Abstract: An upper opening portion (74, 75) and lower opening portion (76, 77) are arranged in a door body (13b, 14b) located below a side window (13a, 14a), and an air conditioning unit (15, 16) is arranged inside the door body (13b, 14b), and a rotary position of a scroll casing (62, 63) of a blower (56, 57) is selected so that air can flow from the lower opening portion (76, 77) to the upper opening portion (74, 75) at the time of air-cooling and air can flow from the upper opening portion (74, 75) to the lower opening portion (76, 77) at the time of heating.

Abstract: A system that utilizes a rigid support structure of various configurations and materials, with attached item support members designed to hold perishable items to which the module is adapted. A further system of temperature-regulated fluid is employed to flow across the exterior of the support structure upon a free-flow surface in thermal conduction contact with the item support members. The resultant desirable outcome and intention of the system is to thus regulate the temperature of the stored and/or displayed perishable items while simultaneously producing the visual dynamics and potential audible aesthetic qualities of fluid in modified descending motion. The invention lends itself to artistic expressions for design features, within the limits of the claims, while maintaining the technical goals of perishable item preservation, convenience of location within normal living or merchandising space, and display of representative items.

Abstract: A system and method are provided for refrigerating at least one enclosure, such as an aircraft galley cart. The system includes at least one air-to-liquid heat exchanger, an eutectic thermal battery, a liquid-to-direct heat exchanger and at least one liquid-to-direct heat pump. The air-to-liquid heat exchangers are in thermal communication with the interiors of the enclosures. The thermal battery is in fluid communication with the air-to-liquid heat exchangers via a first coolant loop. The liquid-to-direct heat exchanger and the liquid-to-direct heat pumps are in fluid communication with the eutectic thermal battery via a second coolant loop, and in thermal communication with a cold heat sink, such as an aircraft fuselage skin structure. The system can controllably operate in direct passive, indirect passive, direct active and/or an indirect active modes whereby a coolant can selectively flow in the first and/or second coolant loops to thereby refrigerate the enclosures.

Abstract: A system and method are provided for refrigerating at least one enclosure, such as an aircraft galley cart. The system includes at least one air-to-liquid heat exchanger, an eutectic thermal battery, a liquid-to-direct heat exchanger and at least one liquid-to-direct heat pump. The air-to-liquid heat exchangers are in thermal communication with the interiors of the enclosures. The thermal battery is in fluid communication with the air-to-liquid heat exchangers via a first coolant loop. The liquid-to-direct heat exchanger and the liquid-to-direct heat pumps are in fluid communication with the eutectic thermal battery via a second coolant loop, and in thermal communication with a cold heat sink, such as an aircraft fuselage skin structure. The system can controllably operate in direct passive, indirect passive, direct active and/or an indirect active modes whereby a coolant can selectively flow in the first and/or second coolant loops to thereby refrigerate the enclosures.

Abstract: A tank is provided which can store, while cooling, drinks or other liquids, such as milk, having a storage temperature close to 0.degree. C. or below. A cooling tank (1) can be mounted on a truck or the like for transportation, while storing and cooling milk. It is characterized in that brine (antifreeze solution) which has a freezing point below 0.degree. C. is cooled in a cooling unit (34) and allowed to pass, without stagnation, along fluid passages in flow guide members (14, 18) installed on the wall surface of the tank body (10). The cooling unit (34) preferably has an evaporator in a heat pump type refrigerator (30) for example, which uses a refrigerant for cooling the brine. Since the brine with a freezing point below 0.degree. C. is used, a large-sized water tank for cooling becomes unnecessary, and further since the brine will flow without stagnation, the liquid inside the tank body can be effectively cooled.

Abstract: A chiller-condenser is disposed downstream of a condenser and a chiller-evaporator is disposed downstream of the chiller-condenser. A main three-way valve is disposed between the compressor and the condenser for directing flow from the compressor to the condenser in the air-conditioning mode and for directing flow from the compressor through a by-pass line to the chiller-condenser in the heat pump mode. A heat pump (HP) expansion device shown as an orifice tube expands the refrigerant in the heat pump mode and an by-pass valve is disposed between the chiller-condenser and the chiller-evaporator for directing flow from the chiller-condenser through the heat pump expansion device and to the chiller-evaporator in the heat pump mode. An air-conditioning (A/C) expansion device shown as orifice tube is disposed downstream of the condenser and upstream of the by-pass line for expanding the refrigerant in the air-conditioning mode.

