Abstract: System and methods for oil circulation ratio (OCR) sensing with a suction-line accumulator are provided. The accumulator may include a sensor configured to detect the level of oil. The accumulator may further include a valve which opens when oil is at a high-level and closes when oil is at a low-level. The accumulator may measure a mass flow rate of oil in the vapor compression cycle system based on an amount of time taken to fill a portion of the accumulator. The accumulator may further determine an oil circulation ratio based on the measured time taken to fill the portion of the accumulator. The smart accumulator may output the oil circulation ratio.

Abstract: A cold plate apparatus that has an outlet plenum leading to an outlet opening includes an outlet transition that connects the outlet opening to the outlet plenum. The outlet transition defines a smoothly curving flow path from a direction along a long dimension of the outlet plenum, which is parallel to a plane defined by the outlet opening, to a direction along a centerline of the outlet opening, which is at an angle from the plane defined by the outlet opening. The outlet transition provides a smooth variation of cross-sectional area from the outlet plenum to the outlet opening.

Abstract: An apparatus for depressurizing a pair of accumulators to provide high pressure gas includes a tank in fluid communication with each one of the pair of accumulators for receiving vapor from the pair of accumulators for storage and dispensing the vapor to a remote location other than the pair of accumulators and external atmosphere, a first fluid connection including a first valve assembly interconnecting the tank and a first accumulator of the pair of accumulators, a second fluid connection including a second valve assembly interconnecting the tank and a second accumulator of the pair of accumulators, wherein the first fluid connection with the first valve assembly and the second fluid connection with the second valve assembly are each constructed and arranged to deliver the vapor from a corresponding one of the first accumulator and the second accumulator to the tank during alternating intervals. A related method and system are also provided.

Abstract: A heat exchanger including a first header tank and a second header tank that are disposed to be spaced apart a predetermined distance in a height direction and a core part that is disposed between the first header tank and the second header tank and includes a plurality of tubes and fins, the first header tank including a first header plate, a first tank, and a first partition wall that divides a space formed by a combination of the first header plate and the first tank to form a plurality of flow paths, the first partition wall being provided with a main communication hole and an auxiliary communication hole, and an area ratio of the auxiliary communication hole being 3 to 7% of an area of the main communication hole.

Abstract: An embodiment heat exchanger includes a first flow path through which a refrigerant discharged from a condenser and drawn into an expansion valve flows and a second flow path through which the refrigerant discharged from a vapor-liquid separator and drawn into a compressor flows, wherein the heat exchanger is configured to perform a heat exchange between the refrigerant flowing through the first flow path and the refrigerant flowing through the second flow path.

Abstract: Example embodiments of the present disclosure relate to a climate control system and methods for controlling the system. Some embodiments include a system that includes a refrigerant circuit with both a main circuit and a bypass circuit, where the main circuit directs the refrigerant fluid from a compressor to a first heat exchanger, a metering device, a second heat exchanger, and an accumulator, and the bypass circuit selectively directs a portion of the refrigerant fluid to a third heat exchanger. The bypass circuit includes a bypass control valve and a bypass metering device, the bypass control valve controlling the flow of the portion of the refrigerant fluid to be directed to the third heat exchanger, and the bypass metering device lowering the temperature of the portion of the refrigerant fluid before the portion of the refrigerant fluid enters the third heat exchanger. The third heat exchanger may be located proximate the accumulator.

Abstract: A compressor liquid accumulator and a compressor are provided. The compressor liquid accumulator has a first suction cup and a second suction cup. The surface of the first suction cup, which faces the second suction cup, is provided with a first welding surface. The facing of the second suction cup, which faces the first suction cup, is provided with a second welding surface. The first welding surface and the second welding surface are connected in a welded manner. The first suction cup and the second suction cup define a cavity. The first suction cup is provided with a first extending portion is adjacent to the first welding surface. The first extending portion is located in a part of the cavity defined by the second suction cup.

