Abstract: An air conditioning apparatus includes a plurality of heat source apparatuses having heat source apparatus side heat exchangers and compressors, one or a plurality of indoor units having flow rate control devices and indoor unit side heat exchangers, at least two main pipes for performing connection-piping between a plurality of heat source apparatuses and one or a plurality of indoor units, a tubular distributor for branching the refrigerant from the main pipe flowing from the inlet to a plurality of outlets to distribute into a plurality of heat source apparatuses, and connection piping for connecting the plurality of heat source apparatuses and distributor respectively. Among a plurality of heat source apparatuses, the distributor is fixedly disposed at a specified position and in a specified direction against one heat source apparatus.

Abstract: In an evaporator unit for a refrigerant cycle device, an evaporator is connected to an ejector to evaporate refrigerant to be drawn into a refrigerant suction port of the ejector or the refrigerant flowing out of the outlet of the ejector. The evaporator includes a plurality of tubes in which the refrigerant flows, and a tank configured to distribute the refrigerant into the tubes or to collect the refrigerant from the tubes. The ejector is located in the tank, and the nozzle portion is brazed to the tank to be fixed into the tank. The tank may be a header tank directly connected to the tubes or may be a separate tank separated from the header tank.

Abstract: A cooling system of a battery which efficiently cools a high voltage battery which is mounted in an electric vehicle or a hybrid vehicle so as to maintain battery performance by using a refrigeration cycle of an air-conditioning system, which is provided with an electric compressor, outside heat exchanger, inside heat exchanger, and a control device. A refrigerant path of the air-conditioning system for running refrigerant is provided with a branch path having a heat exchanger which bypasses the inside heat exchanger, a medium path connected to the heat exchanger runs another refrigerant for cooling the battery, control valves are provided which adjust the amounts of the refrigerant which flows to the refrigerant path and the branch path, and, when the control valves run the refrigerant to both the refrigerant path and the branch path, the control device increases the speed of the electric compressor.

Abstract: An heat exchanger for use in a vapor compression system is disclosed and includes a shell, a first tube bundle, a hood and a distributor. The first tube bundle includes a plurality of tubes extending substantially horizontally in the shell. The hood covers the first tube bundle. The distributor is configured and positioned to distribute fluid onto at least one tube of the plurality of tubes.

Abstract: An evaporator includes a refrigerant inlet header section, a refrigerant outlet header section, and a refrigerant circulation path connecting the two header sections. A refrigerant inlet-outlet member composed of a first plate, a second plate, and an intermediate plate is joined to the two header sections. The refrigerant inlet-outlet member has an inflow channel whose one end communicates with the refrigerant inlet of the refrigerant inlet header section and whose other end is opened to a rear edge of the refrigerant inlet-outlet member, and an outflow channel whose one end communicates with the refrigerant outlet of the refrigerant outlet header section and whose other end is opened to the rear edge. The first and second plates each have inflow-channel-forming and outflow-channel-forming outward swelled portions. Cutouts and a through hole are formed in the intermediate plate such that the inflow channel and the outflow channel cross each other.

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: A heat medium relay unit and an air-conditioning apparatus or the like are provided that are compact and have improved serviceability while achieving energy saving. A heat medium relay unit according to the invention includes heat medium delivering devices and heat medium flow switching devices (first heat medium flow switching devices and second heat medium flow switching devices) that are provided so as to be detachable from a predetermined side.

Abstract: An evaporator unit includes an evaporator configured to evaporate a refrigerant, and a capillary tube configured to decompress the refrigerant. The capillary tube has two longitudinal ends bonded to the evaporator. At least one position of a middle portion between the two longitudinal ends of the capillary tube is fixed to the evaporator by press-contacting the evaporator. Therefore, it can prevent a crack from being caused at the bonding portions of the two longitudinal ends of the capillary tube.