Abstract: A refrigeration system includes a housing and a plurality of pans removably positionable therein. A water chilling system is disposed within the housing and includes a compressor and a water reservoir housing a cooling coil disposed therein. A plurality of pipes are disposed inside and outside the water reservoir respectively for channeling chilled water out of the reservoir and warm water into the reservoir. A pump is disposed within the reservoir and connected to one of the plurality of pipes for pumping chilled water outwardly and away from the reservoir. A plurality of tubes are connected to the plurality of pipes for channeling water away from and towards the plurality of pipes, respectively. The water chilling system further includes a plurality of coils having substantially serpentine shapes selectively positionable within the pans for directing chilled water into the plurality of pans and for cooling the products disposed therein.

Abstract: A method of controlling a hydronic system is provided. The hydronic system includes a plurality of fluid heat exchange units for feeding a load, and a bypass valve for bypassing the load. The method includes operating at least a first and a second fluid heat exchange unit in the hydronic system to heat or cool a fluid. An output fluid flow of each of the operating fluid heat exchange units is monitored. The monitored output fluid flow of each fluid heat exchange unit is compared to a predetermined fluid flow setpoint. The output fluid flow of each of the operating fluid heat exchange units is adjusted towards the predetermined fluid flow setpoint if the monitored output flow is different from the predetermined fluid flow setpoint by at least a predetermined margin. A combined output fluid flow of the operating fluid heat exchange units is also monitored. The bypass valve is at least partially opened if the combined output fluid flow is below a predetermined minimum combined output fluid flow.

Abstract: A system, apparatus, and method are provided for selectively actively and passively refrigerating one or more enclosures. The apparatus includes a primary heat sink that defines at least one surface configured to receive thermal energy from a gas in the enclosure so that the enclosure is refrigerated. First and second coolant heat sinks thermally communicate with the primary heat sink to remove thermal energy therefrom. For example, in a passive mode, a coolant is circulated through the first heat sink to cool the primary heat sink. In an active mode, the coolant is circulated through the second coolant heat sink and at least one heat pump is operated to transfer thermal energy from the primary heat sink to the coolant in the second coolant heat sink.

Abstract: A heat transfer apparatus includes one heat exchanging system having a compressor coupled between a condenser and a heat exchanger. A further heat exchanging system includes a water pump, an ion exchange filter coupled between the water pump and the heat exchanger, to filter negative ions, positive ions, mineral materials, and/or impurities from the water. A temperature detecting member may actuate a heater to maintain the water temperature. A water cycling system includes a water reservoir to maintain the water pressure in the further heat exchanging system. An air relief valve may relieve air bubbles to reduce shocks and vibrations in the heat exchanging system.

Abstract: The present invention relates to an integrated circuit system with at least one integrated circuit, a cooling body to dissipate the heat generated by the integrated circuit and a latent heat storage module having a latent heat storage medium. The latent heat storage module is thermally connected to the cooling body in order to temporarily store the heat generated by the integrated circuit and to convey it to the cooling body. The integrated circuit has at least one semiconductor component which is assembled on a substrate and the substrate is in direct thermal contact with the latent heat storage module.

Abstract: An indoor facility provided with a liquid refrigerant dehumidifier coil connected with the main refrigeration coils in a secondary refrigerant loop and a compressor waste heat coil coupled with the primary refrigerant loop and heating a desiccant wheel for removing further humidity from the process air stream.

Abstract: This temperature regulation apparatus comprises a heat pump (12) comprising a main compression circuit (14) for a refrigerant fluid taking heat from a cold source (16) and transferring it to a hot source (18). The cold source (16) comprises a first heat exchanger (24) for exchanging heat between the refrigerant fluid and a liquid coolant thermally coupling the main refrigerant circuit (14) to a first secondary coolant circuit (26). The first secondary circuit (26) has selective connection means (40, 52, 54) for selectively connecting it to the upstream and downstream ends (48A, 48B) of a “heater” branch (48) of a cooling liquid circuit (46) of an exothermal part of the vehicle. The exothermal part is preferably a heat engine of the vehicle. The invention is applicable to air conditioning a motor vehicle cabin.

