Abstract: A method for refrigerant and oil collecting operation capable of assuring the cleanliness of the inside of an existing communication pipe at a low cost and installing, at a low cost, a new air conditioner, comprising a compressor (1), a heat source side heat exchanger (3), a decompressing mechanism (4), and a user side heat exchanger (5), comprising the steps of performing a pipe heating operation in a heating operation mode and performing a refrigerant and oil collecting operation to collect refrigerant to a heat source side heat exchanger (3), namely, with the refrigerant heated to a temperature higher than that where contaminants such as refrigerator oil inside a refrigerant circuit is dissolved into the refrigerant, performing the refrigerant and oil collecting operation so as to assure the cleanliness of the inside of the existing communication pipes (7, 8).

Abstract: A receiver for a vehicle air conditioner having a pair of headers and a plurality of tubes defining a plurality of refrigerant flow stages between the headers. The receiver includes a housing in refrigerant flow connection with one of the condenser headers, and a receiving device removably secured in the housing. The device includes first and second members sealing against the receiver to define respective spaced first and second walls, and at least one connection line is in or on the receiving device and bridges the spacing between the first and second walls, with the connection line being adapted to guide refrigerant through the spacing from one stage to another stage. Desiccant is provided in the housing between the first and second sealing members.

Abstract: A desiccant container (2) which comprises a generally cylindrically cross-sectioned cup, two dual-density fiberglass discs (6, 8), desiccant material (4), and a cap (16). The cup includes an outer annular portion, an inner tubular portion, and a bottom which connect together to define a space within. The cap (16) has a planar portion with an aperture for receiving the inner wall portion of the cup and is designed for receipt in the chamber to cover the opening. The cap further includes an outer annular rim portion extending transversely from the planar portion. The peripheral flange portion having tabs with an edge portion which permit the cap to cooperate with the outer wall portion having tabs with an edge portion which permit the cap to cooperate with the outer wall portion so that the cap can be retained within the chamber in one of a number of axially spaced positions to prevent shifting of, and escape of the desiccant.

Abstract: Multi-type air conditioner is disclosed for effective removal of foreign matters in refrigerant pipelines, including an outdoor unit having a compressor, an outdoor heat exchanger, a flow path control valve for controlling a flow path of the refrigerant from the compressor, and an outdoor unit piping system, a plurality of indoor units each having an indoor unit expansion device, an indoor heat exchanger, an indoor piping system, a distributor for receiving refrigerant from the outdoor unit, distributing the refrigerant to the indoor units proper to respective operation modes, and returning to the outdoor unit again, connection pipelines connected between the outdoor unit and the distributor, and foreign matter cutting off means mounted on each of the connection pipelines for prevention of the foreign matters from entering into the compressor of the outdoor unit.

Abstract: A refrigeration apparatus is provided with a vapor compression type refrigerant circuit. With this apparatus, reliability from the standpoint of the pipe cleaning mode of the apparatus is improved. The air conditioning system has a main refrigerant circuit that has a compressor, a heat-source-side heat exchanger, and a user-side heat exchanger. The air conditioning system also has a contaminant collecting device provided on the intake side of the compressor (21). The contaminant collecting device is equipped with a contaminant collecting container, an inlet pipe, an outlet pipe, and a main opening/closing device. The contaminant collecting container separates contaminants from refrigerant flowing in the intake gas pipe toward the compressor when the refrigerant is directed through it. The inlet and outlet pipes are each provided with a return preventing shape for preventing contaminants that have accumulated inside the pipes from returning to the intake gas pipe.

Abstract: An automotive air conditioning refrigerant recycling system incorporates an improved upstream oil separator that removes virtually all contaminating lubricants from a refrigerant stream before the refrigerant is delivered to sensitive downstream components of the recycling system. The oil separator includes a vaporizing chamber wherein refrigerant vaporizes while dissolved lubricants precipitate and a mist arrestor for trapping remaining lubricant entrained in the refrigerant vapor. The oil separator also may incorporate a temperature controller for controlling the temperature of the refrigerant stream in order to separate other contaminants such as hexane and hexane derivatives, Menthol Chloride, Isoparafins and other contaminants from the stream. A bi-directional valve allows refrigerant to move through the chamber in one direction and bypass the chamber in the opposite direction.

