Abstract: Disclosed is an evaporator, comprising: a heating tube left as an empty space between first and second case sheets, which form an evaporator case, so as not to be overlapped with a cooling tube, and forming a heating passage in which a working liquid for defrosting flows; and a heater attached to the outer surface, which corresponds to the heating tube, of the evaporator case so as to heat the working liquid inside the heating tube. The heating tube can have a structure which an inlet and an outlet are respectively formed at both sides of a heater attachment part in the longitudinal direction and both end portions of a passage part are respectively connected to the inlet and the outlet, or can have a structure in which an opening is formed at one side of the heater attachment part, the working liquid heated by the heater is discharged through the opening, and the cooled working liquid is returned.

Abstract: An evaporator comprises: an evaporator case having first and second case sheets coupled to each other and bent such that both sides of the evaporator case are open, thereby forming a box shape, a food storing space being formed inside the evaporator case; a cooling tube provided as an empty space between the first and second case sheets, thereby forming a cooling channel through which a refrigerant flows; and a heating tube formed as an empty space between the first and second case sheets so as not to overlap with the cooling tube, thereby forming a heating channel for defrosting, wherein the cooling tube and the heating tube are shaped to protrude to the outside of the evaporator case, and the evaporator case has an inner surface formed to be flat.

Abstract: The present disclosure relates to an evaporator, including an evaporator case formed in a box shape with both sides open in a manner of bending two case sheets coupled to each other, a cooling tube left as an empty space between the two case sheets to form a cooling passage for a flow of refrigerant, a heating tube left as an empty space between the two case sheets in a non-overlapping manner with the cooling tube, and a heating wire heater inserted into the heating tube to surround the evaporator case, and generating heat, in response to power supplied, such that heat for defrosting is transferred to the evaporator case.

Abstract: A cylindrical hole is formed between peripheral belt portions of two container constituent plates of a thermal storage material container of an evaporator with a cool storage function. A cylindrical portion of a thermal storage material charging member having a thermal storage material charging passage is disposed in the cylindrical hole and brazed to the two container constituent plates. That portion of the thermal storage material charging member which protrudes from the cylindrical hole includes a crushed portion and a cylindrical uncrushed portion. The crushed portion seals the thermal storage material passage. The cylindrical portion of the thermal storage material charging member is smaller in outside diameter than the uncrushed portion, and the cylindrical portion and the uncrushed portion have the same inside diameter. The cylindrical portion has an inward protrusion protruding into a thermal storage material containing space, and the inward protrusion has a radially expanding engagement portion.

Abstract: An air-conditioning unit including an air circuit with an air inlet, a main fan and an air outlet designed to be connected to a chamber, preferably via one or more flexible ducts, and a refrigerant circuit including a heat exchanger/evaporator positioned in the air circuit to cool the air by evaporating the refrigerant, a compressor and a condenser for condensing the refrigerant before it is returned to the heat exchanger/evaporator. The heat exchanger/evaporator includes several parallel circuits each having at least one regulator valve. The air circuit also includes a temperature probe downstream of the heat exchanger/evaporator and connected to a controller which controls the regulator valves to regulate the flow of refrigerant, and a pressure probe at the air outlet and connected to a regulator for regulating the speed and/or the power of the main fan so as not to exceed a maximum raised pressure at air outlet.

Abstract: An evaporator includes: a porous medium that has a plurality of tubular projections; a vapor chamber and a liquid chamber that are separated by the porous medium, the liquid chamber also serving as a liquid reservoir; a case that has a first portion that is connected with a vapor line, a second portion that is connected with a liquid line at one side, and a plurality of protrusions that are provided on the first portion; and a high thermal conductivity member that is provided inside the liquid chamber, the high thermal conductivity member extending from the one side that is connected with the liquid line to an opposite side located opposite to the one side, the high thermal conductivity member having a higher thermal conductivity than the second portion.

Abstract: An appliance includes a cabinet; a first compartment; and a second compartment. The first compartment and the second compartment are separated by a horizontal mullion. The cabinet also typically includes a coolant system that has: a single compressor for regulating a temperature of the first compartment and a temperature of the second compartment operably connected to at least one evaporator; a shared coolant fluid connection system; and a coolant fluid spaced within the shared coolant fluid connection system used to regulate both the temperature of the first compartment and the second compartment. The compressor can provide the shared coolant at at least two different pressures to at least one evaporator using the shared coolant fluid connection circuit. The ratio of the substantially steady state heat gain for the first compartment to the substantially steady state total heat gain for the overall cabinet is about 0.65:1 or greater.

