EP1522804B1 - Device for the reception of desiccant in a condenser and condenser - Google Patents

Device for the reception of desiccant in a condenser and condenser Download PDF

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Publication number
EP1522804B1
EP1522804B1 EP04016924A EP04016924A EP1522804B1 EP 1522804 B1 EP1522804 B1 EP 1522804B1 EP 04016924 A EP04016924 A EP 04016924A EP 04016924 A EP04016924 A EP 04016924A EP 1522804 B1 EP1522804 B1 EP 1522804B1
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EP
European Patent Office
Prior art keywords
holding device
wall
seal
connecting line
collector
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Expired - Fee Related
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EP04016924A
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German (de)
French (fr)
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EP1522804A1 (en
Inventor
Norbert Dipl.-Ing. Operschall
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Modine Manufacturing Co
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Modine Manufacturing Co
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003—Filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0441—Condensers with an integrated receiver containing a drier or a filter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/16—Receivers
    • F25B2400/162—Receivers characterised by the plug or stop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/02—Subcoolers

Definitions

  • the invention relates to a condenser with a receiver for the desiccant of the refrigerant in an air conditioning system for motor vehicles, which has at least one perforated wall and can be inserted in a collector arranged on the collector of the condenser, wherein the collector via inlet and outlet openings in its wall with the Collecting tube is connected.
  • a recording device is from the earlier European patent application EP 03 004 717.9 known, which originates from the same applicant.
  • the known receiving device has been designed for use in the manifold of such capacitors, in which the refrigerant flows through the condenser in several floods in the opposite direction.
  • the floods form zones or stages that are often referred to as condensation zones or subcooling zones, depending on the purpose.
  • condensation zones or subcooling zones depending on the purpose.
  • the known receiving device can not be used if the arrangement of the zones, or the fürströmungsweg of the capacitor must be changed for certain reasons.
  • the DE 101 00 423 A1 shows a condenser, which is also flowed through in several stages. Between the collector and the manifold is a connecting line to convey the refrigerant from a lower portion of the condenser up into the collector. The refrigerant then flows through the dryer and leaves the condenser. An insertion or replacement of the dryer located in a bag or the like serving receiving device is not present, since the collector itself serves as a recording device.
  • a dryer is arranged in a conventional container below a plug of the collector and a filter. Further, a connection line is provided which extends within the container to transport the refrigerant into an overhead subcooling path.
  • the object of the invention is to propose a capacitor having a receiving device, which allows to form the capacitor in a cost effective manner with a modified flow path.
  • At least one connecting line is provided in or on the receiving device in order to lead the refrigerant from one stage to another stage, it can be used in capacitors which have, for example, an overhead subcooling zone.
  • the proposal is extremely cost-effective to implement, since the construction of the capacitor, apart from the insertion of the partitions in the manifolds of the condenser and the attachment of the corresponding inlet and outlet openings, incidentally, no change effort is incurred.
  • the collector itself only has to be adapted to the desired position of the inlet and outlet openings.
  • the receiving device has a second seal, which is arranged at a distance from the first seal, wherein the connecting line bridges the distance between the seals.
  • the first and the second seal each comprise a wall, on the periphery of which the seal is provided opposite the wall of the collector.
  • the wall of one seal is approximately parallel with the wall of the other seal.
  • the refrigerant flows within the connecting line preferably in the opposite direction to the flow direction in the receiving device or outside the connecting line.
  • the connecting line is a riser, whereby the transfer of the refrigerant is achieved in an overhead stage.
  • the connecting line can also be a downpipe, if you want to direct the refrigerant from an upper stage to a lower stage.
  • the desiccant is disposed in the space between the two gasketed walls of the receiver and the wall of the collector.
  • the connecting line is preferably arranged between the perforated wall of the receiving device and the desiccant.
  • the walls provided with the seals each have an opening through which a tube is passed as a connecting line, wherein the cross sections of the openings and the connecting line are adapted accordingly
