EP0798519A1 - Condenser with integrated receiver for cooling circuit - Google Patents

Condenser with integrated receiver for cooling circuit Download PDF

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Publication number
EP0798519A1
EP0798519A1 EP97103937A EP97103937A EP0798519A1 EP 0798519 A1 EP0798519 A1 EP 0798519A1 EP 97103937 A EP97103937 A EP 97103937A EP 97103937 A EP97103937 A EP 97103937A EP 0798519 A1 EP0798519 A1 EP 0798519A1
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EP
European Patent Office
Prior art keywords
longitudinal
housing
condenser according
tubular wall
wall
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.)
Withdrawn
Application number
EP97103937A
Other languages
German (de)
French (fr)
Inventor
Zaiqian Hu
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.)
Valeo Thermique Moteur SA
Original Assignee
Valeo Thermique Moteur SA
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 Valeo Thermique Moteur SA filed Critical Valeo Thermique Moteur SA
Publication of EP0798519A1 publication Critical patent/EP0798519A1/en
Withdrawn legal-status Critical Current

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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
    • F28F9/0202—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
    • F28F9/0207—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions the longitudinal or transversal partitions being separate elements attached to header boxes
    • 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
    • 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
    • F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
    • 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
    • F28F9/0243—Header boxes having a circular cross-section
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49389—Header or manifold making