Abstract: A heat exchanger includes a heat exchanging section for performing heat exchange between a refrigerant and a cooling medium and a passage section. The passage section includes a first passage and a second passage for supplying the refrigerant to the heat exchanging section and a supply passage for supplying the refrigerant to the first passage and the second passage. The first passage and the second passage define a first opening portion and a second opening portion opening at an end of the supply passage. A minimum distance between an opening edge of the first opening portion and an inner surface of the supply passage is equal to a minimum distance between an opening edge of the second opening portion and the inner surface of the supply passage.

Abstract: Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and multi-slab heat exchangers are provided that include fluid connections for transmitting fluid between groups of tubes. The fluid connections may include generally tubular members fluidly connected to manifold sections. The fluid connections also may include partitioned manifolds containing tubes of different heights. Multichannel tubes are also provided that include a bent section configured to locate a flow path near a leading edge of a tube within one section and near a trailing edge of the tube within another section.

Abstract: An appliance includes a cabinet; a first compartment; and a second compartment. The first compartment and the second compartment are separated by a horizontal mullion. The cabinet also typically includes a coolant system that has: a single compressor for regulating a temperature of the first compartment and a temperature of the second compartment operably connected to at least one evaporator; a shared coolant fluid connection system; and a coolant fluid spaced within the shared coolant fluid connection system used to regulate both the temperature of the first compartment and the second compartment. The compressor can provide the shared coolant at at least two different pressures to at least one evaporator using the shared coolant fluid connection circuit. The ratio of the substantially steady state heat gain for the first compartment to the substantially steady state total heat gain for the overall cabinet is about 0.65:1 or greater.

Abstract: An appliance includes a cabinet; a first compartment; and a second compartment. The first compartment and the second compartment are separated by a vertical mullion. The cabinet also typically includes a coolant system that has: a single compressor for regulating a temperature of the first compartment and a temperature of the second compartment operably connected to at least one evaporator; a shared coolant fluid connection system; and a coolant fluid spaced within the shared coolant fluid connection system used to regulate both the temperature of the first compartment and the second compartment. The compressor can provide the shared coolant at at least two different pressures to at least one evaporator using the shared coolant fluid connection circuit. The ratio of the substantially steady state heat gain for the first compartment to the substantially steady state total heat gain for the overall cabinet is about 0.65:1 or greater.

Abstract: An evaporator includes two heat exchangers including an entry-side heat exchanger and an exit-side heat exchanger which are arranged opposite each other. The entry-side heat exchanger has a first path, a second path, and a third path, and the exit-side heat exchanger has a fourth path, a fifth path, and a sixth path. The sectional area of heat exchange passages of the first path in which refrigerant from an entry firstly flows downward is set smaller than the sectional area of heat exchange passages of the fifth path in which the refrigerant lastly flows downward. The sectional area of heat exchange passages of the sixth path in which the refrigerant to an exit lastly flows upward is set smaller than the sectional area of heat exchange passages of the second path in which the refrigerant firstly flows upward.

Abstract: Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and heat exchangers are provided which include manifold configurations designed to promote mixing of vapor phase and liquid phase refrigerant. The manifolds contain flow mixers such as a helical tape, sectioned volumes, and partitions containing apertures. The flow mixers direct the flow of refrigerant within the manifold to promote a more homogenous distribution of fluid within the multichannel tubes.

Abstract: Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and multi-slab heat exchangers are provided that include fluid connections for transmitting fluid between groups of tubes. The fluid connections may include generally tubular members fluidly connected to manifold sections. The fluid connections also may include partitioned manifolds containing tubes of different heights. Multichannel tubes are also provided that include a bent section configured to locate a flow path near a leading edge of a tube within one section and near a trailing edge of the tube within another section.

Abstract: An evaporator with a cool storage function includes flat refrigerant flow tubes and flat cool storage material containers each brazed to one side surface of the corresponding refrigerant flow tube. A plurality of sets each composed of refrigerant flow tubes and a cool storage material container are disposed such that they are spaced from one another. A fin is disposed in an air-passing clearance between adjacent sets, and is joined to the corresponding refrigerant flow tubes and the corresponding cool storage material container. Front portions of the cool storage material containers and the fins project frontward from the refrigerant flow tubes, and an internal-volume-increasing portion, whose container height is greater than that of the container body portion, is provided at the frontward projecting portion of each cool storage material container. Fins are brazed to opposite side surfaces of the internal-volume-increasing portion of each cool storage material container.

Abstract: A phase-separated evaporator includes a boiler plate and a phase separation chamber that includes a housing, connected to the boiler plate, having a gas port and a liquid port; and a phase partitioner connected to interiors of the housing, dividing the phase-separated evaporator into a vapor directing compartment and a condensate directing compartment. The phase partitioner includes a partition panel and multiple feeding injectors extending from the partition panel, with the injector tips disposed immediately above the boiler plate. The returning condensate from a condenser enters from the liquid port into the condensate directing compartment and feeds onto the boiler plate through the feeding injectors; while the vapor generated in the vapor directing compartment exits from the gas port, without encountering the condensate.