  • the one end of the connecting line preferably extends beyond the associated sealing wall and the other end terminates approximately with the associated sealing wall.
  • the connecting line is integrated as a further alternative in the receiving device.
  • the receiving device can be a device made of plastic in which the connecting line is permanently integrated.
  • the one seal and the filter basket are designed as a common item to be detachably connected to the receiving device.
  • the capacitor according to the invention is characterized in that a receiving device is provided in its collector, the includes at least one connecting line to direct the refrigerant from one stage to another stage.
  • the Fig. 1 - 4th show different views of a cradle.
  • the Fig. 5 shows a section of a capacitor in the collector, the recording device is located.
  • the Fig. 1 - 4th show an embodiment of the receiving device 1 , which is inserted into a collector 4, which is arranged on one of the two manifolds 2 of the condenser of the air conditioning system of a motor vehicle. It is essential that the collector 4 is in flow communication with the manifold 2 , so that it can be flowed through by the refrigerant. From the Fig. 5 It can be seen that the refrigerant is connected via an inflow opening 9 and an outflow opening 8 to the manifold 2 . Of course, a plurality of openings 8, 9 to be available. Of minor importance, however, in the present context, whether the manifold 2 and the collector 4 is integrally formed or composed of two tubes, as shown in the Fig. 5 will be shown.
  • the receiving device 1 has two seals 20a and 20b .
  • the seals each have a sealing wall 21 , wherein the actual seal to the wall 12 of the collector 4 at the periphery of the sealing wall 21 is present.
  • a space 13 which can be filled at least in part by a desiccant.
  • an opening 22 is provided, both of which are arranged on a common vertical, so that a straight in the exemplary embodiment connecting tube 10 may extend between the openings 22 .
  • the connecting line 10 goes on one side well beyond the sealing wall 21 addition, and it closes on the other side with the local sealing walls 21 from about. This is due only to the specific use case and should not seem material.
  • the condenser a plurality of stages 60, 50 are provided.
  • the overhead stage 60 is a subcooling stage.
  • the outlet, not shown, of the refrigerant is therefore located on the other side of the condenser, also not shown, on the second collecting pipe 2 there .
  • Below the step 60 are one or more stages 50 , which have not been drawn in detail.
  • Such a thing belongs to the prior art, wherein the formation of the steps 60, 50 is most easily realized by the appropriate arrangement of partitions 40 in the headers 2 . In the illustrated manifold 2 , only two of said partitions 40 have been drawn.
  • the flow arrows 70 indicate the flow directions of the refrigerant in the condenser and through its collector 4 .
  • Each stage 50, 60 consists of a plurality of flat tubes 15 , in which the refrigerant flows.
  • Wells (not shown) are located between the flat tubes 15 , as is known, through which cooling air flows.
  • the refrigerant flows through the inflow opening 9 into the collector 4 . Since the way up is blocked by means of the seal 20 b, the refrigerant spreads down and comes into contact with a desiccant, which is located in the space 13 . As the Fig. 2 and 4 show, it is at the wall of the recording device 1 to a perforated wall 7 . There are several breakthroughs 11 have been drawn in this wall 7, so that therefore the already mentioned contact of the refrigerant is realized with the desiccant.
  • the second seal 20a are a number of flow openings 31 through which the refrigerant can flow into and through a filter basket 30 , after which it is, accordingly cleaned of undesirable components, below the seal 20a , from where it flows through the connecting pipe 10, which in the embodiment shown is a riser, flows upwards and above the other seal 20b via the outlet opening 8 enters the subcooling zone 60 of the capacitor.
  • the refrigerant may leave the condenser on the other side not shown, or on the second manifold, not shown.
  • the filter basket 30 with the seal 20a form a unit detachably connected to the receiving device.
  • the connecting tube 10 has been integrated in the receiving device.
  • connection 22 In the lower sealing wall 21 is an opening 22 through which, in the assembly of the filter basket 30 with the seal 20 a on the receiving device, the end of the connecting line 10 is inserted therethrough.
  • reference numeral 29 indicates the aforementioned releasable connection.
  • a connecting line 10 could be pushed as an individual part through openings 22 in the two sealing walls 21 .
  • connection lines 10 may be according to not shown other embodiments, also a line with which the refrigerant is passed from an upper stage to an underlying or in the lowest stage of the capacitor.
  • Such connection lines 10 are then referred to as "downpipe" - only to clarify the difference with the riser pipe shown.
  • a plurality of connecting lines 10 are provided in conjunction with a plurality of seals 20 to correspond to other desired flow paths of the capacitor in a cost effective manner.

