Abstract: At least two components for a refrigerating cycle are integrated into a component assembly before being fixed to an object. For example, a decompressing device and a gas-liquid separator are integrated into a component assembly, and then the component assembly is fixed to an object. Alternatively, the decompressing device and an internal heat exchanger are integrated into a component assembly, and then the component assembly is fixed to an object. As another example, the decompressing device, the gas-liquid separator and the internal heat exchanger are integrated into a component assembly, and then fixed to an object.

Abstract: The integrated automotive HVAC/PTC system of the present invention includes a bi-fluidic heat exchanger between an air conditioning subsystem and a heating subsystem which enables heat extracted during dehumidification of the ventilation air to be transferred into dehumidified ventilation air. The HVAC/PTC system includes reconfigurable coolant loops and reconfigurable refrigerant loops, some of which act in concert and some of which may be isolated. Power train components, including the power supply, may be grouped by heat transfer requirements and may be cooled or heated as needed. Power train cooling is accomplished with coolant in the heating subsystem chilled by the air conditioning system.

Abstract: A collector for a liquid phase of a working medium of an air-conditioning system has a one-piece collecting container with a solid upper end wall and thickened base region for coupling blocks of a high-pressure piping system and a device for emergency emptying. Flow through an upper region of the collecting container takes place in cyclone fashion starting from an inflow channel, whose outflow direction is tangential to the inner surface of the collecting container whereas the outflow from the collecting container takes place via an end piece of a piping system arranged centrally in the collecting container.

Abstract: The invention relates to an inner heat exchanger for high-pressure refrigerants which is also used as an accumulator or refrigerant collector in air conditioning circuits. The inner heat exchanger includes an outer cylinder arranged and an inner cylinder arranged therein. The inner cylinder is designed as a bent flat sheet or tube with microchannels for refrigerant under high pressure. The liquid refrigerant under low pressure is collectable within the inner cylinder. Between inner cylinder and outer cylinder are formed channels in which the vaporous refrigerant under low pressure flows from a low-pressure inlet to a low-pressure outlet.

Abstract: A gas-liquid separator (accumulator) is arranged at a refrigerant suction side of a compressor of a refrigerant cycle system mounted in a vehicle. The gas-liquid separator includes a gas-liquid separation portion for separating refrigerant into gas refrigerant and liquid refrigerant, and a liquid refrigerant storage portion for storing therein the separated liquid refrigerant. In the gas-liquid separator, the gas-liquid separation portion is arranged approximately vertically, and the liquid refrigerant storage portion is arranged approximately horizontally with respect to the approximately vertically arranged gas-liquid separation portion. Therefore, mounting performance of the gas-liquid separator in the vehicle can be effectively improved while gas-liquid separation can be accurately performed.

Abstract: Air conditioner, and method for controlling an operation of the same, the air conditioner including a sheath heater in the accumulator for heating the refrigerant in room heating for delaying deposition of frost on the outdoor heat exchanger. The sheath heater includes a coil formed heat generating part, and two electrodes connected to the heat generating part for supplying power. The method including the step of varying the heat generating rate of the sheath heater with an exterior temperature or a capacity of the indoor unit, thereby delaying deposition of frost on the outdoor heat exchanger.

Abstract: An accumulator for an air conditioning system, including a housing (10) with an elongated tubular wall (12). The accumulator also includes an internal heat exchanger fitted in the housing (10). The internal heat exchanger has a tubular structure (40) with radially protruding ribs (40, 42) arranged coaxially with the housing wall (12).

Abstract: In an ejector-type depressurizer, a nozzle arrangement converts pressure energy of refrigerant supplied from a radiator into velocity energy to depressurize and expand the refrigerant, and a pressurizer arrangement mixes the refrigerant discharged from the nozzle arrangement with the refrigerant drawn from an evaporator and converts the velocity energy of the refrigerant discharged from the nozzle arrangement into pressure energy to increase the pressure of the mixed refrigerant discharged from the pressurizer arrangement. The pressurizer arrangement includes a refrigerant passage that conducts the refrigerant supplied from the nozzle arrangement and the refrigerant supplied from the evaporator, and the refrigerant passage includes a refrigerant passing zone, through which the refrigerant from the nozzle arrangement and the refrigerant from the evaporator mainly pass during operation of the ejector-type depressurizer.