Definitions

  • the invention relates to a condenser with integrated tank, suitable for being part of a refrigeration circuit, for example of an air conditioning installation of a motor vehicle.
  • It relates more particularly to a condenser for a refrigeration circuit traversed by a refrigerant, comprising a bundle of finned tubes mounted between two manifolds, and in which one of the manifolds communicates with a tank.
  • the refrigerant in superheated vapor phase is sent, via a compressor, to a condenser in which it is successively cooled or "desuperheated”, condensed into a hot liquid phase, then "under -chilled "in a cold liquid phase.
  • the refrigerant, condensed and cooled is sent, via an expansion valve, to an evaporator where it exchanges heat with an air flow to be sent into the passenger compartment of the vehicle.
  • the refrigerant is transformed into the vapor phase, while the air flow is cooled to supply conditioned air.
  • the refrigerant in vapor phase leaves the evaporator to reach the compressor, and so on.
  • the reservoir which is usually connected at the outlet of the condenser, is produced in the form of a separate container.
  • the object of the invention is in particular to overcome the aforementioned drawbacks.
  • the manifold and the reservoir are delimited by the same tubular casing with tubular wall, which is divided by a longitudinal partition into a collecting compartment (forming the manifold ) into which open the bundle tubes and a reservoir compartment (forming a reservoir) which communicates with the collecting compartment through orifices provided in the longitudinal partition, and in which the longitudinal separation partition has a first longitudinal edge engaged in a slow longitudinal of the tubular wall of the housing and a second longitudinal edge pressed against the tubular wall of the housing, which allows a solder connection between the housing and the longitudinal partition wall.
  • the manifold and the reservoir constitute the two adjacent compartments of the same tubular housing, which in particular makes it possible to reduce the overall size of the manifold-reservoir assembly and to simplify the mounting operations.
  • the division of the tubular housing is carried out simply by a longitudinal partition of separation (also called “separator”), which is connected by brazing to the tubular wall of the housing.
  • the tubular wall of the housing is of generally cylindrical shape. This configuration is optimal for reducing the size of the housing while ensuring maximum resistance to the pressure of the refrigerant. It can be a cylindrical shape with a circular section or with a non-circular section, for example oval.
  • the bundle tubes extend in a non-radial direction relative to the center of the cylindrical section of the tubular wall of the housing.
  • center designates the geometric or mathematical center in the broad sense of the section of the housing, whether circular or non-circular. This allows for easier communication between
  • the tubes and the collecting compartment which should preferably have a volume less than that of the tank compartment.
  • the longitudinal partition wall comprises two planar walls forming an angle between them and comprising respectively the first longitudinal edge and the second longitudinal edge.
  • this longitudinal partition can be easily obtained by longitudinal folding of a metal strip to form a kind of angle.
  • the angle formed between the two flat walls of the longitudinal partition is approximately equal to 90 °.
  • This preferred embodiment of the longitudinal partition is particularly suitable for the case where the wall tubular housing is circular cylindrical in shape. It is then advantageous for the apex of the angle formed between the two flat walls of the longitudinal partition to be situated practically in the center of the circular section of the tubular wall. It follows that the respective cross sections of the collecting compartment and the tank compartment correspond substantially to a quarter and three-quarters of the total cross section of the tubular wall.
  • the condenser comprises transverse partitions which extend in the collecting compartment.
  • each transverse partition has a first part which constitutes the partition itself and which corresponds to the cross section of the collecting compartment and a second part which partially corresponds to the cross section of the tank compartment, these two parts forming a notch between them. suitable for engaging in a corresponding notch formed from the longitudinal edge of the longitudinal partition.
  • the first part of the transverse partition constitutes the partition itself, that is to say the useful part.
  • the second part contributes, on the one hand to delimit the aforementioned notch and, on the other hand, to maintain the longitudinal partition inside the housing.
  • transverse partitions are first fitted onto the longitudinal partition, by cooperation of their respective notches, then the assembly is threaded axially inside the housing. This introduction is carried out so that the first longitudinal edge of the longitudinal partition engages in the longitudinal section of the wall of the housing.
  • the tubular wall of the housing is obtained by winding a metal strip so as to have two longitudinal edges which delimit between them the longitudinal slot of the housing.
  • the longitudinal partition, as well as the transverse partitions are metallic elements coated with a solder plating.
  • the condenser shown in Figure 1 comprises a bundle 10 formed of a multiplicity of flat tubes 12 between which are placed spacers 14 of generally corrugated shape, forming heat exchange fins.
  • the bundle 10 is mounted between a tubular manifold 16 and a tubular housing 18.
  • the manifold 16 and the tubular housing 18 are of circular section and have axes parallel to each other.
  • the manifold 16 includes an inlet tubular 20 and an outlet tubing 22 for a refrigerant.