Description

Die Erfindung betrifft einen Kondensator mit einer Aufnahmevorrichtung für das Trocknungsmittel des Kältemittels in einer Klimaanlage für Kraftfahrzeuge, die wenigstens eine durchlöcherte Wand aufweist und in einem am Sammelrohr des Kondensators angeordneten Sammler einsetzbar ist, wobei der Sammler über Ein - und Ausströmöffnungen in seiner Wandung mit dem Sammelrohr verbunden ist.The invention relates to a condenser with a receiver for the desiccant of the refrigerant in an air conditioning system for motor vehicles, which has at least one perforated wall and can be inserted in a collector arranged on the collector of the condenser, wherein the collector via inlet and outlet openings in its wall with the Collecting tube is connected.

Eine Aufnahmevorrichtung ist aus der älteren europäischen Patentanmeldung EP 03 004 717.9 bekannt, die von derselben Anmelderin stammt.A recording device is from the earlier European patent application EP 03 004 717.9 known, which originates from the same applicant.

Die bekannte Aufnahmevorrichtung ist zum Einsatz in das Sammelrohr solcher Kondensatoren konzipiert worden, in denen das Kältemittel den Kondensator in mehreren Fluten in entgegengesetzter Richtung durchströmt. Die Fluten bilden Zonen oder Stufen, die häufig, je nach Zweckbestimmung, als Kondensationszonen oder Unterkühlungszonen bezeichnet werden. Bei dem bekannten Kondensator liegen oberhalb eine oder mehrere Kondensationszonen und unten eine Unterkühlungszone. Die bekannte Aufnahmevorrichtung kann nicht eingesetzt werden, wenn die Anordnung der Zonen, bzw. der Durchströmungsweg des Kondensators, aus bestimmten Gründen geändert werden muss.The known receiving device has been designed for use in the manifold of such capacitors, in which the refrigerant flows through the condenser in several floods in the opposite direction. The floods form zones or stages that are often referred to as condensation zones or subcooling zones, depending on the purpose. In the known condenser are above one or more condensation zones and below a subcooling zone. The known receiving device can not be used if the arrangement of the zones, or the Durchströmungsweg of the capacitor must be changed for certain reasons.

Ein mit anderen, verschiedenen Durchströmungswegen ausgebildeter Kondensator ist beispielsweise aus der US 5 228 315 bekannt. Um die dort gezeigten Durchströmungswege zu realisieren, wurde die Konstruktion des einen Sammelrohres mit dem zugehörigen und damit einstückigen Sammler mit mehreren Kanälen ausgestattet, was einen wesentlichen, d. h. sehr aufwendigen Änderungsumfang des gesamten Kondensators zur Folge hat, falls ein anderer Durchströmungsweg gewünscht wird.A trained with other, different flow paths condenser is for example from the US 5,228,315 known. In order to realize the Durchströmungswege shown there, the construction of a manifold with the associated and thus one-piece collector has been equipped with multiple channels, which has a significant, ie very complex change scope of the entire condenser result, if another flow path is desired.

Ähnlich verhält es sich bei dem aus der DE 198 30 329 A1 bekannten Kondensator. Dort wurden das Sammelrohr und der Sammler mit einer über die Länge ihrer Verbindung reichenden Sicke ausgebildet, die eine Verbindungsleitung für das Kältemittel zur Verfügung stellt.The situation is similar with that of the DE 198 30 329 A1 known capacitor. There, the manifold and the collector were formed with a reaching over the length of their connection bead, which provides a connecting line for the refrigerant.

Die DE 101 00 423 A1 zeigt einen Kondensator, der ebenfalls in mehreren Stufen durchströmt wird. Zwischen dem Sammler und dem Sammelrohr befindet sich eine Verbindungsleitung, um das Kältemittel aus einem unteren Bereich des Kondensators nach oben in den Sammler zu fördern. Das Kältemittel durchströmt dann den Trockner und verlässt den Kondensator. Eine dem Einsetzen bzw. Auswechseln des in einem Säckchen oder dergleichen befindlichen Trockners dienende Aufnahmevorrichtung ist nicht vorhanden, da der Sammler selbst als Aufnahmevorrichtung dient.The DE 101 00 423 A1 shows a condenser, which is also flowed through in several stages. Between the collector and the manifold is a connecting line to convey the refrigerant from a lower portion of the condenser up into the collector. The refrigerant then flows through the dryer and leaves the condenser. An insertion or replacement of the dryer located in a bag or the like serving receiving device is not present, since the collector itself serves as a recording device.

