Inventor： Kidong KIM ,  Jongchul HA ,  Jiwon CHANG ,  Hyunjong KIM

IPC: F25B49/02 ,  F25B6/02 ,  F25B30/02 ,  F25D21/12

CPC classification number: F25B49/022 ,  F25B6/02 ,  F25B7/00 ,  F25B13/00 ,  F25B30/02 ,  F25B47/02 ,  F25B49/02 ,  F25B2313/0254 ,  F25B2600/0251 ,  F25D21/12

Abstract: A heat pump includes a first cycle device and a second cycle device. The first cycle device is connected such that, in a heating operation, a first refrigerant is circulated in an order of a first compressor, a 4-way valve, a first heat exchanger, a second heat exchanger, a first expansion mechanism, a third heat exchanger, the 4-way valve, and the first compressor, and such that, in a cooling operation, the first refrigerant is circulated in an order of the first compressor, the 4-way valve, the third heat exchanger, the first expansion mechanism, the second heat exchanger, the first heat exchanger, the 4-way valve, and the first compressor. The second cycle device is connected such that a second refrigerant is circulated in an order of a second compressor, a fourth heat exchanger, a second expansion mechanism, the second heat exchanger, and the second compressor.

Abstract translation: 热泵包括第一循环装置和第二循环装置。 连接第一循环装置，使得在制热运转中，第一制冷剂按照第一压缩机，四通阀，第一热交换器，第二换热器，第一膨胀机构，第三换热器 热交换器，四通阀和第一压缩机，并且在冷却运转中，第一制冷剂按照第一压缩机，四通阀，第三换热器，第一膨胀器的顺序循环 机构，第二热交换器，第一热交换器，四通阀和第一压缩机。 第二循环装置被连接成使得第二制冷剂按照第二压缩机，第四热交换器，第二膨胀机构，第二热交换器和第二压缩机的顺序循环。

公开(公告)号：US20150059375A1

公开(公告)日：2015-03-05

申请号：US14535406

申请日：2014-11-07

Applicant: DENSO CORPORATION

Inventor： Mitsuyo Oomura ,  Hiroyuki Hayashi ,  Yukihiko Takeda ,  Yoshinori Ichishi

IPC: F25D21/00 ,  F25B30/02

CPC classification number: F25D21/004 ,  B60H1/00785 ,  B60H1/00921 ,  B60H1/321 ,  B60H2001/3266 ,  F25B6/04 ,  F25B30/02 ,  F25B41/04 ,  F25B47/02

Abstract: An air conditioner for a vehicle includes a vapor compression refrigeration cycle switchable between a heat pump cycle and a cooler cycle, a heat core configured to heat air to be blown into a vehicle compartment by using coolant of an engine of the vehicle as a heat source, and a controller configured to control operation of the vapor compression refrigeration cycle. The controller controls the vapor compression refrigeration cycle to be operated as the cooler cycle so as to perform a defrosting control of the outdoor heat exchanger, and outputs an operation request signal to the engine, when the controller determines that the outdoor heat exchanger is frosted.

Abstract translation: 一种用于车辆的空调器包括可在热泵循环和冷却器循环之间切换的蒸汽压缩制冷循环，热芯构造成通过使用车辆的发动机的冷却剂作为热源来加热要吹入车厢的空气 以及配置为控制蒸气压缩式制冷循环的运转的控制器。 控制器控制蒸汽压缩制冷循环作为冷却器循环，以便执行室外热交换器的除霜控制，并且当控制器确定室外热交换器结霜时，向发动机输出操作请求信号。

公开(公告)号：US20140223933A1

公开(公告)日：2014-08-14

申请号：US14346009

申请日：2012-09-07

Applicant: Carrier Corporation

Inventor： John T. Steele ,  Benjamin E. Ferguson

IPC: B60H1/00 ,  B60H1/32 ,  F25B27/02 ,  B60H1/04

CPC classification number: B60H1/00014 ,  B60H1/00378 ,  B60H1/0045 ,  B60H1/3232 ,  F25B25/005 ,  F25B27/00 ,  F25B27/02 ,  F25B40/00 ,  F25B40/02 ,  F25B47/02 ,  F25B47/022 ,  F25B2327/001 ,  F25B2400/0403 ,  Y02A30/274

Abstract: A transport refrigeration system includes a transport refrigeration unit having a refrigerant circuit through which a refrigerant is circulated in heat exchange relationship with air drawn from a cargo box, a fuel-fired engine for powering the refrigeration unit and having an exhaust system through which exhaust gases generated by the engine are discharged and an engine coolant circuit, an engine exhaust gases to engine coolant heat exchanger, and an engine coolant circuit to refrigeration unit heat exchanger.

