EP1298405A2 - Heat exchanger, particularly gas cooler for CO2-air conditioner - Google Patents

Heat exchanger, particularly gas cooler for CO2-air conditioner Download PDF

Info

Publication number
EP1298405A2
EP1298405A2 EP02018822A EP02018822A EP1298405A2 EP 1298405 A2 EP1298405 A2 EP 1298405A2 EP 02018822 A EP02018822 A EP 02018822A EP 02018822 A EP02018822 A EP 02018822A EP 1298405 A2 EP1298405 A2 EP 1298405A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
fluid
tube
exchanger according
manifold
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.)
Granted
Application number
EP02018822A
Other languages
German (de)
French (fr)
Other versions
EP1298405B1 (en
EP1298405A3 (en
Inventor
Walter Dipl.-Ing. Demuth
Martin Dipl.-Ing. Kotsch
Hans-Joachim Dipl.-Ing. Krauss
Hagen Dipl.-Ing. Mittelstrass
Karl-Heinz Dipl.-Ing. Staffa
Christoph Walter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1298405A2 publication Critical patent/EP1298405A2/en
Publication of EP1298405A3 publication Critical patent/EP1298405A3/en
Application granted granted Critical
Publication of EP1298405B1 publication Critical patent/EP1298405B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • 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
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
    • 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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
    • 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
    • F28D2021/0073—Gas coolers

Definitions

  • the invention relates to a heat exchanger, in particular a Gas cooler for CO2 - air conditioning systems for motor vehicles according to the generic term of claim 1.
  • a heat exchanger was by the DE-A 196 49 129 known to the applicant.
  • Such constructions in particular for CO2 air conditioning systems are characterized by two Headers and an intermediate heat exchanger network characterized, which consists of flat tubes, in particular Multi-chamber pipes and interposed corrugated fins exists.
  • the Flat tubes are twisted end and are of appropriate Pulled through or slits in the headers fluid-tight. Inside the headers and the multi-chamber flat tubes flows Refrigerant, and on the outside of the flat tubes, d. H. through the Corrugated ribs flow ambient air to dissipate the heat of the refrigerant.
  • Such heat exchangers are either parallel or Motig flows through, in the latter case partitions in the headers to Deflection of the refrigerant are provided.
  • the heat exchanger in addition to the two headers a distribution device, via which the entering refrigerant flow to two outer inlet chambers is distributed and from there meandering to the middle area of the Heat exchanger flows to finally come out of a middle chamber withdraw.
  • the refrigerant preferably CO2
  • z. B. is applicable for capacitors - is especially in the horizontal position of the refrigerant pipes, d. H.
  • the vertical position of the headers ensures that the exiting Refrigerant flow is not in the range of warm recirculation flow device. Rather, the exiting refrigerant flow is in one Flow region of the cooling air, which is relatively undisturbed and thus a ensures effective cooling of the refrigerant flow.
  • the distribution device is a tube formed, which is arranged parallel to one of the manifolds.
  • Both tubes can be two-piece or be formed integrally as an extruded part. This gives a compact design for this heat exchanger without additional Connections, but only with a refrigerant inlet and a Refrigerant outlet for the entire heat exchanger.
  • the thermal Insulation between the two tubes serves to prevent heat from entering refrigerant to the escaping refrigerant - almost on the Ways of internal heat exchange - is transmitted.
  • the manifold in particular in one-piece extruded construction in a known manner with a longitudinal slot for receiving the twisted ends of the flat tubes be provided, d. H. approximately in the manner according to EP-A 0 992 757 of Applicant.
  • FIG. 1 shows a gas cooler 1 for an air conditioning system for a motor vehicle operated with CO2 as a refrigerant.
  • a gas cooler is preferably installed in the front region of the engine compartment, where the coolant cooler for the internal combustion engine is located. In this respect, in this area, in particular in stop-and-go operation, recirculation flows of warm air from the engine area can be expected.
  • the gas cooler 1 is shown here only schematically and has on its left side a manifold 2 and on its right side a manifold 3, which is assigned a distributor 4. Between the headers 2 and 3, which are arranged vertically in the vehicle, are parallel, here shown only by arrows 5 flat tubes, between which corrugated fins, not shown, which are acted upon by the ambient air, are.
  • the distributor 4 is tubular in cross-section and arranged parallel to the manifold 3; it has a refrigerant inlet 6 and two overflow openings 7 and 8, which open from the interior 9 of the distributor 4 into an upper chamber 10 and a lower chamber 11.
  • the manifold 3 is divided into a total of four chambers, namely 10 and 11 and 12 and 13, through the partitions 14, 15 and 16.
  • the opposite manifold 2 is divided by partitions 17 and 18 into two outer chambers 19 and 20 and a middle Subdivided chamber 21, which has a refrigerant outlet 22.
  • the refrigerant passage through this gas cooler 1 is as follows:
  • the refrigerant enters via the inlet 6 in the distributor 4, where it distributed in the interior 9 and in each case via the overflow 7 in the overhead chamber 10 and over the overflow 8 in the bottom lying chamber 11 passes.
  • the refrigerant flow is thus in two equal Divided mass flows, each following the arrows 5, from right to flow through the gas cooler on the left and the chambers on the other side Reach 19 and 20.
  • both refrigerant flows back into the deflected other direction to enter the chambers 12 and 13, where they are redirected again, after renewed flow through the Combine gas cooler 1 in the end chamber 21 and through the Refrigerant outlet 22 leave the gas cooler 1.
  • Fig. 2 shows the manifold 3 and the distributor 4 of FIG. 1, here as a unit 30, which consists of a manifold 31 and a manifold 32.
  • the manifold 31 is divided by partitions 34, 35, 36 into individual chambers, in particular an upper chamber 37 and a lower chamber 38. The latter are via flow channels 39 and 40 with the manifold 32 in flow communication.
  • an air gap 41 (which may also be filled with an insulating material) 41 is arranged between the walls of the manifold 31 and the manifold 32.
  • This air gap 41 can be subsequently milled into the extruded part, as also apparent from Fig. 2b.
  • the flow flow of the refrigerant takes place in such a way that the refrigerant flow G enters the end face at an inlet opening 42 in the manifold 32 and is distributed there; Via the overflow channels 39 and 40, which preferably have the same cross-section, the refrigerant flow G is divided into two equal streams G1 and G2, which enter into the chambers 37 and 38. From there, the refrigerant flow takes place in the manner described for Fig. 1.
  • Fig. 2a is a cross section through the extruded unit 30 along the line A - A shown in Fig. 2, with in the longitudinal slot 33 (Fig. 2) tight soldered, twisted flat tube ends 43.
  • the longitudinal slot 33 Fig 2
  • the overflow channel 39 can be drilled from the outside after the extrusion process.
  • FIG. 2b shows a further cross-section, in accordance with the line B - B in Fig. 2: here, the air gap 41 is clearly visible, it can also be made by machining after the extrusion process.
  • the manifold 32 and the manifold 31 are thermally conductive connected only in the region of the overflow 39 and 40, while they are completely isolated in the central region, which has a performance-enhancing effect on the cooling of the refrigerant, because thus the back-flowing refrigerant in the middle chambers 44 and 45 is not reheated by the warmer entering refrigerant in the manifold 32 again.
  • FIG. 3 shows a further embodiment variant of the extruded unit with a collecting tube 50, which has a larger diameter than the associated distributor tube 51.
  • One of the two transfer channels is designated 52.
  • the collecting tube 50 like the exemplary embodiment described with reference to FIG. 2, is likewise provided with a longitudinal slot for receiving twisted flat tube ends 53.
  • Fig. 4 shows a further embodiment of a manifold / manifold unit, wherein a manifold 60 and a manifold 61 are designed as a separately prepared tubes, which are connected via an intermediate piece 62 (the second is not shown here), preferably soldered.
  • a manifold 60 an opening 63 and the manifold 61 an opening 64 and the intermediate piece 62 has an opening 65.
  • the openings 63, 64 and 65 are aligned and thus form one of the two transfer channels.
  • a slot 66 twisted flat tube ends 67 are used and soldered, wherein - as described above - are arranged on the outside of the flat tubes corrugated ribs 68.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