In der DE 102 50 384 A1 wird ebenfalls keine in einen Sammler einsetzbare Aufnahmevorrichtung offenbart. Dort ist ein Trockner in einem üblichen Behältnis unterhalb eines Verschlussstopfens des Sammlers und eines Filters angeordnet. Ferner ist eine Verbindungsleitung vorhanden, die sich innerhalb des Behältnisses erstreckt, um das Kältemittel in eine oben liegende Unterkühlstrecke zu transportieren.In the DE 102 50 384 A1 is also disclosed no usable in a collector recording device. There, a dryer is arranged in a conventional container below a plug of the collector and a filter. Further, a connection line is provided which extends within the container to transport the refrigerant into an overhead subcooling path.

Die Aufgabe der Erfindung besteht darin, einen Kondensator, der eine Aufnahmevorrichtung aufweist vorzuschlagen, die es gestattet, den Kondensator in kostengünstiger Art und Weise mit einem veränderten Durchströmungsweg auszubilden.The object of the invention is to propose a capacitor having a receiving device, which allows to form the capacitor in a cost effective manner with a modified flow path.

Diese Aufgabe wird erfindungsgemäß mit den gesamten Merkmalen aus dem Anspruch 1 gelöst. Weil in oder an der Aufnahmevorrichtung wenigstens eine Verbindungsleitung vorgesehen ist, um das Kältemittel aus einer Stufe in eine andere Stufe zu leiten, kann sie bei Kondensatoren zum Einsatz kommen, die beispielsweise eine oben liegende Unterkühlungszone aufweisen.This object is achieved with the entire features of claim 1. Since at least one connecting line is provided in or on the receiving device in order to lead the refrigerant from one stage to another stage, it can be used in capacitors which have, for example, an overhead subcooling zone.

Der Vorschlag ist äußerst kostengünstig umsetzbar, da an der Konstruktion des Kondensators, abgesehen von dem Einfügen der Trennwände in die Sammelrohre des Kondensator und der Anbringung der entsprechenden Ein - und Ausströmöffnungen, im übrigen keinerlei Änderungsaufwand anfällt. Der Sammler selbst muss lediglich bezüglich der gewünschten Position der Ein - und Ausströmöffnungen angepasst werden.The proposal is extremely cost-effective to implement, since the construction of the capacitor, apart from the insertion of the partitions in the manifolds of the condenser and the attachment of the corresponding inlet and outlet openings, incidentally, no change effort is incurred. The collector itself only has to be adapted to the desired position of the inlet and outlet openings.

Die Aufnahmevorrichtung weist eine zweite Dichtung auf, die mit einem Abstand von der ersten Dichtung angeordnet ist, wobei die Verbindungsleitung den Abstand zwischen den Dichtungen überbrückt.The receiving device has a second seal, which is arranged at a distance from the first seal, wherein the connecting line bridges the distance between the seals.

Die erste und die zweite Dichtung umfasst jeweils eine Wand, an deren Peripherie die Abdichtung gegenüber der Wand des Sammlers vorgesehen ist.The first and the second seal each comprise a wall, on the periphery of which the seal is provided opposite the wall of the collector.

Die Wand der einen Dichtung ist etwa parallel mit der Wand der anderen Dichtung angeordnet.The wall of one seal is approximately parallel with the wall of the other seal.

Das Kältemittel strömt innerhalb der Verbindungsleitung vorzugsweise in entgegengesetzter Richtung zur Durchströmungsrichtung in der Aufnahmevorrichtung bzw. außerhalb des Verbindungsleitung.The refrigerant flows within the connecting line preferably in the opposite direction to the flow direction in the receiving device or outside the connecting line.

Die Verbindungsleitung ist eine Steigleitung, womit die Überführung des Kältemittels in eine oben liegende Stufe erreicht wird.The connecting line is a riser, whereby the transfer of the refrigerant is achieved in an overhead stage.

Alternativ kann es sich bei der Verbindungsleitung aber auch um eine Fallleitung handeln, wenn man das Kältemittel aus einer oberen Stufe in eine untere Stufe leiten möchte.Alternatively, the connecting line can also be a downpipe, if you want to direct the refrigerant from an upper stage to a lower stage.

