|| List of recent Refrigerant-related patents
A sealed compressor of the present invention comprises an electric component (110); a compression component (112); a sealed container (102) which accommodates the electric component (110) and the compression component (112) and stores lubricating oil (104) therein; and a suction pipe (170) which is provided to penetrate a wall portion of the sealed container (102), and through which a refrigerant gas suctioned into the sealed container (102) flows; wherein the compression component (112) includes a compression chamber (142) formed within a cylinder (134) and a suction muffler (146) through which the refrigerant gas flows; wherein the suction muffler (146) includes a muffling space (150), an exit pipe (154), an inlet pipe (152), whose suction port (151) opens in a substantially horizontal direction in the interior of the sealed container (102), a funnel-shaped refrigerant receiver section (160) provided to surround the suction port (151); and wherein the suction port (151) is placed such that its center (151a) is located above than a center (160a) of the refrigerant receiver section (160).. .
|Magnetic resonance imaging apparatus and operating method|
In order to extend the lifetime of a cooler and reduce down periods of an mri apparatus due to the maintenance, a cooling capacity of the cooler 107 of the superconducting magnet is controlled so that cooling heat absorption almost equivalent to an amount of heat penetrating into the refrigerant vessel 202 of the superconducting magnet is exerted, and pressure in the refrigerant vessel 202 is maintained within an acceptable pressure range. In addition to this, at least either change amount of magnetic field strength or magnetic field homogeneity in an imaging space due to a pressure change in the refrigerant vessel 202 is compensated by the magnetic field adjustment unit..
|Vapor compression refrigeration system|
A vapor compression refrigeration system includes a subcooler provided between a condenser and an evaporator, which is formed by a heat exchanger integrally having a primary side and a secondary side into which a refrigerant which has passed through the primary side flows and in which the primary side and the secondary side have the same heat transfer area and capacity. An expansion valve is provided at a refrigerant entrance on the secondary side of the subcooler, and a primary expansion valve is provided at a refrigerant entrance on the primary side of the subcooler to which the refrigerant is introduced in a vapor compression refrigeration cycle having stages of compression, condensation, expansion and evaporation of the refrigerant.
|Method and apparatus for use of electronic pressure gauge in extreme high temperature environment|
Methods and apparatus for use of an electronic pressure gauge at high temperatures is presented. An electronic pressure sensor is exposed to wellbore pressure at a location having high-temperatures.
The invention relates to a refrigeration device (1) comprising: an inner container (2) with a coolable interior space (3, 4); a refrigerant circuit (21) provided for cooling the interior space (3, 4); a door panel (5, 6) provided for opening and dosing (lie interior space (3, 4); and a control device (22) designed to control at least one component (23, 24) of the refrigeration device (1) on the basis of the opening state of the door panel (5, 6). The refrigeration device (1) further comprises an electrical door opening assistance mechanism (25), which operates independently of the control device (22), is designed to at least support an opening of the door panel (5, 6), and therefore comprises information on the current opening state of the door panel (5, 6), and which is connected to the control device (22) and is designed to transmit information on the opening state of the door panel (5, 6) to the control device (22)..
|Auxiliary hvac system for a vehicle|
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.
|Humidity control apparatus|
A humidity control apparatus performs a humidification operation in which outdoor air is supplied to the inside of a room through a moisture-desorption adsorption heat exchanger serving as a condenser and room air is discharged to the outside through a moisture-absorption adsorption heat exchanger serving as an evaporator. The humidity control apparatus includes a preheat heat exchanger which, in the humidification operation, is positioned upstream of the moisture-desorption adsorption heat exchanger in the flow of outdoor air in an air passage and serves as a condenser to heat outdoor air in a refrigerant circuit, and a heat-recovery heat exchanger which, in the humidification operation, is positioned downstream of the moisture-absorption adsorption heat exchanger in the flow of room air in the air passage and serves as an evaporator to recover heat from room air in the refrigerant circuit..
|Refrigeration and air-conditioning apparatus and humidity control device|
An air-conditioning system includes a pump that sends, to an evaporator, a cooling fluid that exchanges heat with a refrigerant at the evaporator, and a first heat exchanger that exchanges heat between ambient air and the cooling fluid that has undergone the heat exchange at the evaporator. A sensible heat exchange cycle is formed by annularly connecting the evaporator, the heat exchanger, and the pump by using a pipe.
A refrigeration device includes a radiator, an evaporator, a compressor, a heater and a control device. The radiator causes a refrigerant to radiate heat.
|Humidity control apparatus|
A refrigerant circuit of a humidity control apparatus is provided with two adsorption heat exchangers. In the refrigerant circuit, refrigerant can circulate in reverse directions.