Heat transfer device, especially used as a gas condenser for CO2 air-conditioning systems of motor vehicles, comprises a heat transfer net with flat pipes (5), corrugated ribs, and collection pipes (2, 3). A distribution device (4) arranged parallel to one of the two collection pipes has a fluid inlet (6) and two fluid distribution openings (7, 8) connected to an outer chamber (10, 11) of the adjacent collection pipe. A fluid outlet (22) is arranged in a middle chamber (21) of one of the collection pipes. <??>Preferred Features: The flat pipes run horizontally and the collection pipes run vertically. The two fluid distribution openings open into the uppermost and lowermost chambers of the collection pipe.

Description

Die Erfindung bezieht sich auf einen Wärmeübertrager, insbesondere einen Gaskühler für CO2 - Klimaanlagen für Kraftfahrzeuge nach dem Oberbegriff des Patentanspruches 1. Ein solcher Wärmeübertrager wurde durch die DE-A 196 49 129 der Anmelderin bekannt.The invention relates to a heat exchanger, in particular a Gas cooler for CO2 - air conditioning systems for motor vehicles according to the generic term of claim 1. Such a heat exchanger was by the DE-A 196 49 129 known to the applicant.

Derartige Bauweisen, insbesondere für CO2 - Klimaanlagen sind durch zwei Sammelrohre und ein dazwischen liegendes Wärmetauschernetz gekennzeichnet, welches aus Flachrohren, insbesondere Mehrkammerrohren und dazwischen angeordneten Wellrippen besteht. Die Flachrohre sind endseitig tordiert und werden von entsprechenden Durchzügen oder Schlitzen in den Sammelrohren fluiddicht aufgenommen. Im Inneren der Sammelrohre und der Mehrkammerflachrohre strömt ein Kältemittel, und auf der Außenseite der Flachrohre, d. h. durch die Wellrippen strömt Umgebungsluft zur Abfuhr der Wärme des Kältemittels. Derartige Wärmeübertrager werden entweder parallel oder mehrflutig durchströmt, wobei im letzteren Falle Trennwände in den Sammelrohren zur Umlenkung des Kältemittels vorgesehen sind. Mehrflutig durchströmte Wärmeübertrager, beispielsweise Kondensatoren für Klimaanlagen werden meistens von oben nach unten durchströmt, so daß sich die Unterkühlstrecke des Kondensators im unteren Bereich des Motorraumes des Kraftfahrzeuges befindet. Man hat daher bereits vorgeschlagen, die Strömungsrichtung von unten nach oben verlaufen zu lassen, so daß sich die Unterkühlstrecke im oberen Bereich des Kondensators befindet (DE-A 199 12 381 der Anmelderin). In Weiterbildung dieses Gedankens wurde auch bereits von der Anmelderin in der DE-A 199 57 945 vorgeschlagen, die Unterkühlstrecke des Kondensators in beliebigen Bereichen anzuordnen, d. h. auch in der Mitte des Kondensators. Diese Maßnahme dient dem Zweck, die Unterkühlstrecke von warmen Rezirkulationsströmungen, die vom Motorraum ausgehen, freizuhalten. Diese bekannten Lösungsvorschläge werden jedoch nicht allen Anforderungen an die Kältemittelführung in einem Wärmeübertrager, der im vorderen Bereich des Motorraumes eingebaut ist, gerecht.Such constructions, in particular for CO2 air conditioning systems are characterized by two Headers and an intermediate heat exchanger network characterized, which consists of flat tubes, in particular Multi-chamber pipes and interposed corrugated fins exists. The Flat tubes are twisted end and are of appropriate Pulled through or slits in the headers fluid-tight. Inside the headers and the multi-chamber flat tubes flows Refrigerant, and on the outside of the flat tubes, d. H. through the Corrugated ribs flow ambient air to dissipate the heat of the refrigerant. Such heat exchangers are either parallel or mehrflutig flows through, in the latter case partitions in the headers to Deflection of the refrigerant are provided. Flowed through several floods Heat exchangers, for example, condensers for air conditioning usually flows through from top to bottom, so that the Subcooling of the capacitor in the lower part of the engine compartment of the motor vehicle is located. It has therefore already been proposed that Flow direction to run from bottom to top, so that the subcooling section is located in the upper region of the condenser (DE-A 199 12 381 of the Applicant). In training of this thought was also already proposed by the applicant in DE-A 199 57 945, the To arrange subcooling of the capacitor in any areas, d. H. also in the middle of the capacitor. This measure serves the purpose of the subcooling section of warm recirculation flows coming from the Engine room go out, keep clear. These known solutions However, not all requirements for the refrigerant guide in one Heat exchanger, which is installed in the front area of the engine compartment, just.

