EP1703233B1 - Condenser for an air conditioning system, particularly for a motor vehicule - Google Patents

Condenser for an air conditioning system, particularly for a motor vehicule Download PDF

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Publication number
EP1703233B1
EP1703233B1 EP06000594.9A EP06000594A EP1703233B1 EP 1703233 B1 EP1703233 B1 EP 1703233B1 EP 06000594 A EP06000594 A EP 06000594A EP 1703233 B1 EP1703233 B1 EP 1703233B1
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EP
European Patent Office
Prior art keywords
collector
refrigerant
dryer
section
condenser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP06000594.9A
Other languages
German (de)
French (fr)
Other versions
EP1703233A3 (en
EP1703233A2 (en
Inventor
Georg Dipl.-Ing. Feldhaus
Uwe Dipl.-Ing. Förster
Martin Dipl.-Ing. Kaspar
Kurt Dipl.-Ing. Molt
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Mahle Behr GmbH and Co KG
Original Assignee
Mahle Behr GmbH and Co KG
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Publication date
Application filed by Mahle Behr GmbH and Co KG filed Critical Mahle Behr GmbH and Co KG
Priority to EP11165641.9A priority Critical patent/EP2378225B1/en
Publication of EP1703233A2 publication Critical patent/EP1703233A2/en
Publication of EP1703233A3 publication Critical patent/EP1703233A3/en
Application granted granted Critical
Publication of EP1703233B1 publication Critical patent/EP1703233B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
    • 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
    • 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/02—Subcoolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/007—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0084—Condensers