Abstract: The invention concerns a refrigeration system comprising a refrigerant circuit which comprises several evaporator paths and a distributor (5) which distributes the refrigerant on the evaporator paths. The aim of the invention is to improve the operation of said refrigeration system in a simple manner. According to the invention, the distributor (5) comprises a controllable valve (12) for each evaporation path.

Abstract: An evaporator, applicable to a two-stage expansion cooling system, is used for receiving a high-pressure liquid working fluid. The evaporator includes a thermal-conductive block having a channel system. The channel system includes a high-pressure channel, a low-pressure channel, and a second stage expansion channel. The second stage expansion channel has an input end and an output end. The input end is communicated with the high-pressure channel. The output end is communicated with the low-pressure channel, and has a cross-sectional area smaller than that of the low-pressure channel. The high-pressure liquid working fluid flows into the thermal-conductive block from the high-pressure channel, and then enters the second stage expansion channel through the input end. A part of the high-pressure liquid working fluid flowing out of the output end expands into a saturated low-pressure liquid working fluid and enters the low-pressure channel.

Abstract: An evaporator includes two header tanks and a plurality of heat exchange tubes disposed therebetween. The interior of a refrigerant inlet header section of the first header tank is divided into two spaces by a first flow diverging plate. The heat-exchange-tube-side space of the refrigerant inlet header section is divided into a plurality of sections by a first partition plate. Flow diverging openings are provided in portions of the first flow diverging plate facing the sections. The interiors of first and second intermediate header sections of the second header tank are each divided into sections, equal in number to those of the refrigerant inlet header section.

Abstract: A leeward upper header portion of an evaporator includes first through third sections which communicate with upper ends of heat exchange tubes of first through third tube groups of a leeward tube row. The second tube group, which is an upward flow tube group, and the third tube group, which is a downward flow tube group, form a tube group set. A baffle plate is provided in the second section to be located on the side toward the third section. The baffle plate divides a portion of the interior of the second section into upper and lower spaces and prevents flow of refrigerant toward the upper space. A flow prevention member is provided below the baffle plate so as to prevent flow of refrigerant from the second section into the third section. These two sections communicate with each other in a region above the baffle plate.

Abstract: A space conditioning system comprising an evaporator subunit (ES) and control subunit (CS). The ES includes at least three evaporator stages in a pathway of air flow through the ES. First and second stages are adjacent and have major surfaces substantially parallel to each other. A third stage is located in the pathway before the first stage. A major surface of the third stage covers the major surface of the first stage in a same pathway direction. The major surfaces are substantially perpendicular to the pathway. The CS is configured to operate the evaporator subunit in at least one of two partial load cooling modes. In a first mode, the CS causes refrigerant to circulate through the first and second but not through the third stage. In a second mode, the control subunit causes the refrigerant to circulate through the first and third stage but not through the second stage.

Abstract: An evaporator unit includes a first heat exchanger configured to perform heat exchange between refrigerant flowing thereinto from a refrigerant inlet and air, a bypass passage through which the refrigerant flowing from the refrigerant inlet flows while bypassing the first heat exchanger, a second heat exchanger configured to perform heat exchange between air and mixed refrigerant in which the refrigerant after passing through the first heat exchanger and the refrigerant having passed through the bypass passage are mixed, and a flow amount adjustment portion configured to adjust a flow amount of the refrigerant flowing through the first heat exchanger and a flow amount of the refrigerant flowing through the bypass passage. Accordingly, the first heat exchanger and the second heat exchanger can be configured to have respectively portions in which a dryness of the refrigerant is in a range between 0.6 and 0.9.

Abstract: The invention proposes a pressure-reducing module for an air conditioning circuit (10) through which a supercritical refrigerant flows. The module is connected to the circuit via one inlet and two outlets. The module comprises a pressure-reducing device (120), and a distribution valve (16) connected to the pressure-reducing device and to the two outlets. A dual evaporator circuit using such a pressure-reducing module is also proposed. The two evaporators (131, 132) are mounted in parallel. The module receives the fluid coming from a gas cooler via its inlet and delivers the fluid to at least one of the two evaporators (131, 132) via its outlets.