Es ist daher Aufgabe der vorliegenden Erfindung, die Kältemittelführung an die Einbauverhältnisse des Wärmeübertragers im Kraftfahrzeug und die dort anzutreffenden Luftströmungsverhältnisse anzupassen.It is therefore an object of the present invention to provide the refrigerant guide the installation conditions of the heat exchanger in the motor vehicle and there to adapt to the prevailing air flow conditions.

Die Lösung dieser Aufgabe ergibt sich aus den Merkmalen des Patentanspruches 1. Demzufolge weist der Wärmeübertrager zusätzlich zu den beiden Sammelrohren eine Verteilereinrichtung auf, über welche der eintretende Kältemittelstrom auf jeweils zwei äußere Eintrittskammern verteilt wird und von dort mäanderförmig zum mittleren Bereich des Wärmeübertragers strömt, um schließlich aus einer mittleren Kammer auszutreten. Das Kältemittel, vorzugsweise CO2 strömt somit sowohl von unten nach oben als auch von oben nach unten, und beide Ströme treffen sich in der Mitte. Durch diese Kältemittelführung - die auch auf das Kältemittel R 134, z. B. für Kondensatoren anwendbar ist - wird insbesondere bei horizontaler Lage der kältemittelführenden Rohre, d. h. senkrechter Lage der Sammelrohre erreicht, daß der austretende Kältemittelstrom nicht in den Bereich der warmen Rezirkulationströmung gerät. Vielmehr liegt der austretende Kältemittelstrom in einem Strömungsbereich der Kühlluft, der relativ ungestört ist und somit eine wirksame Kühlung des Kältemittelstromes gewährleistet.The solution to this problem arises from the characteristics of Claim 1. Accordingly, the heat exchanger in addition to the two headers a distribution device, via which the entering refrigerant flow to two outer inlet chambers is distributed and from there meandering to the middle area of the Heat exchanger flows to finally come out of a middle chamber withdraw. The refrigerant, preferably CO2, thus flows both from bottom up as well as top to bottom, and meet both streams in the middle. Through this refrigerant guide - which also on the Refrigerant R 134, z. B. is applicable for capacitors - is especially in the horizontal position of the refrigerant pipes, d. H. vertical position of the headers ensures that the exiting Refrigerant flow is not in the range of warm recirculation flow device. Rather, the exiting refrigerant flow is in one Flow region of the cooling air, which is relatively undisturbed and thus a ensures effective cooling of the refrigerant flow.

In weiterer Ausgestaltung der Erfindung ist die Verteileinrichtung als Rohr ausgebildet, welches parallel zu einem der Sammelrohre angeordnet ist. In a further embodiment of the invention, the distribution device is a tube formed, which is arranged parallel to one of the manifolds.

Dabei können beide Rohre (Sammelrohr und Verteilerrohr) zweistückig oder auch als extrudiertes Teil einstückig ausgebildet sein. Dies ergibt eine kompakte Bauweise für diesen Wärmeübertrager ohne zusätzliche Anschlüsse, sondern nur mit einem Kältemitteleintritt und einem Kältemittelaustritt für den gesamten Wärmeübertrager.Both tubes (manifold and manifold) can be two-piece or be formed integrally as an extruded part. This gives a compact design for this heat exchanger without additional Connections, but only with a refrigerant inlet and a Refrigerant outlet for the entire heat exchanger.

Gemäß einer Weiterbildung der Erfindung ist zwischen dem Verteilerrohr und dem Sammelrohr ein Luftspalt vorgesehen, der der thermischen Isolation zwischen beiden Rohren dient, damit nicht Wärme vom eintretenden Kältemittel auf das austretende Kältemittel - quasi auf dem Wege des inneren Wärmeaustausches - übertragen wird.According to one embodiment of the invention is between the manifold and the collecting tube provided an air gap, the thermal Insulation between the two tubes serves to prevent heat from entering refrigerant to the escaping refrigerant - almost on the Ways of internal heat exchange - is transmitted.

In einer vorteilhaften Ausgestaltung der Erfindung kann das Sammelrohr, insbesondere bei einstückiger extrudierter Bauweise in bekannter Weise mit einem Längsschlitz zur Aufnahme der tordierten Enden der Flachrohre versehen sein, d. h. etwa in der Art nach der EP-A 0 992 757 der Anmelderin.In an advantageous embodiment of the invention, the manifold, in particular in one-piece extruded construction in a known manner with a longitudinal slot for receiving the twisted ends of the flat tubes be provided, d. H. approximately in the manner according to EP-A 0 992 757 of Applicant.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher beschrieben:

Fig. 1
zeigt in schematischer Darstellung einen Gaskühler mit Verteileinrichtung und Kältemittelströmungsführung,
Fig. 2
zeigt das Sammelrohr mit integrierter Verteileinrichtung des Gaskühlers nach Fig. 1,
Fig. 2a
zeigt einen Schnitt längs der Linie A - A in Figur 2,
Fig. 2b
zeigt einen Schnitt längs der Linie B - B in Figur 2,
Fig. 3
zeigt eine Abwandlung der Ausführung gemäß Fig. 2 im Querschnitt und
Fig. 4
zeigt eine weitere Ausführungsform für Sammel- und Verteilerrohr.
Embodiments of the invention are illustrated in the drawing and are described in more detail below:
Fig. 1
shows a schematic representation of a gas cooler with distributor and refrigerant flow guide,
Fig. 2
shows the manifold with integrated distributor of the gas cooler of FIG. 1,
Fig. 2a
shows a section along the line A - A in Figure 2,
Fig. 2b
shows a section along the line B - B in Figure 2,
Fig. 3
shows a modification of the embodiment of FIG. 2 in cross section and
Fig. 4
shows a further embodiment of manifold and manifold.