Abstract: The proposed design describes a refrigeration system with an evaporator, which allows inherent absorption of heat from the ambient, a condenser returning refrigerant to a liquid state, a compressor delivering refrigerant within the system but with refrigerant flowing through a heat exchanger from the compressor to the receiver and flowing through such a heat exchanger parallel to the flow of low pressure gas leaving the evaporator in a vertical configuration which precludes the flow of liquid from the evaporator to the compressor but maintains the constant pressures and constant flow of refrigerant within the heat exchanger to maximize the efficiency of the system.

Abstract: An improved accumulator is disclosed, which includes a body having an empty space therein; an inlet tube inserted into the inside of the body from a top thereof, downwardly, for an inflow of a refrigerant to the inside of the body; an outlet tube inserted into the inside of the body from a bottom thereof, upwardly, for a discharge of the refrigerant to the outside of the body; and an isolating plate provided on an inner bottom of the body between the inlet tube and the outlet tube, for preventing the outlet tube from being splashed with the liquid phase refrigerant, and preventing the liquid phase refrigerant from flowing into the outlet tube.

Abstract: A baffle for use in a refrigerator apparatus comprises a baffle plate comprising a first and a second opposing sides attached to an inner surface of the refrigerator apparatus, a baffle seal plate attached along a third side of the baffle plate, the baffle plate seal plate attached to the inner surface of the refrigerator apparatus.

Abstract: A chiller-condenser is disposed downstream of a condenser and a chiller-evaporator is disposed downstream of the chiller-condenser. A main three-way valve is disposed between the compressor and the condenser for directing flow from the compressor to the condenser in the air-conditioning mode and for directing flow from the compressor through a by-pass line to the chiller-condenser in the heat pump mode. A heat pump (HP) expansion device shown as an orifice tube expands the refrigerant in the heat pump mode and an by-pass valve is disposed between the chiller-condenser and the chiller-evaporator for directing flow from the chiller-condenser through the heat pump expansion device and to the chiller-evaporator in the heat pump mode. An air-conditioning (A/C) expansion device shown as orifice tube is disposed downstream of the condenser and upstream of the by-pass line for expanding the refrigerant in the air-conditioning mode.

Abstract: In an ejector refrigerant cycle, even if refrigerant is super-heated in an evaporator, super-heated gas refrigerant does not directly flow into a gas-liquid separator, so that boiling of refrigerant does not occur in the gas-liquid separator due to evaporation of refrigerant in the gas-liquid separator. When an equivalent inner diameter (D) of a tank body of the gas-liquid separator is set in a range of 2 cm–6 cm, and when a ratio of a vertical dimension (H) of the tank body to the equivalent inner diameter (D) thereof is larger than 1, a wall thickness of the tank body can be reduced while gas-liquid separation performance in the gas-liquid separator can be improved.

Abstract: A vehicle air conditioner selectively switches one of a cooling mode in which an interior heat exchanger of a refrigerant cycle is operated as an evaporator for cooling air, and a heating mode in which the interior heat exchanger is operated as a radiator for heating air. In the vehicle air conditioner, an accumulator, for separating gas refrigerant and liquid refrigerant from each other and for storing the separated liquid refrigerant therein, is disposed between an outlet of the interior heat exchanger and a suction port of a compressor. Further, the accumulator includes a heating device for heating the liquid refrigerant stored in the accumulator in the heating mode. Therefore, heating performance for heating air in heating mode can be efficiently improved.

Abstract: An accumulator acts as a buffer to prevent over-pressurization of the vapor compression system while inactive. By determining the maximum storage temperature and the maximum storage pressure a system will be subject to when inactive, a density of the refrigerant for the overall system can be calculated. Dividing the density by the mass of the refrigerant determines an optimal overall system volume. The volume of the components is subtracted from the overall system volume to calculate the optimal accumulator volume. The optimal accumulator volume is used to size the accumulator so that the accumulator has enough volume to prevent over-pressurization of the system when inactive.