Abstract: A refrigerant flow dividing apparatus of a heat exchanger for refrigerating apparatus is provided with a minimal number of refrigerant flow regulating valves and suppresses increase in the size and costs of the apparatus. Refrigerant is supplied to paths of the heat exchanger for refrigerating apparatus including a heat exchanger for reheat dehumidification via a refrigerant flow divider provided with paths. Each path of the refrigerant flow divider is provided with a refrigerant flow regulating valve, and a predetermined one of the refrigerant flow regulating valves of the paths also functions as a reheat dehumidification valve.

Abstract: The disclosure provides systems and methods for regulating and distributing cooling fluid through a plurality of heat sinks, such as cold plates, using a flow regulator, which sets the total flow rate, in combination with one or more individual orifices that allow further flow distribution as required by individual cold plates, despite flow variations upstream of the orifices. An orifice can be coupled to an orifice holder, which includes a body to support the orifice, and which may be coupled (directly or indirectly) to an inlet of the cold plate. Alternative manners of coupling orifices in the fluid flow besides an orifice holder can be employed. Generally, the flow regulator(s) is coupled with a plurality of orifices and conduits through which the cooling fluid flows. Related system components can be assembled as a module for installation into a cooling system that includes other system components such as a pump, compressor or other pressure sources for the cooling fluid.

Abstract: Disclosed is a gravity flooded evaporator for use with commercial or industrial heating, air conditioning, and ventilation systems, and which does not require integration or use of a conventional, separately field-piped, surge vessel and associated subsystem.

Abstract: An evaporator includes a plurality of flat heat exchange tubes arranged in a left-right direction at a spacing with the widthwise direction thereof pointing forward or rearward, and fins arranged between respective adjacent pairs of heat exchange tubes. The fins have at least front edges thereof projected forwardly outward beyond the heat exchange tubes. Assuming that the amount of projection of the fins beyond the heat exchange tubes is X mm and that the heat exchange tubes are Y mm in thickness in the left-right direction, i.e., in height, X and Y have the relationship of 0.11Y?X?1.0Y. The surfaces of the fins can be drained of condensation water efficiently.

Abstract: A refrigerant cycle device includes a branch portion for branching a flow of refrigerant discharged from a compressor, a first radiator for radiating one high-temperature and high-pressure refrigerant branched at the branch portion, an ejector including a nozzle portion for decompressing refrigerant on a downstream side of the first radiator, a second radiator for radiating the other high-temperature and high-pressure refrigerant branched at the branch portion, a throttle device for decompressing refrigerant on a downstream side of the second radiator, and a suction side evaporator for evaporating refrigerant downstream of the throttle device and for allowing the refrigerant to flow to an upstream side of a refrigerant suction port of the ejector. Furthermore, the first and second radiators are disposed downstream of the branch portion such that a heat radiation amount of refrigerant in the first radiator is smaller than that in the second radiator.

Abstract: A modular evaporator which can be assembled from a number of standard modules is provided. Depending on the requirements, the modular evaporator can be assembled to meet a wide range of design cooling loads. Additionally, the modular evaporator is capable of generating and holding ice for thermal storage purposes, eliminating the need for external ice storage tanks. Furthermore, the heat transfer and thermal storage fluid for the evaporator can simply be water which considerably simplifies the system, lowers the cost, and increases the efficiency of the heat transfer loop.

Abstract: The invention relates to a distribution unit (22) that is able to manage the circulation of a cooling fluid FR in an A/C loop (4). The distribution unit (22) comprises nine inlets E1, E2, E3, E4, E5, E6, E7, E8, E9 of the cooling fluid FR inside the distribution unit (22) and four outlets S1, S2, S3, S4 of the cooling fluid FR outside the distribution unit (22). Each outlet S1, S2, S3, S4 is linked with at least two inlets E1, E2, E3, E4, E5, E6, E7, E8, E9.

