Abstract: An air-cooled chiller (100) includes a compressor (12); a cooler (14); a heat recovery heat exchanger (16), wherein the heat recovery heat exchanger is connected between an output of (12b) the compressor and an input header (20) of an air heat exchanger (60). A solenoid valve (30) is located in an input header (20) of the air heat exchanger to divide the input header into a first portion (20a) and a second portion (20b). A controller (32) is configured to control the solenoid valve (30). A second valve (34) is located in the output header (36) to divide the output header into a first portion (36a) and a second portion (36b). There is also provided a method of operating the air-cooled chiller and a method of retrofitting an existing serial-concept air cooled chiller, to provide the present air-cooled chiller.

Abstract: A cooling unit for a data center comprises a fan section, a set of airstream diversion sections, and a set of cooling sections. The fan section is disposed at a front end of the unit. The set of airstream diversion sections includes one or more main airstream diversion channels and a rear airstream diversion channel. The airstream diversion section is configured to direct airflow from the fan section to the set of cooling sections. The set of cooling sections includes a main cooling section disposed at a side of the unit and a rear cooling section disposed at a rear end of the unit. Cooling modules may be arranged in series within each cooling section and among multiple cooling sections to manage a cooling fluid distribution corresponding to hot air inlets, to achieve more uniform temperature and better thermal management.

Abstract: Variable volume ratio compressors may be controlled using a switching parameter based on compressor speed and suction density to improve the matching of compressor volume ratio to desired discharge conditions. Delay periods may be implemented in the determination of when to change volume ratio to control the frequency of changes to the volume ratio. The switching parameter may be a product of the compressor speed and suction density. The volume ratio of the compressor may be controlled by switching valves directing pressure to a piston of a variable volume ratio system of the compressor.

Abstract: A gas dehumidification device having two heat exchangers, each including a first and second fluid line. Each second fluid line at least partially surrounds the respective first fluid line. Each heat exchanger thermally couples a fluid in the respective heat exchanger second fluid line with a first coolant on an outside surface of the respective heat exchanger second fluid line. The gas dehumidification device further comprises a two-position valve. In a first position, a fluid comprising a higher temperature than the first and/or second coolant is conducted into the first heat exchanger first fluid line and in the second position, the fluid is conducted into the second heat exchanger first fluid line. A controller is configured to place the valve selectively into the first or second position.

Abstract: An air conditioner includes a battery temperature adjustment device which adjusts the temperature of a battery and has a refrigerant-heat medium heat exchanger to exchange heat between a refrigerant and a heat medium. A controller executes a first heating/battery cooling mode to let the refrigerant discharged from a compressor radiate heat in a radiator, decompress the refrigerant, and then let the refrigerant absorb heat in an outdoor heat exchanger and the refrigerant-heat medium heat exchanger, and a second heating/battery cooling mode to let the refrigerant discharged from the compressor radiate heat in the radiator and the outdoor heat exchanger, decompress the refrigerant, and then let the refrigerant absorb heat in the refrigerant-heat medium heat exchanger.

Abstract: A refrigeration cycle apparatus includes a refrigerant circuit, through which refrigerant is circulated, including a compressor, a heat source side heat exchanger, a first expansion device, and a load side heat exchanger, a controller controlling the refrigerant circuit, and a bypass pipe that branches off from a high-pressure pipe extending from the compressor to the first expansion device and that is connected to a low-pressure pipe on a suction side of the compressor. The apparatus further includes a precooling heat exchanger that is provided in the bypass pipe and that cools the refrigerant diverted to the bypass pipe, a second expansion device that is provided in the bypass pipe and that reduces a pressure of the refrigerant cooled by the precooling heat exchanger, and a refrigerant cooler that is provided in the bypass pipe and that cools the controller with the refrigerant reduced in pressure by the second expansion device.

Abstract: A refrigerator includes a compressor, a condenser, a first evaporator connected with a first evaporator inlet path and a first evaporator outlet path, a second evaporator connected with a second evaporator inlet path and a second evaporator outlet path, a third evaporator connected with a third evaporator inlet path and a third evaporator outlet path, a path switching device, and a controller for controlling the compressor and the path switching device based on at least one mode.