Definitions

  • the invention relates to a condenser for an air conditioner according to the preamble of claim 1 - known by the WO 2004/099 687 ,
  • Condensers for motor vehicle air conditioning systems are usually flowed through from top to bottom in a plurality of channels, with a subcooling section in the lower region of the condenser in which the refrigerant is cooled below the condensation temperature.
  • Such cross-flow capacitors which also have a built-in collector with dryer, have been characterized by the DE 103 06 192 A1 .
  • DE 103 38 526 A1 and the DE 198 48 744 A1 the applicant known.
  • this type is less advantageous with underlying subcooling, namely, when the condenser in the lower end face area another heat exchanger, eg. B. an intercooler is connected upstream.
  • the subcooling portion of the condenser is not sufficiently cooled. It has therefore already been proposed capacitors with overhead subcooling, as by the DE 198 30 329 A1 and the DE 199 12 381 A1 the applicant known.
  • the known cross-flow condenser to a lower condensation section, which is flowed through from top to bottom, and an overhead supercooling section, which communicates with the lower region of the collector via a arranged in the collector or the manifold refrigerant pipe.
  • the known capacitor (Applicant) a bottom condensing section, which is flowed through from bottom to top, ie the refrigerant leaves the Kondensierabrough in the upper region and then enters a collector, which is a dryer-filter insert, which is penetrated by a riser, receives.
  • the dryer-filter insert is arranged in the lower area of the collector, while in the middle area of the collector is a space for receiving liquid and gaseous refrigerant.
  • a deflection space is arranged, from which liquid refrigerant passes through the riser and an upper chamber in the collector in the overhead subcooling.
  • the features of claim 1 there is provided in the region of the transfer opening of the refrigerant from the condensing section in the collector an inflow chamber, which is adjoined upwards by a plug and downwards by the dryer.
  • the refrigerant entering the inflow chamber thus distributes itself uniformly over the entire cross-section of the collector and then enters the dryer, through which the refrigerant inevitably flows from top to bottom.
  • the refrigerant is dried and filtered.
  • the dryer is thus in the middle to upper area of the collector, d. H. immediately below the transfer opening from the Kondensierabites. Thus, an effective drying of the refrigerant can be achieved.
  • a storage space for the refrigerant is provided below the dryer-filter insert, which not only the storage of refrigerant, but also the degassing of the refrigerant is used.
  • the riser pipe passing through the dryer-filter insert protrudes into the storage space with a lower end and is connected at its upper end to a stopper which causes a deflection of the refrigerant into the sub-cooling section.
  • the plug is inserted into the collector and peripherally sealed by an O-ring between the two transfer openings. This prevents refrigerant entering the collector from the condensing section from directly entering the subcooling section, ie, without being dried, filtered and degassed.
  • Fig. 1 shows a multi-flow permeable cross-flow condenser 1, which has a tube fin block 2, laterally arranged manifolds 3, 4 and an integrated collector 5.
  • the pointing in alternate directions arrows P1, P2, P3, P4, P5 and P6 represent the flow directions of the refrigerant in individual pipe groups of the pipe fin block 2, not shown, wherein the refrigerant enters via a lower nozzle 3a and 3b via an overhead nozzle exit.
  • the tube fin block 2 consists of a condensing section, which corresponds to the arrows P1 to P5, and a above the Kondensierabiteses arranged subcooling section, which is indicated by the arrow P6.
  • substantially liquid refrigerant flows, which is cooled by the ambient air, which acts on the condenser 1, below the condensation temperature of the refrigerant. Subsequently, the refrigerant leaves the condenser 1 via the connection 3b.
  • Fig. 2 shows the collector 5 with manifold 4 of the capacitor 1 in section in a 3-D representation of the manifold 4, only the two upper chambers 4a, 4b are shown, which with the last passage P5 of Kondensierabiteses of the capacitor or with the subcooling path P6 are connected.
  • the collector 5 consists - as known from the aforementioned prior art - from a cylindrical container, which is composed of a tube 5a and an extruded profile piece 5 b.
  • the collector 5 is undetachably closed at the bottom by a soldered-in bottom 6 and closed at the top by a detachable sealing plug 7.
  • the chamber 4a is connected via a first transfer opening 8 and the chamber 4b via a second transfer opening 9 with the interior of the collector 5 on the refrigerant side.
  • a filter drier 10 also called dryer-filter insert
  • a drier material a so-called molecular sieve and on its top and bottom, ie refrigerant inlet and refrigerant outlet side a sieve, z. B. in the form of a nonwoven (not shown) for filtering the refrigerant.
  • a plug 11 is arranged, which is peripherally sealed via an O-ring 12 in the region between the two transfer openings 8, 9 with respect to the interior of the profile piece 5b.
  • an inflow chamber 13 is formed in the region of the overflow opening 8.
  • a storage chamber 14 which serves to store liquid and / or gaseous refrigerant.
  • a riser 15 is arranged, which is passed through the filter dryer 10 through, down into the Before advisungsraum 14 dives or reaches to the bottom 6 and up to the stopper 11th extends, which connects the riser 15 via an opening 11 a with the chamber 4b and thus with the subcooling section P6. In the plug 11 thus takes place, not shown deflection of the refrigerant from the riser 15 into the chamber 4 b instead.
  • the riser 15 has in the region of the bottom 6 an opening 15 a, via soft refrigerant can enter the riser 15.
  • the function of the previously described collector 5 with filter-drier 10 is as follows:
  • the refrigerant emerging from the last passage P5 of the condensing section of the condenser 1 passes via the transfer opening 8 into the inflow chamber 13, where the refrigerant flows uniformly over the cross section of the collector 5 is distributed and thus reduced in its flow velocity.
  • the refrigerant flows (forcibly) through the filter dryer 10, through which it is filtered and dried.
  • the filter-drier 10 After exiting the filter-drier 10, the refrigerant enters the storage space 14, where its flow rate is further reduced. In this case, gaseous components of the refrigerant can be separated, which rise upwards and collect in the upper region of the storage space 14.
  • the refrigerant enters the riser 15 via the inlet opening 15a and flows through it from bottom to top, ie it passes through the filter drier 10 in the riser 15 and enters the plug 11, where it is deflected into the chamber 4b and enters from there into the subcooling section P6.
  • the collector 5 has a releasable sealing plug 7, the filter-dryer 10, the riser 15 and the plug 11 can be exchanged for maintenance purposes. This is particularly easy to handle when filter dryer 10, riser 15 and plug 11 are formed as a prefabricated contiguous unit.
  • the invention is not limited to filter dryers filled with granules of hygroscopic material. Possible within the scope of the invention are also compact dryers, which consist of a solid plastic mass with intercalated molecular sieve - as in DE 102 34 889 A1 the applicant described.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

Die Erfindung betrifft einen Kondensator für eine Klimaanlage nach dem Oberbegriff des Patentanspruches 1 - bekannt durch die WO 2004/099 687 .The invention relates to a condenser for an air conditioner according to the preamble of claim 1 - known by the WO 2004/099 687 ,