Abstract: A refrigeration system includes a heat exchanger configured to provide superheat control for the low temperature low pressure gas refrigerant flowing out of the evaporator and through the first side of the heat exchanger by transferring heat from the high pressure high temperature superheated gas refrigerant flowing through a second side of the heat exchanger. A modulating solenoid valve is located at the inlet of the second side of the heat exchanger and configured to modulate the flow of high pressure high temperature superheated gas refrigerant flowing through the second side of the heat exchanger. A temperature sensor is located in such a way as to measure the temperature of the gas refrigerant flowing out of the evaporator and through the first side of the heat exchanger. A controller is configured to calculate the superheat of the gas refrigerant based on the measured temperature and measured pressure of the gas refrigerant and may compare the calculated superheat to a superheat threshold.

Abstract: An integrated thermal management system for a vehicle may make refrigerant-related components compact by modularizing the refrigerant-related components.

Abstract: A heat pump system includes a compressor, a usage side heat exchanger, a heat source side heat exchanger, an expansion mechanism, a main refrigerant flow control valve switchable between cooling and heating modes, a gas reheat heat exchanger, a fan, and a secondary refrigerant flow control device switchable between first, second, and third modes. Refrigerant flows from the compressor discharge line to the main refrigerant flow control device in the first mode. Refrigerant flows from discharge line to gas reheat heat exchanger and then main refrigerant flow control valve in the second mode. Refrigerant flows both from discharge line to gas reheat heat exchanger and then main refrigerant flow control valve, and from discharge line to main refrigerant flow control valve without flowing through the gas reheat heat exchanger in the third mode. Refrigerant flows to the usage side and hot gas reheat heat exchanger in the heating mode.

Abstract: A gas-liquid separator includes a first cylinder, a second cylinder and a heat exchange assembly. The first cylinder is surrounded by the second cylinder at a predetermined distance. The heat exchange assembly is arranged between the first cylinder and the second cylinder. The heat exchange assembly includes a collecting pipe. An extension direction of the collecting pipe is parallel to an axial direction of the first cylinder. At least a part of a side wall surface of the first cylinder is formed with an avoidance portion recessed inwardly. At least a part of the collecting pipe is arranged between the avoidance portion and the second cylinder.

Abstract: A heating, ventilation, and air-conditioning (“HVAC”) system for use with a refrigerant. The HVAC system includes a compressor, a condenser, an expansion device, an evaporator, and a separator. The compressor is operable to compress the refrigerant. The condenser is positioned downstream of the compressor and operable to condense the refrigerant. The expansion device is positioned downstream of the condenser and operable to reduce a pressure of the refrigerant flowing therethrough. The evaporator is positioned downstream of the expansion device and operable to vaporize the refrigerant from the expansion device. The separator is positioned downstream of the expansion device and operable to separate the refrigerant into liquid refrigerant and gaseous refrigerant. The gaseous refrigerant from the separator and the liquid refrigerant from the separator are combined prior to being compressed by the compressor.

Abstract: Beverage container heating apparatuses and associated methods for using such apparatuses are disclosed. In one embodiment, for example, a flexible band or sleeve is configured to wrap around an exterior surface of a beverage container. The flexible band can include a first layer configured to be positioned in contact with the exterior surface of the beverage container. The first layer comprises a reflective surface facing the beverage container and a heating element configured to provide heat to the exterior surface of the beverage container. The flexible band may also include a second layer adjacent to and covering at least a portion of the first layer. The second layer can include a removable insulation assembly. The flexible band further includes a third layer adjacent to and covering at least a portion of the second layer. The third layer can include various electronic components, such as a control circuitry and a battery.

Abstract: A cooling system includes a compressor operable to compress refrigerant, an accumulator upstream from the compressor. The accumulator is operable to collect liquid from the refrigerant. A sensor is located upstream from the accumulator. The sensor is operable to detect information including a temperature and a pressure of the refrigerant. The controller is in communication with the sensor. The controller is operable to determine a rate of accumulation of liquid in the accumulator based on the information from the sensor. A method of operating a cooling system is also disclosed.