Abstract: The device includes a heat pump integrating a refrigerant circuit taking calories from a cold source to transfer them towards a warm source. The device also includes a heat-conducting fluid/air thermal exchanger called external exchanger (30), located in the vehicle engine compartment (34), the heat-conducting fluid being either the refrigerant or a heat-conducting fluid in thermal exchange with the cold source refrigerant. The device also includes means of formation of an air flow, preferably a fan (40), circulating through the external exchanger (30) and called outlet air flow, directed from inside the engine compartment (34) to outside the vehicle. Preferably, the fan (40) shall be able to rotate in a first direction to form an air flow directed from outside the vehicle to inside the engine compartment (34) and called inlet air flow, and in a reverse direction to form the outlet air flow.

Abstract: A heat pump system includes a compressor, a heat rejecting heat exchanger, an expansion device, and a heat accepting heat exchanger. A storage tank stores the water that cools the refrigerant in the heat rejecting heat exchanger. A mechanical interface plate positioned between a hot water reservoir and a cold water reservoir in the storage tank reduces heat transfer between the hot water and the cold water. During a water heating mode, cold water from the cold reservoir flows into the heat sink to cool the refrigerant in the heat rejecting heat exchanger. As the water exchanges heat with the refrigerant, the water is heated in the heat sink, exits the heat sink, and flows into the hot reservoir of the storage tank. During a water discharge mode, the hot water in the hot reservoir is removed from the storage tank and flows into a hot water discharge. Cold water from a water source flows into the cold reservoir of the storage tank to refill the storage tank.

Abstract: A cooling device for cooling an object to be processed to a target temperature comprises a plurality of contact members mounted on a placing table, for supporting the object such that the object opposes a top surface of the placing table with an interval, temperature sensors for outputting temperature information of the object supported by the contact members, a first cooling unit for cooling the placing table to a temperature lower than the target temperature to cool the object, a second cooling unit for heating the object cooled by the first cooling unit to a temperature almost equal to the target temperature, and a contrast circuit for performing a switching operation between cooling by the first cooling unit and heating by the second cooling unit on the basis of the temperature information from the temperature sensors.

Abstract: The object of the invention is to provide a thermal complementary (combination of heat supply and heat discharge) system which can complement heat without the restriction of area of a region to be supplied with heat. An endless multiplex helical loop is formed to complement the heat produced in a region such as plants and regional facilities on a reciprocal basis, and the water is not circulated forcibly but achieves heat transfer in the helical loop. Liquid or slurry-like water is sealed in the annular endless channel (endless loop) without forcibly circulated. Therefore, loop diameter of the annular endless channel, that means the area of the region, is not limited. The water forms temperature zones in the endless helical loop, the temperature being different per each component loop. Distributed cryogenic sources and thermal sources are thermally connected to said multiplex helical loop so that heat (i.e. water) can be taken in or discharged to or from said cryogenic or thermal sources.

Abstract: A heat pump and air conditioning system for a vehicle that has at least one coolant loop selectively connecting an engine cooling system with a heater core, a first coolant/refrigerant heat exchanger, and/or a second coolant/refrigerant heat exchanger, in order to warm a passenger compartment of the vehicle. The system also includes a refrigerant loop that includes a first expansion device between a condenser and evaporator, and a second expansion device between the first coolant/refrigerant heat exchanger and the second coolant/refrigerant heat exchanger. The refrigerant loop provides for cooling of the passenger compartment of the vehicle, as well as operating as a heat pump, together with the at least one coolant loop, to provide heat to the vehicle passenger compartment.

Abstract: Disclosed is a packaged chilling system for providing chilled water to an air conditioning system for a building that includes: a duct system; an air handling system; and a water chilling system; wherein: the duct system is in operable communication with a building that has a plurality of rooms, at least one of the rooms having a sensor for detecting the room air temperature in the room, the duct system comprising at least one supply duct for directing low temperature air from the air handling system to the building and at least one return duct for directing high temperature air from the building to the air handling system; the air handling system includes a plurality of air handling units, each air handling unit comprising an air inlet for receiving high temperature air from the building, a cooling coil that includes at least one conduit through which chilled water flows, the cooling coil having multiple passes and positioned for heat transfer contact with the high temperature air, and a fan for increasing t