Abstract: The object of the present invention is to prevent refrigerant from flowing out into a vehicle compartment due to damage to an evaporator or piping associated therewith. A solenoid valve is arranged at an inlet of an evaporator, and a check valve is arranged at an outlet of the evaporator. When operation of a system is to be stopped, the solenoid valve is closed while a compressor is kept operating for a predetermined time to suck out refrigerant from the evaporator to a downstream side of the check valve, so that during stoppage of the operation, the check valve prevents the refrigerant from flowing back into the evaporator. Thus, even if the evaporator arranged in the vehicle compartment or piping associated therewith is damaged, a situation where a large amount of refrigerant flows out of the evaporator into the vehicle compartment does not occur because no refrigerant remains in the evaporator, making it possible to prevent occupants in the vehicle compartment from being put in a grave situation.

Abstract: A refrigerant cycle system in which the arrangement of a connecting pipe for connection between a compressor and an accumulator is improved effectively to recover oil collected in the accumulator to the compressor. The accumulator is installed to be separate from the compressor. A connecting pipe is arranged between the compressor and the accumulator to feed a refrigerant gas separated in the accumulator to the compressor. An oil recovery hole is provided at an inlet portion of the connecting pipe received in the accumulator such that it is arranged at a level higher than a highest level portion of the connecting pipe located outside of the accumulator. A second accumulator may be connected between the connecting pipe and the compressor while being directly installed at the compressor. In this case, the connecting pipe has an outlet portion connected to the second accumulator.

Abstract: A refrigerant cycle system includes a first heat-exchanging portion for condensing gas refrigerant discharged from a compressor, a gas-liquid separator into which all of refrigerant after passing through the first heat-exchanging portion and a part of gas refrigerant discharged from the compressor are introduced, and a second heat-exchanging portion for cooling and condensing refrigerant flowing from the gas-liquid separator. Because all of the condensed refrigerant from the first heat-exchanging portion is introduced into the gas-liquid separator, a passage area of a gas refrigerant introduction passage for introducing gas refrigerant from the compressor into the gas-liquid separator can be set relatively large. Therefore, a dimension difference of the gas refrigerant introducing passage in manufacturing is not greatly affected to an adjustment of a liquid refrigerant amount in the gas-liquid separator.

Abstract: In a vehicle air conditioner having front and rear air conditioning units, a refrigerant cycle includes front and rear evaporators for cooling air in a cooling mode, a hot-gas bypass passage through which hot-gas refrigerant discharged from a compressor flows into the front evaporator while bypassing a condenser in a heating mode, and a fixed throttle between the condenser and the front evaporator for decompressing refrigerant flowing from the condenser in the cooling mode. Further, a refrigerant outlet side of the fixed throttle and a refrigerant outlet side of the hot-gas bypass passage are joined to a refrigerant pipe, and a refrigerant outlet of the refrigerant pipe is connected to a refrigerant inlet of the front evaporator. Therefore, a refrigerant pipe structure of the refrigerant cycle can be made simple.

Abstract: An ejector includes a nozzle having therein a throat portion, and a needle valve that extends at least from the throat portion to the outlet of the nozzle. The needle valve is displaced in an axial direction of the nozzle to adjust an opening degree of the throat portion and an opening degree of an outlet of the nozzle. Therefore, even when a flow amount of refrigerant flowing into the nozzle is changed, it can prevent a vertical shock wave from being generated by suitably adjusting both the opening degrees of the throat portion and the opening degree of the outlet of the nozzle. Accordingly, nozzle efficiency can be improved regardless of a change of the flow amount of the refrigerant.