In an air-conditioning apparatus, a heat source side heat exchanger, intermediate heat exchangers, and use side heat exchangers are separately formed and adapted to be disposed at separate locations, respectively. There is provided a defrosting operation function to melt frost attached around the heat source side heat exchanger, and a heating function during defrosting operation that drives a pump to circulate a heat medium and supply heating energy to the use side heat exchangers in need of heating to perform heating operation.
|Compact cooling system and method for accurate temperature control|
In an integrated two-phase accumulator controlled loop cooling system, the pumped refrigerant is employed to cool the supply of refrigerant in the accumulator vessel. No external cooling of the accumulator vessel is required, and a standard heater in the accumulator is sufficient to regulate the boiling pressure.
|Vehicle idle time reduction system and method|
A system for reducing idle time in service vehicles such as police patrol cars. A bank of auxiliary batteries is provided.
|Method for selecting lubricants for heat pumps|
Provided is a method for selecting a lubricant and a refrigerant for use in a vapor-compression refrigeration device such that the combination of the lubricant and refrigerant produces a fluid system having a lubricant-rich phase and a refrigerant-rich phase, yet exhibits miscible-type properties.. .
|Semiconductor device and method for manufacturing semiconductor device|
A semiconductor device according to the present invention has a semiconductor module 2; a cooling unit 3, the semiconductor module 2 being joined to an upper surface of the cooling unit 3, and a pipe 14, 15 for circulating a refrigerant being fixed to a side surface 20, 22 of the cooling unit 3; and a resin mold layer 4 that covers outer peripheries of the semiconductor module 2 and the cooling unit 3 . Further, a protruding portion 25, 26 that protrudes from the side surface 20, 22 of the cooling unit 3 and surrounds the pipe 14, 15 is provided on the side surface 20, 22 of the cooling unit 3..
|System and method for temporarily sealing a bore hole|
A production zone isolation system includes a sealing mechanism is positioned adjacent to or within the production zone of a well bore such that the expanders are positioned parallel to areas aft and fore of the area which is to be isolated. A refrigerant or cooling agent is pumped into a first inner tubular and exits out of the expanders and into regions of second outer tubular.
|Heat exchanger, housing, and air-conditioning circuit including such an exchanger|
A heat exchanger (1) for a motor vehicle includes a plurality of tubes (2) arranged in a first and a second row (3a, 3b); a first and a second header tank (4, 5) inside which tanks (4, 5) the tubes (2) of each of the rows (3a, 3b) emerge; and a longitudinal dividing partition (16) arranged in the first header tank (4) to divide the first header tank (4) longitudinally into refrigerant inlet and outlet compartments (17, 18) into which the tubes (2) of the first row (3a) and of the second row (3b) emerge. The longitudinal dividing partition (16) includes a plurality of transverse dividing partitions (27) arranged in the second header tank (5) to divide the second header tank (5) transversely into a plurality of return compartments (28) into which at least one tube (2) of each of the rows (3a, 3b) emerges..
|Condenser with a stack of heat exchanger plates|
A condenser has a stack of heat exchanger plates that includes at least a first section for condensation of a refrigerant and a second section for supercooling the refrigerant. A refrigerant flow channel and another flow channel for a liquid coolant stream are formed in each of the first and second sections between the heat exchanger plates that are in heat-exchanging relation.
|Cryogenic refrigerator system and oil separator|
Provided is an oil separator in which a filter member is arranged between inner and outer punching plates and that includes a filter element configured so that a refrigerant gas that has flowed in from an inlet pipe flows into the filter member through inner through-holes provided in the inner punching plate, and flows outside through outer through-holes provided in the outer punching plate, and a shell that houses the filter element therein and has a bottom portion that collects leak oil that has flowed out of the outer through-holes. An auxiliary flow channel plate for the leak oil is provided in the surface of the outer punching plate, and is configured so that the leak oil is discharged to the bottom portion of the shell through the auxiliary flow channel plate..
|Solar thermal air conditioning unit|
A solar thermal air conditioning unit is provided. The solar thermal air condition unit includes a pressurized water tank with a water entrance port for receiving water.
|Air conditioner for vehicle|
An air conditioner for a vehicle, including: a discharge capability control section that controls refrigerant discharge capability of a compressor; an upper limit value determination section that determines an upper limit value of the refrigerant discharge capability; and a gear shift position detection section that determines a gear shift position of a gear shift device of a vehicle, wherein the gear shift device having a forward range for moving the vehicle forward and a range other than the forward range as the gear shift position; when the gear shift position determined by the gear shift position detection section is in a range other than the forward range, the upper limit value determination section decreases the upper limit value compared to when the gear shift position determined by the gear shift position detection section is in the forward range.. .
A refrigeration system includes a heat source unit, a plurality of utilization units, a height-associated value detection unit and a pressure control unit. The heat source unit has a compressor and a heat source-side heat exchanger that functions as a radiator.