Abstract: According to the method, heat delivered to the cabin (H) comes from a hot source (18) of a heat pump (12) comprising a main refrigerant circuit (14) taking heat from a cold source (16) to transfer it to the hot source (18). Heat taken from the cold source (16) comes from a flow of air recycled from the cabin. The cold source (16) has a refrigerant/coolant heat exchanger (24) thermally coupling the main circuit (14) to a first secondary coolant circuit (26) capable of being selectively connected to an outside heat exchanger (30) and to a cold heat exchanger (32). Air flow circuits have an inlet for admitting air recycled from the cabin, an outlet for delivering air to the outside of the vehicle, first connection means for connecting the recycled air inlet to the upstream end of the cold heat exchanger (32), and second connection means for connecting the downstream end of said cold heat exchanger (32) to the outside outlet.

Abstract: The invention concerns a device for storing a two-phase coolant fluid (4) designed to circulate in a heat transfer circuit (10), comprising: a compartment (2) for storing and regenerating the two-phase coolant fluid; at least an indirect heat exchange means (6) between a refrigerant and the coolant fluid (4); a circulating means (8) to circulate the coolant fluid (4) in the heat transfer circuit (10); a two-phase recycling and cooling circuit for the coolant fluid (4). Said device comprises: another compartment for ice slurry conditioning (20), connected to the heat transfer circuit (10); means for introducing part of the coolant fluid (4), enriched in solid phase, into said other compartment; a drawpoint (24) on the storage and regeneration compartment (2), and means for injecting (26, 28) the coolant fluid in liquid phase, into said other compartment; and a mixing member, co-operating with said other compartment.

Abstract: A system and method are provided for refrigerating at least one enclosure, such as an aircraft galley cart. The system includes at least one air-to-liquid heat exchanger, an eutectic thermal battery, a liquid-to-direct heat exchanger and at least one liquid-to-direct heat pump. The air-to-liquid heat exchangers are in thermal communication with the interiors of the enclosures. The thermal battery is in fluid communication with the air-to-liquid heat exchangers via a first coolant loop. The liquid-to-direct heat exchanger and the liquid-to-direct heat pumps are in fluid communication with the eutectic thermal battery via a second coolant loop, and in thermal communication with a cold heat sink, such as an aircraft fuselage skin structure. The system can controllably operate in direct passive, indirect passive, direct active and/or an indirect active modes whereby a coolant can selectively flow in the first and/or second coolant loops to thereby refrigerate the enclosures.

Abstract: A system and method are provided for refrigerating at least one enclosure, such as an aircraft galley cart. The system includes at least one air-to-liquid heat exchanger, an eutectic thermal battery, a liquid-to-direct heat exchanger and at least one liquid-to-direct heat pump. The air-to-liquid heat exchangers are in thermal communication with the interiors of the enclosures. The thermal battery is in fluid communication with the air-to-liquid heat exchangers via a first coolant loop. The liquid-to-direct heat exchanger and the liquid-to-direct heat pumps are in fluid communication with the eutectic thermal battery via a second coolant loop, and in thermal communication with a cold heat sink, such as an aircraft fuselage skin structure. The system can controllably operate in direct passive, indirect passive, direct active and/or an indirect active modes whereby a coolant can selectively flow in the first and/or second coolant loops to thereby refrigerate the enclosures.

Abstract: A tank is provided which can store, while cooling, drinks or other liquids, such as milk, having a storage temperature close to 0.degree. C. or below.

Abstract: This invention provides an auxiliary heating and cooling circuit for an automobile interior compartment. The auxiliary circuit uses a circulated liquid heat transfer fluid such as the same liquid used for the vehicle engine system. In a cooling mode, the liquid is circulated through a heat exchanger within the vehicles air-conditioning circuit. The cooled fluid flows to an auxiliary heat exchanger where cooled air is made available. In a heating mode, the auxiliary system is connected directly with the engines cooling system where the hot engine coolant flows through the auxiliary heat exchanger for interior compartment heating.

Abstract: A heat exchanger module includes a glycol coolant circuit adapted to function as a heat pump for the heating of the interior passenger compartment of the motor vehicle with a glycol/water mixture as the heat carrier, a refrigerant circuit, and a glycol/refrigerant heat exchanger positioned between and interconnecting the cooling circuit and the refrigerant circuit, wherein the glycol/refrigerant heat exchanger has integrated connection lines for heat transfer from the coolant circuit to the refrigerant circuit.