Fig. 1 zeigt einen Gaskühler 1 für eine mit CO2 als Kältemittel betriebene Klimaanlage für ein Kraftfahrzeug. Ein solcher Gaskühler wird vorzugsweise im vorderen Bereich des Motorraumes, wo sich auch der Kühlmittelkühler für den Verbrennungsmotor befindet, eingebaut. Insofern ist in diesem Bereich, insbesondere bei stop-and-go-Betrieb mit Rezirkulationsströmungen von warmer Luft aus dem Motorbereich zu rechnen. Der Gaskühler 1 ist hier nur schematisch dargestellt und weist an seiner linken Seite ein Sammelrohr 2 und an seiner rechten Seite ein Sammelrohr 3 auf, welchem eine Verteileinrichtung 4 zugeordnet ist. Zwischen den Sammelrohren 2 und 3, die im Fahrzeug senkrecht angeordnet sind, befinden sich parallel verlaufende, hier nur durch Pfeile 5 dargestellte Flachrohre, zwischen denen sich nicht dargestellte Wellrippen, die von der Umgebungsluft beaufschlagt werden, befinden. Die Verteileinrichtung 4 ist rohrförmig im Querschnitt ausgebildet und parallel zum Sammelrohr 3 angeordnet; sie weist einen Kältemitteleinlaß 6 und zwei Überströmöffnungen 7 und 8 auf, welche vom Inneren 9 der Verteileinrichtung 4 in eine obere Kammer 10 und eine untere Kammer 11 münden. Das Sammelrohr 3 ist insgesamt in vier Kammern, nämlich 10 und 11 sowie 12 und 13 unterteilt, und zwar durch die Trennwände 14, 15 und 16. Das gegenüberliegende Sammelrohr 2 ist durch Trennwände 17 und 18 in zwei äußere Kammern 19 und 20 sowie eine mittlere Kammer 21 unterteilt, die einen Kältemittelauslaß 22 aufweist. FIG. 1 shows a gas cooler 1 for an air conditioning system for a motor vehicle operated with CO2 as a refrigerant. Such a gas cooler is preferably installed in the front region of the engine compartment, where the coolant cooler for the internal combustion engine is located. In this respect, in this area, in particular in stop-and-go operation, recirculation flows of warm air from the engine area can be expected. The gas cooler 1 is shown here only schematically and has on its left side a manifold 2 and on its right side a manifold 3, which is assigned a distributor 4. Between the headers 2 and 3, which are arranged vertically in the vehicle, are parallel, here shown only by arrows 5 flat tubes, between which corrugated fins, not shown, which are acted upon by the ambient air, are. The distributor 4 is tubular in cross-section and arranged parallel to the manifold 3; it has a refrigerant inlet 6 and two overflow openings 7 and 8, which open from the interior 9 of the distributor 4 into an upper chamber 10 and a lower chamber 11. The manifold 3 is divided into a total of four chambers, namely 10 and 11 and 12 and 13, through the partitions 14, 15 and 16. The opposite manifold 2 is divided by partitions 17 and 18 into two outer chambers 19 and 20 and a middle Subdivided chamber 21, which has a refrigerant outlet 22.

Die Kältemittelführung durch diesen Gaskühler 1 verläuft folgendermaßen: das Kältemittel tritt über den Einlaß 6 in die Verteileinrichtung 4 ein, wo es sich im Inneren 9 verteilt und jeweils über die Überströmöffnung 7 in die obenliegende Kammer 10 und über die Überströmöffnung 8 in die unten liegende Kammer 11 gelangt. Der Kältemittelstrom wird somit in zwei gleiche Massenströme geteilt, die jeweils, den Pfeilen 5 folgend, von rechts nach links den Gaskühler durchströmen und auf der anderen Seite die Kammern 19 und 20 erreichen. Dort werden beide Kältemittelströme wieder in die andere Richtung umgelenkt, um in die Kammern 12 und 13 einzutreten, wo sie abermals umgelenkt werden, sich nach erneutem Durchströmen des Gaskühlers 1 in der Endkammer 21 vereinigen und durch den Kältemittelauslaß 22 den Gaskühler 1 verlassen. Es ergibt sich somit eine zu einer gedachten Mittellinie m symmetrische, mehrflutige Kältemittelführung, wobei der Kältemittelaustrittsstrom im mittleren Bereich des Gaskühlers 1 angeordnet ist. Mit dieser Kältemittelführung soll sichergestellt werden, daß der Kältemittelaustrittsstrom zwecks besserer Kühlung nicht im unteren Bereich des Gaskühlers angeordnet ist, wo mit einer warmen Rezirkulationsströmung zu rechnen ist.The refrigerant passage through this gas cooler 1 is as follows: The refrigerant enters via the inlet 6 in the distributor 4, where it distributed in the interior 9 and in each case via the overflow 7 in the overhead chamber 10 and over the overflow 8 in the bottom lying chamber 11 passes. The refrigerant flow is thus in two equal Divided mass flows, each following the arrows 5, from right to flow through the gas cooler on the left and the chambers on the other side Reach 19 and 20. There, both refrigerant flows back into the deflected other direction to enter the chambers 12 and 13, where they are redirected again, after renewed flow through the Combine gas cooler 1 in the end chamber 21 and through the Refrigerant outlet 22 leave the gas cooler 1. This results in a too an imaginary center line m symmetrical, multi-flow refrigerant line, wherein the refrigerant outlet flow in the central region of the gas cooler 1 is arranged. With this refrigerant guide should be ensured that the refrigerant outlet flow is not in the lower one for better cooling Area of the gas cooler is located, where with a warm Recirculation flow is expected.