Das Trocknungsmittel ist in dem Raum zwischen den beiden mit den Dichtungen versehenen Wänden der Aufnahmevorrichtung und der Wandung des Sammlers angeordnet.The desiccant is disposed in the space between the two gasketed walls of the receiver and the wall of the collector.

Die Verbindungsleitung ist vorzugsweise zwischen der durchlöcherten Wand der Aufnahmevorrichtung und dem Trocknungsmittel angeordnet.The connecting line is preferably arranged between the perforated wall of the receiving device and the desiccant.

Die mit den Dichtungen versehenen Wände weisen jeweils eine Öffnung auf, durch die ein Rohr als Verbindungsleitung hindurchgeführt ist, wobei die Querschnitte der Öffnungen und der Verbindungsleitung entsprechend angepaßt sindThe walls provided with the seals each have an opening through which a tube is passed as a connecting line, wherein the cross sections of the openings and the connecting line are adapted accordingly

Das eine Ende der Verbindungsleitung geht vorzugsweise über die zugeordnete Dichtungswand hinaus und das andere Ende schließt mit der zugeordneten Dichtungswand etwa ab.The one end of the connecting line preferably extends beyond the associated sealing wall and the other end terminates approximately with the associated sealing wall.

Die Verbindungsleitung ist - als eine weitere Alternative - in der Aufnahmevorrichtung integriert. Damit ist gesagt, dass es sich bei der Aufnahmevorrichtung um eine einheitlich aus Kunststoff hergestellte Vorrichtung handeln kann, in der die Verbindungsleitung unlösbar integriert ist. In einem solchen Fall hat es sich als vorteilhaft erwiesen, dass die eine Dichtung und der Filterkorb als ein gemeinsames Einzelteil ausgebildet sind, das lösbar mit der Aufnahmevorrichtung zu verbinden ist Der erfindungsgemäße Kondensator ist dadurch gekennzeichnet, dass in seinem Sammler eine Aufnahmevorrichtung vorgesehen ist, die wenigstens eine Verbindungsleitung enthält, um das Kältemittel aus einer Stufe in eine andere Stufe zu leiten.The connecting line is integrated as a further alternative in the receiving device. This means that the receiving device can be a device made of plastic in which the connecting line is permanently integrated. In such a case, it has proved to be advantageous that the one seal and the filter basket are designed as a common item to be detachably connected to the receiving device. The capacitor according to the invention is characterized in that a receiving device is provided in its collector, the includes at least one connecting line to direct the refrigerant from one stage to another stage.

Die Erfindung wird nachfolgend in Ausführungsbeispielen beschrieben.The invention will be described below in exemplary embodiments.

Die Fig. 1 - 4 zeigen verschiedene Ansichten einer Aufnahmevorrichtung.The Fig. 1 - 4th show different views of a cradle.

Die Fig. 5 zeigt einen Ausschnitt aus einem Kondensator, in dessen Sammler sich die Aufnahmevorrichtung befindet.The Fig. 5 shows a section of a capacitor in the collector, the recording device is located.

Die Fig. 1 - 4 zeigen ein Ausführungsbeispiel der Aufnahmevorrichtung 1, die in einen Sammler 4 eingesetzt wird, der an einem der zwei Sammelrohre 2 des Kondensators der Klimaanlage eines Kraftfahrzeuges angeordnet ist. Wesentlich ist, dass der Sammler 4 mit dem Sammelrohr 2 in Strömungsverbindung steht, so dass er von dem Kältemittel durchströmt werden kann. Aus der Fig. 5 ist zu sehen, dass das Kältemittel über eine Einströmöffnung 9 und eine Ausströmöffnung 8 mit dem Sammelrohr 2 verbunden ist. Selbstverständlich können mehrere Öffnungen 8, 9 vorhanden sein. Von eher untergeordneter Bedeutung hingegen ist im vorliegenden Zusammenhang, ob das Sammelrohr 2 und der Sammler 4 einstückig ausgebildet oder aus zwei Rohren zusammengesetzt ist, wie es in der Fig. 5 gezeigt wird.The Fig. 1 - 4th show an embodiment of the receiving device 1 , which is inserted into a collector 4, which is arranged on one of the two manifolds 2 of the condenser of the air conditioning system of a motor vehicle. It is essential that the collector 4 is in flow communication with the manifold 2 , so that it can be flowed through by the refrigerant. From the Fig. 5 It can be seen that the refrigerant is connected via an inflow opening 9 and an outflow opening 8 to the manifold 2 . Of course, a plurality of openings 8, 9 to be available. Of minor importance, however, in the present context, whether the manifold 2 and the collector 4 is integrally formed or composed of two tubes, as shown in the Fig. 5 will be shown.