Abstract: A refrigerant flow divider is made up of an inlet pipe 12 through which refrigerant Xin flows in, a main body 11 of which the inside is a cavity, and a plurality of branching pipes 13 through which refrigerant Xout flows out. When the length of the above described main body 11 of the flow divider is L mm and the inner diameter of the above described main body 11 of the flow divider is D2 mm, the relationship 2?L/D2?8 holds, and thus, a flow divider can be gained, where discrepancy (variation) in the flow rate ratio in the respective paths for the flow discharged from the outlet of the flow divider and entering the heat exchanger is small and pressure loss is small when there is a change of approximately ±10° in the installation angle, a change in the dryness of the refrigerant at the inlet (0.2 to 0.4) or a change in the flow rate of the refrigerant (50% to 100%).

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 evaporator includes a refrigerant inlet header and a refrigerant outlet header arranged side by side in a front-rear direction, and a refrigerant circulating passage holding the headers in communication. The inlet and outlet headers are provided with caps forming refrigerant inlet and refrigerant outlet, the caps are joined to a pipe joint member having refrigerant inlet and outlet portions in communication with the refrigerant inlet and outlet, the caps or the pipe joint member is provided with a positioning lug which is projecting from its side edge toward the other one and which is fitted with a positioning recess formed in the other one, and the caps and the pipe joint member have flat surfaces to be contact with each other and are brazed such that the lug is engaged with the recess and that the flat surfaces are in contact with each other.

Abstract: A heat exchanger comprising a heat exchange core composed of tube groups in the form of rows arranged in the direction of flow of air through the exchanger, each of the tube groups including a plurality of heat exchange tubes arranged at a spacing. A refrigerant inlet header and a refrigerant outlet header are positioned at the upper end of the core and having respective groups of heat exchange tubes joined thereto. A refrigerant turn tank is disposed at the lower end of the core. The turn tank has its interior divided by a partition wall into a refrigerant inflow header and a refrigerant outflow header. The heat exchange tubes have lower end portions inserted in the headers and are joined to the headers. Refrigerant passing holes are formed in the partition wall. The heat exchange tubes have their lower ends positioned below the lower ends of the holes.

Abstract: An evaporator for a cooling circuit is provided, for cooling at least one heat emitting device by evaporation of a cooling fluid. The evaporator includes a top collector, a bottom collector, and an evaporator body. The evaporator body includes at least one thermoconducting wall that is thermally connectable to the at least one heat emitting device, a plurality of evaporation channels, and a plurality of return channels.

Abstract: A hybrid drive for motor vehicle has at least one combustion engine, an electric machine and an electric energy accumulator (10). The electric energy accumulator (10) is dischargeable by the electric machine during the motor operation and is chargeable by the electric machine during the generator operation thereof. The air conditioning system has at least one compressor (11), a condenser (12) and a main evaporator (13) that provides cooling air (16) to be supplied to a passenger compartment (17) of the motor vehicle. An additional evaporator (18) is connected in parallel to the main evaporator (13) and supplies cooling air (19) to the electric energy accumulator (10) of the hybrid drive.

Abstract: A direct expansion evaporator for making a frozen product from raw material includes a feeding channel, a heat exchange channel thermally communicating with the feeding channel, and a refrigerant flowing within the heat exchange channel for exchanging heat between the raw material within the feeding channel and the refrigerant within the heat exchange channel in an expanded evaporation manner. Therefore, the refrigerant releases the thermal energy via the phase changing from liquid to gaseous state of the refrigerant. The heat exchange channel has a pre-cooling portion for pre-cooling the raw material at a predetermined temperature and a freezing portion for freezing the raw material to a final predetermined temperature of the frozen product in two-stage evaporation manner. Thus, the direction expansion evaporator provides a relatively more efficient way for making the frozen product, so as to increase the quality of the frozen product.

Abstract: An heat exchanger for use in a vapor compression system is disclosed and includes a shell, a first tube bundle, a hood and a distributor. The first tube bundle includes a plurality of tubes extending substantially horizontally in the shell. The hood covers the first tube bundle. The distributor is configured and positioned to distribute fluid onto at least one tube of the plurality of tubes.