Abstract: A system and method for reducing the refrigerant charge in a refrigeration system by preheating the liquid refrigerant before it is introduced to the evaporator inlet. When refrigerant liquid is introduced to the evaporator inlet, a portion of the refrigerant liquid vaporizes. This refrigerant vapor displaces refrigerant liquid at the inlet of the evaporator. As more refrigerant vapor is introduced, the amount of liquid inside the evaporator is reduced. A heat exchanger is placed before the liquid refrigerant inlet of the evaporator to generate more vapor when the refrigerant enters the evaporator.

Abstract: A mobile air conditioner, comprising: a first heat exchanger, having a first interface and a second interface for a refrigerant to enter and exit; a phase-change energy storage heat exchange device, including a second heat exchanger and a phase-change energy storage working medium, wherein the second heat exchanger and the phase-change energy storage working medium may exchange heat therebetween, and the second heat exchanger has a third interface and a fourth interface for the refrigerant to enter and exit; a first refrigerant pipeline, connected to the first interface and the third interface; and a second refrigerant pipeline, connected to the second interface and the fourth interface.

Abstract: The present disclosure relates to controls and related methods for mitigating liquid (e.g., compressor refrigerant, etc.) migration and/or floodback.

Abstract: A refrigeration system includes a heat exchanger configured to provide superheat control for the low temperature low pressure gas refrigerant flowing out of the evaporator and through the first side of the heat exchanger by transferring heat from the high pressure high temperature superheated gas refrigerant flowing through a second side of the heat exchanger. A modulating solenoid valve is located at the inlet of the second side of the heat exchanger and configured to modulate the flow of high pressure high temperature superheated gas refrigerant flowing through the second side of the heat exchanger. A temperature sensor is located in such a way as to measure the temperature of the gas refrigerant flowing out of the evaporator and through the first side of the heat exchanger. A controller is configured to calculate the superheat of the gas refrigerant based on the measured temperature and measured pressure of the gas refrigerant and may compare the calculated superheat to a superheat threshold.

Abstract: A compressor includes: a first cylinder, the first cylinder being provided with a first gas intake and a first gas outlet, the first air outlet being connected to a predetermined heat exchanger; a second cylinder, the second cylinder being provided with a second gas intake and a second gas outlet, and the second gas outlet being connected to the predetermined heat exchanger; and a gas pre-exhausting device. The gas pre-exhausting device is provided on a cylinder block of the first cylinder or on an upper end surface of the first cylinder or a lower end surface of the first cylinder; the gas pre-exhausting device includes a gas pre-exhausting port and a first control valve controlling the gas pre-exhausting port to be open or closed; and the gas pre-exhausting port is connected to the second gas intake. Further disclosed is an air conditioner system including the compressor.

Abstract: An air conditioner may include a compressor that compresses a refrigerant; a condenser that condenses the refrigerant discharged from the compressor; at least one expansion valve that expands the refrigerant passed through the condenser; at least one gas-liquid separation pipe through which the refrigerant passed through the at least one expansion valve flows; a gas-liquid separator, into which the refrigerant passed through the at least one gas-liquid separation pipe is introduced, that separates and discharges the refrigerant introduced into the gas-liquid separator into gas refrigerant and liquid refrigerant; and an evaporator that evaporates the liquid refrigerant discharged from the gas-liquid separator. The gas refrigerant discharged from the gas-liquid separator and the refrigerant passed through the evaporator may be provided to the compressor.

Abstract: Thermal management systems are described. These systems include a refrigerant receiver configured to store a refrigerant fluid, an evaporator, a closed-circuit refrigeration system having a closed fluid circuit path, with the refrigerant receiver and evaporator disposed in the closed fluid circuit path, and the closed fluid circuit path including a condenser and compressor. These systems also include a modulation capacity control circuit configured to selectively divert refrigerant vapor flow to the condenser from the compressor by diverting a portion of refrigerant vapor flow (diverted flow) from the compressor to the refrigerant receiver in accordance with cooling capacity demand.

Abstract: This air conditioning device, which is installed in a vehicle, is provided with a gas-liquid separator which separates liquid-phase refrigerant and gas-phase refrigerant, guides, to a compressor, the gas-phase refrigerant flowing in from an outdoor heat exchanger during heating operations, and guides, to an expansion valve, the liquid-phase refrigerant flowing in from the outdoor heat exchanger during cooling operations. The gas-liquid separator is provided further rearward inside the vehicle than the outdoor heat exchanger. The compressor is provided further rearward inside the vehicle than the gas-liquid separator.