Die Aufnahmevorrichtung 1 besitzt zwei Dichtungen 20a und 20b. Die Dichtungen besitzen je eine Dichtungswand 21, wobei die eigentliche Abdichtung zur Wand 12 des Sammlers 4 an der Peripherie des Dichtungswand 21 vorhanden ist. Etwa zwischen den beiden Dichtungswänden 21 befindet sich ein Raum 13, der wenigstens zum Teil durch ein Trocknungsmittel ausgefüllt werden kann. In den Dichtungswänden 21 ist je ein Durchbruch 22 vorhanden, die beide auf einer gemeinsamen Vertikalen angeordnet sind, so dass ein im Ausführungsbeispiel gerades Verbindungsrohr 10 sich zwischen den Durchbrüchen 22 erstrecken kann. In dem in den Fig. 1 - 5 gezeigten Fall geht die Verbindungsleitung 10 auf einer Seite deutlich über die Dichtungswand 21 hinaus, und sie schließt auf der anderen Seite mit der dortigen Dichtungswänd 21 etwa ab. Dies ist lediglich dem speziellen Anwendungsfall geschuldet und sollte nicht als wesentlich erscheinen.The receiving device 1 has two seals 20a and 20b . The seals each have a sealing wall 21 , wherein the actual seal to the wall 12 of the collector 4 at the periphery of the sealing wall 21 is present. Approximately between the two sealing walls 21 is a space 13 which can be filled at least in part by a desiccant. In the sealing walls 21 , an opening 22 is provided, both of which are arranged on a common vertical, so that a straight in the exemplary embodiment connecting tube 10 may extend between the openings 22 . In the in the Fig. 1-5 As shown, the connecting line 10 goes on one side well beyond the sealing wall 21 addition, and it closes on the other side with the local sealing walls 21 from about. This is due only to the specific use case and should not seem material.