Abstract translation: 运输制冷系统包括运输制冷单元，其具有制冷剂回路，制冷剂通过该制冷剂回路与从货箱吸入的空气以热交换关系循环，用于为制冷单元供电的燃料发动机，并具有排气系统，排气系统 发动机产生的排气和发动机冷却剂回路，发动机将废气排放到发动机冷却剂热交换器和发动机冷却剂回路到制冷单元热交换器。

公开(公告)号：US08616017B2

公开(公告)日：2013-12-31

申请号：US13263607

申请日：2009-05-08

Applicant: Yusuke Shimazu ,  Keisuke Takayama ,  Koji Yamashita ,  Hiroyuki Morimoto ,  Shinichi Wakamoto

Inventor： Yusuke Shimazu ,  Keisuke Takayama ,  Koji Yamashita ,  Hiroyuki Morimoto ,  Shinichi Wakamoto

IPC: F25B7/00

CPC classification number: F24F3/065 ,  F24F3/001 ,  F24F11/42 ,  F24F11/84 ,  F24F2221/54 ,  F25B13/00 ,  F25B25/005 ,  F25B47/02 ,  F25B2313/0231 ,  F25B2313/02342 ,  F25B2313/0272 ,  F25B2313/02741

Abstract: A first cycle, in which a first medium is circulated, employs a compressor, a first heat exchanger structured with an air heat exchanger, a second heat exchanger, and a third heat exchanger. A second cycle, in which a second medium is circulated and heat is exchanged with the first medium through the second heat exchanger, employs indoor units, each having a fan. A third cycle, in which the second medium is circulated and heat is exchanged with the first medium through the third heat exchanger, shares the indoor units with the second cycle. Flow path switching valves switch flow paths between the second cycle and third cycle. Before the first heat exchanger is defrosted, a halted indoor unit is filled with the second medium in the third cycle with its fan being halted. The third heat exchanger functions as an evaporator during a defrosting operation.

Abstract translation: 其中第一介质循环的第一循环采用压缩机，由空气热交换器构成的第一热交换器，第二热交换器和第三热交换器。 第二循环，其中第二介质循环并且通过第二热交换器与第一介质进行热交换，使用各自具有风扇的室内单元。 在第二循环中，第二介质循环并且通过第三热交换器与第一介质进行热交换，在第二循环中共享室内单元。 流路切换阀在第二循环和第三循环之间切换流路。 在第一热交换器被除霜之前，停止的室内机在第三循环中填充第二介质，其风扇被停止。 在除霜操作期间，第三热交换器用作蒸发器。

公开(公告)号：US08549867B2

公开(公告)日：2013-10-08

申请号：US12610527

申请日：2009-11-02

Applicant: Carl T. Crawford ,  Robert B. Uselton ,  Bruce Perkins

Inventor： Carl T. Crawford ,  Robert B. Uselton ,  Bruce Perkins

IPC: F25D21/06 ,  F25B13/00

CPC classification number: F25B13/00 ,  F25B30/02 ,  F25B47/02 ,  F25B2400/0401 ,  Y10T29/49359

Abstract: A heat pump system includes a controller and a closed system that includes a condensing heat exchanger coil, an evaporating heat exchanger coil, a refrigerant and a compressor. The compressor is configured to compress the refrigerant, thereby causing the refrigerant to have a greater pressure in the condensing heat exchanger coil than in the evaporating heat exchanger coil. The controller is configured to perform a passive defrost of the evaporating heat exchanger coil. The passive defrost includes disabling the compressor and providing a bypass path between the condensing and evaporating heat exchanger coils that bypasses the compressor. The bypass path allows the refrigerant to flow from the condensing heat exchanger coil to the evaporating heat exchanger coil while the compressor is disabled.