  • the refrigerant in the form of superheated vapor phase is sent, via a compressor (not shown), to the pipe 20.
  • This fluid is successively cooled or "desuperheated”, condensed into a hot liquid phase, then "under -chilled "in a cold liquid phase, before leaving the condenser via the outlet pipe 22.
  • FIGS. 2 to 4 describe the structure of the tubular housing 18.
  • the housing 18 comprises a tubular wall 24 which has a cylindrical shape of revolution around an axis XX and therefore a circular cross section whose center passes through the axis XX.
  • the wall 24 is obtained by rolling a metal strip, for example made of aluminum or aluminum alloy, so as to provide two longitudinal edges 26 and 28 which delimit between them a longitudinal slot 30 which extends parallel to the generatrices of the wall 24 and which has a width L ( Figure 2).
  • the housing 18 is intended to receive internally a longitudinal partition wall 32 which is shown alone in FIG. 3.
  • This longitudinal wall is obtained by folding a metal strip so as to form two plane walls 34 and 36 forming an angle between them To which, in the example, is substantially equal to 90 °.
  • the walls 34 and 36 are connected to each other by a rounded 38.
  • the angle A has a virtual vertex S.
  • the walls 34 and 36 respectively have a first longitudinal edge 40 and a second longitudinal edge 42.
  • the wall 34 has at least two communication holes 44, only one of which is visible in FIG. 3.
  • the partition 32 has a thickness E slightly less than the width L of the slot 30.
  • the partition 32 is intended to be threaded inside the tubular wall 24, so that the longitudinal edge 40 comes to engage in the slot 30 and that the longitudinal edge 42 comes to bear against the inside of the wall tubular 24, as can be seen in FIG. 4.
  • the partition 32 then delimits in the housing 18 a collecting compartment 46 and a reservoir compartment 48.
  • the top S of the transverse partition is close to the 'axis XX.
  • the cross section of the collecting compartment 46 and that of the tank compartment 48 correspond respectively to a quarter and three-quarters of the total cross section of the tubular wall 24. It is indeed advantageous that the tank compartment occupies more of the half the total volume of the case.
  • the tubes 12 have ends 50 which are introduced into elongated holes 52 formed in the thickness of the tubular wall 24 and in the region corresponding to the collecting compartment 46.
  • the tubes 12 have respective axes YY which extend in a non-radial direction relative to the center of the circular section of the wall 24, and this to facilitate better implantation of the tubes taking into account the configuration of the collecting compartment 46.
  • the compartments 46 and 48 communicate with each other through the aforementioned holes 44.
  • the housing 18 further comprises several transverse partitions 54 as shown in FIG. 5. These partitions here have approximately the shape of a circular sector limited by a circular edge 56 of radius adapted to the interior radius of the tubular wall 24 and extending over three-quarters of a circumference. This partition is further delimited by two radial edges 58 and 60 which form a right angle between them.
  • the partition 54 comprises a first part 62 which extends over a quarter of circumference up to a notch 64 and a second part 66 which extends over a half-circumference between the notch 64 and the edge 58.
  • Part 62 has a shape adapted to that of the cross section of the collecting compartment 46 and therefore constitutes the partition itself, or useful part.
  • the part 66 is intended to bear against the tubular wall 24, without acting as a partition.
  • the longitudinal partition 32 comprises a multiplicity of notches 68 which are intended to cooperate each with a notch 64 of a transverse partition 54.
  • the partitions 54 can be fitted laterally on the longitudinal partition 32, so that the notches 64 correspond respectively with the notches 68.
  • an assembly is formed as shown in FIG. 7. This assembly can then be threaded inside the tubular wall 24, so that the longitudinal edge 40 of the longitudinal partition 32 comes to slide in the slot 30 and that the longitudinal edge 42 of the longitudinal partition 32 automatically bears against the inside of the tubular wall 24. It is thus ensured that the longitudinal partition 32 and that the transverse partitions 54 are perfectly in position.
  • the opposite ends of the tubes 12 can in turn be introduced into suitable holes in the wall of the manifold 16.
  • the condenser of FIGS. 8 and 9 is similar to that of FIG. 1.
  • the housing 18 houses a longitudinal partition 32 provided with two communication holes 44 and two transverse partitions 54 and it is closed by two end plates 70 and 72.
  • the manifold 16 houses two transverse partitions 74 and 76 and it is closed by two end plates 78 and 80. As a result, the refrigerant can circulate in the condenser in several successive passes.
  • the various parts making up the condenser in particular the housing 18, the longitudinal partition 32 and the transverse partitions 54, are coated with a solder plating.
  • the latter can be placed in an appropriate oven for brazing.
  • the invention thus makes it possible to produce a condenser in which the tank and one of the manifolds are delimited by the same compact structure and whose assembly can be easily obtained by soldering.
  • the invention also makes it possible to solve the problem of setting up transverse partitions which usually requires delicate crimping operations.
  • the condenser of the invention allows different types of circulation of the refrigerant. It allows in particular the refrigerant to enter and leave the tank before being sub-cooled in the condenser, or even to leave the condenser before entering and leaving the tank.
  • the invention is particularly intended for condensers of air conditioning systems of motor vehicles.