Abstract: The invention relates to an air-conditioner having a heat exchanger, such as an evaporator, for example, with a reservoir for a cold storage medium.

Abstract: A thermal energy storage unit is provided in connection with an air conditioning or refrigeration condenser. Working fluid waste heat is stored in the thermal energy storage unit during at least a relatively hot part of the day. Heat stored in the thermal energy storage unit is then rejected to the air during a cooler period, such as night. By rejecting the stored heat directly to the atmosphere, there is no need to provide an energy-consumptive refrigeration cycle for cooling the thermal storage medium material. In this way, a refrigeration system compressor has a reduced load and/or reduced duty cycle during hot parts of the day and relatively less energy can be used during high-demand times when energy may be more expensive.

Abstract: An air-conditioning system is designed at least for an air-conditioning mode for cooling a thermal control medium (13) and a heat-pump mode for heating the thermal control medium. The system comprises a refrigerant circuit with a compressor (1) and an evaporator (8), a coolant circuit with a heat-generating unit (10) to be cooled and a heater (12) for heating the thermal control medium, and also a first refrigerant/coolant heat exchanger (3) functioning on the refrigerant side as a condenser/gas cooler. The evaporator is formed by a second refrigerant/coolant heat exchanger (8). A cooling body (14) for cooling the thermal control medium is connected downstream of heat exchanger (8) on the coolant side.

Abstract: The present invention relates to a rapid cooling apparatus for rapidly cooling objects at room temperature via conductive heat transfer and convective heat transfer as well. The rapid cooling apparatus comprises: means having a storage space disposed inside a first storage housing for storing the objects to be cooled and cold material bags disposed around the received objects to be cooled; means for driving the storage means in a direction; and means for spacing the storage and driving means from a second storage housing. The invention provides a user with convenience via rapid cooling and also can enhance cooling efficiency.

Abstract: A laminated heat exchanger includes a plurality of laminated plates, in which a plurality of heat transfer tubes bent into a zigzag form are arranged in contact with each surface of each of the plates, and the plates are laminated so that the heat transfer tubes on one of adjacent plates intersect with the heat transfer tubes on the other of the adjacent plates.

Abstract: A vehicle heating and cooling system having a first coolant loop selectively connecting an engine cooling system with a heater core or a first coolant/refrigerant heat exchanger, a second coolant loop connecting a second coolant/refrigerant heat exchanger and the heater core to warm a passenger compartment of the vehicle. The system also includes a refrigerant loop that provides for conventional cooling of the passenger compartment of the vehicle, as well as operating as a heat pump, together with the coolant loops, to provide heat to the vehicle passenger compartment.

Abstract: A vehicle heating and cooling system having both a coolant loop with a heater core employing a coolant to warm a passenger compartment of the vehicle, and a refrigerant loop with an air conditioning system for cooling the passenger compartment of the vehicle. The refrigerant loop and coolant loop can also operate together where the air conditioning system is operating as a heat pump and drawing heat from the coolant loop.

Abstract: A laminated heat exchanger includes a plurality of laminated plates, in which a plurality of heat transfer tubes bent into a zigzag form are arranged in contact with each surface of each of the plates, and the plates are laminated so that the heat transfer tubes on one of adjacent plates intersect with the heat transfer tubes on the other of the adjacent plates.

Abstract: A thermal energy storage unit is provided in connection with an air conditioning or refrigeration condenser. Working fluid waste heat is stored in the thermal energy storage unit during at least a relatively hot part of the day. Heat stored in the thermal energy storage unit is then rejected to the air during a cooler period, such as night. By rejecting the stored heat directly to the atmosphere, there is no need to provide an energy-consumptive refrigeration cycle for cooling the thermal storage medium material. In this way, a refrigeration system compressor has a reduced load and/or reduced duty cycle during hot parts of the day and relatively less energy can be used during high-demand times when energy may be more expensive.

Abstract: A temperature controlled gravity feed fountain solution supply apparatus for a printing unit of a printing press. The invention helps to maintain a consistent, cool temperature within the fountain solution pan of a gravity feed fluid supply apparatus. The apparatus includes an insulated, airtight fountain solution supply tank connected to a lower fountain solution pan by a vertical insulated supply tube. The tank has cooling coils arranged in M-shaped layers, each of the layers being supported by a perforated, heat-conducting cooling plate. The pan has a supply pool that communicates with an elongated dispersement tube having openings which serve to circulate fountain solution about three cooling fins connected to, and extending the length of the dispersement tube. Alternatively, the solution pan has a separate cooling coil and cooling control.