Abstract: A gas-liquid separator includes a first cylinder, a second cylinder, a heat exchange pipe, a flow guide pipe, a distribution portion, and a lower sealing cover. The gas-liquid separator has a first cavity and a second cavity. The second cavity includes at least the space located in the first cylinder. The distribution portion includes a first passage. One end of the first passage is communicated with that of the flow guide pipe. The other end of the flow guide pipe is communicated with the second cavity. The other end of the first passage is communicated with the first cavity. The lower sealing cover is located at the other side far away from the distribution portion. The gas-liquid separator further includes a flow passage located, at least in part, in the lower sealing cover, communicated with the first cavity and communicated with the second cavity.

Abstract: A refrigeration system includes: a compressor arrangement for compressing gaseous refrigerant from a first pressure to a second pressure, wherein the second pressure comprises a condensing pressure; a plurality of condenser evaporator systems, wherein each condenser evaporator system comprises: a condenser for receiving gaseous refrigerant at a condensing pressure and condensing the refrigerant to a liquid refrigerant; a controlled pressure receiver for holding the liquid refrigerant from the condenser; and an evaporator for evaporating liquid refrigerant from the controlled pressure receiver to form gaseous refrigerant; a first gaseous refrigerant feed line for feeding the gaseous refrigerant at the second pressure from the compressor arrangement to the plurality of condenser evaporator systems; and a second gaseous refrigerant feed line for feeding gaseous refrigerant from the plurality of condenser evaporator systems to the compressor arrangement.

Abstract: An HVAC system includes a refrigerant liquid-gas separator. The liquid-gas separator is thermally coupled to electronics to transfer heat away from the electronics, and assist in vaporizing liquid refrigerant. The liquid-gas separator device includes a refrigeration section configured to couple to a refrigeration loop, and electronics thermally coupled to the refrigeration section. The refrigeration section includes: (a) a refrigerant inlet configured to receive refrigerant from the refrigeration loop; (b) a refrigerant outlet configured to release vapor refrigerant to the refrigeration loop; and (c) a cavity coupled to the refrigerant inlet and the refrigerant outlet, the cavity configured to separate liquid refrigerant from vapor refrigerant. During use of the HVAC system, heat from the electronics board is transferred to the refrigerant. The liquid-gas separator includes a check valve configured to inhibit flow of refrigerant into the liquid-gas separator device via the refrigerant outlet.

Abstract: An air conditioner system is disclosed. The air conditioner system includes: a compressor; a four-way valve configured to provide a refrigerant circulation path depending on an operation mode of the air conditioner system; a blocking valve disposed between the compressor and the four-way valve; a circulation line configured to provide a path for introducing a refrigerant discharged from the compressor back into the compressor, when the blocking valve is in a closed state; and a controller configured to control the blocking valve based on a pressure of the refrigerant discharged from the compressor.

Abstract: An evaporator for use in a refrigeration system includes one or more Coanda evaporation chambers having an integrated, internal expansion device. The internal expansion device is a linear atomization tube having a plurality of ejection holes arranged in a series of spiral rows. Liquid refrigerant introduced into the linear atomization to is ejected onto the inner wall of the Coanda evaporation chamber, covering it completely with a thin layer of liquid refrigerant. Liquid refrigerant is fed to the linear atomization device in a series of rapid pulses.

Abstract: An air-conditioning system of a motor vehicle having refrigerant circulation and coolant circulation. Refrigerant circulation comprises a compressor, a refrigerant-coolant heat exchanger operable as condenser/gas cooler for heat transfer between the refrigerant and the coolant, a first expansion element and a first refrigerant-air heat exchanger for conditioning the inflowing air for the passenger compartment. Coolant circulation is developed with a conveying device, a first coolant-air heat exchanger for heating the inflowing air for the passenger compartment, a second coolant-air heat exchanger and the refrigerant-coolant heat exchanger. Refrigerant circulation also includes a second refrigerant-air heat exchanger, operable exclusively as evaporator. Upstream of the second refrigerant-air heat exchanger in the direction of flow of the refrigerant, a second expansion element is disposed. The second expansion element and the second refrigerant-air heat exchanger are disposed within a first flow path.