In dem Kondensator sind mehrere Stufen 60, 50 vorgesehen. Im Ausführungsbeispiel ist die oben liegende Stufe 60 eine Unterkühlungsstufe. Der nicht gezeigte Auslass des Kältemittels befindet sich demzufolge auf der ebenfalls nicht gezeigten anderen Seite des Kondensators, am dortigen zweiten Sammelrohr 2. Unterhalb der Stufe 60 befinden sich eine oder mehrere Stufen 50, die im Einzelnen nicht eingezeichnet worden sind. So etwas gehört zum Stand der Technik, wobei die Ausbildung der Stufen 60, 50 am einfachsten durch die zweckmäßige Anordnung von Trennwänden 40 in den Sammelrohren 2 realisiert wird. In dem gezeigten Sammelrohr 2 wurden lediglich zwei der genannten Trennwände 40 eingezeichnet. Die Strömungspfeile 70 zeigen die Strömungsrichtungen des Kältemittels im Kondensator und durch seinen Sammler 4 hindurch an. In benachbarten Stufen 60, 50 ist eine entgegengesetzte Strömungsrichtung vorhanden. Jede Stufe 50, 60 besteht aus mehreren Flachrohren 15, in denen das Kältemittel strömt. Zwischen den Flachrohren 15 befinden sich bekanntermaßen Wellrippen (nicht gezeigt), durch die Kühlluft hindurch strömt. Das Kältemittel strömt durch die Einströmöffnung 9 in den Sammler 4 hinein. Da der Weg nach oben mittels der Dichtung 20b versperrt ist, breitet sich das Kältemittel nach unten aus und kommt dabei in Kontakt mit einem Trocknungsmittel, das sich im Raum 13 befindet. Wie die Fig. 2 und 4 zeigen, handelt es sich bei der Wand der Aufnahmevorrichtung 1 um eine durchlöcherte Wand 7. Es sind mehrere Durchbrüche 11 in dieser Wand 7 eingezeichnet worden, so dass also der bereits erwähnte Kontakt des Kältemittels mit dem Trocknungsmittel realisiert ist. Oberhalb der zweiten Dichtung 20a befinden sich etliche Strömungsöffnungen 31 durch die hindurch das Kältemittel in und durch einen Filterkorb 30 strömen kann, wonach es sich, entsprechend von unerwünschten Bestandteilen gereinigt, unterhalb der Dichtung 20a befindet, von wo es durch das Verbindungsrohr 10, das im gezeigten Ausführungsbeispiel ein Steigrohr ist, nach oben strömt und oberhalb der anderen Dichtung 20b über die Austrittsöffnung 8 in die Unterkühlungszone 60 des Kondensators eintritt. Das Kältemittel kann den Kondensator auf der nicht gezeigten anderen Seite, bzw. am nicht gezeigten zweiten Sammelrohr verlassen. Im gezeigten Ausführungsbeispiel bilden der Filterkorb 30 mit der Dichtung 20a eine lösbar mit der Aufnahmevorrichtung verbundene Einheit. Das Verbindungsrohr 10 ist in der Aufnahmevorrichtung integriert worden. In der unteren Dichtungswand 21 befindet sich eine Öffnung 22, durch die, bei der Montage des Filterkorbes 30 mit der Dichtung 20a an der Aufnahmevorrichtung, das Ende der Verbindungsleitung 10 hindurch gesteckt wird. In der Fig. 2 zeigt das Bezugszeichen 29 die erwähnte lösbare Verbindung an. Im Gegensatz dazu, könnte auch eine Verbindungsleitung 10 als Einzelteil durch Durchbrüche 22 in beiden Dichtungswänden 21 geschoben werden.In the condenser a plurality of stages 60, 50 are provided. In the embodiment, the overhead stage 60 is a subcooling stage. The outlet, not shown, of the refrigerant is therefore located on the other side of the condenser, also not shown, on the second collecting pipe 2 there . Below the step 60 are one or more stages 50 , which have not been drawn in detail. Such a thing belongs to the prior art, wherein the formation of the steps 60, 50 is most easily realized by the appropriate arrangement of partitions 40 in the headers 2 . In the illustrated manifold 2 , only two of said partitions 40 have been drawn. The flow arrows 70 indicate the flow directions of the refrigerant in the condenser and through its collector 4 . In adjacent stages 60, 50 an opposite flow direction is present. Each stage 50, 60 consists of a plurality of flat tubes 15 , in which the refrigerant flows. Wells (not shown) are located between the flat tubes 15 , as is known, through which cooling air flows. The refrigerant flows through the inflow opening 9 into the collector 4 . Since the way up is blocked by means of the seal 20 b, the refrigerant spreads down and comes into contact with a desiccant, which is located in the space 13 . As the Fig. 2 and 4 show, it is at the wall of the recording device 1 to a perforated wall 7 . There are several breakthroughs 11 have been drawn in this wall 7, so that therefore the already mentioned contact of the refrigerant is realized with the desiccant. Above the second seal 20a are a number of flow openings 31 through which the refrigerant can flow into and through a filter basket 30 , after which it is, accordingly cleaned of undesirable components, below the seal 20a , from where it flows through the connecting pipe 10, which in the embodiment shown is a riser, flows upwards and above the other seal 20b via the outlet opening 8 enters the subcooling zone 60 of the capacitor. The refrigerant may leave the condenser on the other side not shown, or on the second manifold, not shown. In the exemplary embodiment shown, the filter basket 30 with the seal 20a form a unit detachably connected to the receiving device. The connecting tube 10 has been integrated in the receiving device. In the lower sealing wall 21 is an opening 22 through which, in the assembly of the filter basket 30 with the seal 20 a on the receiving device, the end of the connecting line 10 is inserted therethrough. In the Fig. 2 reference numeral 29 indicates the aforementioned releasable connection. In contrast, a connecting line 10 could be pushed as an individual part through openings 22 in the two sealing walls 21 .