An air-conditioning apparatus includes a refrigeration cycle that includes an intermediate heat exchanger configured to exchange heat between a heat source side refrigerant and a heat medium different from the heat source side refrigerant, a heat medium circuit that includes at least one pump configured to circulate the heat medium related to heat exchange in the intermediate heat exchanger, a use side heat exchanger configured to exchange heat between the heat medium and air related to an air-conditioned space, and flow switching valves. A controller is configured to perform control to activate the pump to circulate the heat medium through the heat medium circuit when, during suspension of an air conditioning operation, the detected temperature of outdoor air is at or below a first predetermined temperature and a first predetermined period of time has elapsed since the pump was stopped..
|Centralized multi-function heat exchange system|
A centralized heat exchange system for controlling a plurality of heat exchangers in heat pump cycle includes a plurality of heat exchanging units; a compressor; a network of refrigerant piping connected to each of the plurality of heat exchanging units and the compressor; and a controller configured to receive signals from sensors to monitor temperature or the like of spaces/compartments to be controlled. The controller controls the compressor and a reversing valve and expansion valves installed in the network of refrigerant piping to establish, in the network of refrigerant piping, one or more of a heat-pump loop that constitutes a vapor-compression cycle through an arrangement of a compressor, a condenser, an expansion valve, and an evaporator in accordance with a preset or user settable priority scheme that assigns at least one of the controlled spaces/compartments higher priority in control than the others..
|Refrigeration system and refrigeration method providing heat recovery|
A refrigeration circuit (1) is circulating a refrigerant and comprises in the direction of flow of the refrigerant at least one compressor (4a, 4b, 4c); at least one heat rejecting heat exchanger (6); at least one expansion device (8); and at least one evaporator (10). The refrigeration circuit (1) further comprises at least one heat recovery heat exchanger (12) having a refrigeration circuit side (12a) and heat recovery system side (12b) and being configured for transferring heat between the refrigeration circuit side (12a) and the heat recovery system side (12b), wherein the refrigeration circuit side (12a) is fluidly connected in parallel to the at least one heat rejecting heat exchanger (6) for flowing circulating refrigerant through the refrigeration circuit side (12a); and at least one regulation valve (16), which is configured for regulating the flow of refrigerant flowing through the refrigeration circuit side (12a) of the at least one heat recovery heat exchanger (12).
|Refrigerant management in hvac systems|
Generally, management of refrigerant in an evaporator of an hvac chiller is described. Methods, systems, and apparatuses to manage refrigerant in an evaporator can include one or combination of the following approaches: (1) by use of a refrigerant displacement array to physically prevent refrigerant from residing where the array is positioned; (2) by control of the interstitial velocity of refrigerant flow within the volume of the shell of an evaporator; (3) by a phase biased distribution of the refrigerant mixture, so that a gaseous portion is uniformly distributed into the evaporator shell, while liquid refrigerant and oil is distributed into the evaporator shell at a designated area; and (4) by preventing or reducing the occurrence of foaming inside the evaporator through anti-foaming surfaces, such as by the use of refrigerant phobic and lubricant phobic material(s).
A condenser unit including a compressor for compressing a refrigerant vapor to provide a superheated refrigerant vapor exerting a head pressure, and a condenser for receiving the superheated refrigerant vapor and condensing the superheated refrigerant vapor therein, the condenser being located in an uncontrolled space with air therein at an ambient temperature. The condenser unit also includes a flow control means for controlling flow of the superheated refrigerant vapor from the compressor into the condenser, a rotatable condenser fan for moving air past the condenser to dissipate heat from the condenser, and a controller for controlling the flow control means and the speed of rotation of the condenser fan based on at least one preselected parameter, to maintain the head pressure within a predetermined range thereof..
|Transport refrigeration system utilizing engine waste heat|
A transport refrigeration system includes a transport refrigeration unit having a refrigerant circuit through which a refrigerant is circulated in heat exchange relationship with air drawn from a cargo box, a fuel-fired engine for powering the refrigeration unit and having an exhaust system through which exhaust gases generated by the engine are discharged and an engine coolant circuit, an engine exhaust gases to engine coolant heat exchanger, and an engine coolant circuit to refrigeration unit heat exchanger.. .
|Control system for a refrigerated merchandiser|
A method of controlling a refrigerated merchandiser. The method includes refrigerating a product display area of the merchandiser using a refrigerant, detecting a presence of an air-refrigerant mixture in the refrigerated merchandiser, activating a fan in response to detecting the presence of an air-refrigerant mixture, and at least partially evacuating an interior of the merchandiser in response to fan activation..