Abstract: The invention relates to a condenser (1) comprising an integrated collector (5) which is arranged parallel to one of the collector tubes (2) and is connected to said connector tube via two overflow opening (8 and 9). Said collector (5) is used to receive a drying/filtering unit (11). The condenser (1), consisting of tubes (3), ribs (4) and collector tubes (2), is produced by welding. According to the invention, the drying/filtering unit (11) is introduced into the collector (5) before the welding process and is positioned therein or connected thereto in a fixed manner. The collector (5) is then closed and the entire condenser (1) is welded. The connection between the drying/filtering unit (11) and the collector (5) is thus carried out before or during the welding process by means of welding. The invention is preferably used for air conditioning systems in motor vehicles.

Abstract: Fluid decontamination device includes a base having a fluid passage in it. An observation window is provided in the base for allowing a user to observe a fluid in the fluid passage. A differential pressure indicator, such as a vacuum indicator, is operatively connected to the fluid passage for indicating the relative pressure in the fluid. An indicator light which turns on when the differential pressure in the fluid passage is less than a predetermined differential pressure may be provided on the differential pressure indicator. A filter may be fluidly connected with the fluid passage for filtering out one or more contaminants present in the fluid.

Abstract: A method for operating a cryocooler which provides opportunity for timely intervention prior to failure thus enhancing the reliability of the provision of the refrigeration wherein contaminant concentration downstream of a compressor but upstream of the cryocooler is monitored and the time rate of change of the contaminant concentration is used to calculate a service time.

Abstract: A condenser for an air conditioning system includes a core assembly having a header tank and a receiver/dehydrator member operably connected to the core assembly for condensing a refrigerant flowing internally. The receiver/dehydrator or receiver member includes two openings to receive male couplers extending from a tubular member connected to the core assembly. The condenser includes a coupler that extends into the receiver/dehydrator member between each opening and the male couplers to form a seal therebetween. The coupler and the male coupler are connected one with the other by brazing. In an alternative embodiment, the male coupler includes a snap-in element to engage the male coupler with the coupler.

Abstract: A receiver (24) in a condenser system (20) includes a body (32) in fluid communication with a header (28) of the condenser system (20). A service cartridge (154) is insertable into an interior cavity (106) of the body (32). The service cartridge (154) includes a substantially-rigid tubular member (156). Covers (166, 168), each having openings (170, 172), are coupled to opposing ends of the tubular member (78). A spindle (179) is non-detachably coupled to each of the first cover (166) and a cap (180). The cap (180) is configured for threaded attachment to a service end of the body (32) of the receiver (24). Refrigerant 150 is received by the tubular member (156) via the first openings (170), and is discharged from the tubular member (156) via the second openings (172). The service cartridge (154) includes multiple features for drying, filtering, and/or leak detection.

Abstract: A receiver (24) for a condenser system (20) includes a body (32) in fluid communication with a header (28) of the condenser system (20). A first cap (38) is coupled to an end (34) of the body (32) and has a saddle portion (40) coupled to the header (28). The receiver (24) further includes a tube section (42) coupled to a second end (36) of the body. A second cap (50) is removably interconnected with the tube section (42) following insertion of a service cartridge (76) into the body (32). The service cartridge (76) includes a substantially-rigid tubular member (78) having rib members (84) radially extending from an outer surface (86) of the tubular member (78). Covers (90, 92), each having openings (94, 96), are coupled to opposing ends of the tubular member (78). The service cartridge (76) includes multiple features for drying, filtering, and/or leak detection.

Abstract: A desiccant container for use in an accumulator or a receiver/dryer of a vehicle includes at least one integral mesh screen for preventing small particles from passing therethrough. Preferably, the container includes two integral mesh screens, one forming an upper surface of the desiccant container and the other forming a lower surface of the desiccant container. By incorporating integral mesh screens, the container need not include separate filters.

Abstract: An insert is provided for use in a refrigerant receiver of a vehicular air conditioning system. The receiver has an interior that receives the insert and a charge of desiccant. The receiver is connected to a header of a condenser by a refrigerant inlet to the interior from the header and a refrigerant outlet from the interior to the header. The insert includes a wall having a first and second oppositely facing sides. The first side lies closer to the inlet than the second side with the insert received in the interior of the receiver. A first portion of the wall is aligned with the inlet, and at least the first portion is substantially impervious to the refrigerant flow from the inlet to shield the desiccant charge from direct impingement by refrigerant flow from the inlet. In one embodiment, the second side cooperates with a surface of the interior to define a receptacle for the desiccant. In another embodiment, the second side defines a receptacle surrounding the desiccant.