Fig. 2 zeigt das Sammelrohr 3 und die Verteileinrichtung 4 aus Fig. 1, hier als Einheit 30, welche aus einem Sammelrohr 31 und einem Verteilerrohr 32 besteht. Das Sammelrohr 31, zusammen mit dem Verteilerrohr 32 als extrudiertes Teil hergestellt, weist einen durchgehenden Längsschlitz 33 zur Aufnahme der nicht dargestellten tordierten Enden von Flachrohren auf, wie beispielsweise in der EP-A 0 992 757 der Anmelderin genauer beschrieben. Ferner ist das Sammelrohr 31 durch Trennwände 34, 35, 36 in einzelne Kammern, insbesondere eine obere Kammer 37 und eine untere Kammer 38 unterteilt. Letztere stehen über Überströmkanäle 39 und 40 mit dem Verteilerrohr 32 in Strömungsverbindung. Zwischen den Wänden des Sammelrohres 31 und des Verteilerrohres 32 ist ein Luftspalt (der auch mit einem Isoliermaterial gefüllt sein kann) 41 angeordnet. Dieser Luftspalt 41 kann nachträglich in das extrudierte Teil eingefräst werden, wie auch aus Fig. 2b hervorgeht. Der Strömungsfluß des Kältemittel erfolgt in der Weise, daß der Kältemittelstrom G stirnseitig an einer Eintrittsöffnung 42 in das Verteilerrohr 32 eintritt und dort verteilt wird; über die Überströmkanäle 39 und 40, die bevorzugt den gleichen Querschnitt aufweisen, wird der Kältemittelstrom G in zwei gleiche Ströme G1 und G2 aufgeteilt, die in die Kammern 37 und 38 eintreten. Von dort aus erfolgt der Kältemittelstrom in der Weise, wie für Fig. 1 beschrieben. Fig. 2 shows the manifold 3 and the distributor 4 of FIG. 1, here as a unit 30, which consists of a manifold 31 and a manifold 32. The manifold 31, made together with the manifold 32 as an extruded part, has a continuous longitudinal slot 33 for receiving the not shown twisted ends of flat tubes, as described in more detail in the EP-A 0 992 757 of the Applicant. Further, the manifold 31 is divided by partitions 34, 35, 36 into individual chambers, in particular an upper chamber 37 and a lower chamber 38. The latter are via flow channels 39 and 40 with the manifold 32 in flow communication. Between the walls of the manifold 31 and the manifold 32, an air gap (which may also be filled with an insulating material) 41 is arranged. This air gap 41 can be subsequently milled into the extruded part, as also apparent from Fig. 2b. The flow flow of the refrigerant takes place in such a way that the refrigerant flow G enters the end face at an inlet opening 42 in the manifold 32 and is distributed there; Via the overflow channels 39 and 40, which preferably have the same cross-section, the refrigerant flow G is divided into two equal streams G1 and G2, which enter into the chambers 37 and 38. From there, the refrigerant flow takes place in the manner described for Fig. 1.

In Fig. 2a ist ein Querschnitt durch die extrudierte Einheit 30 gemäß der Linie A - A in Fig. 2 dargestellt, und zwar mit in den Längsschlitz 33 (Fig. 2) dicht eingelöteten, tordierten Flachrohrenden 43. In Folge des Längsschlitzes 33 (Fig. 2) kann der Überströmkanal 39 (und auch 40) von außen nach dem Extrusionsvorgang gebohrt werden. In Fig. 2a is a cross section through the extruded unit 30 along the line A - A shown in Fig. 2, with in the longitudinal slot 33 (Fig. 2) tight soldered, twisted flat tube ends 43. As a result of the longitudinal slot 33 (Fig 2), the overflow channel 39 (and also 40) can be drilled from the outside after the extrusion process.

Fig. 2b zeigt einen weiteren Querschnitt, und zwar gemäß der Linie B - B in Fig. 2: hier wird der Luftspalt 41 deutlich sichtbar, er kann ebenfalls nach dem Extrusionsvorgang spangebend hergestellt werden. Somit sind das Verteilerrohr 32 und das Sammelrohr 31 nur im Bereich der Überströmkanäle 39 und 40 wärmeleitend verbunden, während sie im mittleren Bereich vollständig isoliert sind, was sich leistungsfördernd auf die Abkühlung des Kältemittels auswirkt, weil somit das rückströmende Kältemittel in den mittleren Kammern 44 und 45 nicht durch das wärmere eintretende Kältemittel im Verteilerrohr 32 wieder erwärmt wird. 2b shows a further cross-section, in accordance with the line B - B in Fig. 2: here, the air gap 41 is clearly visible, it can also be made by machining after the extrusion process. Thus, the manifold 32 and the manifold 31 are thermally conductive connected only in the region of the overflow 39 and 40, while they are completely isolated in the central region, which has a performance-enhancing effect on the cooling of the refrigerant, because thus the back-flowing refrigerant in the middle chambers 44 and 45 is not reheated by the warmer entering refrigerant in the manifold 32 again.

Fig. 3 zeigt eine weitere Ausführungsvariante der extrudierten Einheit mit einem Sammelrohr 50, welches einen größeren Durchmesser als das zugeordnete Verteilerrohr 51 aufweist. Einer der beiden Überströmkanäle ist mit 52 bezeichnet. Das Sammelrohr 50 ist wie das unter Fig. 2 beschriebene Ausführungsbeispiel ebenfalls mit einem Längsschlitz zur Aufnahme von tordierten Flachrohrenden 53 versehen. FIG. 3 shows a further embodiment variant of the extruded unit with a collecting tube 50, which has a larger diameter than the associated distributor tube 51. One of the two transfer channels is designated 52. The collecting tube 50, like the exemplary embodiment described with reference to FIG. 2, is likewise provided with a longitudinal slot for receiving twisted flat tube ends 53.