|Heat exchange apparatus and method for controlling heat exchange apparatus|
A heat exchange apparatus that exchanges heat between a refrigerant and a temperature-regulated section has: a compressor; a first heat exchanger that exchanges heat between the refrigerant and outside air; a second heat exchanger that exchanges heat between the refrigerant and air for air conditioning; an opening-adjusting valve that adjusts a degree of opening of a path of the refrigerant between the first heat exchanger and the temperature-regulated section; an expansion valve that is disposed in a path of the refrigerant between the temperature-regulated section and the second heat exchanger, and that reduces a pressure of the refrigerant; and an ecu that controls a degree of opening of the opening-adjusting valve. The ecu increases the degree of opening of the opening-adjusting valve to thereby heat the temperature-regulated section, and reduces the degree of opening of the opening-adjusting valve to thereby cool the temperature-regulated section..
|Laundry treatment apparatus with heat pump|
The invention relates to a laundry treatment apparatus, in particular dryer (2a) or washing machine having drying function, comprising: a cabinet having a front wall, a rear wall, side walls and a base section, wherein the base section comprises an internal side facing the interior of the cabinet and an external side exposed to the outside of the cabinet, a laundry storing chamber for treating laundry using process air (a), a process air loop for circulating the process air through the laundry storing chamber, and a heat pump system for dehumidifying and heating the process air, the heat pump system having a refrigerant loop comprising: a first heat exchanger (10) for heating a refrigerant and cooling the process air (a), a second heat exchanger (12) for cooling the refrigerant and heating the process air, a refrigerant expansion device, a compressor, and an auxiliary heat exchanger (13). According to the invention the auxiliary heat exchanger (13) is arranged at the external side of the base section..
|Floor pan for connecting a roof-mounted cooling device to the roof of a switchgear cabinet|
A floor pan for connecting a roof-mounted cooling device to the roof of a switchgear cabinet for coupling an interior of the switchgear cabinet to the inner circuit of the refrigerant circulation of the roof-mounted cooling device, having at least one air inlet opening aligned with the hot air outlet of the inner chamber of the switchgear cabinet and at least one air outlet opening communicating with the cold air inlet(s) of the inner chamber of the switchgear cabinet. A plurality of air outlet openings are arranged surrounding at least one air inlet opening, and at least some air outlet openings are covered by ventilation louvres that are pivotable about an axis running in the plane of the floor and are rotatable about an axis running perpendicular to the plane of the floor..
|Air conditioner and heat exchanger therefor|
An air conditioner and a heat exchanger therefor are provided. The heat exchanger may include a shell; an injection pipe to guide a heat source fluid to an inside of the shell; a first refrigerant tube formed with a first spiral tube; a second refrigerant tube formed with a second spiral tube having a radius larger than a radius of the first spiral tube; and a discharge pipe to which the heat source fluid heat-exchanged with a refrigerant is discharged.
|Hvac system with selective flowpath|
A heating, ventilation, and/or air conditioning (hvac) system has a furnace comprising a furnace heat exchanger and an indoor hvac unit comprising a refrigerant heat exchanger and at least one of a component of the furnace and a component of the indoor hvac unit are selectively removable from an airflow path of the hvac system.. .
|Method for cooling metal parts having undergone a nitriding/nitrocarburising treatment in a molten salt bath, unit for implementing said method and the treated metal parts|
Before the end of the treatment of metal parts in a molten salt bath nitriding/nitrocarburizing station, a chamber, arranged so that the oxygen contained in the chamber can be discharged in order to create an inert atmosphere, is filled with a refrigerant in liquid form and with a strong capacity for volume expansion as it evaporates. All the parts treated are transferred into the chamber.
|Air conditioned and ambient fresh air supply system for respirator users|
A portable air conditioning and ambient fresh air supply system that provides ambient fresh or conditioned air to a user wearing a respirator. The apparatus comprises a cabinet having an upper chamber and a lower chamber.
|Refrigeration cycle apparatus|
A refrigeration cycle apparatus includes a compressor, a condenser such as an indoor heat exchanger, first expansion means, and an evaporator such as an outdoor heat exchanger that are connected by refrigerant pipes to form a refrigeration cycle. The evaporator is a heat exchanger including a plurality of plate-like heat transfer fins arranged in parallel and subjected to water slip or water repellent treatment, and a heat transfer tube provided in contact with the plurality of heat transfer fins such that refrigerant flows therein.
|Cooling system and vehicle|
A cooling system includes a compressor, a first heat exchanger, an expansion valve, a second heat exchanger, piping that connects these components and circulates a refrigerant through these components, a cooling unit that is provided in the piping between the first heat exchanger and the expansion valve and that cools a heat-generating source with the refrigerant; and a connection passage communicating a first passage with a second passage, the first passage being the piping between the compressor and the first heat exchanger, the second passage being the piping between the cooling unit and the expansion valve. The first heat exchanger is positioned higher than the cooling unit, and the piping is arranged so that the refrigerant that is condensed by the first heat exchanger is caused to flow into the cooling unit by gravitational force..