Abstract: A tractor including an intake pipe for supplying intake air to an intake unit of an engine body, and an engine harness for electrically connecting the engine body and an engine controller to each other. The intake pipe is provided with a rib formed along the longitudinal direction of the intake pipe, and the engine harnesses is partially supported by the rib.

Abstract: A gas-liquid separation device for a vehicle includes: a housing of which an upper surface is opened and a lower surface is closed; a cover disposed on the upper surface of the housing, and the cover having an outlet disposed at a center region of the cover and an inlet disposed at a portion spaced apart from the center region; an exhaust pipe of which an upper end is connected to the outlet; a guide pipe having a cylinder shape with an upper surface opened and having a gas refrigerant flow space; a mounting cap disposed on the lower surface of the housing; and a refrigerant guider disposed on the cover inside the housing to prevent a liquid refrigerant from flowing into the gas refrigerant flow space among a refrigerant flowing into the inlet.

Abstract: Methods and systems for recuperated superheat return are provided. A coolant is supplied in a vapor state to a compressor. The coolant compressed by the compressor is cooled with a gas cooler. The coolant cooled by the gas cooler is supplied to an inlet of a high pressure side of a recuperator. The coolant from an outlet of the high pressure side of the recuperator is supplied to a portion of a coolant circuit. The coolant is supplied back from the portion of the coolant circuit to an inlet of a low pressure side of the recuperator. The coolant in the low pressure side of the recuperator is heated with thermal energy transferred by the recuperator from the coolant in the high pressure side of the recuperator. The coolant in the vapor state from an outlet of the low pressure side of the recuperator is supplied to the compressor.

Abstract: Provided is an accumulator that can effectively suppress impact noise associated with a bumping phenomenon when a compressor is operating, without an increase in the complexity, cost, or size of the accumulator. An inlet port 15 is disposed in the lower portion of a tank 10, and a gas-liquid separation accelerating plate 22 is disposed above inlet port 15 inside the tank 10 so that the gas-liquid separation accelerating plate 22 is opposite the inlet port 15.

Abstract: A device for distributing a fluid to a processing component includes a vessel having an inlet port for receiving a stream of fluid. A vapor outlet line is in fluid communication with the fluid processing component and has a vapor outlet line inlet in fluid communication with the headspace of the vessel. A liquid outlet line has a liquid outlet line inlet in fluid communication with a liquid side of the vessel and the fluid processing component.

Abstract: A receiver having a receiver housing that has a fluid-receiving chamber, a fluid inlet, and a fluid outlet. A drier is provided in the fluid-receiving chamber. The receiver is has an inlet channel protrudes into the fluid-receiving chamber, which inlet channel has a channel outlet in the fluid-receiving chamber and conducts fluid into the fluid-receiving chamber from the fluid inlet as a channel inlet, the inlet channel being shaped in such a way that the fluid flowing out of the channel outlet flows out in a lateral direction. A condenser having the receiver is also provided.

Abstract: Provided is a structure for a vehicle air conditioner. The structure comprises a compressor and an accumulator. The accumulator comprises an elastic member that has a thermal insulation property. The elastic member is provided on an external surface of the accumulator. The accumulator is held to a vehicle body by an attachment bracket. A plate holds the bottom surface of the accumulator. Further, the accumulator is held in a pressed state by the attachment bracket via the elastic member.

Abstract: A refrigerant circuit includes: plural gas/liquid separators adapted to separate a two-phase gas-liquid refrigerant into refrigerant vapor and refrigerant liquid; a channel switching valve connected upstream of the gas/liquid separators and adapted to switch channels for the two-phase gas-liquid refrigerant by opening and closing; an evaporating heat exchanger adapted to accept inflow of the refrigerant liquid or the two-phase gas-liquid refrigerant, the refrigerant liquid produced by separation by the gas/liquid separators; a header installed upstream of the evaporating heat exchanger perpendicularly or at angles to the evaporating heat exchanger; a compressor installed downstream of the evaporating heat exchanger; and plural bypass routes connected to the respective gas/liquid separators and adapted to allow passage of the refrigerant vapor.