Abstract: System and method for screening objects of an individual, comprising an infeed station, object containers, an outfeed station, a screening station for automated screening of object containers from the infeed station and a conveyor for conveying object containers from the infeed station to the outfeed station via the screening station. The infeed station comprises an identification terminal for determining an identification of the individual, an object container dispenser for making an object container available to the individual, and a detection device for detecting the individual at the infeed station, wherein the object container dispenser is configured to make object containers available to the individual during use of the system only when said individual's identification has been determined and as long as the detection device continues to detect the presence of said individual at the infeed station.

Abstract: Methods and systems for controlling the release of heat by a temperature control unit are provided. In one embodiment, the method includes monitoring a heat release condition of the temperature control unit. This method also includes determining, via a controller, whether to release the heat generated by the temperature control unit to an ambient environment outside of the internal space based on the heat release condition. Also, this method includes operating a HVAC circuit of the temperature control unit in a heat release mode when the controller determines that the heat generated by the temperature control unit is to be released to the ambient environment outside the internal space. Further, this method includes operating the HVAC circuit of the temperature control in a heat storage mode when the controller determines that the heat generated by the HVAC unit is not to be released to the ambient environment outside the internal space.

Abstract: A method for controlling a valve arrangement (12), e.g. in the form of a three way valve, in a vapor compression system (1) is disclosed, the vapor compression system (1) comprising an ejector (6). The valve arrangement (12) is arranged to supply refrigerant to a compressor unit (2) from the gaseous outlet (11) of a receiver (7) and/or from the outlet of an evaporator (9). The vapor compression system (1) may be operated in a first mode of operation (summer mode) or in a second mode of operation (winter mode). When operated in the second mode of operation, it is determined whether or not conditions for operating the vapor compression system (1) in the first mode of operation are prevailing. If this is the case, the valve arrangement (12) is actively switched to the first mode of operation by closing a first inlet (13) towards the evaporator (7) and fully opening a second inlet (14) towards the receiver (7).

Abstract: The present disclosure provides a heat pump system for a vehicle having a first heat source. The heat pump system includes: a first heat exchanger; a second heat exchanger; a primary loop through which coolant circulates, the primary loop passing through the first and second heat exchangers; and a secondary loop through which a refrigerant circulates. In particular, the primary loop includes a flow control device to control the direction and the flow rate of a coolant passing through the primary loop, and a bypassing line through which the coolant selectively bypasses the first heat source in the primary loop. The secondary loop is thermally coupled to the primary loop via the second heat exchanger, and the secondary loop further includes a compressor, an evaporator, and a condenser.

Abstract: Methods and systems are provided for a dual loop coolant system used to control an engine temperature. In one example, cooling capacity is transferred from a low temperature loop to a heat exchanger, and cooling capacity stored in the heat exchanger is transferred to a high temperature loop (e.g., an engine coolant loop). The flow of coolant from the dual loop coolant system to the heat exchanger may be regulated responsive to a temperature of the coolant in each of the low temperature loop and the high temperature loop.

Abstract: Systems, methods, and non-transitory computer-readable media can obtain a first video frame and a second video frame. The first video frame can be processed using a convolutional neural network to output a first set of feature maps. The second video frame can be processed using the convolutional neural network to output a second set of feature maps. The first set of feature maps and the second set of feature maps can be processed using a spatial matching layer of the convolutional neural network to determine an optical flow for at least one pixel.

Abstract: A system for cooling and controlling a cooling system having a variable speed compressor, a condenser, a variable flow regulator, a metering device, an evaporator, and a refrigerant. The system includes controlling the speed of the variable speed compressor by transmitting a control signal to the variable speed compressor such that the speed of the variable speed compressor is based on the control signal and lowering the speed of the variable speed compressor results in a lower flow rate of the refrigerant and thus a reduced rate of cooling. The system also includes selectively opening or closing the variable flow regulator such that a closed variable flow regulator restricts the flow of the refrigerant through the evaporator and thus reduces the rate of cooling.