Abstract: A first, optional second, optional third air conditioning systems employing air condensers and/or water condensers, coupled to a water source are disclosed. The water source includes a water to air heat exchanger, which is not coupled to nor provides cooling to either a habitable interior space or an attic.

Abstract: A liquid injection type scroll compressor is used to a refrigerating apparatus using hydrocarbon fluoride refrigerant which does not contain chlorine (HFC-125/HFC-143a/HFC-134a) as an operating fluid and an amount of an injected liquid is controlled according to a discharge temperature of the compressor. Further, ester oil and/or ether oil is used as refrigerator oil and a dryer is disposed in a refrigerating cycle. With this arrangement, a refrigerating cycle operation can be stably realized in a wide range without almost changing the arrangement of a conventional refrigerating apparatus.

Abstract: A refrigerant connection includes a ferrule positioned within a threaded nut. The threaded nut is received on a connector body. A seal is positioned between the ferrule and the connector body. As the nut is turned on the connector body, the ferrule squeezes the seal. The seal is cylindrical such that sealing surfaces are provided at each axial end and at an outer periphery. In this way, the seal is not as sensitive to surface imperfections in the various components as was the case in the prior art.

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: A refrigerant filter/dryer assembly isolates, removes, and replaces a filter/dryer core, and allows the vapor-compression heat pump system to continue to operate while the filter/dryer is being replaced. The refrigerant flow is automatically by-passed and the filter/dryer core is isolated for removal. The filter/dryer easily connects back into the refrigerant flow path. An indicator can be provided for indicating the remaining useful life of the filter/dryer while it is being used in the system.

Abstract: In a receiver-drier including a cylindrical body and a lower cap sealing a lower end portion of the body, the body includes a filter support portion sectioning the body into upper and lower portions and having at least one inwardly protruding portion supporting an upper end portion of the filter accommodated in the lower portion of the body, at least one refrigerant inlet formed in the upper portion of the body, a coupling portion formed by inwardly pressing the body between the filter support portion and the lower end portion of the body so that an inner surface of the pressed body is coupled to the lower cap, and at least one refrigerant outlet disposed between the filter support portion and the coupling portion.

Abstract: This filter-drier for removing moisture from a refrigerant includes a casing having an inlet for receiving refrigerant, an outlet for discharging refrigerant and a molded core, formed from dessicant and a binder, and disposed in the casing between the inlet and the outlet and receiving refrigerant flow therethrough. The molded core includes an outer surface at least in part engaging the inner surface of the casing. The core is held within the casing against axial movement by bonding with the casing or by an indentation protruding into the core or both.

Abstract: To provide a refrigerating cycle apparatus which uses carbon dioxide as a working medium, in which a problem associated with reliability arisen from introduction of water into a refrigeration cycle has been solved. Carbonic acid produced by a reaction of carbon dioxide or a mixed refrigerant including carbon dioxide and water is efficiently removed by providing a flow channel of the refrigeration cycle with a carbonic acid trapping agent, and consequently, the refrigerating cycle apparatus with high reliability which can prevent deterioration of a carbon dioxide refrigerant, decomposition of a refrigeration oil, corrosion of metal components or the like is constructed.

Abstract: The invention relates to a method and system for purifying exhaust gas, especially a solvent-containing exhaust gas from refrigerator recycling, wherein the dried, pressurized exhaust gas is cryogenically condensed, the condensed components are seperated from the remaining exhaust gas, the cold and purified pressurized exhaust gas is passed through an adsorber to adsorbe the remaining condensed components, the adsorber is purged with a warmed gas stream, namely either a warmed inert gas stream or the purified exhaust gas respectively at reduced pressure, and the desorbed gas is recycled.

Abstract: This filter-drier for removing moisture from a refrigerant includes a casing having an inlet for receiving refrigerant, an outlet for discharging and a molded core disposed in the casing between inlet and outlet. In one embodiment, the core includes an outer surface in part engaging the inner surface of the casing. Axial movement of the core is prevented by bonding with the casing or by an indentation protruding into the core or both. Another embodiment-includes a filter media pad bonded to the core sufficiently to hold the pad in place eliminating the need for outlet support screens. In another embodiment suitable for reversible operation in a heat pump system, the filter-drier includes a hollow cylindrical core having a filter media bonded to the core and defining a filter media lined passage, the core being held in place by end plates having opposed axial check valves and offset check valves.