Abstract: In a device for air temperature control in a vehicle either by use of a valve unit to control a portion of coolant and thereby the temperature of air flowing from the temperature control element, by a temperature of coolant controlled by said thermostat, or by speed of said fan, individually and independently from one another.

Abstract: The invention relates to a device for cooling a vehicle interior with a secondary circuit (26) for transferring the cold produced in an evaporator (24) of a primary refrigerating circuit (14) of a refrigerating unit (12) by means of a refrigerating medium to at least one heat transfer device (34) for cooling the air to be fed into the vehicle interior, the secondary circuit (26) having a main circuit (36) and an auxiliary circuit (40) containing the heat transfer device (34), which are coupled by a four-way valve (56), by means of which an adjustable proportion of the flow of refrigerating medium can be diverted from the main circuit (36) and fed into the auxiliary circuit (40). In order to provide an improved device for cooling, in particular one that can be produced at a more reasonable cost, it is proposed that an inner heat exchanger (80) should be provided in the auxiliary circuit (40), allowing heat exchange to take place between a feed (60) and a return (62).

Abstract: A two-stage refrigeration system includes an intermediate slurry tank for receiving and storing a refrigerant vapor and a slurry of solid sublimatable refrigerant particles in a liquid. The intermediate slurry tank has a first outlet for outflow of the slurry from the tank, a second outlet for outflow of the refrigerant vapor, a first inlet for receiving at least the liquid, and a second inlet for receiving the refrigerant. The refrigeration system also includes a compression system having a first low pressure inlet and second intermediate pressure inlet, and having a high pressure outlet. A conduit connects the second outlet of the intermediate slurry tank to the intermediate pressure inlet of the compression system so as to compress the vapor with less energy than would be needed to compress low pressure refrigerant vapor.

Abstract: A device for air temperature control in a vehicle has a unit forming a first circuit for circulation of an coolant, a unit forming a second circuit for circulation of a refrigerant, a unit for connecting the first circuit with an engine for heating the coolant, a unit for providing a heat exchange between the second circuit and the first circuit for cooling the coolant, a single air temperature regulating element, and a unit for alternatively connecting the first a unit to the air temperature regulating element so that when the coolant is heated from the engine and supplied through the first a unit the air temperature regulating element heats air in the vehicle, or connecting the second a unit with the common air temperature regulating element so that when the coolant in the first circuit is cooled by heat exchange with the refrigerant of the second circuit and the cooled coolant is supplied to the air temperature regulating element to cool air in the vehicle, and a heat exchanger which provides a heat exchan

Abstract: A check valve 27 for preventing backflow of a coolant 5 in outside pipes 14a and 14b into a tank 10 when operation is stopped, a cubical expansion relief valve 28 for suppressing increase of pressure of the coolant in the outside pipes 14a and 14b, and a purge check valve 29 for blowing compressed gas into the outside pipes 14a and 14b to recover the coolant are connected to a primary-side flow path for sending the coolant 5 to a heat load 1, a flow rate control valve 31 for controlling a flow rate or pressure of the coolant is connected to a secondary-side flow path for receiving the coolant 5 from the heat load 1, a bypass flow path 35 is provided between the primary-side flow path and the secondary-side flow path, and a bypass flow rate control valve 36 which opens when the pressure of the coolant in the outside pipes 14a and 14b exceeds prescribed pressure is connected in the bypass flow path 35.

Abstract: A vehicle climate control system having a separate control for first and second separate areas of the vehicle. The climate control system includes a three-fluid heat exchanger having a first path with a first inlet and first outlet, and a second path with a second inlet and second outlet. The first path communicates refrigerant between the first inlet and first outlet and the second path communicates coolant between the second inlet and second outlet without the refrigerant and the coolant being mixed. A primary refrigerant loop is interconnected by a refrigerant line with the refrigerant line being connected to the inlet and outlet of the first path. A secondary loop is connected to the inlet and the outlet of the second path such that the coolant flows through the three-fluid heat exchanger to selectively cool or heat the second area of the vehicle by heat transfer within the three-fluid heat exchanger.