Abstract: A refrigeration device includes a first refrigeration compartment for storing refrigerated goods at a first temperature, the first refrigeration compartment including a first evaporator with a first controllable expansion valve at the refrigerant inlet of the first evaporator, and a second refrigeration compartment for storing refrigerated goods at a second temperature, the second refrigeration compartment including a second evaporator with a second controllable expansion valve at the refrigerant inlet of the second evaporator. A refrigerant outlet of the first evaporator is connected to the second controllable expansion valve at the refrigerant inlet of the second evaporator.

Abstract: A method for operating a defrost mode of a transport refrigerant vapor compression system includes initiating a defrost operation for the transport refrigerant vapor compression system by energizing heaters operatively coupled to a heat absorption heat exchanger operable to defrost the heat absorption heat exchanger. During the defrost operation, the method includes comparing the heat absorption heat exchanger pressure to the first predetermined limit; in response to the heat absorption heat exchanger pressure being less than the first predetermined limit, performing at least one operation to determine if the defrost operation should be exited; and in response to the heat absorption heat exchanger pressure being greater than the first predetermined limit, exiting the defrost operation.

Abstract: A method for distributing a refrigerant charge level in a refrigerant vapor compression system includes restarting a stopped refrigerant compression device in a first mode; operating a primary expansion device independent of refrigerant heat absorption heat exchanger superheat; comparing a condition at a refrigerant reservoir to a prescribed condition; wherein when the condition is below the prescribed condition for a prescribed interval, operating the primary expansion device to control the refrigerant heat absorption heat exchanger superheat; and transitioning the refrigerant vapor compression system to a second mode.

Abstract: An integrated CO2 refrigeration and air conditioning (AC) system for use in a facility includes one or more CO2 compressors configured to discharge a CO2 refrigerant at a higher pressure for circulation through a circuit to provide cooling to one or more refrigeration loads in the facility and a receiver configured to receive the CO2 refrigerant at a lower pressure through a high pressure valve. The integrated system further includes an AC module configured to deliver a chilled AC coolant to AC loads in the facility. The AC module includes an AC evaporator and an AC compressor. The AC evaporator has an inlet configured to receive CO2 liquid and an outlet configured to discharge a CO2 vapor. The AC compressor is arranged in parallel with the one or more CO2 compressors and is configured to receive CO2 vapor from both the AC evaporator and the receiver.

Abstract: A refrigerator appliance (and associated method) that includes a condenser, evaporator and a multi-capacity compressor. The appliance also includes a pressure reducing device arranged within an evaporator-condenser refrigerant circuit, and a valve system for directing or restricting refrigerant flow through the device. The appliance further includes a controller for operating the compressor upon the initiation of a compressor ON-cycle at a priming capacity above a nominal capacity for a predetermined or calculated duration.

Abstract: An air-conditioning system is provided for an automobile comprising an interior air-conditioning module, which can be connected in a heat-transporting manner to at least two coolant-carrying cooling circuits of the automobile via valves (e.g., controllable or adjustable valves). A controller is also provided that is configured to control the valves in such a manner that those cooling circuits having the higher coolant temperature can be connected in a heat-transporting manner to the interior air-conditioning module. A method is also provided for operating an air-conditioning system.

Abstract: A refrigeration system includes a compressor; a condenser connected to a first inlet of a separator which has: a vapor outlet connected to the compressor and a liquid outlet connected to an evaporator; a selecting valve having: a first vapor inlet connected to the evaporator; a second vapor inlet connected to the separator; and a vapor outlet connected to the compressor, the selecting valve being operated to selectively and alternatively communicate its first and second vapor inlets with its vapor outlet, so as to allow the compressor to draw vapor from the separator and from the evaporator; and a control unit for controlling the operation of the selecting valve.

Abstract: A refrigerating apparatus for keeping an inside of a storage at a predetermined low-temperature state includes first and second refrigerant circuits including compressors, condensers, decompressors, and evaporators, connected circularly with pipings to form refrigerating cycles, the circuit having a first or second refrigerant sealed therein as a working refrigerant, a first sensor which detects a temperature of a cascade condenser constituted by integrating the evaporator of the first refrigerant circuit and the condenser of the second refrigerant circuit in a heat exchangeable manner, first and second controllers which control operation performances of the first and second compressors in a variable manner based on first and second sensor detected temperatures in order that the first and second sensor detected temperatures are first and second temperatures, respectively, and a second sensor which detects a temperature inside the storage.

