Abstract: A cooling or heating system creating an open temperature-controlled zone for personnel, the system having HVAC equipment for producing and delivering cooled or heated air, a lower air outlet disposed in a deck member, an upper air outlet disposed in a wall member, and a central air intake disposed between the lower and upper air outlets, whereby conditioned air expelled from the lower and upper air outlets is recycled through the central air intake and HVAC equipment.

Abstract: A system for decreasing the response time of a vehicle heating ventilation and air conditioning (“HVAC”) system is described. A fan circulates air through a HVAC casing. Circulating air through the HVAC casing creates a high-pressure zone within the HVAC casing. A thermal expansion valve is located outside of the HVAC casing. An outlet port is located on the HVAC casing to allow air to be ported from the high-pressure zone toward the thermal expansion valve. Air ported from the high-pressure zone may be directed toward the thermal expansion valve by a nozzle. The air increases the temperature of the thermal expansion valve and allows additional refrigerant to flow through the thermal expansion valve.

Abstract: A microchannel type heat exchanger may include a first heat exchanger and a second heat exchanger, in which a plurality of flat tube may be provided, a first path defined in flat tubes provided in the first heat exchanger, in which refrigerant flows in a first direction, a second path defined in flat tubes provided in the first heat exchanger, in which refrigerant, from the first path, flows in a second direction opposite to the first direction, a third path defined in the flat tubes provided in the first heat exchanger and a portion of the flat tubes provided in the second heat exchanger, in which refrigerant, from the second path, flows in a third direction opposite to the second direction, and a fourth path defined in the flat tubes provided in the second heat exchanger, in which refrigerant, from the third path, flows in a fourth direction opposite to the third direction.

Abstract: Autonomic cooling of a substrate is achieved using a porous thermal protective layer to provide evaporative cooling combined with capillary pumping. The porous thermal protective layer is manufactured onto the substrate. A vascular network is integrated between the substrate and the protective layer. Applied heat causes fluid contained in the protective layer to evaporate, removing heat. The fluid lost to evaporation is replaced by capillary pressure, pulling fluid from a fluid-containing reservoir through the vascular network. Cooling occurs as liquid evaporates from the protective layer.

Abstract: An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include an EHP outdoor device configured to drive a first compressor using electric power, and having a first heat exchanger that evaporates or condenses a refrigerant; a GHP outdoor device having an engine configured to drive a second compressor using a burned gas and a second heat exchanger that evaporates or condenses the refrigerant; and a flow rate balancing device configured to connect the first heat exchanger with the second heat exchanger, and to control a flow rate of the refrigerant through the EHP outdoor device and the GHP outdoor device.

Abstract: Various embodiments disclosed herein related to a multistage oil separator. The oil separator includes a housing having a nozzle and defining an internal space and an oil outlet; a body disposed within the internal space, the body including a mixed fluid inlet configured to receive a coolant and oil mixture and a nozzle that receives at least a portion of the coolant and oil mixture from the mixed fluid inlet and discharges coolant and oil into the internal space of the housing; and, a wall disposed proximate to the nozzle of the body, wherein at least a portion of the discharged coolant and oil impacts the wall to direct the at least the portion of coolant and oil towards the nozzle of the housing. The oil separator functions to separate the coolant from the oil discharged from a compressor in a cooling system.

Abstract: A vehicle air-conditioner safety device includes a controller which, in a case in which an abnormality has occurred in a heating device that heats coolant with a heater, determines whether or not the abnormality is a restorable abnormality or a non-restorable abnormality. When the abnormality is determined to be the restorable abnormality, it is determined whether or not the restorable abnormality has been removed. Heating by the heater is prohibited when the restorable abnormality or the non-restorable abnormality has occurred. Heating by the heater is restored when the restorable abnormality has been removed after heating by the heater is prohibited due to occurrence of the restorable abnormality.

Abstract: A refrigerating appliance includes a refrigerant line having a compressor and a condenser. A thermal exchange media is delivered from the condenser and through the refrigerant line to at least a freezer evaporator of a plurality of evaporators, wherein the thermal exchange media leaving the freezer evaporator defines spent media that is returned to the compressor. A multi-directional outlet valve selectively delivers the thermal exchange media to the freezer evaporator, wherein the multi-directional outlet valve also selectively delivers the thermal exchange media to at least one secondary evaporator of the plurality of evaporators to define a partially-spent media that is delivered to the freezer evaporator.

Abstract: Two-phase immersion cooling systems can be used to cool electronic components submerged within a dielectric working fluid, but are susceptible to costly losses of working fluid when the cooling systems are opened to allow access to the electronic components for service or replacement. By selectively sealing certain portions of the cooling systems, loss of vaporized working fluid can be reduced.

Abstract: A magnetocaloric thermal generator having a primary circuit fluidically connecting first and second stages of magnetocaloric elements using a heat transfer primary fluid flowing alternately back and forth. The stages being subjected to variable magnetic field of a magnetic system. The primary system includes a cold side and a hot side to which the magnetocaloric elements of the stages are fluidically connected. At least the cold side of the primary circuit has an outlet point connected to another point of the primary circuit, referred to as the injection point, on the hot side by a bypass pipe allowing the primary fluid to be displaced only from the outlet point towards the injection point. The magnetocaloric thermal generator is used in a method for cooling the secondary fluid.

Abstract: A single-package, wall-mount air conditioner is provided with an economizer unit having a pair of vertical conduits for delivering fresh outside air to a pair of blowers and a damper system that can be selectively positioned to open and close the conduits. The damper system also opens and closes return air recirculation openings through which return air is delivered to the blowers. When the air conditioner is operating in an economizer cooling mode, the return air recirculation openings are partially or completely closed and some or all of the return air is discharged outwardly and upwardly from the air conditioner in a manner to impede any entrainment of the discharged return air with the fresh outside air that is entering the air conditioner.