Kondensatoren für Klimaanlagen von Kraftfahrzeugen werden in der Regel mehrflutig von oben nach unten durchströmt, wobei sich im unteren Bereich des Kondensators ein Unterkühlabschnitt befindet, in welchem das Kältemittel unter die Kondensationstemperatur abgekühlt wird. Derartige Querstromkondensatoren, die auch einen integrierten Sammler mit Trockner aufweisen, wurden durch die DE 103 06 192 A1 , DE 103 38 526 A1 und die DE 198 48 744 A1 der Anmelderin bekannt. Bei bestimmten Einbausituationen im Fahrzeug ist diese Bauart mit unten liegender Unterkühlstrecke weniger vorteilhaft, nämlich dann, wenn dem Kondensator im unteren Stirnflächenbereich ein weiterer Wärmeübertrager, z. B. ein Ladeluftkühler vorgeschaltet ist. In diesem Falle wird der Unterkühlabschnitt des Kondensators nicht hinreichend gekühlt. Man hat daher bereits Kondensatoren mit oben liegender Unterkühlstrecke vorgeschlagen, wie durch die DE 198 30 329 A1 und die DE 199 12 381 A1 der Anmelderin bekannt. Im ersten Falle weist der bekannte Querstromkondensator einen unten liegenden Kondensationsabschnitt auf, der von oben nach unten durchströmt wird, sowie einen oben liegenden Unterkühlungsabschnitt, welcher über eine im Sammler bzw. im Sammelrohr angeordnete Kältemittelleitung mit dem unteren Bereich des Sammlers in Verbindung steht. Im zweiten Falle weist der bekannte Kondensator (der Anmelderin) einen unten liegenden Kondensierabschnitt auf, welcher von unten nach oben durchströmt wird, d. h. das Kältemittel verlässt den Kondensierabschnitt im oberen Bereich und tritt dann in einen Sammler über, welcher einen Trockner-Filter-Einsatz, der von einem Steigrohr durchsetzt wird, aufnimmt. Der Trockner-Filter-Einsatz ist im unteren Bereich des Sammlers angeordnet, während sich im mittleren Beeich des Sammlers ein Raum zur Aufnahme von flüssigem und gasförmigem Kältemittel befindet. Unterhalb des Trockners ist ein Umlenkraum angeordnet, von dem aus flüssiges Kältemittel über das Steigrohr und eine obere Kammer im Sammler in die oben liegende Unterkühlstrecke gelangt.Condensers for motor vehicle air conditioning systems are usually flowed through from top to bottom in a plurality of channels, with a subcooling section in the lower region of the condenser in which the refrigerant is cooled below the condensation temperature. Such cross-flow capacitors, which also have a built-in collector with dryer, have been characterized by the DE 103 06 192 A1 . DE 103 38 526 A1 and the DE 198 48 744 A1 the applicant known. In certain installation situations in the vehicle, this type is less advantageous with underlying subcooling, namely, when the condenser in the lower end face area another heat exchanger, eg. B. an intercooler is connected upstream. In this case, the subcooling portion of the condenser is not sufficiently cooled. It has therefore already been proposed capacitors with overhead subcooling, as by the DE 198 30 329 A1 and the DE 199 12 381 A1 the applicant known. In the first case, the known cross-flow condenser to a lower condensation section, which is flowed through from top to bottom, and an overhead supercooling section, which communicates with the lower region of the collector via a arranged in the collector or the manifold refrigerant pipe. In the second case, the known capacitor (Applicant) a bottom condensing section, which is flowed through from bottom to top, ie the refrigerant leaves the Kondensierabschnitt in the upper region and then enters a collector, which is a dryer-filter insert, which is penetrated by a riser, receives. The dryer-filter insert is arranged in the lower area of the collector, while in the middle area of the collector is a space for receiving liquid and gaseous refrigerant. Below the dryer, a deflection space is arranged, from which liquid refrigerant passes through the riser and an upper chamber in the collector in the overhead subcooling.

Es ist Aufgabe der vorliegenden Erfindung, einen Kondensator der eingangs genannten Art insbesondere hinsichtlich seines Sammlers, der Kältemittelführung und der Entgasung des Kältemittels zu verbessern.It is an object of the present invention to improve a capacitor of the type mentioned in particular with regard to its collector, the refrigerant guide and the degassing of the refrigerant.