Abstract

Parallel tubes (12), with heat-dissipating fins, extend between two tubular collectors receiving (52) the tube ends (50). One collector (18) is internally divided into a greater volume (48), functioning as a reservoir, and a lesser (46), connected to the tube ends. Refrigerant enters and leaves by the other collector. The combined collector/reservoir has a rolled cylindrical aluminium or alloy sheet (24), its longitudinal edges, slightly apart, forming a slot (40). The partition plate (38), bent at e.g. 90 degrees, has one wing (34), containing communicating passages (44) entering the slot; the other (36), touching (42) the shell interior, is notched to accept transverse flow-control plates. All contact surfaces, coated with brazing compound, are united after assembly by heating in an oven.

Description

L'invention concerne un condenseur à réservoir intégré, propre à faire partie d'un circuit de réfrigération, par exemple d'une installation de climatisation de véhicule automobile.The invention relates to a condenser with integrated tank, suitable for being part of a refrigeration circuit, for example of an air conditioning installation of a motor vehicle.

Elle concerne plus particulièrement un condenseur pour un circuit de réfrigération parcouru par un fluide frigorigène, comprenant un faisceau de tubes à ailettes monté entre deux boîtes collectrices, et dans lequel l'une des boîtes collectrices communique avec un réservoir.It relates more particularly to a condenser for a refrigeration circuit traversed by a refrigerant, comprising a bundle of finned tubes mounted between two manifolds, and in which one of the manifolds communicates with a tank.

Dans un tel circuit de réfrigération, le fluide frigorigène en phase vapeur surchauffée est envoyé, par l'intermédiaire d'un compresseur, vers un condenseur dans lequel il est successivement refroidi ou "désurchauffé", condensé en une phase liquide chaude, puis "sous-refroidi" en une phase liquide froide.In such a refrigeration circuit, the refrigerant in superheated vapor phase is sent, via a compressor, to a condenser in which it is successively cooled or "desuperheated", condensed into a hot liquid phase, then "under -chilled "in a cold liquid phase.

Ensuite, le fluide frigorigène, condensé et refroidi, est envoyé, par l'intermédiaire d'un détendeur, vers un évaporateur où il échange de la chaleur avec un flux d'air à envoyer dans l'habitacle du véhicule. Dans cet évaporateur, le fluide frigorigène est transformé en phase vapeur, tandis que le flux d'air est refroidi pour fournir de l'air climatisé. Le fluide frigorigène en phase vapeur quitte l'évaporateur pour gagner le compresseur, et ainsi de suite.Then, the refrigerant, condensed and cooled, is sent, via an expansion valve, to an evaporator where it exchanges heat with an air flow to be sent into the passenger compartment of the vehicle. In this evaporator, the refrigerant is transformed into the vapor phase, while the air flow is cooled to supply conditioned air. The refrigerant in vapor phase leaves the evaporator to reach the compressor, and so on.

Dans les condenseurs connus de ce type, le réservoir, qui est habituellement relié en sortie du condenseur, est réalisé sous la forme d'un récipient séparé.In known condensers of this type, the reservoir, which is usually connected at the outlet of the condenser, is produced in the form of a separate container.

On connaît, d'après le Brevet français 93 10 325 de la Demanderesse, un condenseur de ce type dans lequel le réservoir est de configuration tubulaire et est accolé à l'une des boîtes collectrices, également de configuration tubulaire, par l'intermédiaire de pattes d'encliquetage.We know from French Patent 93 10 325 of the Applicant, a condenser of this type in which the reservoir is of tubular configuration and is attached to one of the manifolds, also of tubular configuration, by means of snap tabs.

Il est connu également de réaliser un réservoir tubulaire par extrusion et de sertir le réservoir extrudé extérieurement sur une boîte collectrice tubulaire.It is also known to produce a tubular reservoir by extrusion and to crimp the extruded reservoir externally on a tubular manifold.

Ces solutions connues contribuent à augmenter l'encombrement du condenseur et nécessitent par ailleurs des opérations complexes pour réaliser un assemblage mécanique et étanche entre le réservoir et la boîte collectrice avec laquelle il communique.These known solutions contribute to increasing the size of the condenser and also require complex operations to achieve a mechanical and sealed assembly between the tank and the manifold with which it communicates.

Par ailleurs, ces solutions connues ne permettent pas de simplifier le montage de cloisons transversales à l'intérieur de la boîte collectrice.Furthermore, these known solutions do not make it possible to simplify the mounting of transverse partitions inside the manifold.