Abstract: The present application provides a refrigeration system. The refrigeration system may include a suction header, a compressor, a suction header oil return line in communication with the suction header and the compressor, and an oil line control system. The oil line control system may include a sensor and a valve to open and shut the suction header oil return line in response to the sensor.

Abstract: A cold storage heat exchanger includes a plurality of tubes, a coolant flowing in the tubes, a cold storage material container joined to the tubes, the cold storage material container defining a room that houses a cold storage material, and a distribution tank unit that distributes the coolant to the tubes. A coolant passage is formed in the tubes and the distribution tank unit. The distribution tank unit includes an aperture plate that reduces a passage cross-sectional area of the coolant passage. Among the plurality of tubes, the cold storage material container is joined to at least a tube disposed upstream in a coolant flow direction from the aperture plate in the coolant passage. Accordingly, cold storage performance may be improved.

Abstract: Provided is an accumulator capable of effectively suppressing a bumping phenomenon and the following impact noise during the starting of a compressor without making the structure of the accumulator complicated or increasing the cost and the size thereof, and so having cost-effectiveness. An accumulator includes: a tank 10 having an inflow port 15 and an outflow port 16; and a double-pipe structured outflow pipe 30 including an inner pipe 31 joined to the outflow port 16 and hanging inside of the tank 10, and an outer pipe 32 disposed outside of the inner pipe 31. A cloth-like member such as felt or a foam material 60 is wound around or externally inserted to the outer pipe 32.

Abstract: A refrigeration apparatus uses R32 as refrigerant, and includes a compressor, condenser, expansion mechanism, evaporator, accumulator, branching flow path, opening degree adjustment valve disposed in the branching flow path, injection-use heat exchanger and a first injection flow path. The accumulator has an inside space to separate and accumulate refrigerant. The injection-use heat exchanger causes heat exchange between refrigerant flowing through the main refrigerant flow path and that has passed through the opening degree adjustment valve of the branching flow path. The first injection flow path guides the refrigerant that has flowed through the branching flow path and exited the injection-use heat exchanger to the inside space of the accumulator. A distal end of the first injection flow path is located in a height position separated by a dimension from a bottom of the inside space. The dimension is 0 to 0.3 times a height dimension of the inside space.

Abstract: The invention relates to a module for a heat pump, comprising an adsorption-desorption region, wherein in the region a bundle of pipes through which fluid can flow is arranged and a housing encloses the pipe bundle and a movable working medium in a sealing manner, wherein a supporting structure forms a mechanical support of a wall of the housing against the action of an external pressure.

Abstract: A rotary compressor includes: a compressor body including an airtight container that has a refrigerant intake opening and a refrigerant discharge opening, a refrigerant compression unit that has a cylinder and a rotary piston housed in the cylinder and that is provided in the airtight container, and an electric motor that drives the rotary piston and is provided in the airtight container; and an accumulator configured to separate a refrigerant suctioned into the refrigerant intake opening into gas and liquid. The accumulator and the refrigerant intake opening are connected via a refrigerant intake pipe, a suction opening of the refrigerant intake pipe is arranged to be opened to the inside of the accumulator, an injection pipe for pouring the refrigerant into the rotary compressor is inserted into the accumulator from above, and a discharge opening of the injection pipe is drawn to face the suction opening of the refrigerant intake pipe in a refrigerant gas space of the accumulator.

Abstract: An air conditioning apparatus including a compressor, an outdoor heat exchanger, an indoor heat exchanger, and an expansion valve to depressurize a refrigerant. The refrigerant is formed of hydro fluorocarbon (HFC). The compressor includes a compression unit to compress the refrigerant, a motor unit to provide rotational power to the compression unit, and an oil accommodation portion to store oil to reduce friction between the rotating shaft and the compression unit and lower a temperature of the compressor, and the oil contains a carbon nanoparticle. Even when an HFC-based refrigerant producing high discharge temperature in a compressor is used, deterioration of the compressor due to the high temperature is prevented. In addition, by lowering the operational temperature of the compressor, the reliability and performance of the compressor using the HFC-based refrigerant and the air conditioning apparatus using the same may be enhanced.