Diese Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst. Erfindungsgemäß ist vorgesehen, dass sich im Bereich der Übertrittsöffnung des Kältemittels aus dem Kondensierabschnitt im Sammler eine Einströmkammer befindet, an welche nach oben ein Stopfen und nach unten der Trockner angrenzt. Das in die Einströmkammer eintretende Kältemittel verteilt sich somit gleichmäßig auf den gesamten Querschnitt des Sammlers und tritt dann in den Trockner ein, welchen das Kältemittel von oben nach unten zwangsläufig durchströmt. Dabei wird das Kältemittel getrocknet und gefiltert. Der Trockner befindet sich somit im mittleren bis oberen Bereich des Sammlers, d. h. unmittelbar unterhalb der Übertrittsöffnung aus dem Kondensierabschnitt. Damit kann eine wirksame Trocknung des Kältemittels erreicht werden.This object is solved by the features of claim 1. According to the invention, there is provided in the region of the transfer opening of the refrigerant from the condensing section in the collector an inflow chamber, which is adjoined upwards by a plug and downwards by the dryer. The refrigerant entering the inflow chamber thus distributes itself uniformly over the entire cross-section of the collector and then enters the dryer, through which the refrigerant inevitably flows from top to bottom. The refrigerant is dried and filtered. The dryer is thus in the middle to upper area of the collector, d. H. immediately below the transfer opening from the Kondensierabschnitt. Thus, an effective drying of the refrigerant can be achieved.

In weiterer Ausgestaltung der Erfindung ist unterhalb des Trockner-Filter-Einsatzes ein Bevorratungsraum für das Kältemittel vorgesehen, welcher nicht nur der Speicherung von Kältemittel, sondern auch der Entgasung des Kältemittels dient. Infolge der verzögerten Strömungsgeschwindigkeit des Kältemittels können sich Gasblasen aus der Flüssigkeit lösen und nach oben steigen.In a further embodiment of the invention, a storage space for the refrigerant is provided below the dryer-filter insert, which not only the storage of refrigerant, but also the degassing of the refrigerant is used. As a result of the delayed flow rate of the refrigerant gas bubbles can escape from the liquid and rise up.

In weiterer vorteilhafter Ausgestaltung der Erfindung ragt das den Trockner-Filter-Einsatz durchsetzende Steigrohr mit einem unteren Ende in den Bevorratungsraum und ist mit seinem oberen Ende mit einem Stopfen verbunden, welcher eine Umlenkung des Kältemittels in den Unterkühlabschnitt bewirkt. Der Stopfen ist in den Sammler eingesetzt und umfangseitig über einen O-Ring abgedichtet, und zwar zwischen den beiden Übertrittsöffnungen. Dadurch wird verhindert, dass aus dem Kondensierabschnitt in den Sammler eintretendes Kältemittel direkt in den Unterkühlabschnitt gelangt, d. h. ohne getrocknet, gefiltert und entgast zu werden.In a further advantageous embodiment of the invention, the riser pipe passing through the dryer-filter insert protrudes into the storage space with a lower end and is connected at its upper end to a stopper which causes a deflection of the refrigerant into the sub-cooling section. The plug is inserted into the collector and peripherally sealed by an O-ring between the two transfer openings. This prevents refrigerant entering the collector from the condensing section from directly entering the subcooling section, ie, without being dried, filtered and degassed.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im Folgenden näher beschreiben. Es zeigen

Fig. 1
einen Querstromkondensator mit oben liegender Untererkühlstrecke und seitlich angeordnetem integrierten Sammler,
Fig. 2
den Sammler mit einem benachbarten Sammelrohr als Schnittdarstellung,
Embodiments of the invention are illustrated in the drawings and will be described in more detail below. Show it
Fig. 1
a cross-flow capacitor with upper subcooling section and laterally arranged integrated collector,
Fig. 2
the collector with a neighboring manifold as a sectional view,