Fig. 4 zeigt ein weiteres Ausführungsbeispiel einer Sammelrohr/Verteilerrohr-Einheit, wobei ein Sammelrohr 60 und ein Verteilerrohr 61 als getrennt hergestellte Rohre ausgeführt sind, die über ein Zwischenstück 62 (das zweite ist hier nicht dargestellt) miteinander verbunden, vorzugsweise verlötet werden. Zur Ausbildung der oben beschriebenen Überströmkanäle weisen sowohl das Sammelrohr 60 eine Öffnung 63 als auch das Verteilerrohr 61 eine Öffnung 64 und das Zwischenstück 62 eine Öffnung 65 auf. Nach dem Zusammenbau der drei Teile 60, 61 und 62 fluchten die Öffnungen 63, 64 und 65 und bilden somit einen der beiden Überströmkanäle aus. In einen Schlitz 66 werden tordierte Flachrohrenden 67 eingesetzt und verlötet, wobei - wie oben beschrieben - auf der Außenseite der Flachrohre Wellrippen 68 angeordnet sind. Fig. 4 shows a further embodiment of a manifold / manifold unit, wherein a manifold 60 and a manifold 61 are designed as a separately prepared tubes, which are connected via an intermediate piece 62 (the second is not shown here), preferably soldered. To form the overflow channels described above, both the manifold 60 an opening 63 and the manifold 61 an opening 64 and the intermediate piece 62 has an opening 65. After assembly of the three parts 60, 61 and 62, the openings 63, 64 and 65 are aligned and thus form one of the two transfer channels. In a slot 66 twisted flat tube ends 67 are used and soldered, wherein - as described above - are arranged on the outside of the flat tubes corrugated ribs 68.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
Gaskühlergas cooler
22
Sammelrohr, linksCollector pipe, left
33
Sammelrohr, rechtsCollecting tube, right
44
Verteileinrichtungdistributor
55
Pfeile (nicht dargestellte Flachrohre)Arrows (flat tubes, not shown)
66
KältemitteleinlaßRefrigerant inlet
77
Überströmöffnungoverflow
88th
Überströmöffnungoverflow
99
Inneres der VerteileinrichtungInterior of the distributor
1010
obere Kammerupper chamber
1111
untere Kammerlower chamber
1212
Kammerchamber
1313
Kammerchamber
1414
Trennwandpartition wall
1515
Trennwandpartition wall
1616
Trennwandpartition wall
1717
Trennwandpartition wall
1818
Trennwandpartition wall
1919
äußere Kammerouter chamber
2020
äußere Kammerouter chamber
2121
mittlere Kammer (Endkammer)middle chamber (end chamber)
2222
Kältemittelauslaßrefrigerant outlet
3030
Einheitunit
3131
Sammelrohrmanifold
3232
Verteilerrohrmanifold
3333
Längsschlitzlongitudinal slot
3434
Trennwandpartition wall
3535
Trennwandpartition wall
3636
Trennwand partition wall
3737
obere Kammerupper chamber
3838
untere Kammerlower chamber
3939
Überströmkanaloverflow
4040
ÜberstromkanalOverflow channel
4141
Luftspaltair gap
4242
Eintrittsöffnunginlet opening
4343
tordiertes Flachrohrendetwisted flat tube end
4444
mittlere Kammermiddle chamber
4545
mittlere Kammermiddle chamber
5050
Sammelrohrmanifold
5151
Verteilerrohrmanifold
5252
Überströmkanaloverflow
5353
tordiertes Flachrohrendetwisted flat tube end
6060
Sammelrohrmanifold
6161
Verteilerrohrmanifold
6262
Zwischenstückconnecting piece
6363
Öffnungopening
6464
Öffnungopening
6565
Öffnungopening
6666
Längsschlitzlongitudinal slot
6767
tordiertes Flachrohrendetwisted flat tube end
6868
Wellrippencorrugated fins

Claims (7)

Wärmeübertrager, insbesondere Gaskühler für CO2-Klimaanlagen für Kraftfahrzeuge, bestehend aus einem Wärmeübertragernetz mit Flachrohren und Wellrippen sowie aus Sammelrohren, in welchen die Enden der Flachrohre fluiddicht befestigt sind, wobei die Flachrohre mit den Sammelrohren in Fluidverbindung stehen und von einem Fluid, vorzugsweise CO2-Kältemittel durchströmbar sind, wobei die Sammelrohre durch Trennwände in einzelne Kammern unterteilt sind und wobei der Wärmeübertrager einen Fluideinlaß und einen Fluidauslaß aufweist, dadurch gekennzeichnet, daß parallel zu einem der beiden Sammelrohre (3, 31, 50, 60) eine Verteileinrichtung (4, 32, 51, 61) angeordnet ist, welche den Fluideinlaß (6, 42) und zwei Fluidverteilöffnungen (7, 8; 39, 40) aufweist, die jeweils mit einer äußeren Kammer (10,11; 37,38) des benachbarten Sammelrohres (3, 31) in Fluidverbindung stehen, und daß der Fluidauslaß (22) an einer mittleren Kammer (21) eines Sammelrohres (2) angeordnet ist.Heat exchangers, in particular gas coolers for CO2 air conditioning systems for motor vehicles, consisting of a heat exchanger network with flat tubes and corrugated fins as well as collecting tubes, in which the ends of the flat tubes are attached fluid-tight, the flat tubes are in fluid communication with the manifolds and from a fluid, preferably CO2 Refrigerants are flowed through, wherein the manifolds are divided by partitions into individual chambers and wherein the heat exchanger has a fluid inlet and a fluid outlet, characterized in that parallel to one of the two manifolds (3, 31, 50, 60) a distributor (4, 32 , 51, 61) which has the fluid inlet (6, 42) and two fluid distribution openings (7, 8, 39, 40) which are each connected to an outer chamber (10, 11; 37, 38) of the adjacent collection tube (3 , 31) are in fluid communication, and in that the fluid outlet (22) is arranged on a central chamber (21) of a collecting tube (2). Wärmeübertrager nach Anspruch 1, dadurch gekennzeichnet, daß die Flachrohre (5) horizontal verlaufend und die Sammelrohre (2, 3; 31) senkrecht verlaufend angeordnet sind, und daß die beiden Fluidverteilöffnungen (7, 8; 39, 40) in die oberste (40, 37) und die unterste Kammer (11, 38) des Sammelrohres (3, 31) münden.Heat exchanger according to Claim 1, characterized in that the flat tubes (5) extend horizontally and the collecting tubes (2, 3; 31) are arranged vertically, and in that the two fluid distribution openings (7, 8; , 37) and the lowest chamber (11, 38) of the collecting tube (3, 31) open. Wärmeübertrager nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Verteileinrichtung als Rohr (32) ausgebildet ist, welches über zwei Überströmkanäle (39, 40) mit den äußeren Kammern (37, 38) des benachbarten Sammelrohres (31) in Fluidverbindung steht.Heat exchanger according to claim 1 or 2, characterized in that the distributor device is designed as a tube (32) which is in fluid communication via two overflow channels (39, 40) with the outer chambers (37, 38) of the adjacent collector tube (31). Wärmeübertrager nach einem der vorgehenden Ansprüche, dadurch gekennzeichnet, daß zwischen der Verteileinrichtung (32) und dem benachbarten Sammelrohr (31) ein Spalt (41) zur thermischen Isolation angeordnet ist.Heat exchanger according to one of the preceding claims, characterized in that a gap (41) for thermal insulation is arranged between the distributor device (32) and the adjacent collector tube (31). Wärmeübertrager nach einem der vorgehenden Ansprüche, dadurch gekennzeichnet, daß das Sammelrohr (31, 50) und die Verteileinrichtung (32, 51) als ein extrudiertes Teil hergestellt sind.Heat exchanger according to one of the preceding claims, characterized in that the collector tube (31, 50) and the distributor device (32, 51) are made as an extruded part. Wärmeübertrager nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Sammelrohr (60) und die Verteileinrichtung (61) jeweils als separate Rohre ausgebildet sind, die über Zwischenstücke (62) im Bereich von Überströmöffnungen (63, 64, 65) miteinander verbunden sind.Heat exchanger according to one of claims 1 to 4, characterized in that the collecting tube (60) and the distributor device (61) are each designed as separate tubes, which are connected to one another via intermediate pieces (62) in the region of overflow openings (63, 64, 65) are. Wärmeübertrager nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Sammelrohr (31, 50, 60) einen durchgehenden, in Längsrichtung verlaufenden Schlitz (33, 66) zur Aufnahme der tordierten Enden (43, 53, 67) der Flachrohre aufweist.Heat exchanger according to one of the preceding claims, characterized in that the collecting tube (31, 50, 60) has a continuous, longitudinally extending slot (33, 66) for receiving the twisted ends (43, 53, 67) of the flat tubes.
EP02018822A 2001-09-26 2002-08-23 Heat exchanger, particularly gas cooler for CO2-air conditioner Expired - Lifetime EP1298405B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10147521 2001-09-26
DE10147521A DE10147521A1 (en) 2001-09-26 2001-09-26 Heat exchangers, in particular gas coolers CO2 - air conditioners