Abstract translation: 热泵系统包括控制器和包括冷凝热交换器盘管，蒸发热交换器盘管，制冷剂和压缩机的封闭系统。 压缩机被构造成压缩制冷剂，从而使制冷剂在冷凝热交换器盘管中具有比在蒸发热交换器盘管中更大的压力。 控制器被配置为执行蒸发热交换器线圈的无源除霜。 被动除霜包括禁用压缩机并在绕过压缩机的冷凝和蒸发换热器线圈之间提供旁路。 在压缩机被禁用的同时，旁通路径允许制冷剂从冷凝热交换器盘管流到蒸发热交换器盘管。

公开(公告)号：US20130192280A1

公开(公告)日：2013-08-01

申请号：US13754501

申请日：2013-01-30

Applicant: LG ELECTRONICS INC.

Inventor： Dongseok KIM ,  Sungsub LEE ,  Taehee LEE ,  Jungwook BAE

IPC: F25D21/06

CPC classification number: F25D21/06 ,  F25B47/02 ,  F25B2400/19 ,  F25B2600/0251 ,  F25B2600/112 ,  F25B2600/2513 ,  F25B2600/2519 ,  F25D21/08 ,  Y02B30/743

Abstract: A refrigerator according to the present invention includes a compressor compressing a coolant, a condenser condensing the coolant compressed in the compressor, an expander through which the coolant condensed in the condenser passes, an evaporator evaporating the coolant expanded in the expander and cooling an inside of the refrigerator, a defroster defrosting the evaporator, a coolant adjusting valve adjusting the coolant flowing from the condenser to the evaporator, and a controller driving the compressor and turning on the defroster after closing the coolant adjusting valve. The refrigerator may minimize power consumed for defrosting and the defrosting time.

Abstract translation: 根据本发明的冰箱包括压缩冷却剂的压缩机，冷凝在压缩机中压缩的冷却剂的冷凝器，冷凝器中冷凝的冷凝器通过的膨胀器，蒸发膨胀机中膨胀的冷却剂并冷却内部 冰箱，解冻蒸发器的除霜器，调节从冷凝器流向蒸发器的冷却剂的冷却剂调节阀，以及在关闭冷却剂调节阀之后驱动压缩机并打开除霜器的控制器。 冰箱可以最大限度地减少除霜消耗的功率和除霜时间。

公开(公告)号：US20130086929A1

公开(公告)日：2013-04-11

申请号：US13704314

申请日：2011-06-29

Applicant: Ramond L. Senf, JR.

Inventor： Ramond L. Senf, JR.

IPC: F25B47/02

CPC classification number: F25B47/02 ,  F25B2700/2117 ,  F25B2700/21172 ,  F25D21/006

Abstract: A method is disclosed for controlling initiation of a defrost cycle of an evaporator heat exchanger of a refrigeration system operatively associated with a refrigerated transport cargo box. The method includes the steps of establishing an return air-saturation temperature differential equal to the difference of a sensed air temperature of an air flow returning from the cargo box to pass over the heat exchange surface of the evaporator heat exchanger minus a refrigerant saturation temperature of a flow of refrigerant passing through the evaporator heat exchanger, comparing the return air-saturation temperature differential to a set point threshold defrost temperature differential, and if the return air-saturation temperature differential exceeds the set point threshold defrost temperature differential, initiating a defrost cycle for defrosting the evaporator heat exchanger.

Abstract translation: 公开了一种用于控制与冷藏运输货箱可操作地相关联的制冷系统的蒸发器热交换器的除霜循环的启动的方法。 该方法包括以下步骤：建立等于从货物箱返回的气流的感测空气温度与蒸发器热交换器的热交换面之间的感测空气温度的差的回空气饱和温度差减去制冷剂饱和温度 通过蒸发器热交换器的制冷剂流，将返回空气饱和温差与设定点阈值除霜温差进行比较，如果返回空气饱和温差超过设定点阈值除霜温差，则开始除霜循环 用于除霜蒸发器热交换器。