Abstract: A vessel for containing a refrigerant fluid in a vapor compression system. The vessel includes a housing defining a fixed interior volume and an internal structure subdividing the interior volume into a storage chamber and a displacement chamber. The storage chamber is in fluid communication with the vapor compression system and stores both liquid phase and gas phase refrigerant during normal operation of the system. The displacement chamber may be repositionable or have a variable volume wherein varying the volume of the displacement chamber inversely varies the volume of the storage chamber. The volume of the displacement chamber may be controlled by the transfer of thermal energy to a working fluid within the displacement chamber to thereby thermally expand or contract the working fluid.

Abstract: The present invention provides an oil equalizing circuit for a refrigeration system provided with a plurality of compression mechanisms, the oil equalizing circuit being capable of supplying sufficient oil to the compressors that are running during partial load operation. The refrigeration system compression mechanism is provided with the following: first, second, and third compressors; a refrigerant intake main pipe; first, second, and third intake branch pipes connected to the intake sides of the compressors; first, second, and third oil separators connected to the discharge sides of the compressors; and first, second, and third oil return pipes provided on the oil separators. The first oil return pipe is configured such that oil is delivered to the refrigerant intake main pipe due to gravity when only the first compressor is running. The second oil return pipe is configured such that oil is delivered to the refrigerant intake main pipe due to gravity when only the first and second compressors are running.

Abstract: A compressor having a housing with a compression mechanism mounted therein. A suction fluid passageway is located in the housing through which the compression mechanism receives refrigerant fluid. A thermoelectric device is in thermal communication with refrigerant fluid substantially at suction pressure in the suction fluid passageway. The thermoelectric device receives thermal energy from the suction fluid passageway and refrigerant fluid therein with the thermal energy being transferred from the compressor assembly.

Abstract: An ice cream machine for cooling liquid ice cream into frozen ice cream includes an evaporator having a cylindrical cooling tank and an auxiliary tank. The auxiliary tank ensures that the cylindrical cooling tank is flooded with liquid refrigerant during normal operation. The flooding of the cylindrical cooling tank provides more efficient and even cooling in an interior cooling chamber. The more efficient cooling allows the ice cream machine to utilize a smaller compressor, thereby reducing the cost and energy consumption of the ice cream machine. The auxiliary tank can be a coil of tubing or a cylindrical container positioned above the cylindrical cooling tank.

Abstract: An accumulator having a heater therein and an air conditioning system using the same is disclosed, in which the accumulator includes a body having an empty space therein; an inlet tube inserted into the inside of the body through a predetermined external point, for an inflow of a refrigerant to the inside of the body; an outlet tube inserted into the inside of the body from a predetermined external point, for a discharge of the refrigerant to the outside of the body; and at least one heater provided in the inside of the body, for heating the flowing refrigerant.

Abstract: A multi-function condenser for an air conditioning system includes a first header, a second header, a plurality of tubes, and a conduit. The tubes extend in parallel relationship between the headers for establishing fluid communication between the first header and the second header. The second header includes a header portion and a receiver portion. A conduit extends into and out of and is surrounded by the receiver portion to define a space between the conduit and the receiver portion. Heat is transferred between hot refrigerant flowing in the receiver portion, the header portion, and cooler refrigerant flowing through the conduit as the refrigerant flows through the conduit independently of the refrigerant flowing in the space and in the header portion to increase an overall efficiency of the air conditioning system.

Abstract: The efficiency of refrigeration systems operating on the vapor compression cycle and employing suction line heat exchangers is increased by introducing refrigerant into the lower pressure side of the suction line heat exchanger at a quality less than 1 and introducing refrigerant that has passed through the low pressure side of the suction line heat exchanger into the compressor inlet at a quality that is equal to 1.

Abstract: In a vapor-compression refrigerant cycle having an ejector, a mixture refrigerant of a first refrigerant and a second refrigerant is used. When the mixture refrigerant is decompressed and expanded in a nozzle of the ejector, the first refrigerant has an adiabatic heat drop that is larger than that of the second refrigerant. Further, the second refrigerant has an evaporation latent heat that is larger than that of the first refrigerant. In a gas-liquid separator, a gas-phase amount of the first refrigerant is made larger than that of the second refrigerant, and a liquid-phase amount of the second refrigerant is made larger than that of the first refrigerant. For example, the first refrigerant is propane, and the second refrigerant is butane. Accordingly, expansion energy recovered in the nozzle can be effectively converted to pressure energy in a pressure increasing portion of the ejector while cooling capacity of an evaporator can be improved.