Publications (3)

Publication Number Publication Date
EP1298405A2 true EP1298405A2 (en) 2003-04-02
EP1298405A3 EP1298405A3 (en) 2003-06-04
EP1298405B1 EP1298405B1 (en) 2006-01-25

Family

ID=7700393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02018822A Expired - Lifetime EP1298405B1 (en) 2001-09-26 2002-08-23 Heat exchanger, particularly gas cooler for CO2-air conditioner

Country Status (4)

Country Link
EP (1) EP1298405B1 (en)
AT (1) ATE316646T1 (en)
DE (2) DE10147521A1 (en)
ES (1) ES2257495T3 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005015110A1 (en) * 2003-08-07 2005-02-17 Norsk Hydro Asa Heat exchanger comprising two manifolds
WO2005022066A1 (en) * 2003-08-26 2005-03-10 Daimlerchrysler Ag Heat exchanger comprising an integrated supply and discharge
EP1762803A1 (en) * 2005-09-13 2007-03-14 Valeo Systemes Thermiques Integrated assembly for air conditioning circuit with a supercritical refrigerant.
CN101900460A (en) * 2010-07-02 2010-12-01 海信科龙电器股份有限公司 Parallel flow evaporator and heat pump air conditioner
CN102252559A (en) * 2011-05-20 2011-11-23 广东美的制冷设备有限公司 Microchannel heat exchanger and manufacturing method thereof
JP2015055405A (en) * 2013-09-11 2015-03-23 ダイキン工業株式会社 Heat exchanger and air conditioner
CN104677170A (en) * 2011-01-21 2015-06-03 大金工业株式会社 Heat exchanger and air conditioner
CN106767012A (en) * 2016-12-22 2017-05-31 青岛海尔空调电子有限公司 A kind of micro-channel heat exchanger and the air-conditioner using the micro-channel heat exchanger
US11841193B2 (en) 2015-11-30 2023-12-12 Carrier Corporation Heat exchanger for residential HVAC applications

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007007233A1 (en) 2007-02-14 2008-09-25 Behr Gmbh & Co. Kg Motor vehicle i.e. car, has heat exchanger e.g. gas cooler, installed such that air inlet speed profile of air flow, which is passed through or against heat exchanger, is inhomogeneously formed
US20220074669A1 (en) * 2020-09-10 2022-03-10 Rheem Manufacturing Company Multi-pass header assembly for a heat exchanger
DE102021129187A1 (en) 2021-11-10 2023-05-11 Audi Aktiengesellschaft Refrigerant cooler for a refrigerant circuit of a motor vehicle and motor vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19649129A1 (en) 1996-11-27 1998-05-28 Behr Gmbh & Co Flat tube heat exchanger with shaped flat tube end section
EP0992757A2 (en) 1998-10-08 2000-04-12 Behr GmbH & Co. Header tube for heat exchanger
DE19912381A1 (en) 1999-03-19 2000-09-21 Behr Gmbh & Co Condenser, esp. for vehicle air conditioning system, has meandering coolant flow path rising up to open into collector with stand pipe opening into chamber separated from collector interior
DE19957945A1 (en) 1999-12-02 2001-06-07 Behr Gmbh & Co Condenser for refrigerant circuit in vehicle air-conditioning unit, has collection pipes at ends of horizontal pipes divided to form multiflow, with hot gas, condensation and lower cooling areas

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB844660A (en) * 1958-04-03 1960-08-17 Ferguson Superheaters Ltd Improvements in and relating to heat exchangers
JP3030036B2 (en) * 1989-08-23 2000-04-10 昭和アルミニウム株式会社 Double heat exchanger
JP3044395B2 (en) * 1990-12-28 2000-05-22 株式会社ゼクセル Receiver dryer integrated condenser
DE4313567C1 (en) * 1993-04-26 1994-09-01 Daimler Benz Ag Heat exchanger for the independent heating of the driver's and passenger's sides of a passenger compartment in motor (passenger) cars
DE19653256A1 (en) * 1996-12-20 1998-06-25 Asea Brown Boveri Binary / polynary condensation capacitor
FR2780152B1 (en) * 1998-06-23 2001-03-30 Valeo Climatisation HEAT EXCHANGER FOR MOTOR VEHICLE, AND MANUFACTURING METHOD THEREOF
DE19833845A1 (en) * 1998-07-28 2000-02-03 Behr Gmbh & Co Heat exchanger tube block and multi-chamber flat tube that can be used for this
DE19911334A1 (en) * 1999-03-15 2000-09-21 Behr Gmbh & Co Collecting tube for a heat exchanger and manufacturing process therefor
DE19918617C2 (en) * 1999-04-23 2002-01-17 Valeo Klimatechnik Gmbh Gas cooler for a supercritical CO¶2¶ high pressure refrigerant circuit of an automotive air conditioning system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19649129A1 (en) 1996-11-27 1998-05-28 Behr Gmbh & Co Flat tube heat exchanger with shaped flat tube end section
EP0992757A2 (en) 1998-10-08 2000-04-12 Behr GmbH & Co. Header tube for heat exchanger
DE19912381A1 (en) 1999-03-19 2000-09-21 Behr Gmbh & Co Condenser, esp. for vehicle air conditioning system, has meandering coolant flow path rising up to open into collector with stand pipe opening into chamber separated from collector interior
DE19957945A1 (en) 1999-12-02 2001-06-07 Behr Gmbh & Co Condenser for refrigerant circuit in vehicle air-conditioning unit, has collection pipes at ends of horizontal pipes divided to form multiflow, with hot gas, condensation and lower cooling areas