Fig. 1 zeigt einen mehrflutig durchströmbaren Querstromkondensator 1, welcher einen Rohrrippenblock 2, seitlich angeordnete Sammelrohre 3, 4 sowie einen integrierten Sammler 5 aufweist. Die in abwechselnde Richtungen weisenden Pfeile P1, P2, P3, P4, P5 und P6 stellen die Strömungsrichtungen des Kältemittels in einzelnen nicht näher dargestellten Rohrgruppen des Rohrrippenblockes 2 dar, wobei das Kältemittel über einen unten liegenden Stutzen 3a eintritt und über einen oben liegenden Stutzen 3b austritt. Der Rohrrippenblock 2 besteht aus einem Kondensierabschnitt, welcher den Pfeilen P1 bis P5 entspricht, und einem oberhalb des Kondensierabschnittes angeordneten Unterkühlabschnitt, welcher durch den Pfeil P6 gekennzeichnet ist. Im Unterkühlabschnitt strömt im Wesentlichen flüssiges Kältemittel, welches durch die Umgebungsluft, weiche den Kondensator 1 beaufschlagt, unter die Kondensationstemperatur des Kältemittels abgekühlt wird. Anschließend verlässt das Kältemittel über den Stutzen 3b den Kondensator 1. Fig. 1 shows a multi-flow permeable cross-flow condenser 1, which has a tube fin block 2, laterally arranged manifolds 3, 4 and an integrated collector 5. The pointing in alternate directions arrows P1, P2, P3, P4, P5 and P6 represent the flow directions of the refrigerant in individual pipe groups of the pipe fin block 2, not shown, wherein the refrigerant enters via a lower nozzle 3a and 3b via an overhead nozzle exit. The tube fin block 2 consists of a condensing section, which corresponds to the arrows P1 to P5, and a above the Kondensierabschnittes arranged subcooling section, which is indicated by the arrow P6. In the subcooling section, substantially liquid refrigerant flows, which is cooled by the ambient air, which acts on the condenser 1, below the condensation temperature of the refrigerant. Subsequently, the refrigerant leaves the condenser 1 via the connection 3b.

Fig. 2 zeigt den Sammler 5 mit Sammelrohr 4 des Kondensators 1 im Schnitt in einer 3-D-Darstellung Vom Sammelrohr 4 sind nur die beiden oberen Kammern 4a, 4b dargestellt, welche mit dem letzten Durchgang P5 des Kondensierabschnittes des Kondensators bzw. mit der Unterkühlstrecke P6 verbunden sind. Der Sammler 5 besteht - wie aus dem eingangs genannten Stand der Technik bekannt - aus einem zylindrischen Behälter, weicher aus einem Rohr 5a und einem extrudierten Profilstück 5 b zusammengesetzt ist. Der Sammler 5 ist unten durch einen eingelöteten Boden 6 unlösbar verschlossen und oben durch einen lösbaren Verschlussstopfen 7 abgeschlossen. Die Kammer 4a ist über eine erste Übertrittsöffnung 8 und die Kammer 4b über eine zweite Übertrittsöffnung 9 mit dem Inneren des Sammlers 5 kältemittelseitig verbunden. Im Inneren des Sammlers 5 ist ein Filter-Trockner 10 (auch Trockner-Filter-Einsatz genannt) angeordnet, weicher - wie aus dem Stand der Technik bekannt - mit einem Trocknermaterial, einem so genannten Molekularsieb gefüllt ist und auf seiner Ober- sowie Unterseite, d. h. Kältemitteleintritts- und Kältemittelaustrittsseite ein Sieb, z. B. in Form eines Vlieses (nicht dargestellt) zum Filtern des Kältemittels aufweist. Oberhalb des Trockners 10 ist ein Stopfen 11 angeordnet, welcher umfangseitig über einen O-Ring 12 im Bereich zwischen den beiden Übertrittsöffnungen 8, 9 gegenüber dem Inneren des Profilstückes 5b abgedichtet ist. Zwischen dem Stopfen 11 und dem Trockner 10 ist im Bereich der Über trittsöffnung 8 eine Einströmkammer 13 gebildet. Unterhalb des Trockners 10 befindet sich eine Bevorratungskammer 14, welche der Speicherung von flüssigem und/oder gasförmigem Kältemittel dient. Innerhalb des Sammlers 5 ist ferner außermittig und in Wandnähe ein Steigrohr 15 angeordnet, welches durch den Filter-Trockner 10 hindurch geführt ist, nach unten in den Bevor ratungsraum 14 eintaucht bzw. bis zum Boden 6 reicht und sich nach oben bis in den Stopfen 11 erstreckt, welcher das Steigrohr 15 über eine Öffnung 11 a mit der Kammer 4b und damit mit dem Unterkühlabschnitt P6 verbindet. Im Stopfen 11 findet somit eine nicht dargestellte Umlenkung des Kältemittels vom Steigrohr 15 in die Kammer 4b statt. Das Steigrohr 15 weist im Bereich des Bodens 6 eine Öffnung 15a auf, über weiche Kältemittel in das Steigrohr 15 eintreten kann. Fig. 2 shows the collector 5 with manifold 4 of the capacitor 1 in section in a 3-D representation of the manifold 4, only the two upper chambers 4a, 4b are shown, which with the last passage P5 of Kondensierabschnittes of the capacitor or with the subcooling path P6 are connected. The collector 5 consists - as known from the aforementioned prior art - from a cylindrical container, which is composed of a tube 5a and an extruded profile piece 5 b. The collector 5 is undetachably closed at the bottom by a soldered-in bottom 6 and closed at the top by a detachable sealing plug 7. The chamber 4a is connected via a first transfer opening 8 and the chamber 4b via a second transfer opening 9 with the interior of the collector 5 on the refrigerant side. In the interior of the collector 5, a filter drier 10 (also called dryer-filter insert) is arranged, which - as known from the prior art - is filled with a drier material, a so-called molecular sieve and on its top and bottom, ie refrigerant inlet and refrigerant outlet side a sieve, z. B. in the form of a nonwoven (not shown) for filtering the refrigerant. Above the dryer 10, a plug 11 is arranged, which is peripherally sealed via an O-ring 12 in the region between the two transfer openings 8, 9 with respect to the interior of the profile piece 5b. Between the plug 11 and the dryer 10, an inflow chamber 13 is formed in the region of the overflow opening 8. Below the dryer 10 is a storage chamber 14, which serves to store liquid and / or gaseous refrigerant. Within the collector 5 is also eccentrically and near the wall, a riser 15 is arranged, which is passed through the filter dryer 10 through, down into the Before advisungsraum 14 dives or reaches to the bottom 6 and up to the stopper 11th extends, which connects the riser 15 via an opening 11 a with the chamber 4b and thus with the subcooling section P6. In the plug 11 thus takes place, not shown deflection of the refrigerant from the riser 15 into the chamber 4 b instead. The riser 15 has in the region of the bottom 6 an opening 15 a, via soft refrigerant can enter the riser 15.