Abstract: This filter-drier for removing moisture from a refrigerant includes a casing having an inlet for receiving refrigerant, an outlet for discharging and a molded core disposed in the casing between inlet and outlet. In one embodiment, the core includes an outer surface in part engaging the inner surface of the casing. Axial movement of the core is prevent by bonding with the casing or by an indentation protruding into the core or both. Another embodiment includes a filter media pad bonded to the core sufficiently to hold the pad in place eliminating the need for outlet support screens. In another embodiment suitable for reversible operation in a heat pump system, the filter-drier includes a hollow cylindrical core having a filter media bonded to the core and defining a filter media lined passage, the core being held in place by end plates having opposed axial check valves and offset check valves.

Abstract: A refrigerant connection includes a ferrule positioned within a threaded nut. The threaded nut is received on a connector body. A seal is positioned between the ferrule and the connector body. As the nut is turned on the connector body, the ferrule squeezes the seal. The seal is cylindrical such that sealing surfaces are provided at each axial end and at an outer periphery. In this way, the seal is not as sensitive to surface imperfections in the various components as was the case in the prior art.

Abstract: The invention relates to a condenser (1) comprising an integrated collector (5) which is arranged parallel to one of the collector tubes (2) and is connected to said connector tube via two overflow openings (8 and 9). Said collector (5) is used to receive a drying/filtering unit (11). The condenser (1), consisting of tubes (3), ribs (4) and collector tubes (2), is produced by welding. According to the invention, the drying/filtering unit (11) is introduced into the collector (5) before the welding process and is positioned therein or connected thereto in a fixed manner. The collector (5) is then closed and the entire condenser (1) is welded. The connection between the drying/filtering unit (11) and the collector (5) is thus carried out before or during the welding process by means of welding. The invention is preferably used for air conditioning systems in motor vehicles.

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: An automotive air conditioning refrigerant recycling system incorporates an improved upstream oil separator that removes virtually all contaminating lubricants from a refrigerant stream before the refrigerant is delivered to sensitive downstream components of the recycling system. The oil separator includes a vaporizing chamber wherein refrigerant vaporizes while dissolved lubricants precipitate and a mist arrestor for trapping remaining lubricant entrained in the refrigerant vapor. The oil separator also may incorporate a temperature controller for controlling the temperature of the refrigerant stream in order to separate other contaminants such as hexane and hexane derivatives, Menthol Chloride, Isoparafins and other contaminants from the stream. A bi-directional valve allows refrigerant to move through the chamber in one direction and bypass the chamber in the opposite direction.

Abstract: The present invention is a method and apparatus to provide for the safe and effective removal and neutralization of ammonia from a stream of waste oil or other liquid. The apparatus consists of a receiving tank, a treatment tank, circulation piping, associated controls, pumping and monitoring mechanisms. The primary utility for the invention is with commercial and industrial refrigeration units. The neutralizing solution in the treatment tank is circulated through the piping which includes a venturi that is used to induce a negative gage pressure in the receiving tank by creating a suction that draws gases from the receiving tank. The negative pressure allows the receiving tank to pull the mixture of waste oil and entrained ammonia from the drain port of the refrigeration system even when the system is below atmospheric pressure. The venturi also removes ammonia gas from the receiving tank.

Abstract: A conduit has a first end and interior and exterior surfaces extending downstream from the first end. A strainer has a first end and a second end. An upstream portion of the strainer is positioned engaging a projection on the interior surface of the conduit to resist downstream shifting of the strainer. A strainer body extends at least partially downstream of the upstream portion. The apparatus may be used as a strainer/coupler and may be used to filter water in a chiller apparatus.

Abstract: A canister is attached to a header tank and includes an upper inlet and a lower outlet. Before end cap is brazed to close the bottom of canister, a tube of desiccant material is installed into the canister by a standoff. The standoff includes a disk shaped base and narrow central post which is comparable in length to the height of the inlet above the lower end cap. This is followed by inserting a spur of a higher melting temperature into the canister into a position and extending radially from the post and into an interference fit with the interior wall of the canister that is tighter than the interference fit between the base and the canister.