Abstract: In a vehicle air conditioning system, a cold accumulator is disposed between a downstream air side of a cooling heat exchanger and an upstream air side of a heating heat exchanger to be cooled by cold air having passed through the cooling heat exchanger. Further, the cold accumulator is disposed at the upstream air side of an air mixing door.

Abstract: A baffle for use in a refrigerator apparatus comprises a baffle plate comprising a first and a second opposing sides attached to an inner surface of the refrigerator apparatus, a baffle seal plate attached along a third side of the baffle plate, the baffle plate seal plate attached to the inner surface of the refrigerator apparatus.

Abstract: The efficiency of refrigeration systems operating on the vapor compression cycle and employing suction line heat exchangers is increased by introducing refrigerant into the lower pressure side of the suction line heat exchanger at a quality less than 1 and introducing refrigerant that has passed through the low pressure side of the suction line heat exchanger into the compressor inlet at a quality that is equal to 1.

Abstract: A module is provided which includes a manifold, an elongated medium capable of effecting mass transfer or energy transfer through the medium and a bowl which houses the medium. The medium and bowl are connected to each other by a key which is secured to flat surfaces on the medium to form a unitary construction. The medium and bowl are in fluid communication with the manifold in a manner which prevents mixing of a first fluid feed and a second fluid feed to the module.

Abstract: A gas-liquid separator (accumulator) is arranged at a refrigerant suction side of a compressor of a refrigerant cycle system mounted in a vehicle. The gas-liquid separator includes a gas-liquid separation portion for separating refrigerant into gas refrigerant and liquid refrigerant, and a liquid refrigerant storage portion for storing therein the separated liquid refrigerant. In the gas-liquid separator, the gas-liquid separation portion is arranged approximately vertically, and the liquid refrigerant storage portion is arranged approximately horizontally with respect to the approximately vertically arranged gas-liquid separation portion. Therefore, mounting performance of the gas-liquid separator in the vehicle can be effectively improved while gas-liquid separation can be accurately performed.

Abstract: A collector for the liquid phase of the working medium of an air conditioning system has first and second connecting pipes provided for connection into the circuit of an air conditioning system. One of the connecting pipes continues in a guide tube which is guided through the interior of the container of the collector. Part of the guide tube runs through the bottom region of the container, which is provided for vertical arrangement, and has at least one opening for recycling collected oil and the liquid phase of the working medium into the working medium circulating through the air conditioning system. In order to separate the liquid phase of the working medium of the air conditioning system, a cyclone-like separating device is provided. The separating device has a cyclone chamber and a central outflow connecting pipe forming an overflow. One of the connecting pipes leads tangentially into the cyclone chamber and the open end of the guide tube ends at a short distance before the outflow connecting pipe.

Abstract: An accumulator for use in a motor vehicle air conditioning system. The accumulator comprises an accumulator housing, an outlet fluid pipe assembly and an inlet fluid pipe assembly. The accumulator housing has a top wall, a bottom wall and a side wall connecting the top wall to the bottom wall. The outlet fluid pipe assembly has an inlet end. The inlet fluid pipe assembly includes a tubular first portion and a diverter/diffusing portion configured to direct refrigerant flowing through the first portion towards the sidewall and downwardly away from the top wall of the accumulator housing. The first tubular portion has an axis offset from the inlet end of the outlet fluid pipe assembly.

Abstract: The object of the present invention is to prevent refrigerant from flowing out into a vehicle compartment due to damage to an evaporator or piping associated therewith. A solenoid valve is arranged at an inlet of an evaporator, and a check valve is arranged at an outlet of the evaporator. When operation of a system is to be stopped, the solenoid valve is closed while a compressor is kept operating for a predetermined time to suck out refrigerant from the evaporator to a downstream side of the check valve, so that during stoppage of the operation, the check valve prevents the refrigerant from flowing back into the evaporator. Thus, even if the evaporator arranged in the vehicle compartment or piping associated therewith is damaged, a situation where a large amount of refrigerant flows out of the evaporator into the vehicle compartment does not occur because no refrigerant remains in the evaporator, making it possible to prevent occupants in the vehicle compartment from being put in a grave situation.