A cooling system (1) that cools an hv apparatus (31) includes a compressor (12) that circulates a refrigerant, a heat exchanger (14) that carries out heat exchange between the refrigerant and outside air, an expansion valve (16) that reduces the pressure of the refrigerant, a heat exchanger (18) that carries out heat exchange between the refrigerant and air-conditioning air, a cooling portion (30) that cools, the hv apparatus (31) using the refrigerant that flows between the heat exchanger (14) and the expansion valve (16), a gas-liquid separator (40) that separates the refrigerant that flows between the heat exchanger (14) and the cooling portion (30) into a liquid-phase refrigerant and a gas-phase refrigerant, and a liquid accumulator (70) that is provided between the gas-liquid separator (40) and the cooling portion (30), and that retains the liquid-phase refrigerant separated by the gas-liquid separator (40).. .
A refrigerant circuit is configured by connecting, by pipes, a compressor that compresses a heat-source-side refrigerant, a first refrigerant flow switching device, a heat-source-side heat exchanger, an expansion device, and one or more intermediate heat exchangers that exchange heat between a heat-source-side refrigerant and a heat medium that is different from the heat-source-side refrigerant. A controller performs control of pumps to drive the pumps at a specific pump capacity or higher to circulate the heat medium at a time when a heat recovery defrosting operation for causing the heat-source-side refrigerant that has been heated by the heat medium in the intermediate heat exchangers to flow into the heat-source-side heat exchanger for defrosting purposes..
A computing device calculates an evaporating temperature te* and a dew-point temperature tdew* from a quality x, a temperature glide Δt determined by a difference between a boiling temperature and a dew-point temperature at a predetermined pressure, and a refrigerant temperature detected by second temperature detection means.. .
|Apparatuses and methods for use of a pump with a heatable pump chamber in a heat-pump apparatus and for operating the heat-pump apparatus|
A heat-pump apparatus for heating purposes has a collector circuit for a heat source with a collector pump for a collector fluid, also has a refrigerant circuit with an evaporator and a condenser for a refrigerant in the refrigerant circuit and with a compressor and a pressure-relief valve, and additionally has a heating circuit with a heating pump for a heating fluid, with heating means for heating purposes. At least the collector pump and/or the heating pump are/is designed in the form of a pump with a heatable pump chamber for heating the fluid delivered by the pump..
|Refrigerant charging method for air-conditioning apparatus and air-conditioning apparatus|
When a first temperature difference is the difference between a saturated gas temperature of a first refrigerant at an inlet side and a saturated liquid temperature of the first refrigerant at an outlet side in a heat exchanger for heating, and when a second temperature difference is the difference between a saturated gas temperature of a second refrigerant at an outlet side and a temperature of the second refrigerant at an inlet side in the heat exchanger for heating, the difference between the first temperature difference and the second temperature difference is held in a predetermined value or less by charging the second refrigerant to the second refrigeration cycle so that a plurality of single refrigerants forming the second refrigerant have a predetermined mixing ratio.. .
|Micro channel cooling device, micro channel cooling system, and electronic instrument|
A microchannel cooling device includes a heat sink having a liquid refrigerant flow channel having a microscopic cross section and connected to a heat source thermally, and a thermoelectric element provided on the heat sink and extending parallel to a direction of extension of the liquid refrigerant flow channel.. .
|Gas turbine with improved power output|
The application provides an apparatus for augmenting the power produced by a brayton-cycle gas turbine system of the type having an air compressor for producing compressed air, a combustor for heating said compressed air and a fuel and producing hot gases, and a gas turbine responsive to the hot gases for driving said air compressor and a load, and for producing exhaust gases. The apparatus comprises a heat exchanger interposed between a source of ambient air and the air compressor, a storage containing r744 refrigerant, connections though which said r744 refrigerant is exchanged with the heat exchanger, and a refrigerant compressor fluidly connected to said storage for circulating at least a portion of the r744 refrigerant.
|Swash plate of a swash plate type compressor and the swash plate type compressor|
A swash plate fulfils the basic properties required for a swash plate, which are stable boundary lubricating state by lubricating oil, without forming a metal spray coating layer comprising a copper type or aluminum type material on the surface of a substrate 3a forming the swash plate 3 of the swash plate type compressor as an intermediate layer. The substrate 3a of the swash plate 3 comprises a disk-shaped steel sheet formed by pressing a rolled steel sheet into a disk shape, and both surfaces of the disk-shaped steel sheet are ground.
|Method for adjusting magnetic resonance imaging apparatus and superconductive magnet excitation dock|
An adjustment method of a magnetic resonance imaging apparatus includes: a cooling and excitation step in which work of transporting a superconducting magnet to a facility different from a facility where the superconducting magnet is to be installed, cooling a superconducting coil of the superconducting magnet with a refrigerant, and supplying a current from an external power supply for excitation is repeated until a predetermined rated current flows; a demagnetization and transportation step of demagnetizing the superconducting coil and transporting the superconducting magnet to the facility where the superconducting magnet is to be installed in a state where the superconducting coil is cooled by the refrigerant; and an installation step of installing the superconducting magnet in the facility where the superconducting magnet is to be installed and supplying a predetermined rated current from an external power supply to the superconducting coil in order to excite the superconducting coil.. .