Abstract: The present invention provides an energy efficient air conditioner that can provide a continuous supply of air at dew point that is several degrees Celsius below zero, without requiring a defrost cycle. The air conditioner in accordance to present invention comprises a plurality of cooling coils with interconnecting refrigerant piping, refrigeration circuit consisting of compressor and condenser coils, control circuit and one or more electric motor driven centrifugal fan. The present invention uses two cooling systems. The first cooling system having single coil cools the air to a temperature just above zero deg. C., say four deg. C. so that the second stage gets a steady supply of cold air. The second stage has two coils, each being half the size of the first stage coil, thus taking half the air from it so that all the air from stage 1 passes through stage 2. In operation, only one coil of the second stage is active arid chills the air going through it to say minus 14 Deg. C.

Abstract: A subcool condenser having a condensation heat exchange portion, a receive portion and a supercool heat exchange portion is used as an outdoor heat exchanger that functions as a radiator in a cooling operation mode so that COP in the cooling operation mode is increased. In contrast, in a heating operation mode, a refrigerant bypass device that causes the refrigerant to flow so as to bypass the supercool heat exchange portion is provided so that pressure loss generated in the refrigerant flowing through the outdoor heat exchanger is decreased. Thereby, driving force of a compressor can be decreased and COP in the heating operation mode can be improved.

Abstract: An ejector-type refrigerant cycle device includes: a first evaporator 15 that evaporates refrigerant flowing out of an ejector 14; a branch passage 17 that branches a flow of refrigerant between a radiator 13 and the ejector 14 and guides this flow of refrigerant to a vapor-phase refrigerant suction port 14c of the ejector 14; a throttling mechanism 18 disposed in the branch passage 17; and a second evaporator 19 disposed downstream of the throttling mechanism 18 with respect to the flow of refrigerant. The throttling mechanism 18 is constructed to be provided with a fully opening function, and to fully open the branch passage 17 when the second evaporator 19 is defrosted. Therefore, in an ejector-type refrigerant cycle device including multiple evaporators, the function of defrosting the evaporators can be carried out with a simple construction.

Abstract: An HVAC system and method for configuring a controller to control a compressor including a detection system provided to determine a type of compressor. The detection system includes a processor; and a load sensing circuit connected between the processor and a controller. The controller has a plurality of output connections connectable to a compressor. The load sensing circuit senses whether a load is present on each output connection of the plurality of output connections and provides a load signal to the processor indicating whether a load is present on each output connection. The load signals are processed with the processor to determine the type of compressor is present. The controller is configured to control the compressor in response to the determined type of compressor.

Abstract: A refrigerant cycle device having an ejector includes a first evaporator for evaporating refrigerant flowing out of the ejector, a first passage portion for guiding refrigerant to a refrigerant suction port of the ejector, a throttle unit located in the first passage portion, a second evaporator located in the first passage portion downstream of the throttle unit, a bypass passage portion for guiding hot gas refrigerant from a compressor into the second evaporator, a bypass opening and closing unit provided in the bypass passage portion. Furthermore, a second passage portion is branched from the bypass passage portion downstream of the bypass opening and closing unit, and a flow control unit is provided in the second passage portion to prevent a flow of refrigerant from the first evaporator to the second evaporator through the second passage portion. Therefore, defrosting of both the first and second evaporators can be suitably performed.

Abstract: Refrigerating appliance comprises at least one first, second and third refrigerating area for a low, medium or high storage temperature, whereby each refrigerating area has an evaporator. The refrigerating appliance also comprises a compressor, a refrigerant circuit for supplying compressed refrigerant to the evaporators and for returning expanded refrigerant to the compressor, and comprises at least one switching element for directing, as desired, the refrigerant through one of two branches of the refrigerant circuit. In the first branch, the evaporators of the first and the third refrigerating areas are connected in series. In the second branch, the evaporators of all three refrigerating areas are connected in series.