Abstract: An improved accumulator is disclosed, which includes a body having an empty space therein; an inlet tube inserted into the inside of the body from a top thereof, downwardly, for an inflow of a refrigerant to the inside of the body; an outlet tube inserted into the inside of the body from a bottom thereof, upwardly, for a discharge of the refrigerant to the outside of the body; and an isolating plate provided on an inner bottom of the body between the inlet tube and the outlet tube, for preventing the outlet tube from being splashed with the liquid phase refrigerant, and preventing the liquid phase refrigerant from flowing into the outlet tube.

Abstract: An accumulator having a heater therein and an air conditioning system using the same is disclosed, in which the accumulator includes a body having an empty space therein; an inlet tube inserted into the inside of the body through a predetermined external point, for an inflow of a refrigerant to the inside of the body; an outlet tube inserted into the inside of the body from a predetermined external point, for a discharge of the refrigerant to the outside of the body; and at least one heater provided in the inside of the body, for heating the flowing refrigerant.

Abstract: In a vehicle air conditioner having front and rear air conditioning units, a refrigerant cycle includes front and rear evaporators for cooling air in a cooling mode, a hot-gas bypass passage through which hot-gas refrigerant discharged from a compressor flows into the front evaporator while bypassing a condenser in a heating mode, and a fixed throttle between the condenser and the front evaporator for decompressing refrigerant flowing from the condenser in the cooling mode. Further, a refrigerant outlet side of the fixed throttle and a refrigerant outlet side of the hot-gas bypass passage are joined to a refrigerant pipe, and a refrigerant outlet of the refrigerant pipe is connected to a refrigerant inlet of the front evaporator. Therefore, a refrigerant pipe structure of the refrigerant cycle can be made simple.

Abstract: An accumulator having an improved baffle connection and a related method of interlocking an outlet tube and baffle within annular grooves of a passage of an enclosure to prevent blow by of liquid refrigerant fluid past the baffle connection. The baffle includes a cylindrical extension having a mounting passage through which an outlet tube extends. The cylindrical extension and outlet tube extend into the passage of the enclosure and are engaged within one or more of the annular grooves of the enclosure to interlock the baffle and outlet tube to the enclosure. The enclosure preferably includes a puck having the passage therethrough, where the puck is inserted into a canister and then welded thereto.

Abstract: A compression system including a compressor driven by a motor, an optional accumulator, a liquid/gas separator, heat exchangers in the form of a condenser and an evaporator, expansion valves and conduit in the form of piping to connect these components together. The liquid/gas separating means is a lubricant separator, typically a cylindrical horizontal or vertical vessel used in conjunction with a gas compressor. The lubricant separator accepts discharge flow from the compressor which includes a mixture of a “smokeless” lubricant and refrigerant gas in a range of particle sizes forming a fluid stream, separates the refrigerant gas from the lubricant and collects the lubricant for reuse in the compressor. Because the lubricant used in the lubrication system rapidly agglomerates into larger size droplets and does not produce an aerosol, the separator does not require a coalescer element to coalesce aerosol and does not require a manway for serving the coalescer element.

Abstract: A compression device for use in a HVAC&R system that includes a compressor for compressing vaporized refrigerant having a compressor inlet and compressor outlet for directing compressed refrigerant downstream along a first conduit to a condenser. An accumulator is provided for preventing liquid refrigerant from reaching the compressor. The accumulator has an accumulator inlet for receiving refrigerant along a second conduit from an upstream evaporator and an accumulator outlet in fluid communication with the compressor inlet for receiving vaporized refrigerant therein. The accumulator and compressor are integrally connected thereto so that the accumulator and compressor may be installed into a refrigerant recycling system by connecting the compressor outlet with the first conduit and connecting the accumulator inlet with the second conduit. A desiccant is disposed inside the accumulator between the accumulator inlet and outlet for removing moisture from the refrigerant.

