Abstract: An appliance includes a refrigeration compartment that is defined by a plurality of interior walls. A freezer compartment is positioned proximate to the refrigeration compartment. A compressor is positioned proximate to at least one of the refrigeration compartment and the freezer compartment. A first evaporator is operably coupled to the compressor. A suction line is operably coupled to the first evaporator and is configured to convey refrigerant from the first evaporator toward the compressor. The suction line includes a suction line looping portion that generally defines an inner suction line loop and an outer suction line loop. A capillary tube is operably coupled to the first evaporator and is configured to convey refrigerant to the first evaporator. The capillary tube is configured to contact the suction line looping portion, such that heat from the capillary tube is transferred to the suction line.

Abstract: A heat pump system includes a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, an intermediate heat exchanger, a first throttling element and a first valve member. The intermediate heat exchanger includes a first heat exchange portion and a second heat exchange portion that may carry out heat exchange. A first port of the first heat exchange portion communicates with an inlet of the compressor. A second port of the first heat exchange portion may communicate with at least one of an outlet of the second heat exchanger and a second port of the third heat exchanger. A first port of the second heat exchange portion may communicate with a first port of the third heat exchanger. The first heat exchanger and the second heat exchanger are indoor heat exchangers which are configured to be disposed in an air-conditioning cabinet.

Abstract: A multi-stage refrigeration system (100) includes: a refrigeration loop (110), which includes a gas suction port of a multi-stage compressor (111), a condenser (112), a first throttling element (113), an evaporator (114) and an exhaust port of the multi-stage compressor which are sequentially connected through pipelines; an economizer branch (120), which includes an economizer (121), a second throttling element (122) and a first control valve (123), the economizer having an economizer liquid inlet connected to the condenser via the first throttling element, an economizer liquid outlet connected to the evaporator via the second throttling element, and an economizer exhaust port connected to an intermediate stage of the multi-stage compressor via a control valve; and a bypass branch (130), which is joined to the evaporator from the downstream of the second throttling element and connected to the condenser via the first throttling element, and on which a second control valve (131) is arranged.

Abstract: An ice maker and method of operation for a refrigeration appliance, the ice maker including an ice maker frame having an air inlet provided at a first end thereof. An ice tray is rotatably secured to the ice maker frame and configured to form ice pieces therein. An air handler includes an outlet diffuser having a central body defined by a first wall- and a radially spaced apart second wall, wherein a plurality of radially extending fins are disposed between the first and second walls. Each of the fins is spaced apart, one from the other, along an outer peripheral surface of the first wall. In an installed position, the outlet diffuser is disposed directly adjacent the air inlet at the first end of the ice maker frame. A method is provided for synchronizing an ice making cycle of an ice making unit and a defrost cycle of an evaporator.

Abstract: A refrigeration cycle apparatus includes a first refrigerant circuit including a first compressor, a first heat exchanger, a first refrigerant flow path of a second heat exchanger, a first expansion device, a third heat exchanger, and a second refrigerant flow path of a fourth heat exchanger, and a second refrigerant circuit including a second compressor, a fifth heat exchanger, a second expansion device, a third refrigerant flow path of the second heat exchanger, and a fourth refrigerant flow path of the fourth heat exchanger, a first refrigerant flows through, in order, the first compressor, the first heat exchanger, the first refrigerant flow path, the first expansion device, the third heat exchanger, and the second refrigerant flow path, the second refrigerant flows through, in order, the second compressor, the fifth heat exchanger, the second expansion device, the third refrigerant flow path, and the fourth refrigerant flow path.

Abstract: An ice maker includes a dry compartment and a wet compartment adjacent to the dry compartment and including: an evaporator case sized to receive an evaporator, the evaporator case including: a plurality of interior panels joined to each other with snap-fit joints, each of the snap-fit joints including a tab and defining a slot, each of a plurality of seams formed between the interior panels defining a foam-tight seal and a water-tight seal; and a plurality of exterior panels, each of the plurality of exterior panels joined to a mating interior panel of the plurality of interior panels with slide joints, wherein the evaporator case is integrally insulated with blown foam insulation positioned between each of the plurality of exterior panels and a corresponding interior panel.

Abstract: A refrigerator includes a cabinet configured to form a first storage chamber and a second storage chamber, a first evaporator configured to cool the first storage chamber, a first fan configured to circulate air in the first storage chamber to the first evaporator and the first storage chamber, a second evaporator configured to cool the second storage chamber, a compressor configured to be connected to the first evaporator and the second evaporator, a second fan configured to circulate air in the second storage chamber to the second evaporator and the second storage chamber; a refrigerant valve configured to guide refrigerant to the first evaporator or the second evaporator, and a controller configured to perform a plurality of modes sequentially to defrost the second evaporator.

Abstract: A defogging control system includes a plurality of first heating wires, a plurality of second heating wires, an electrical sensor and driver, a timer, an environment sensing module, and a control module. The electrical sensor and driver is utilized to generate a start signal or a stop signal, corresponding to a controller of a refrigeration storage apparatus. The timer is utilized to count a real-time operation time and record a previous operation time. The environment sensing module is utilized to sense a temperature and a humidity. The control module is utilized to control the first heating wires and the second heating wires by the real-time operation time, the previous operation time, the temperature, and the humidity. Further, a defogging control method is also provided.

Abstract: A control method of a transcritical carbon dioxide composite heat pump system is disclosed, wherein the transcritical carbon dioxide composite heat pump system includes: a CO2 main circuit compressor, an air-cooling-air-cooling recombiner, a supercooling-evaporation recombiner, an evaporator and a CO2 auxiliary compressor; wherein the air-cooling-air-cooling recombiner comprises a CO2 main circuit, a CO2 auxiliary circuit and a water circuit; the supercooling-evaporation recombiner comprises a CO2 main circuit supercooling section and a CO2 auxiliary circuit evaporation section. The present invention includes two working modes according to the return water temperature, so that the unit has a wider application range and meets daily needs. There is only one heat exchanger for refrigerant and water. Compared with the three water and refrigerant heat exchangers in the conventional transcritical CO2 composite heat pump, the circulating water circuit is a single circuit with one inlet and one outlet.

Abstract: A heat exchanger includes first and second headers connected to end portions of heat transfer tubes. The second header includes a header pipe defining a flow space that communicates with the heat transfer tubes and, when the heat exchanger acts as an evaporator, allows refrigerant in a two-phase gas-liquid state to pass through the flow space into the heat transfer tubes. A bypass pipe is disposed between an entrance portion and the first header. The entrance portion has an entrance distance L between a connection end portion connected to a refrigerant pipe and a central axis of the bypass pipe. The entrance distance L of the entrance portion satisfies L?5di, where di is an inner diameter of a flow space of the header pipe on an orthogonal plane orthogonal to a direction of refrigerant flow. The bypass pipe is inserted in the flow space of the entrance portion.

Abstract: The present disclosure relates to a heating and cooling apparatus having a moisture removal function for testing electrical characteristics of a semiconductor element using a probe system, in which the heating and cooling apparatus is configured to be capable of hot and cold measurement of a wafer or a flat panel display product and to be capable of efficiently removing water droplets generated at the time of cooling by adding a vortex tube to a thermo-stream provided in a probe head of the probe system and configuring the vortex tube to be interlocked with a moisture removal device.