Abstract: An ejector-type refrigerant cycle device includes: a first evaporator 15 that evaporates refrigerant flowing out of an ejector 14; a branch passage 17 that branches a flow of refrigerant between a radiator 13 and the ejector 14 and guides this flow of refrigerant to a vapor-phase refrigerant suction port 14c of the ejector 14; a throttling mechanism 18 disposed in the branch passage 17; and a second evaporator 19 disposed downstream of the throttling mechanism 18 with respect to the flow of refrigerant. The throttling mechanism 18 is constructed to be provided with a fully opening function, and to fully open the branch passage 17 when the second evaporator 19 is defrosted. Therefore, in an ejector-type refrigerant cycle device including multiple evaporators, the function of defrosting the evaporators can be carried out with a simple construction.

Abstract: A storage system that has variable temperature includes one or more drawers. The one or more drawers are independently operable of one another. A heating and cooling system is in thermal communication with the one or more drawers. The heating and cooling system generates even air-flow around all sides of the one or more drawers for heating and/or cooling thereof.

Abstract: A refrigeration system for controlling airflow around an air-cooled heat generating device includes a variable speed compressor. The refrigeration system also includes evaporators positioned along a refrigerant line in a serial configuration with respect to each other and are positioned directly in at least one of the path of airflow supplied into the heat generating components and the path of airflow exhausted from the heat generated components. The refrigeration system further includes a controller and at least one temperature sensor. The temperature sensor is configured to transmit signals related to the detected temperature to the controller, and the controller is configured to vary the speed of the variable speed compressor based upon the signals received from the temperature sensor.

Abstract: A first evaporator connected to an outlet side of an ejector, a second evaporator connected to a refrigerant suction port of the ejector, a throttle mechanism arranged on an inlet side of a refrigerant flow of the second evaporator and for reducing the pressure of the refrigerant flow are provided. Furthermore, the ejector, the first evaporator, the second evaporator and the throttle mechanism are assembled integrally with each other to construct an integrated unit having one refrigerant inlet and one refrigerant outlet. Hence, mounting performance of an ejector type refrigeration cycle can be improved.

Abstract: An air-chiller comprises a primary compressor that circulates a mixture of four refrigerants with different boiling points through a primary condenser and several heat-exchanger coils in series. Each heat exchanger coil includes a large section of tubing in which are disposed four smaller sections of tubing. Two of these smaller sections of tubing carry the air to be chilled. The other two smaller sections of tubing carry high pressure refrigerants from the compressor and condenser. The remaining inside volume of the large section of tubing provides for the suction-return of heat-laden refrigerants. Input air passes through the four heat exchangers in series and comes out the fourth one highly refrigerated. The high-pressure refrigerant coming out of the primary compressor is chilled below ambient temperature by a secondary refrigeration sub-system. Such is circulated, after drying, through an auxiliary condenser for additional refrigeration before going to work in the first heat-exchanger coil.

Abstract: An icemaker system provided in a refrigerator is designed to reduce an amount of time required to produce ice. The refrigerator includes a refrigeration system including a number of refrigeration components and a refrigeration loop. The refrigeration loop includes an icemaker section that carries a flow of refrigerant to an ice mold portion of the icemaker system and a bypass section that isolates the icemaker system from the flow of refrigerant. A control system automatically activates the icemaker system regardless of a need for cooling. That is, upon sensing a demand for ice, the control system opens a valve to cause refrigerant to flow through the icemaker section and activates the refrigeration components to speed ice production whether or not additional cooling is required in fresh food and/or freezer compartments.

Abstract: A bypass factor of an evaporator is used to indicate when an air filter of an HVAC is clogged. The bypass factor represents the amount of air that is bypassed without direct contact with the evaporator. As the air filter clogs, the bypass factor decreases. The bypass factor can also be used for early detection of clogging of the air filter. A first bypass factor is calculated by using the temperature measurements, and a second bypass factor is calculated by using the airflow rate of the air. The difference between the two bypass factors determines the error. An increase in the error indicates that the air filter is clogged. A coefficient of performance of the evaporator can also be calculated to detect if the air filter is clogged. A decrease in the coefficient of performance indicates that the air filter is clogged.