L'invention a notamment pour but de surmonter les inconvénients précités.The object of the invention is in particular to overcome the aforementioned drawbacks.

Elle propose à cet effet un condenseur du type défini en introduction, dans lequel la boîte collectrice et le réservoir sont délimités par un même boîtier tubulaire à paroi tubulaire, qui est divisé par une cloison longitudinale de séparation en un compartiment collecteur (formant la boîte collectrice) dans lequel débouchent les tubes du faisceau et un compartiment réservoir (formant réservoir) qui communique avec le compartiment collecteur par des orifices ménagés dans la cloison longitudinale de séparation, et dans lequel la cloison longitudinale de séparation comporte un premier bord longitudinal engagé dans une lente longitudinale de la paroi tubulaire du boîtier et un second bord longitudinal appuyé contre la paroi tubulaire du boîtier, ce qui permet une liaison par brasage entre le boîtier et la cloison longitudinale de séparation.To this end, it offers a condenser of the type defined in the introduction, in which the manifold and the reservoir are delimited by the same tubular casing with tubular wall, which is divided by a longitudinal partition into a collecting compartment (forming the manifold ) into which open the bundle tubes and a reservoir compartment (forming a reservoir) which communicates with the collecting compartment through orifices provided in the longitudinal partition, and in which the longitudinal separation partition has a first longitudinal edge engaged in a slow longitudinal of the tubular wall of the housing and a second longitudinal edge pressed against the tubular wall of the housing, which allows a solder connection between the housing and the longitudinal partition wall.

Ainsi, la boîte collectrice et le réservoir constituent les deux compartiments adjacents d'un même boîtier tubulaire, ce qui permet notamment de diminuer l'encombrement global de l'ensemble boîte collectrice-réservoir et de simplifier les opérations de montage.Thus, the manifold and the reservoir constitute the two adjacent compartments of the same tubular housing, which in particular makes it possible to reduce the overall size of the manifold-reservoir assembly and to simplify the mounting operations.

La division du boîtier tubulaire est réalisée simplement par une cloison longitudinale de séparation (encore appelée "séparateur"), qui est liée par brasage à la paroi tubulaire du boîtier.The division of the tubular housing is carried out simply by a longitudinal partition of separation (also called "separator"), which is connected by brazing to the tubular wall of the housing.

Dans une forme de réalisation préférée de l'invention, la paroi tubulaire du boîtier est de forme générale cylindrique. Cette configuration s'avère optimale pour diminuer l'encombrement du boîtier tout en assurant une résistance maximale à la pression du fluide frigorigène. Il peut s'agir d'une forme cylindrique à section circulaire ou à section non-circulaire, par exemple ovale.In a preferred embodiment of the invention, the tubular wall of the housing is of generally cylindrical shape. This configuration is optimal for reducing the size of the housing while ensuring maximum resistance to the pressure of the refrigerant. It can be a cylindrical shape with a circular section or with a non-circular section, for example oval.

Avantageusement, les tubes du faisceau s'étendent dans une direction non radiale par rapport au centre de la section cylindrique de la paroi tubulaire du boîtier. Le terme "centre" désigne le centre géométrique ou mathématique au sens large de la section du boîtier, qu'elle soit circulaire ou non-circulaire. Ceci permet de réaliser une communication plus aisée entreAdvantageously, the bundle tubes extend in a non-radial direction relative to the center of the cylindrical section of the tubular wall of the housing. The term "center" designates the geometric or mathematical center in the broad sense of the section of the housing, whether circular or non-circular. This allows for easier communication between

les tubes et le compartiment collecteur qui doit présenter de préférence un volume inférieur à celui du compartiment réservoir.the tubes and the collecting compartment which should preferably have a volume less than that of the tank compartment.