A compressor can have one or more of a suction fitting with integral louvers and a screen, a motor cap with a plurality of holes in the top surface of the motor cap to permit refrigerant to enter a suction plenum, a filter positioned over the plurality of holes in the motor cap, a filter for the cage bearing and a braze ring installed in one or more of the compressor fittings.. .
|Suction filter for a compressor|
A suction fitting for a compressor can include screens, filters, and direction control louvers to both filter out particulates and direct higher mass liquid refrigerant downward away from the inlet to the compression chamber. Alternatively, a mesh filter can be place over the opening(s) to the suction plenum to prevent debris and contaminants from entering the suction plenum..
|Motor cap for a compressor|
A motor cap has a plurality of holes in the top of the cap for the entry of refrigerant into the suction plenum. The holes are sized and located to create a tortuous path for a stream of refrigerant to enter the compression chamber.
A sealed compressor of the present invention comprises an electric component (103); a compression component (105); a sealed container (101); and a suction pipe (115); wherein the compression component (105) includes a compression chamber (141), and a suction muffler (115) through which a refrigerant gas flows; wherein the suction muffler (157) includes a muffler body (165) in which a muffling space (163) is formed, a tail pipe (159) through which a refrigerant gas is introduced into the muffling space (163); and a muffler cover (169) provided to surround the muffler body (165) such that a first space (167) is formed between the muffler cover (169) and the muffler body (165); wherein the muffler cover (169) is provided with a refrigerant inlet (175) in a portion which faces an outlet (117) of the suction pipe (115) and is in the vicinity of a suction port (171) of a tail pipe (159), the refrigerant inlet communicating the interior of the sealed container (101) with the first space (167).. .
|Motor for use in refrigerant environment|
A motor for use within a refrigerant atmosphere includes a plurality of laminations stacked along an axis, the laminations cooperating to define a plurality of teeth and a slot disposed between each pair of adjacent teeth, a plurality of coils each positioned around a tooth such that each coil is partially disposed in two adjacent slots, and a first phase winding formed from at least two coils, the first phase winding including a single continuous conductor. An insulating member is disposed within each of the slots and arranged to electrically insulate the coil within the respective slot from the laminations and a wedge is positioned within at least one of the slots.
|Refrigerator oil and working fluid composition for refrigerating machine|
The refrigerator oil of the invention comprises an ester of a polyhydric alcohol and a fatty acid with a content of a c5-c9 fatty acid of 50-100% by mole, a content of a c5-c9 branched fatty acid of at least 30% by mole and a content of a c5 or lower straight-chain fatty acid of not greater than 40% by mole, and it is used with a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant. The working fluid composition for a refrigerating machine according to the invention comprises the ester and a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant..
A method and an apparatus are provided for cooling a heat source using a refrigerant flow in a heat exchanger. According to some embodiments, a flow property of the refrigerant as it flows through a heat exchanger is measured and based on the measurement a flow distribution rate for the flow of the refrigerant in the heat exchanger is determined.
|Method for manufacturing cooling device, cooling device and electronic component package equipped with cooling device|
A method for manufacturing an integral molded cooling device, a circulation channel of a refrigerant being formed in the inside of the cooling device, the method includes: laminating a channel forming plate, a top plate and a bottom plate, a plurality of comb tooth units being provided on the channel forming plate; and integrating the channel forming plate, the top plate and the bottom plate by diffusion joining.. .
|Thermal-storage evaporator with integrated coolant tank|
An integrated thermal transfer system is provided for transferring heat between a coolant and a refrigerant in an hvac system to change a temperature of the coolant. Heat is then transferred between the coolant having a changed temperature and a device in need of thermal control, such as a battery.
|Ice maker with slide out sump|
An ice maker for forming ice using a refrigerant capable of transitioning between liquid and gaseous states, the ice maker comprising a compressor, a condenser, a thermal expansion device, an evaporator assembly, a freeze plate thermally coupled to the evaporator assembly, a sump located below the freeze plate, and a guide which permits the sump to move from a first position to a second position. The ice maker may be disposed on top of an ice storage bin having a hole through which ice produced by the ice maker may fall and when the sump is in the first position, water can be recirculated from the sump to the freeze plate by a water pump, and when the sump is in the second position, the sump is adapted to cover the hole of the ice storage bin..