Abstract: Multi-type air conditioner is disclosed for effective removal of foreign matters in refrigerant pipelines, including an outdoor unit having a compressor, an outdoor heat exchanger, a flow path control valve for controlling a flow path of the refrigerant from the compressor, and an outdoor unit piping system, a plurality of indoor units each having an indoor unit expansion device, an indoor heat exchanger, an indoor piping system, a distributor for receiving refrigerant from the outdoor unit, distributing the refrigerant to the indoor units proper to respective operation modes, and returning to the outdoor unit again, connection pipelines connected between the outdoor unit and the distributor, and foreign matter cutting off means mounted on each of the connection pipelines for prevention of the foreign matters from entering into the compressor of the outdoor unit.

Abstract: There are provided a compact and portable refrigerant recovery device which can easily recover a refrigerant present in a refrigeration circuit of a used-up household refrigerator or an extra-low temperature freezer which uses a low boiling point refrigerant at low costs, and a method for recovering a refrigerant by using the refrigerant recovery device. In the refrigerant recovery device comprising a refrigerant recovery tank which stores an activated carbon for adsorbing the refrigerant, the recovery tank is equipped with a detachable cap, and the activated carbon is wrapped in unwoven cloth finer than a grain diameter of the activated carbon, and stored in the recovery tank. The refrigerant recovery device is connected to the refrigeration circuit, a gas in the refrigerant recovery tank is vacuumed to be discharged before the refrigerant of the refrigeration circuit is recovered, and then the refrigerant is adsorbed on the activated carbon to be recovered.

Abstract: To prevent foreign particles from entering the inlet of a solenoid valve during assembly in a coolant circuit, a particle filter is connected upstream of the inlet.

Abstract: The invention relates to a receiver-drier for use in an air conditioning system. This receiver-drier has (a) a lower portion defining a lower chamber in the receiver-drier; (b) an upper portion defining an upper chamber in the receiver-drier; and (c) a strainer for removing foreign particles from the refrigerant. The lower portion has an inlet for allowing the refrigerant to flow into the lower chamber and an outlet for allowing the refrigerant to flow out of the lower chamber. Each of the inlet and the outlet is formed at a bottom of the lower portion. The upper chamber is on top of the lower chamber and is charged with a desiccant for removing moisture from the refrigerant. The strainer is disposed at a position in a flow of the refrigerant from the inlet to the outlet.

Abstract: To provide a low-cost block-type expansion valve containing a strainer. A block-type expansion valve is configured such that a hollow cylindrical strainer is arranged in a space for introducing high-pressure liquid refrigerant, in a manner surrounding a valve element, and the refrigerant introduced into a refrigerant pipe-connecting hole is permitted to flow into a space on the upstream side of the valve element 17 via the strainer. Therefore, since the shape of a body is not substantially changed, it is possible to provide the expansion valve at low costs by suppressing an increase in the manufacturing costs to the cost of the strainer.

Abstract: A receiver-tank for use in a refrigeration cycle of this invention is provided with a filtering layer 435 formed so that an upper space 402 is formed above the filtering layer 435 in a tank main body 401. An upper end of a refrigerant outlet 441 in a tank bottom wall 421 is opened toward the upper space 402. The refrigerant flowed into the tank main body 401 from the refrigerant inlet 431 passes through the filtering layer 435 upwardly, and forms liquid-stagnation R in the upper space 402. The liquefied refrigerant of liquid-stagnation R flows out of the refrigerant outlet 441. Thereby, only the stable liquefied refrigerant can be extracted more assuredly.

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 oil diversion and collection system used in a compressor having a housing, a crankshaft having shaft seals, refrigerant and a compression device for compressing the refrigerant. The system includes a shaft sealing mechanism that uses a lubricant for preventing compressor refrigerant from leaking out of the compressor housing and has a space where the lubricant collects. A diversion mechanism is deployed for directing excess amounts of said lubricant from the space to a receiver for receiving the excess amounts of said lubricant from the diversion mechanism. The receiver may be in the form of an internal cavity which includes a removable cartridge located in the cavity for collecting the excess amounts of said lubricant, an external collection reservoir or an external drainage tube.

Abstract: A condenser system (20) includes a first header (26), a second header (28), and parallel tubes (30) extending between the headers (26, 28). A receiver (24), affixed to the second header (28), is in fluid communication with the second header (28). The receiver includes a body (32), a first cap (38) coupled to the body (32), and a second cap (42) coupled to the body. The condenser system (20) is subjected to a one-shot brazing process that nondetachably couples the receiver (24) to the second header (28), and concurrently nondetachably couples the first and second caps (38, 42) to the receiver body (32). A desiccant system (124) and/or filter (138) may be optionally installed into the receiver (24) prior to brazing.