Abstract: A supercooling apparatus of a simultaneous cooling and heating type multiple air conditioner comprises a liquid pipe header connected to outdoor heat exchangers, a plurality of branch liquid pipes branched from the liquid pipe header and connected to a plurality of indoor heat exchangers, respectively, and a supercooling mechanism mounted at least one of the branch liquid pipes for cooling refrigerant flowing to the indoor heat exchangers. The liquid refrigerant discharged from the heating-side indoor heat exchangers is supercooled by supercooling heat exchangers, and is then introduced into the cooling-side indoor heat exchangers. Consequently, noise generated from the cooling-side heat exchangers during the simultaneous cooling and heating operation is reduced, and cooling capacity of the multi air conditioner is improved.

Abstract: A refrigerant distribution system has a plurality of chambers formed inside a refrigerant distribution plate, each of the plurality of chambers extending from one end of the refrigerant distribution plate into the refrigerant distribution plate; and a plurality of holes formed in each of the plurality of chambers, the plurality of holes fluidly communicating each of the plurality of chambers with an outside of the refrigerant distribution place. The evaporator may be oriented such that the refrigerant flows horizontally with respect to gravity. The present invention may improve the thermal performance of the evaporator while the evaporator is oriented sub-optimally. Often, with horizontal flow through an evaporator, the refrigerant phases, liquid and vapor, may separate in the manifold, resulting in poor distribution of refrigerant in the evaporator core. The refrigerant distribution plate of the present invention evenly distributes the refrigerant in the core.

Abstract: A method and apparatus for maintaining a relatively constant temperature of a working fluid in an evaporator of a refrigeration system by providing a constant volumetric displacement compressor and a heat exchanger for exchanging heat between the high pressure and low pressure portions of a refrigeration circuit to superheat, and hold substantially constant, the temperature of the refrigerant entering the compressor. In doing this, the pressure of the refrigerant in the low pressure portion of the circuit, including the evaporator, and the mass flow rate of the refrigerant remain substantially constant. As a result, the temperature of the saturated refrigerant in the evaporator remains substantially constant.

Abstract: A heat exchanger includes fins arranged in parallel with each other with a predetermined spacing along the rotational axis direction of a blower. Heat exchanger tubes are inserted into the fins to form rows along a longitudinal direction of the fins connected to each other along the airflow direction, to form refrigerant channels. A branch portion is provided to connection portions of the heat exchanger tubes to increase or decrease the number of paths in the refrigerant channels. Refrigerant flows through each of the refrigerant channels passing through paths mutually different at least at one portion between the refrigerant inlet and the refrigerant outlets, flows along one direction from the windward-side row to the leeward-side row, or from the leeward-side row to the windward-side row in the airflow direction, in sequence between rows. One-path portion is provided in the most windward-side row heat exchanger tubes.

Abstract: A refrigerator icemaker assembly includes a bin having a bottom wall, as well as first and second pairs of opposing side walls. One of the first pair of opposing side walls includes an opening within which is movably mounted a coupler. The coupler is provided with a recessed portion having formed therein an aperture and a cog member. An auger is rotatably mounted in the bin and includes a first end portion that extends through the aperture of the coupler. A drive member extends into the coupler and drives the auger in a first direction to dispense ice cubes and in a second direction to dispense crushed ice. The driver engages with the cog member when being rotated in the first direction and directly engages the first end of the auger when being driven in the second direction.

Abstract: A multi-pass heat exchanger having a return manifold with a partition, a front wall, and a rear wall is provided. The partition separates the return manifold into a collection chamber and a distribution chamber. The front and rear walls define a fluid channel. The front wall has a plurality of perforations placing the fluid channel in separate fluid communication with the collection chamber and the distribution chamber.