Abstract: Each heat exchange tube of an evaporator is composed of two press-worked rectangular metal plates joined together in a stacked condition. The metal plates of the heat exchange tube are swelled outward whereby at least one refrigerant flow space extending in the vertical direction and having opened upper and lower ends is provided in the heat exchange tube. Insertion portions to be inserted into header sections of header tanks of the evaporator via tube insertion holes are provided on upper and lower end portions of each heat exchange tube at positions corresponding to the refrigerant flow space. A concave portion is formed in each of the insertion portions, excluding opposite ends thereof with respect to the front-rear direction, of the upper and lower end portions of each heat exchange tube, the concave portion being concaved inward with respect to a longitudinal direction of the heat exchange tube.

Abstract: A heat exchanger includes a heat exchanging section for performing heat exchange between a refrigerant and a cooling medium and a passage section. The passage section includes a first passage and a second passage for supplying the refrigerant to the heat exchanging section and a supply passage for supplying the refrigerant to the first passage and the second passage. The first passage and the second passage define a first opening portion and a second opening portion opening at an end of the supply passage. A minimum distance between an opening edge of the first opening portion and an inner surface of the supply passage is equal to a minimum distance between an opening edge of the second opening portion and the inner surface of the supply passage.

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: A regenerator matrix 215 disposed in a fluid conduit 152 for exchanging thermal energy with a fluid passing through the fluid conduit. The regenerator matrix 215 has a variable fluid flow resistance and a variable capacity for convective heat transfer with the fluid along it longitudinal length. Preferably, the flow resistance and the capacity for convective heat transfer between the fluid and the regenerator matrix each increase as the fluid flows from a hot end to a cold end of the fluid conduit 152. The regenerator matrix 215 is formed from individual screen elements 50 or from stacks of screen elements sintered together as composite regenerator elements 110. A first portion 235 of the regenerator matrix made from first individual screen elements is disposed at the hot end of the regulator matrix 215. A second portion 210 of the regenerator matrix made from second individual screen elements is disposed at the cold end of the regulator matrix.

Abstract: A cooling system for cooling a plurality of heat producing systems includes a heat exchanger having a plurality of cooling zones, each of which has a respective inlet and outlet for facilitating flow of a respective temperature control fluid therethrough. Each of the respective temperature control fluids facilitates temperature control of a respective heat producing system. A plurality of fans cool the temperature control fluids flowing through the heat exchanger, and a fan or fans are disposed proximate each zone of the heat exchanger to provide air flow substantially independently from the air flow over the other cooling zones.

Abstract: Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems, heat exchangers, and multichannel tubes are provided which include internal configurations designed to promote mixing. The multichannel tubes include interior walls which form flow channels. The interior walls are interrupted at locations along the multichannel tube in order to provide open spaces between the flow channels where mixing may occur. The mixing that occurs promotes a more homogenous distribution of refrigerant within the multichannel tubes.

Abstract: An evaporator includes a downwind-side heat exchanging part and an upwind-side heat exchanging part. In the heat exchanging part, paths are formed by partitions. In the evaporator, the flowing direction of coolant flowing in the upwind-side path is opposite to the flowing direction of the coolant flowing in the downwind-side path opposing to the upwind-side path. The number of heat exchanging passages in the path where the coolant rises is smaller than the number of heat exchanging passages in the paths where the coolant downs. As a result, the evaporator enables an increasing of the quantity of coolant flowing in the paths. Thus, if superimposing the upwind-side heat exchanging part on the downwind-side heat exchanging part, then it is possible to reduce an area causing a rise in blowout temperature of the coolant due to its short supply.

Abstract: A cooling appliance is provided with a refrigeration compartment, a cold storage compartment and a freezer compartment, which are separated from one another by partition walls and by at least one door or flap. A cooling air passage is associated with the refrigeration compartment and in its run-in region a cooling fan is arranged which sucks cooling air from the refrigeration compartment and its run-out opens into the cold storage compartment. Sections of a single evaporate are associated with the freezer compartment and the cooling air passage. Openings and/or gaps are provided in and/or between the partition wall and/or door which separate the refrigeration compartment from the cold storage compartment. A control or regulating device controls the running time and/or the speed of the compressor and/or the switched-on time and/or the speed of the cooling fan.

Abstract: An evaporator of an air conditioner has front and rear sections, and heat-exchanging pipes comprised of first, second, and third independent refrigerant passages. In the first passage, refrigerant enters a first row of a front line of the rear section, circulates completely through the rear section, and then exits from a second row of the front line of the rear section. In the second passage, refrigerant enters a first row of the front line of the front section, circulates through an upper portion of the front section, and then exits from a first row of the rear line of the front section. In the third passage refrigerant enters a fifth row of the front line of the front section, circulates through a lower portion of the front section, and then exits from a seventh row of the rear line of the front section.