Die Funktion des zuvor beschriebenen Sammlers 5 mit Filter-Trockner 10 ist folgende: Das aus dem letzten Durchgang P5 des Kondensierabschnittes des Kondensators 1 austretende Kältemittel gelangt über die Übertrittsöffnung 8 in die Einströmkammer 13, wo sich das Kältemittel gleichmäßig über den Querschnitt des Sammlers 5 verteilt und damit in seiner Strömungsgeschwindigkeit reduziert wird. Von der Einströmkammer 13 strömt das Kältemittel (zwangsweise) durch den Filter-Trockner 10, durch welchen es gefiltert und getrocknet wird. Nach Austritt aus dem Filter-Trockner 10 gelangt das Kältemittel in den Bevorratungsraum 14, wo sich seine Strömungsgeschwindigkeit weiter verringert. Dabei können gasförmige Bestandteile des Kältemittels abgeschieden werden, welche nach oben steigen und sich im oberen Bereich des Bevorratungsraumes 14 sammeln. Im untersten Bereich des Bevorratungsraumes 14, am Boden 6, tritt das Kältemittel über die Eintrittsöffnung 15a in das Steigrohr 15 ein und durchströmt dieses von unten nach oben, d. h. es durchquert den Filter-Trockner 10 im Steigrohr 15 und gelangt in den Stopfen 11, wo es in die Kammer 4b umgelenkt wird und von dort aus in den Unterkühlabschnitt P6 eintritt.The function of the previously described collector 5 with filter-drier 10 is as follows: The refrigerant emerging from the last passage P5 of the condensing section of the condenser 1 passes via the transfer opening 8 into the inflow chamber 13, where the refrigerant flows uniformly over the cross section of the collector 5 is distributed and thus reduced in its flow velocity. From the inflow chamber 13, the refrigerant flows (forcibly) through the filter dryer 10, through which it is filtered and dried. After exiting the filter-drier 10, the refrigerant enters the storage space 14, where its flow rate is further reduced. In this case, gaseous components of the refrigerant can be separated, which rise upwards and collect in the upper region of the storage space 14. In the lowermost region of the storage space 14, at the bottom 6, the refrigerant enters the riser 15 via the inlet opening 15a and flows through it from bottom to top, ie it passes through the filter drier 10 in the riser 15 and enters the plug 11, where it is deflected into the chamber 4b and enters from there into the subcooling section P6.