|Compact dessicant and zeolite bodies for use in a downhole sorption cooling system|
A sorption cooling apparatus for cooling a region in a downhole tool deployed on a wellbore conveyance device includes a container having an interior chamber in which a first region is formed, a liquid refrigerant residing in the interior chamber, a chamber located in a second region of the downhole tool, a compact desiccant body in the chamber, and a refrigerant passage between a first region containing the liquid refrigerant and the second region containing the compact desiccant body. The vapor generated during evaporation of the liquid refrigerant passes through the vapor passage to the compact desiccant in the second region..
|Centrifugal compressor with extended operating range|
This disclosure relates to a centrifugal compressor. In a first example, the compressor includes a first impeller provided in a main refrigerant flow path, a second impeller provided in the main refrigerant flow path downstream of the first impeller, and a recirculation flow path.
An air conditioning system includes a refrigerant circuit including a compressor, an indoor heat exchanger, a first expansion valve, a gas-liquid separator, a second expansion valve, and an outdoor heat exchanger which are sequentially connected together to perform a two-stage expansion refrigeration cycle. The refrigerant circuit further includes: a gas injection pipe through which intermediate-pressure gas refrigerant in the gas-liquid separator flows into an intermediate port of the compressor, and a liquid-gas heat exchanger configured to exchange heat between low-pressure gas refrigerant obtained by evaporating refrigerant in the outdoor heat exchanger and travelling toward the compressor and intermediate-pressure liquid refrigerant travelling from the gas-liquid separator toward the second expansion valve..
|System and method for control of a transcritical refrigeration system|
A system and method for a co2 refrigeration system includes a compressor, a heat exchanger, a liquid receiver, a first valve, and a valve controller. The heat exchanger operates as a gas cooler when the co2 refrigeration system is in a transcritical mode and as a condenser when the co2 refrigeration system is in the subcritical mode.
A refrigerator includes a refrigeration cycle system including a compressor, a condenser, an expansion device, and an evaporator through which a refrigerant sequentially passes; a blower fan sending air cooled by the evaporator to a freezer compartment and a refrigerator compartment; and a damper regulating air sent from the evaporator to the refrigerator compartment, in which when the freezer compartment temperature is not satisfactory and the refrigerator compartment temperature is not satisfactory, the refrigerator operates in a concurrent operation mode in which the compressor is operated, the damper is opened, and first voltage is applied to the blower fan, and when the freezer compartment temperature is not satisfactory and the refrigerator compartment temperature is satisfactory, the refrigerator operates in a freezer compartment single operation mode in which the compressor is operated, the damper is closed, and second voltage lower than the first voltage is applied to the blower fan. Accordingly, it is possible to minimize the power consumed in the freezer compartment single operation mode..
|Multi-split hvac system|
A heating, ventilation, and/or air conditioning (hvac) system has a first variable refrigerant flow outdoor unit, a first ducted variable speed indoor unit configured to selectively exchange refrigerant with the first variable refrigerant flow outdoor unit, and a second indoor unit configured to selectively exchange refrigerant with the first variable refrigerant flow outdoor unit.. .
|Vehicle heat pump system and method utilizing intermediate gas recompression|
A vehicular heat pump system utilizing intermediate gas recompression is provided. The heat pump system is for use in a vehicle having a battery and a passenger compartment.
A rankine cycle includes an waste-heat recovery device that is configured to exchange heat between cooling water coming out from an engine and exhaust gas exhausted from the engine, a heat exchanger including an evaporator through which the cooling water coming out from the engine flows to recover waste-heat of the engine to refrigerant, and a superheater through which the cooling water coming out from the waste-heat recovery device flows to recover the waste-heat of the engine to the refrigerant, an expander that is configured to generate power using the refrigerant coming out from the heat exchanger, a condenser that is configured to condense the refrigerant coming out from the expander, and a refrigerant pump that is configured to supply the refrigerant coming out from the condenser to the heat exchanger by being driven by the expander. The cooling water coming out from the superheater is returned to the engine after being joined with the cooling water coming out from the evaporator..
|Purge phase for cryoablation systems|
A method for purging a cryotreatment system, in particular, for clearing moisture and thus preventing ice blockages within a fluid flow path that may be formed when moisture pockets within the fluid flow path of the system are encountered by a first injection of refrigerant at the beginning of a cryotreatment procedure. The method may include injecting refrigerant from a refrigerant source into a fluid delivery conduit at a preselected pressure for a first period of time, the refrigerant flowing from the fluid delivery conduit through a fluid injection element and into a fluid recovery conduit, and evacuating refrigerant from the fluid recovery conduit by vacuum pressure generated by the vacuum pump for a second period of time.