Abstract: The invention relates to a device for cooling a vehicle interior with a secondary circuit (26) for transferring the cold produced in an evaporator (24) of a primary refrigerating circuit (14) of a refrigerating unit (12) by means of a refrigerating medium to at least one heat transfer device (34) for cooling the air to be fed into the vehicle interior, the secondary circuit (26) having a main circuit (36) and an auxiliary circuit (40) containing the heat transfer device (34), which are coupled by a four-way valve (56), by means of which an adjustable proportion of the flow of refrigerating medium can be diverted from the main circuit (36) and fed into the auxiliary circuit (40). In order to provide an improved device for cooling, in particular one that can be produced at a more reasonable cost, it is proposed that an inner heat exchanger (80) should be provided in the auxiliary circuit (40), allowing heat exchange to take place between a feed (60) and a return (62).

Abstract: A temperature control device for a constant temperature chiller unit or a vending machine is provided. Thermal medium fluid such as water in the chiller unit is accurately controlled under starting mode, heating mode and cooling mode. Thermal medium fluid such as air in the vending machine is conveniently controlled in winter mode and summer mode. In the device, a heat exchanger is interposed within a compression circuit, and a bypass circuit is disposed at the downstream side of a pump so that through the bypass circuit thermal medium fluid receives heat from the heat exchanger. Thus, the temperature of thermal medium fluid supplied to an external secondary heat load is controlled.

Abstract: The device of the invention comprises a closed circuit (10) in which a refrigerant fluid circulates between an evaporator (12) and a condenser (14) which are respectively in thermal contact with a cold-liquid duct (22) and a hot-liquid duct (24). Changeover-switching means (34, 36) put these two ducts into communication either with a first loop (26) travelled by a liquid and containing a heat exchanger (28) capable of being swept by an airflow (F1), or with a second loop (38) travelled by a liquid and comprising a heat exchanger (42) suitable for being swept by an airflow (F2) to be sent into the passenger compartment (H) . The heat exchanger (42) of the second loop (38) can thus heat up or cool the airflow (F2).

Abstract: An indoor ice rink facility is provided with a dehumidifier coil connected with the ice rink refrigeration coils in a secondary refrigerant loop and a reheat coil coupled with the primary refrigerant loop for maintain the ice sheet and controlling the humidity of the facility in a single system.

Abstract: A cooling device for cooling an object to be processed to a target temperature comprises a plurality of contact members mounted on a placing table, for supporting the object such that the object opposes a top surface of the placing table with an interval, temperature sensors for outputting temperature information of the object supported by the contact members, a first cooling unit for cooling the placing table to a temperature lower than the target temperature to cool the object, a second cooling unit for heating the object cooled by the first cooling unit to a temperature almost equal to the target temperature, and a contrast circuit for performing a switching operation between cooling by the first cooling unit and heating by the second cooling unit on the basis of the temperature information from the temperature sensors.

Abstract: In a marine vessel (such as a yacht or other boat) in the range of 45-75 feet a chilled water air conditioning system is provided having a significant advantage over split central systems. Utilizing two-four water chilling modular units the chilled water capacity only needs to accommodate about 75-90% of the calculated BTU heat load for the vessel, while the air handlers are rated at about 100% of the calculated BTU heat load. Each modular unit has no refrigerant connection exterior of the casing containing all of its components, including a condenser coil, evaporator coil, compressor, reversing valve, and expansion tubing, all operatively connected to each other by refrigerant lines within the casing. Chilled water is circulated into and out of the evaporator coil by an exterior pump and expansion tank operatively connected to each of the modular units, the chilled water passing through a coil unit of an air handler.

Abstract: Air conditioning installation for a motor vehicle with a cold reservoir, which can be charged via an evaporator of a primary circuit, and with a heat exchanger which can deliver cold stored in the cold reservoir via a secondary circuit to the interior of the vehicle, in which the secondary circuit contains at least one further heat exchanger, which is in a heat-exchanging relationship with the evaporator of the primary circuit and preferably also with the cold reservoir.

Abstract: A tube and shell evaporator operable at near freezing includes a temperature sensor that senses the temperature of chilled water discharging from one or just a few of the very coldest tubes, whereby the sensed temperature is less than the average leaving chiller water temperature (LCWT). The result provides an exceptionally low LCWT, which can be especially desirable in district cooling systems where the chilled water is usually piped a great distance.