Abstract: A refrigeration system (12) is comprised of three expansion units (19A, 19B, 19C), with each having an expansion chamber (22) and three secondary chambers (24, 26 and 28), connected to a supply (16) of compressed refrigerant. The expansion chamber and secondary chambers are formed with progressively reducing volumetric capacity. The end of each of the the secondary chambers, is connected to a common bleed tube (29) having a bleed hole (34) for venting the refrigerant. The bleed hole opens to the outside of a housing (15) which houses the expansion units. The interior of the housing (15) is filled with a gel which changes state from a liquid to a solid at a predetemmined temperature. A valving arrangement (32) connects the expansion units to a supply of compressed refrigerant. The housing (15) together with a supply (16) refrigerant can be installed into a cooling box for cooling the space within the cooling box.

Abstract: An evaporator having a tortuous refrigerant flow path for use in an ice making machine. The evaporator includes a first tubular member having a closed bottom end and a closed top end with a first aperture. A second tubular member is concentrically positioned within the first tubular member. The second tubular member has a closed bottom end with a second aperture spaced from the closed bottom end of the first tubular member and an open top end spaced from the closed top end of the first tubular member. A helical baffle plate is coiled around second tubular member. A third tubular member is concentrically positioned within the second tubular member. The third tubular member has an open bottom end spaced from the closed bottom end of the second tubular member and a top end extending through the first aperture in the first tubular member. A fourth tubular member is concentrically positioned within the third tubular member and extends through the second aperture in the second tubular member.

Abstract: A refrigeration device for refrigerating containers for industrial use, and process for the same, includes an upper collector for feeding a refrigerant liquid into an interior of the covers around the container so that the liquid falls only by the force of gravity, and a distribution system.

Abstract: A condenser (28) is connected at the top (31) to a riser (22) and at the bottom (32) to a downpipe (23). Below the condenser (28), a vertically disposed, plate-shaped element (13) is arranged, there being formed along the two vertical edges of this element the conduits (22, 23) and, between these, several evaporators (15), separated from one another by perforations (17), for transferring the heat loss of the electrical elements to a liquid. Each of the evaporators (15) is connected at one end at the top (18) with the riser (22) and at the opposite end (19) at the bottom with the downpipe (23). The condenser (28), the conduits (22, 23), and the evaporators (15) constitute a unit sealed in a pressure-proof fashion which is filled with the liquid, that can be evaporated in the evaporators (15) by the heat loss and can be condensed in the condenser (28), to such an extent that the liquid volume lies above the uppermost evaporator (15) and below the condenser (28) or in the lower portion of the latter.

Abstract: An air conditioning system is disclosed in which the air conditioning capacity is stepped to a lower level upon reduced sensible air conditioning demand. The stepped reduction involves both a stepped reduction of blower capacity and a stepped change of the heat exchange fluid flow at the heat exchanger modifying the temperature of the air. Several embodiments are disclosed.

Abstract: An evaporator for refrigerators and the like, comprising a sheet and at least one refrigerant flow passage assembly which includes a multi-passage unit having a plurality of parallel flow passages, an inlet header pipe connected to the inlet openings of the flow passages and an outlet header pipe connected to the outlet openings of the flow passages. The sheet which carries on one surface thereof the passage assembly or assemblies is bent to form a rectangular box-like structure of a cooler for a freezing chamber formed in the refrigerators.

Abstract: In this vacuum apparatus with a vacuum chamber and a vapor condenser installed therein, a refrigerant and a brine are supplied into said vapor condenser to thereby effect heat exchanges between both mediums and between both or either one of said mediums and a vapor to be generated.

Abstract: In this vacuum apparatus with a vacuum chamber and a vapor condenser installed therein, a refrigerant and a brine are supplied into said vapor condenser to thereby effect heat exchanges between both mediums and between both or either one of said mediums and a vapor to be generated.

Abstract: A fin and refrigerant tube assembly is mounted in a housing. The fins are arranged parallel to each other and the tube is doubled back on itself a number of times to perpendicularly extend through and be connected to the fins at a plurality of locations. The doubled over U-shaped ends of the tube extend external of the ends of the fin assembly. Air is forced from a main inlet through the fins parallel thereto to an outlet. The housing in conjunction with one end of the fin assembly defines a precooling chamber having a secondary air inlet and an outlet leading to the main inlet. Air passing through the precooling chamber is cooled by the doubled over ends of the tube and moisture condenses on the doubled over ends of the tube. Dust particles entrained in the air accumulate with the moisture on the doubled over ends of the tube rather than on fins whereby the spaces between the fins do not become clogged with dust.