|Substrate processing apparatus, method of manufacturing semiconductor device, and non-transitory computer-readable recording medium|
Provided is a substrate processing apparatus including a reaction chamber configured to heat a substrate; a transfer chamber configured to transfer the heated substrate; a refrigerant flow path installed in the reaction chamber; a refrigerant flow path installed in the reaction chamber; a refrigerant supply unit installed in the refrigerant flow path; a refrigerant exhaust unit installed in the refrigerant flow path; a transfer chamber refrigerant supply unit installed in the transfer chamber; a transfer chamber refrigerant exhaust unit installed in the transfer chamber; a heat exchanger connected to the refrigerant exhaust pipe and the transfer chamber refrigerant exhaust unit; a turbine connected to the heat exchanger; a generator connected to the turbine; and a control unit configured to control the refrigerant supply unit and the transfer chamber refrigerant supply unit.. .
|Composition and method for delivery of living cells in a dry mode having a surface layer|
The present invention generally relates to compositions and methods of delivering living cells in a dry mode, wherein the compositions include a surface layer disposed on the outer surface of the composition that is permeable to carbon dioxide and oxygen. The compositions may be used to deliver living cells to a delivery point without the use of expensive refrigerants such as dry ice or liquid nitrogen..
|Heat transfer device|
A heat transfer device for a motor vehicle may include a pump and a heat exchanger. The heat exchanger may have a first inlet and a first outlet for a refrigerant, and a second inlet and a second outlet for a coolant.
|Hybrid redundant seal for refrigerant systems|
A connection system for carrying a refrigerant may provide a hybrid redundancy in sealing a refrigerant flow from the surround system environment. The connection system may include a first sealing ring of a first type and a second sealing ring of a second type positioned downstream from the first sealing ring.
A heat exchanger for use with a two-phase refrigerant includes an inlet header, an outlet header, and a plurality of refrigerant tubes hydraulically connecting the headers. A distributor tube has a plurality of orifices disposed in the inlet header, the end of the refrigerant tubes opposite the outlet header extends inside the inlet header and abuts a surface of the distributor tube, a portion of an inner surface of the inlet header facing the surface of the distributor tube and the surface of the distributor tube defining a first chamber.
|Splitterless internal heat exchanger and method of manufacturing the same|
A heat exchanger includes a first tube and a second tube. The first tube is configured to receive a liquid refrigerant from a condenser of the air conditioning system.
|Thermal storage evaporator and system|
A control module for a heating, ventilating, and air conditioning system includes a housing having an air flow conduit formed therein. An evaporator core is disposed in the air flow conduit, wherein at least a portion of the evaporator is configured to receive a first fluid from a first fluid source therein.
A refrigerant evaporator includes a shell having a refrigerant inlet and a refrigerant outlet, and a plurality of tubes disposed within the shell and carrying a process fluid. One embodiment includes at least a first plurality of the tubes are immersed in liquid refrigerant within the shell, and at least a second plurality of the tubes are partially immersed in liquid refrigerant and partially surrounded by gaseous refrigerant.
|Heat exchange and heat pump system using the same|
A heat exchanger includes a main core portion (6) for conducting heat exchange between an air and a refrigerant, a receiver tank (8) into which the refrigerant having passed through the main core portion flows, and a subcool core portion (10) for supercooling and liquefying a gas-liquid mixed refrigerant having passed through the receiver tank by heat exchange with the air, wherein the subcool core portion is composed of a plurality of tubes (22) arranged along a crosswise direction between left and right header tanks (20) arranged along the crosswise direction, respectively, in a state in parallel with each other and communicating with both the left and right header tanks; and fins (24) arranged between the adjacent tubes.. .
|Pumped loop cooling system|
A pumped-loop cooling system for cooling a plurality of heat-generating components that includes a plurality of first heat-generating components and at least one heat exchanger in thermal contact with the first heat-generating components for absorbing heat from the first heat-generating components via refrigerant flowing through the heat exchanger. The system also includes a plurality of second heat-generating components, a chiller for air-cooling the second heat-generating components, and a condenser for receiving and condensing refrigerant received from the heat exchanger and the chiller.
|Multiple circuit cooling system|
The present application provides a cooling system having a refrigerant-to-refrigerant heat exchanger having first and second flow passages extending therethrough and a cold plate having first and second flow passages extending therethrough, the first flow passage of the cold plate configured to communicate with the first flow passage of the heat exchanger and the second flow passage of the cold plate configured to communicate with the second flow passage of the heat exchanger. During low ambient air temperatures, a vehicle battery is cooled to its operational temperatures by the cold plate without having to operate a vapor compression loop..