Abstract: The invention relates to a combined device (12) comprising a casing (26) made of an upper wall (27), a down wall (28) and a lateral wall (29). The said casing (26) accommodates an internal heat exchanger (5), a separation area (19) and an accumulation area (20). The casing (26) accommodates an internal component (30) which is made of: a partition wall (31) of the separation area (19) and the accumulation area (20), a confining wall (32) of the internal heat exchanger (5) versus the accumulation area (20), and a pipe (33) which is between the confining wall (32) and the partition wall (31).

Abstract: An accumulator for a cooling fluid is provided that includes a floor. The floor has an interface for connecting a chamber of the accumulator to at least one cooling tube. The floor also has an opening that extends at least over a partial area of the chamber. The accumulator furthermore has a lid that is embodied in such a way as to seal the opening of the floor in a fluid-tight manner. The lid is embodied as wire or extrusion profile.

Abstract: An accumulator and an air conditioner having the same are provided. The air conditioner may include at least one indoor unit connected to an outdoor unit, the outdoor unit including a compressor compressing refrigerant and an accumulator transferring gas refrigerant into the compressor. The accumulator may include a housing, an inflow tube guiding refrigerant into the housing through a guide tube, and a discharge tube discharging the refrigerant from the housing. A portion of the guide tube protrudes out of the housing, and a distance between the discharge tube and a bottom of the housing is greater than that between the protruded portion of the guide tube and the bottom of the housing.

Abstract: A condenser evaporator system includes: a condenser constructed for condensing a gaseous refrigerant from the source of compressed gaseous refrigerant; a controlled pressure receiver for holding liquid refrigerant; a first liquid refrigerant feed line for conveying liquid refrigerant from the condenser to the controlled pressure receiver; an evaporator for evaporating liquid refrigerant; and a second liquid refrigerant feed line for conveying liquid refrigerant from the controlled pressure receiver to the evaporator. The condenser evaporator system can be provided as multiple condenser evaporator systems operating from a source of compressed gaseous refrigerant.

Abstract: A system (200; 300; 400; 500; 600) has a compressor (22; 200, 221). A heat rejection heat exchanger (30) is coupled to the compressor to receive refrigerant compressed by the compressor. An ejector (38) has a primary inlet (40) coupled to the heat rejection heat exchanger to receive refrigerant, a secondary inlet (42), and an outlet (44). A separator (48) has an inlet (50) coupled to the outlet of the ejector to receive refrigerant from the ejector, a gas outlet (54), and a liquid outlet (52). One or more valves (244, 246, 248, 250) are positioned to allow switching of the system between first and second modes.

Abstract: A compressor assembly having a compressed gas tank having a tank dampening device in the form of a vibration absorption member. The vibration absorption member can provide a pressure to a portion of the compressed gas tank. A method of controlling sound emitted from a compressor assembly, by using a vibration absorber which exerts a force upon the compressed gas tank. A means for controlling the sound level of a compressed gas tank by using a means for absorbing vibration from the compressed gas tank which exerts a pressure on a portion of the compressed gas tank.

Abstract: A refrigeration apparatus uses R32 as refrigerant, and includes a compressor, condenser, expansion mechanism, evaporator, accumulator, branching flow path, opening degree adjustment valve disposed in the branching flow path, injection-use heat exchanger and a first injection flow path. The accumulator has an inside space to separate and accumulate refrigerant. The injection-use heat exchanger causes heat exchange between refrigerant flowing through the main refrigerant flow path and that has passed through the opening degree adjustment valve of the branching flow path. The first injection flow path guides the refrigerant that has flowed through the branching flow path and exited the injection-use heat exchanger to the inside space of the accumulator. A distal end of the first injection flow path is located in a height position separated by a dimension from a bottom of the inside space. The dimension is 0 to 0.3 times a height dimension of the inside space.