Abstract: A refrigerator comprises a main cabinet formed with a storage compartment, a partition which partitions the storage compartment into a first storage compartment, a second storage compartment, a multipurpose compartment; a first evaporator provided to the main cabinet to generate cool air supplied to the first storage compartment; a second evaporator which is provided to the main cabinet to generate the cool air supplied to the second storage compartment; a first sub cool air duct which guides the cool air generated from the first evaporator to the multipurpose compartment; a second sub cool air duct which guides the cool air generated from the second evaporator to the multipurpose compartment; and at least one sub cool air supplying apparatus provided to the first sub cool air duct and the second sub cool air duct to supply the cool air from the first evaporator and the second evaporator to the multipurpose compartment.

Abstract: A refrigerator and a control method thereof in which a smooth flow of a refrigerant can be provided through an effective control for a path change valve when a flow path of the refrigerant is changed between two evaporators having different pressures. The refrigerator includes low-pressure-side and high-pressure-side evaporators, a path change device, and a controller. The path change device changes a refrigerant flow path between the low-pressure-side evaporator and the high-pressure-side evaporator, and has a simultaneous opening stage to simultaneously establish refrigerant flow paths respectively communicating with the low-pressure-side evaporator and high-pressure-side evaporator during the path change.

Abstract: A heat pump employing CO2 as refrigerant and utilizing heat source of natural water, e.g. well water, ground water, river water or sea water, effectively is applied to an air conditioning system in order to enhance heating/hot water supplying capacity and refrigeration capacity without requiring a large scale appurtenant facilities.

Abstract: The refrigerating appliance comprises at least one first, second and third refrigerating area for a low, medium or high storage temperature, whereby each refrigerating area has an evaporator (24, 25, 26). The refrigerating appliance also comprises a compressor (19), a refrigerant circuit for supplying compressed refrigerant to the evaporators (24, 25, 26) and for returning expanded refrigerant to the compressor (19), and comprises at least one switching element (22, 22?) for directing, as desired, the refrigerant through one of two branches (I, II) of the refrigerant circuit. In the first branch (I), the evaporators (24, 26) of the first and the third refrigerating areas are connected in series. In the second branch (II), The evaporators (24, 25, 26) of all three refrigerating areas are connected in series.

Abstract: There is provided a system and method for controlling a temperature of a refrigerant in an air conditioner, in which a supercooling degree and/or a superheating degree can be secured by controlling a difference in refrigerant temperatures of a pipe connecting one or more indoor units to one or more outdoor units, and a flow of a specific refrigerant. The system includes: one or more indoor units; one or more outdoor units; a high-pressure pipe and a low-pressure pipe for connecting the indoor units and the outdoor units; and a refrigerant temperature control unit coupled to the high-pressure pipe and the low-pressure pipe, for performing a heat exchange with respect to flowing refrigerants by coupling an inner pipe to an outer pipe, the inner pipe passing through the another pipe.

Abstract: The present invention relates to a cooling apparatus including a compressor, a condenser, a first expanding unit, a second expanding unit, a third expanding unit, a first evaporator, and a second evaporator; a first refrigerant circuit containing refrigerant discharged from the compressor and flowing into a suction side of the compressor through the condenser, the first expanding unit, the first evaporator, the second expanding unit and the second evaporator; a second refrigerant circuit containing the refrigerant passing through the condenser flowing into the suction side of the compressor through the third expanding unit and the second evaporator; a flow path control unit installed at a discharge side of the condenser, switching a refrigerant flow path so that the refrigerant passing through the condenser flows through at least one of the first and second refrigerant circuits; and a control unit selectively opening and closing the flow path control unit.

Abstract: A system and method for cooling a room configured to house a plurality of computer systems. A plurality of evaporator units are arranged in series and are configured to receive air from the room and to deliver air to the room. The evaporator units are supplied with refrigerant operable to cool the received air in the evaporator units. At least one of the temperature of the refrigerant supplied to the evaporator units and the air delivery to the room may be controlled in response to temperatures sensed at one or more locations in the room.

Abstract: A refrigerator which performs various refrigeration cycles by variously changing refrigerant paths, thus accomplishing refrigerant evaporating temperatures suitable for a refrigerator compartment evaporator and a freezer compartment evaporator, respectively, and which cools a selected one of a refrigerator compartment and a freezer compartment as desired to enhance a cooling efficiency and increasing a cooling speed of the refrigerator.