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005015110A1 (en) * 2003-08-07 2005-02-17 Norsk Hydro Asa Heat exchanger comprising two manifolds
WO2005022066A1 (en) * 2003-08-26 2005-03-10 Daimlerchrysler Ag Heat exchanger comprising an integrated supply and discharge
EP1762803A1 (en) * 2005-09-13 2007-03-14 Valeo Systemes Thermiques Integrated assembly for air conditioning circuit with a supercritical refrigerant.
FR2890726A1 (en) * 2005-09-13 2007-03-16 Valeo Systemes Thermiques INTEGRATED ASSEMBLY FOR AIR CONDITIONING CIRCUIT OPERATING WITH SUPERCRITICAL REFRIGERANT FLUID
CN101900460A (en) * 2010-07-02 2010-12-01 海信科龙电器股份有限公司 Parallel flow evaporator and heat pump air conditioner
CN104677170A (en) * 2011-01-21 2015-06-03 大金工业株式会社 Heat exchanger and air conditioner
CN102252559A (en) * 2011-05-20 2011-11-23 广东美的制冷设备有限公司 Microchannel heat exchanger and manufacturing method thereof
JP2015055405A (en) * 2013-09-11 2015-03-23 ダイキン工業株式会社 Heat exchanger and air conditioner
US11841193B2 (en) 2015-11-30 2023-12-12 Carrier Corporation Heat exchanger for residential HVAC applications
CN106767012A (en) * 2016-12-22 2017-05-31 青岛海尔空调电子有限公司 A kind of micro-channel heat exchanger and the air-conditioner using the micro-channel heat exchanger

Also Published As

Publication number Publication date
DE50205688D1 (en) 2006-04-13
ATE316646T1 (en) 2006-02-15
EP1298405B1 (en) 2006-01-25
ES2257495T3 (en) 2006-08-01
DE10147521A1 (en) 2003-04-10
EP1298405A3 (en) 2003-06-04

Similar Documents

Publication Publication Date Title
DE69219107T2 (en) Evaporator
DE60116922T2 (en) capacitor
DE69031047T2 (en) Evaporators for coolers in motor vehicles
EP0789213B1 (en) Heat exchanger for automotive vehicle
DE102006018681A1 (en) Heat exchanger for a vehicle
DE19719251A1 (en) Distribution / collection box of an at least double-flow evaporator of a motor vehicle air conditioning system
EP1298405B1 (en) Heat exchanger, particularly gas cooler for CO2-air conditioner
EP1460363B1 (en) Evaporator
DE4305060C2 (en) Soldered heat exchanger, especially evaporator
DE102007031824A1 (en) Heat exchanger tube comprises first thin sheet of material partially forming broad and narrow sides of tube body and partially enclosing an interior space, and second sheet of material partially forming fin brazed to tube body
EP2064510B1 (en) Two-pass heat exchanger with integrated bypass channel
EP1643202B1 (en) Heat exchanger
DE10257767A1 (en) Heat exchanger for condenser or gas cooler for air conditioning installations has two rows of channels for coolant with manifolds at ends and has ribs over which air can flow
DE102004002252B4 (en) Heat exchanger for vehicles
EP2187157B1 (en) Heat exchanger for heating a motor vehicle
WO2005100895A1 (en) Heat exchanger for motor vehicles
DE19957945B4 (en) Condenser with subcooling line
EP1684032B1 (en) Condenser for an air conditioning device, especially for a vehicle
DE4330214B4 (en) heat exchangers
DE4327213C2 (en) Recuperative heat exchangers, in particular coolers for motor vehicles
DE102006061440A1 (en) Heat exchanger e.g. cooling liquid heat exchanger for use in motor vehicle, has tubes interacting with openings of collecting tank and header tank such that end of each tube has contour
DE102004001786A1 (en) Heat exchanger, especially for supercritical refrigeration cycle
DE102004003789A1 (en) heat exchangers
DE102005048227A1 (en) Radiator, cooling circuit, air conditioner for a motor vehicle air conditioning system and air conditioning for a motor vehicle
EP1166025B1 (en) Multiblock heat-transfer system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20030630

17Q First examination report despatched

Effective date: 20031010

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AXX Extension fees paid

Extension state: SI

Payment date: 20031204

Extension state: RO

Payment date: 20031204

Extension state: LV

Payment date: 20031204

Extension state: AL

Payment date: 20031204

Extension state: MK

Payment date: 20031204

Extension state: LT

Payment date: 20031204

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BEHR GMBH & CO. KG

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060125

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060125

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060125

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060125

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50205688

Country of ref document: DE

Date of ref document: 20060413

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060425

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060425

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060425

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060413

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060626

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2257495

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20061026

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060823

BERE Be: lapsed

Owner name: BEHR G.M.B.H. & CO. KG

Effective date: 20060831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060426

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060823

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060125

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20080827

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060125

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20080811

Year of fee payment: 7

Ref country code: IT

Payment date: 20080826

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080826

Year of fee payment: 7

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090823

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090823

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090824

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090823

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20100920

Year of fee payment: 9

Ref country code: FR

Payment date: 20100901

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090823

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090824

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20120430

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50205688

Country of ref document: DE

Effective date: 20120301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120301