Abstract: The present invention relates to a method and apparatus for super-cooling a contained fluid by exposing a portion of the contained fluid to a temperature below a freezing point of the liquid while exposing a second portion of the contained fluid to a warmer temperature. The present invention establishes a temperature differential between the ambient air or fluid temperature within the cooler and a portion of a receiving element which receives a beveraged container. By creating a temperature differential, convection flow of the beverage within the packaged beverage occurs allowing the liquid beverage to achieve a temperature below its freezing point while being maintained in a liquid state.

Abstract: A heat pump device includes a compression mechanism for compressing refrigerant, a motor for driving the compression mechanism, a shell housing the compression mechanism and the motor, a discharge muffler located outside the shell, a first pipe connecting the compression mechanism to the discharge muffler, and a thermal insulator (a first thermal insulating material and a second thermal insulating material). The shell and the discharge muffler are spatially located next to each other without being in contact with each other. The thermal insulator is at least partially located in a space where a distance between an outer surface of the shell and an outer surface of the discharge muffler is minimum.

Abstract: When performing dehumidification heating of a space to be air-conditioned, a refrigeration cycle device is switched to a refrigerant circuit in which a flow of a refrigerant flowing out of an interior radiator is branched, and one of the branched refrigerants is decompressed by an interior expansion valve to evaporate in an interior evaporator, while the other of the branched refrigerants flows into a high-pressure side refrigerant passage of an internal heat exchanger and is then decompressed by an exterior expansion valve to evaporate in an exterior heat exchanger. Further, in the refrigerant circuit, a flow of the refrigerant flowing out of the interior evaporator and a flow of the refrigerant flowing out of the exterior heat exchanger are merged into a low-pressure side refrigerant passage of the internal heat exchanger.

Abstract: A heat exchanger having a heat exchanger core which is configured as a plate stack has a flange plate including at least one upper partial plate facing the heat exchanger core and at least one lower partial plate facing away from the heat exchanger core. The flange plate can include a supercooling passage which is bounded by at least one partial plate in the stacking direction of the partial plates and which receives a flow of refrigerant during the operation of the heat exchanger. A high variability can be provided thanks to the compact and flexible design, by means of which the most diverse of requirements can be achieved with no major design changes.

Abstract: A refrigeration apparatus includes a compressor, a heat-source-side heat exchanger operable as a refrigerant evaporator or radiator, and a usage-side heat exchanger operable as a refrigerant evaporator or radiator. The heat-source-side heat exchanger is disposed inside a heat source unit having an exhaust port and an outdoor fan in an upper part, and an intake port in a side part. The heat-source-side heat exchanger includes first and second heat-source-side heat exchangers. Adjustable first and second heat-source-side flow rate adjusting valves are connected to liquid sides of the first and second heat-source-side heat exchangers, respectively. In a defrost operation in order to defrost the first and second heat-source-side heat exchangers, the opening degrees of the first and second heat-source-side flow rate adjusting valves are controlled so as to achieve a defrost flow rate ratio at which more refrigerant flows to the second heat-source-side heat exchanger than during an air-cooling operation.

Abstract: The duct-type indoor unit of an air conditioner includes: a casing including a first surface and a second surface opposing each other, an inlet duct connection part which is formed in the first surface and to which an inlet duct is connected, and an outlet duct connection part which is formed in the second surface and to which an outlet duct is connected; a partition member partitioning interior of the casing into a first space on an inlet side and a second space on an outlet side, the partitioning member having an opening communicating the first space with the second space; a heat exchanger arranged inside the first space; and a centrifugal fan having an impeller with backward curved blades, the impeller being positioned inside the second space to suck in air in the first space through the opening. The impeller has a rotating shaft parallel to the first surface.

Abstract: A sensor supply tube assembly is provided for disposition within a compressor outlet through which a main flowpath is defined and a sensor port transversely coupled to the compressor outlet. The sensor supply tube assembly includes first and second tubes. The first tube is formed to direct main flowpath fluid from the compressor outlet and through a portion of the sensor port and includes first and second ends disposed within the sensor port and the compressor outlet, respectively, and a curved section interposed between the first and second ends. The second tube includes a sleeve tightly fittable between the first end and the sensor port and a base. The base has an exterior surface from which the sleeve extends and which is disposed and configured to non-rotatably abut with an interior surface of the compressor outlet.

Abstract: In certain embodiments, a thermoelectric heat pump includes a heat transfer region having an array of thermoelectric modules, a waste channel in substantial thermal communication with a high temperature portion of the heat transfer region, and a main channel in substantial thermal communication with a low temperature portion of the heat transfer region. An enclosure wall provides a barrier between fluid in the waste channel and fluid in the main channel throughout the interior of the thermoelectric heat pump. In some embodiments, the waste fluid channel and the main fluid channel are positioned and shaped such that differences in temperature between fluids disposed near opposite sides of the enclosure wall are substantially decreased or minimized at corresponding positions along the channels.

Abstract: A heat exchanger for a marine engine has a housing with an internal cavity. Twisted tubes snake back and forth inside the cavity and carry a first fluid to cool a second engine cooling fluid flowing through the cavity. Each of the twisted tubes has a plurality of ridges to increase the surface area of the tube exposed to the second fluid. Dividers inside the cavity direct the flow of the second fluid through the cavity. The housing may have a removable cover to access the housing cavity.