Abstract: The present invention relates to a cooling apparatus including a compressor, a condenser, a first expanding unit, a second expanding unit, a third expanding unit, a first evaporator, and a second evaporator; a first refrigerant circuit containing refrigerant discharged from the compressor and flowing into a suction side of the compressor through the condenser, the first expanding unit, the first evaporator, the second expanding unit and the second evaporator; a second refrigerant circuit containing the refrigerant passing through the condenser flowing into the suction side of the compressor through the third expanding unit and the second evaporator; a flow path control unit installed at a discharge side of the condenser, switching a refrigerant flow path so that the refrigerant passing through the condenser flows through at least one of the first and second refrigerant circuits; and a control unit selectively opening and closing the flow path control unit.

Abstract: The present invention provides an indoor unit in air conditioner, including two heat exchangers, a connection pipe connecting the heat exchangers, first means for guiding refrigerant flow, and second means provided to the connection pipe. The two heat exchangers, i.e., first and second heat exchangers, have one ends connected to first and second pipelines connected to parts outside of the indoor unit, for an example, a compressor or an outdoor expansion device. The first means selectively guides the refrigerant introduced thereto through the first or second pipeline to be discharged through the second or the first pipeline after being passed through both, or either of the first and second heat exchangers. The second means is provided to the connection pipe so that the refrigerant transferred from one of the first and second heat exchanger to the other one of the first and second heat exchanger is passed in an original state or in an expanded state.

Abstract: A two-compartment cooling apparatus which achieves a plurality of refrigeration cycles by controlling refrigerant paths, thus increasing cooling efficiency and cooling speed of the cooling apparatus. A compressed refrigerant provided by a compressor is selectively provided to first and/or second evaporators via first, second and third expansion units and a path control unit. The path control unit controls the flow of the refrigerant through the expansion units and the evaporators to vary the cooling in the respective compartments in response to temperature measurements made in the respective compartments.

Abstract: A two-compartment cooling apparatus which achieves a plurality of refrigeration cycles by controlling refrigerant paths, thus increasing cooling efficiency and cooling speed of the cooling apparatus. A compressed refrigerant provided by a compressor is selectively provided to first and/or second evaporators via first, second and third expansion units and a path control unit. The path control unit controls the flow of the refrigerant through the expansion units and the evaporators to vary the cooling in the respective compartments in response to temperature measurements made in the respective compartments.

Abstract: System and method for reducing temperature variation among components in a multi-component system. In this respect, component temperatures are controlled to remain relatively constant (approximately within 5° C.) with respect to other components, while allowing for multiple fluctuating heat loads between components. A refrigeration system possessing a variable capacity (speed) compressor and an electronic valve is utilized to control the flow of refrigerant through the refrigeration system. The temperature of the components is reduced by metering the mass flow rate of the refrigerant cooling the components to compensate for the heat load applied to the refrigeration system.

Abstract: The invention relates to a vehicle cooling system (1) for a temperature-raising device (4), especially a drive battery or fuel cell, preferably for an electric or hybrid vehicle. The system has a coolant (7) that cools the device (4) with the involvement of an air-conditioning system (8) that serves for air-conditioning of the vehicle passenger compartment. It is preferred that the coolant (7) be a liquid coolant, which is carried in a cooling circuit (2) and for cooling of the liquid to be thermally integrated into the refrigeration circuit (3) of the air-conditioning system. The invention further relates to a method for cooling a temperature-raising vehicle device.

Abstract: The invention relates to a vehicle cooling system (1) for a temperature-raising device (4), especially a drive battery or fuel cell, preferably for an electric or hybrid vehicle. The system has a coolant (7) that cools the device (4) with the involvement of an air-conditioning system (8) that serves for air-conditioning of the vehicle passenger compartment. It is preferred that the coolant (7) be a liquid coolant, which is carried in a cooling circuit (2) and for cooling of the liquid to be thermally integrated into the refrigeration circuit (3) of the air-conditioning system. The invention further relates to a method for cooling a temperature-raising vehicle device.