Da der Sammler 5 einen lösbaren Verschlussstopfen 7 aufweist, können der Filter-Trockner 10, das Steigrohr 15 und der Stopfen 11 zu Wartungszwekken getauscht werden. Dies ist insbesondere dann einfach zu handhaben, wenn Filter-Trockner 10, Steigrohr 15 und Stopfen 11 als eine vorgefertigte zusammenhängende Baueinheit ausgebildet sind.Since the collector 5 has a releasable sealing plug 7, the filter-dryer 10, the riser 15 and the plug 11 can be exchanged for maintenance purposes. This is particularly easy to handle when filter dryer 10, riser 15 and plug 11 are formed as a prefabricated contiguous unit.

Die Erfindung ist nicht auf Filter-Trockner beschränkt, die mit einem Granulat aus hygroskopischem Material gefüllt sind. Möglich im Rahmen der Erfindung sind auch kompakte Trockner, die aus einer festen Kunststoffmasse mit eingelagertem Molekularsieb bestehen - wie in der DE 102 34 889 A1 der Anmelderin beschrieben.The invention is not limited to filter dryers filled with granules of hygroscopic material. Possible within the scope of the invention are also compact dryers, which consist of a solid plastic mass with intercalated molecular sieve - as in DE 102 34 889 A1 the applicant described.

Claims (1)

  1. A condenser (1) for use in an air conditioning system, in particular of a vehicle, with a finned tube block (2) with laterally arranged header tubes (3, 4), wherein the finned tube block (2) is provided with horizontally running tubes, a condensing section (P1 to P5) and a supercooling section (P6) arranged above the condensing section, as well as with a collector (5) arranged parallel to one of the header tubes, wherein said collector includes a dryer-filter insert (10) and an ascending flow pipe (15), wherein said collector disposes of a refrigerant connection with the condensing section (P5) via a first overflow opening (8) and with the supercooling section (P6) via a second overflow opening (9); wherein an inflow chamber (13) is arranged in the region of the first overflow opening (8) in the collector (5), characterized in that said inflow chamber is bounded by a stopper (11) on the upper side and by the dryer-filter insert (10) on the lower side, wherein a storage space (14) for the refrigerant is located below the dryer-filter insert (10) in the collector (5); and the ascending flow pipe (15) which passes through the dryer-filter insert (10) is provided with an inlet opening (15a) arranged in the storage space (14) and an upper outlet end (15b) which is connected to the supercooling section (P6) via the stopper (11).
EP06000594.9A 2005-02-03 2006-01-12 Condenser for an air conditioning system, particularly for a motor vehicule Not-in-force EP1703233B1 (en)

Priority Applications (1)

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EP11165641.9A EP2378225B1 (en) 2005-02-03 2006-01-12 Condenser for an air conditioner, in particular for a motor vehicle

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DE102005005187A DE102005005187A1 (en) 2005-02-03 2005-02-03 Condenser for an air conditioning system, in particular a motor vehicle

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EP11165641.9A Division EP2378225B1 (en) 2005-02-03 2006-01-12 Condenser for an air conditioner, in particular for a motor vehicle

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EP1703233A2 EP1703233A2 (en) 2006-09-20
EP1703233A3 EP1703233A3 (en) 2008-10-29
EP1703233B1 true EP1703233B1 (en) 2015-08-05

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Also Published As

Publication number Publication date
EP1703233A3 (en) 2008-10-29
DE102005005187A1 (en) 2006-08-10
EP1703233A2 (en) 2006-09-20
JP2006214714A (en) 2006-08-17
US20060185385A1 (en) 2006-08-24
EP2378225A3 (en) 2012-05-23
EP2378225A2 (en) 2011-10-19
EP2378225B1 (en) 2018-08-08
JP5033330B2 (en) 2012-09-26

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