Abstract: In a refrigerating apparatus using an HFC group refrigerant, the performance is improved by increasing the refrigerating capacity and a stable operation is made possible. In order to achieve this, a cycle system in a refrigerator is structured so as to connect a compressor, a condenser, a liquid receiver and a supercooler in this order. In an air-cooled separation type refrigerator, the liquid receiver is disposed within an air-cooled type condenser unit. Further, in the case where a flush gas is liable to be generated in a liquid pipe, a vapor-liquid separator is disposed within the compressor unit integral with an accumulator and separated therefrom by a partition plate.

Abstract: This invention relates to a dual evaporator air conditioning system that limits refrigerant recirculation. This system includes an accumulator, a compressor, a condenser, front and rear evaporators, and an eductor assembly. Alternative accumulators are also disclosed for use with dual and single evaporator systems.

Abstract: A refrigerant cycle system includes a condenser having a condensation portion for condensing refrigerant discharged from a compressor, and a receiver for separating refrigerant from the condensation portion into gas refrigerant and liquid refrigerant, and for storing the liquid refrigerant. In this system, refrigerant from the condensation portion flows into the receiver through a first communication hole, and liquid refrigerant in the receiver is discharged through a second communication hole in which a pressure loss is generated. Further, gas refrigerant at an upper side in the receiver is discharged to a downstream side of the second communication hole through a gas bypass pipe.

Abstract: A compressor having a vibration reducing structure comprising: a hermetic container having a suction pipe and a discharge pipe communicated thereto, a driving force generating means located in the hermetic container for generating a driving force, a compression unit for compressing gas by receiving the driving force from the driving force generating means; and an accumulator arranged at one side of the hermetic container and connected to one side of the suction pipe for filtering gas, wherein the suction pipe is provided with a vibration preventing means which absorbs vibration so as to prevent vibration generated at the compression unit from being transmitted to the accumulator through the suction pipe, thereby reducing noise due to the vibration and increasing a reliability of the compressor.

Abstract: An adsorbent unit including first and second porous containers, adsorbent in the first and second porous containers, a first and second end on each of the first and second containers, a yoke connecting the first ends, spaced first apertures in the yoke, a severance in the yoke extending between and in communication with the first apertures, a tab on each of the second ends of the first and second porous containers, and a second aperture in each of the tabs.

Abstract: This refrigeration system is an orifice-tube system constituting a refrigeration cycle in which a refrigerant passes through a compressor 1, a condenser 10, an orifice-tube 3, an evaporator 4, and an accumulator 5 in this order and then returns to the compressor 1. The condenser 10 is constituted by the so-called multi-flow type heat exchanger having a plurality of passes P1-P3. The intermediate pass P2 is constituted as a decompression pass for decompressing the refrigerant. After condensing the refrigerant by the first pass P1, the condensed refrigerant is decompressed and evaporated by the decompression pass P2, and then the evaporated refrigerant is re-condensed by the third pass P3. This refrigeration system is excellent in response characteristic to thermal load fluctuations and in refrigeration performance.

Abstract: An integrated unit (10) in a refrigeration system (100) wherein a low-pressure conduit (18) and high-pressure conduit (36) are in conductive heat exchange relation to each other within an accumulator housing (12). The low pressure conduit (18) and high-pressure conduit (36) may be flat tubes wherein broad sides of the flat tubes are in conductive heat exchange relation to each other. The low-pressure conduit (18) and high-pressure conduit (36) or tubes have longitudinal axes (40, 42, respectively) that extend parallel to one another over a length (44) within the integrated unit (10).

Abstract: Refrigerant fluid such as CO2, compressed to the supercritical pressure by a compressor, is delivered selectively through a three-way valve, either into a branch of the circuit containing a cooler, an expansion device and an evaporator for cooling the cabin of a vehicle, or into a branch containing another expansion device and a heat exchanger for the purpose of heating the cabin.