Abstract: An insert is provided for use in a refrigerant receiver of a vehicular air conditioning system. The receiver has an interior that receives the insert and a charge of desiccant. The receiver is connected to a header of a condenser by a refrigerant inlet to the interior from the header and a refrigerant outlet from the interior to the header. The insert includes a wall having a first and second oppositely facing sides. The first side lies closer to the inlet than the second side with the insert received in the interior of the receiver. A first portion of the wall is aligned with the inlet, and at least the first portion is substantially impervious to the refrigerant flow from the inlet to shield the desiccant charge from direct impingement by refrigerant flow from the inlet. In one embodiment, the second side cooperates with a surface of the interior to define a receptacle for the desiccant. In another embodiment, the second side defines a receptacle surrounding the desiccant.

Abstract: This invention relates generally to desiccant cartridges for use in R/Ds or accumulators canisters of automotive air conditioning systems. More specifically, this invention relates to a desiccant cartridge including a cup having inner and outer walls coaxially disposed wherein the inner wall defines an elongated center tube having opposing first and second ends. The first end of the center tube communicating with the outlet port in an R/D or accumulator canister to eliminate the fluid flow tube used therein.

Abstract: A refrigerant filter/dryer assembly isolates, removes, and replaces a filter/dryer core, and allows the vapor-compression heat pump system to continue to operate while the filter/dryer is being replaced. The refrigerant flow is automatically by-passed and the filter/dryer core is isolated for removal. The filter/dryer easily connects back into the refrigerant flow path. An indicator can be provided for indicating the remaining useful life of the filter/dryer while it is being used in the system.

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: A receiver dryer mounting bracket (38) for a condenser system (20) includes a body (76) and an arm (78) coupled to and extending from the body (76). The body (76) has an opening (90) and seat sections (92, 94) positioned at opposing ends of a length of the opening (90). Flanges (71, 73) on inlet and outlet pipes (34, 36) of the condenser system (20) are seated in the seat sections (92, 94). An arcuate crimp section (102) of the body (76) is compressed to secure the inlet and outlet pipes (34, 36) in respective ones of the seat sections (92, 94) to form a pipe assembly (30). The pipe assembly (30) is coupled to a header (26) of the condenser system (20) prior to furnace brazing, and a receiver dryer (32) is subsequently mounted to the bracket (38).

Abstract: A dryer for a refrigerant circuit of a refrigerator includes a housing with a first and a second passage orifice. The cross-section of the first passage orifice includes a circular main portion, which is provided for receiving an evacuating line, and a lateral bulge, which is provided for receiving a capillary tube. A method for mounting the dryer is also provided.

Abstract: An improvement in a refrigeration circuit comprising a hermetic chamber (10), which is maintained in fluid communication with the refrigeration circuit, immediately downstream at least one of the parts defined by a condenser (5) and by a hermetic compressor (1), and which is dimensioned to store, in conditions of long stops of the hermetic compressor (1) and of a start thereof, a substantial volume of refrigerant fluid, said hermetic chamber (10) returning to the refrigeration circuit substantially all the refrigerant fluid stored therein, after said conditions have ended.

Abstract: In a receiver-drier including a cylindrical body and a lower cap sealing a lower end portion of the body, the body includes a filter support portion sectioning the body into upper and lower portions and having at least one inwardly protruding portion supporting an upper end portion of the filter accommodated in the lower portion of the body, at least one refrigerant inlet formed in the upper portion of the body, a coupling portion formed by inwardly pressing the body between the filter support portion and the lower end portion of the body so that an inner surface of the pressed body is coupled to the lower cap, and at least one refrigerant outlet disposed between the filter support portion and the coupling portion.

Abstract: The present invention is intended to remove foreign matter such as worn powder in a refrigerating cycle and enhance the reliability in a refrigerating cycle using, in particular, HFC refrigerant. In the invention, accordingly, a coil shaped connection piping is provided in at least front portion or rear portion of a throttling unit, a fine pipe is connected to a lower portion of the connection piping, and a collector for collecting foreign matter in the refrigerating cycle is coupled to this fine pipe. Foreign matter in the refrigerant is separated from the refrigerant by centrifugal force, and is collected in the collector. Moreover, the foreign matter collecting effect is enhanced by disposing a magnetic piece in the collector.