Bei der Verbindungsleitung 10 kann es sich gemäß nicht gezeigten anderen Ausführungsbeispielen, auch um eine Leitung handeln, mit der das Kältemittel aus einer oberen Stufe in eine darunter angeordnete oder in die unterste Stufe des Kondensators geleitet wird. Solche Verbindungsleitungen 10 werden dann als "Fallrohr" bezeichnet - nur um damit den Unterschied zum gezeigten Steigrohr zu verdeutlichen.In the connecting line 10 may be according to not shown other embodiments, also a line with which the refrigerant is passed from an upper stage to an underlying or in the lowest stage of the capacitor. Such connection lines 10 are then referred to as "downpipe" - only to clarify the difference with the riser pipe shown.

Ferner gibt es weitere nicht gezeigte Ausführungen, in denen, unter Ausnutzung des erfinderischen Grundgedankens, mehrere Verbindungsleitungen 10 in Verbindung mit mehreren Dichtungen 20 vorgesehen sind, um anderen gewünschten Durchströmungswegen des Kondensators auf kostengünstiger Art und Weise zu entsprechen.Furthermore, there are other embodiments not shown, in which, taking advantage of the inventive concept, a plurality of connecting lines 10 are provided in conjunction with a plurality of seals 20 to correspond to other desired flow paths of the capacitor in a cost effective manner.

Claims (13)

  1. Condenser having a holding device (1) for the desiccant (34) for the refrigerant in an air-conditioning system for motor vehicles, which holding device has a perforated wall (7) and can be inserted into a collector (4) arranged in one of the header tubes (2) of the condenser (3), wherein tubes (15) of the condenser can be traversed by a flow of the coolant in multiple stages, wherein the holding device is provided with a first and, spaced apart therefrom, a second seal (20a, 20b) for providing sealing with respect to the wall (12) of the collector, wherein the collector (4) is flow-connected via inflow and outflow openings (8, 9) in its wall (12) to the header tube (2),
    wherein in or on the holding device (1) there is provided at least one connecting line (10) for conducting the refrigerant from one stage into another stage, and wherein the connecting line (10) bridges the spacing between the seals (20a, 20b).
  2. Holding device according to Claim 1, characterized in that the flow direction of the refrigerant in the connecting line (10) opposes the flow direction outside the connecting line (10).
  3. Holding device according to Claim 1 and 2, characterized in that the first and the second seal (20a, 20b) comprises in each case one seal wall (21), at the periphery of which the sealing with respect to the wall (12) of the collector takes place.
  4. Holding device according to Claim 3, characterized in that the wall (21) of one seal (20a) is arranged approximately parallel to the wall (21) of the other seal (20b).
  5. Holding device according to one of the preceding claims, characterized in that the connecting device (10) is an ascending line.
  6. Holding device according to one of the preceding Claims 1-4, characterized in that the connecting line is a descending line.
  7. Holding device according to the preceding claims, characterized in that the desiccant is arranged in a space (13) between the two seal walls (21) and the wall (12) of the collector (4).
  8. Holding device according to the preceding claims, characterized in that the connecting line (10) is arranged preferably between the perforated wall (7) and the desiccant.
  9. Holding device according to the preceding claims, characterized in that the two seal walls (21) have in each case one orifice (22) or one cutout through which is guided a tube, for example a flat or oval tube, as a connecting line (10).
  10. Holding device according to the preceding claims, characterized in that one end of the connecting line (10) preferably extends beyond the associated seal wall (21) and the other end terminates approximately in line with the associated seal wall (21).
  11. Holding device according to Claim 1, characterized in that the connecting line (10) is integrated in the holding device.
  12. Holding device according to Claim 1, characterized in that the holding device (1) is fastened with one end to a closure cover (25) of the collector (4).
  13. Holding device according to Claim 1, characterized in that the holding device (1) has a filter cage (30) which is arranged adjacent to one seal wall (21), wherein said seal wall (21) and the filter cage (30) are detachably connected to the holding device.
EP04016924A 2003-10-02 2004-07-17 Device for the reception of desiccant in a condenser and condenser Expired - Fee Related EP1522804B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10345921 2003-10-02
DE10345921A DE10345921A1 (en) 2003-10-02 2003-10-02 Condenser and receiver for desiccant

Publications (2)

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EP1522804A1 EP1522804A1 (en) 2005-04-13
EP1522804B1 true EP1522804B1 (en) 2012-07-04

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DE (1) DE10345921A1 (en)

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US20050072184A1 (en) 2005-04-07
US7165417B2 (en) 2007-01-23
DE10345921A1 (en) 2005-05-12
EP1522804A1 (en) 2005-04-13

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