Abstract: The subject invention pertains to a method and apparatus for cooling. In a specific embodiment, the subject invention relates to a lightweight, compact, reliable, and efficient cooling system. The subject system can provide heat stress relief to individuals operating under, for example, hazardous conditions, or in elevated temperatures, while wearing protective clothing. The subject invention also relates to a condenser for transferring heat from a refrigerant to an external fluid in thermal contact with the condenser. The subject condenser can have a heat transfer surface and can be designed for an external fluid, such as air, to flow across the heat transfer surface and allow the transfer of heat from heat transfer surface to the external fluid. In a specific embodiment, the flow of the external fluid is parallel to the heat transfer surface.

Abstract: A heat exchanger for an ice machine has the form of a cylinder. In some embodiments, the cylinder is made from an extrusion of a metal such as an aluminum alloy. The heat exchanger includes inner and outer cylindrical walls and one or more refrigeration passages positioned between the inner and outer walls. The inner and outer walls are separated from each other by connecting structures defining the refrigeration passages. The heat exchanger can be extruded as a rectangular panel and subsequently formed into a cylindrical form. Alternatively, the heat exchanger can be extruded as a cylinder, or as an arcuate cylindrical segment in which several of such segments are subsequently joined together (as by welding) into a cylinder. Ice machines that feature ice formation on both the inner and outer walls of the cylinder are also disclosed.

Abstract: An evaporator includes two header tanks and a plurality of heat exchange tubes disposed therebetween. The interior of a refrigerant inlet header section of the first header tank is divided into two spaces by a first flow diverging plate. The heat-exchange-tube-side space of the refrigerant inlet header section is divided into a plurality of sections by a first partition plate. Flow diverging openings are provided in portions of the first flow diverging plate facing the sections. The interiors of first and second intermediate header sections of the second header tank are each divided into sections, equal in number to those of the refrigerant inlet header section. The heat exchange tubes communicating with the sections of the refrigerant inlet header section communicate with the sections of the first intermediate header section, and the sections of the first intermediate header section communicate with the corresponding sections of the second intermediate header section.

Abstract: A refrigerant system incorporates a variable capacity expander. A bypass line selectively bypasses at least a portion of the refrigerant approaching the expander to the intermediate expansion point within the expander. In this manner, the refrigerant expansion process is controlled more efficiently than in the prior art.

Abstract: Desalination apparatus based on porous restraint panels fabricated from a number of different layers of metal, thermoplastic, or other substances are used as sophisticated heat exchangers to control the growth of gas hydrate. The gas hydrate is produced after infusion of liquid hydrate-forming material into water to be treated, which liquid hydrate-forming material can also be used to carry out all the refrigeration necessary to cool seawater to near the point of hydrate formation and to cool the porous restraint panels. Hydrate forms on and dissociates through the porous restraints. The composite restraint panels can also be used in gaseous atmospheres where, for instance, it is desired to remove dissolved water.

Abstract: A supercooling heat exchanger of an air conditioning apparatus is configured to exchange heat between a high-pressure refrigerant and a low-pressure refrigerant. The supercooling heat exchanger is divided into first and second heat exchangers. One of the first and second heat exchangers is disposed so that the high-pressure refrigerant and the low-pressure refrigerant flow countercurrent to each other. The other of the first and second heat exchangers is disposed so that the high-pressure refrigerant and the low-pressure refrigerant flow parallel to each other. Preferably, both heat exchangers have a high-pressure liquid refrigerant pipe that is wound around the external periphery of a low-pressure refrigerant suction pipe. The heat exchangers are thereby reduced in size.

Abstract: This invention relates to a method and an apparatus for a modulating air conditioning system having increased energy efficiency and greater turndown capabilities. A modulating air conditioning system includes modulating at least one of the following components: a compressor, a compressor driver, a condenser fan, an evaporator fan, an effective evaporator surface area, an effective condenser surface area and/or an expansion device.

Abstract: This invention relates to a method and an apparatus for a modulating air conditioning system having increased energy efficiency and greater turndown capabilities. A modulating air conditioning system includes modulating at least one of the following components: a compressor, a compressor driver, a condenser fan, an evaporator fan, an effective evaporator surface area, an effective condenser surface area and/or an expansion device.

Abstract: Provided is an air conditioner for a vehicle, including a blower unit that blows air, an air conditioning case including an evaporator and a heater core, which are sequentially disposed in an airflow path, and an air inlet path that allows air to flow to an evaporator from the blower unit, wherein the airflow path includes a first path that allows air entered from the air inlet path to flow to a lower part of the evaporator and second and third paths that allow the air to flow to the lower part of the evaporator after passing through both sides of the evaporator. The air conditioner increases an amount of airflow and reduces airflow resistance since airflow paths are formed on both sides of the evaporator in addition to a direction perpendicular to the separator. Consequently, the airflow entering a lower part of the evaporator can be uniformly distributed.

Abstract: Disclosed herein is a refrigerant distributing device for a multi-type air conditioner, which can discharge an evenly mixed refrigerant to a plurality of indoor units. The refrigerant distributing device comprises an inlet pipe to supply a refrigerant, a distributor, and a plurality of outlet pipes. The distributor comprises an inlet port connected with the inlet pipe, a mix zone having a predetermined space formed therein such that the refrigerant induced through the inlet port forms a vortex flow within the mix zone so as to be evenly mixed, and a plurality of outlet ports separably connected with the mix zone to discharge the refrigerant having passed through the mix zone to an outside. The plurality of outlet pipes selectively connects at least one outlet ports of the distributor and each outlet pipe, for adjusting the amount of refrigerant supplied to each outlet pipe based on the capacity of each indoor unit connected with each outlet pipe.

Abstract: A heat exchanger system is described and which includes a metal tubular heat exchanger; a fluid distributor conduit fabricated from a metal dissimilar to that of the heat exchanger, and wherein the fluid distributor conduit is connected in fluid flowing relation relative to the metal tubular heat exchanger; and a fluid distributor made of a metal that is similar to that of the fluid distributor conduit, and which is connected in fluid flowing relation relative to the fluid distributor.

Abstract: An evaporator (1) having: a plurality of vertical tubes (2) having a refrigerant path (7, 8) therein; an upper tank (10, 11) communicating upper ends of the refrigerant paths (7, 8) in the plural tubes (2); a lower tank (12, 13) communicating lower ends of the refrigerant paths (7, 8) in the plural tubes (2); and a resistance generators (21) provided in vicinity of inlets of the refrigerant paths (7, 8) and applying resistance to refrigerant flowing from the upper tank (10, 11) or the lower tank (12, 13) into the refrigerant paths (7, 8).

Abstract: In an evaporator unit for a refrigerant cycle device, an evaporator is connected to an ejector to evaporate refrigerant to be drawn into a refrigerant suction port of the ejector or the refrigerant flowing out of the outlet of the ejector. The evaporator includes a plurality of tubes in which the refrigerant flows, and a tank configured to distribute the refrigerant into the tubes or to collect the refrigerant from the tubes. The ejector is located in the tank, and the nozzle portion is brazed to the tank to be fixed into the tank. The tank may be a header tank directly connected to the tubes or may be a separate tank separated from the header tank.

Abstract: An evaporator unit includes a first heat exchanger configured to perform heat exchange between refrigerant flowing thereinto from a refrigerant inlet and air, a bypass passage through which the refrigerant flowing from the refrigerant inlet flows while bypassing the first heat exchanger, a second heat exchanger configured to perform heat exchange between air and mixed refrigerant in which the refrigerant after passing through the first heat exchanger and the refrigerant having passed through the bypass passage are mixed, and a flow amount adjustment portion configured to adjust a flow amount of the refrigerant flowing through the first heat exchanger and a flow amount of the refrigerant flowing through the bypass passage. Accordingly, the first heat exchanger and the second heat exchanger can be configured to have respectively portions in which a dryness of the refrigerant is in a range between 0.6 and 0.9.