Selon une autre caractéristique de l'invention, la cloison longitudinale de séparation comprend deux parois planes formant un angle entre elles et comportant respectivement le premier bord longitudinal et le second bord longitudinal.According to another characteristic of the invention, the longitudinal partition wall comprises two planar walls forming an angle between them and comprising respectively the first longitudinal edge and the second longitudinal edge.

Ainsi, cette cloison longitudinale peut être obtenue facilement par pliage longitudinal d'une bande métallique pour former une sorte de cornière.Thus, this longitudinal partition can be easily obtained by longitudinal folding of a metal strip to form a kind of angle.

Avantageusement, l'angle formé entre les deux parois planes de la cloison longitudinale est approximativement égal à 90°.Advantageously, the angle formed between the two flat walls of the longitudinal partition is approximately equal to 90 °.

Cette forme de réalisation préférée de la cloison longitudinale convient tout particulièrement au cas où la paroi tubulaire du boîtier est de forme cylindrique circulaire. Il est alors avantageux que le sommet de l'angle formé entre les deux parois planes de la cloison longitudinale de séparation se situe pratiquement au centre de la section circulaire de la paroi tubulaire. Il en résulte que les sections transversales respectives du compartiment collecteur et du compartiment réservoir correspondent sensiblement à un quart et à trois-quarts de la section transversale totale de la paroi tubulaire.This preferred embodiment of the longitudinal partition is particularly suitable for the case where the wall tubular housing is circular cylindrical in shape. It is then advantageous for the apex of the angle formed between the two flat walls of the longitudinal partition to be situated practically in the center of the circular section of the tubular wall. It follows that the respective cross sections of the collecting compartment and the tank compartment correspond substantially to a quarter and three-quarters of the total cross section of the tubular wall.

Selon une autre caractéristique de l'invention, le condenseur comprend des cloisons transversales qui s'étendent dans le compartiment collecteur.According to another characteristic of the invention, the condenser comprises transverse partitions which extend in the collecting compartment.

De façon avantageuse, chaque cloison transversale comporte une première partie qui constitue la cloison proprement dite et qui correspond à la section transversale du compartiment collecteur et une seconde partie qui correspond partiellement à la section transversale du compartiment réservoir, ces deux parties ménageant entre elles une encoche propre à s'engager dans une encoche correspondante ménagée à partir du bord longitudinal de la cloison longitudinale de séparation.Advantageously, each transverse partition has a first part which constitutes the partition itself and which corresponds to the cross section of the collecting compartment and a second part which partially corresponds to the cross section of the tank compartment, these two parts forming a notch between them. suitable for engaging in a corresponding notch formed from the longitudinal edge of the longitudinal partition.

Seule la première partie de la cloison transversale constitue la cloison proprement dite, c'est-à-dire la partie utile. La deuxième partie contribue, d'une part à délimiter l'encoche précitée et, d'autre part, à maintenir la cloison longitudinale à l'intérieur du boîtier.Only the first part of the transverse partition constitutes the partition itself, that is to say the useful part. The second part contributes, on the one hand to delimit the aforementioned notch and, on the other hand, to maintain the longitudinal partition inside the housing.

Ainsi, les cloisons transversales sont d'abord emboîtées sur la cloison longitudinale, par coopération de leurs encoches respectives, puis l'ensemble est enfilé axialement à l'intérieur du boîtier. Cette introduction s'effectue de telle sorte que le premier bord longitudinal de la cloison longitudinale s'engage dans la lente longitudinale de la paroi du boîtier.Thus, the transverse partitions are first fitted onto the longitudinal partition, by cooperation of their respective notches, then the assembly is threaded axially inside the housing. This introduction is carried out so that the first longitudinal edge of the longitudinal partition engages in the longitudinal section of the wall of the housing.

Par cette conception, on est assuré que, l'ensemble une fois enfilé dans la boîte, la cloison longitudinale se trouve correctement mise en place et que les cloisons transversales viennent en appui contre la paroi tubulaire du boîtier pour former une pluralité de chambres dans le compartiment collecteur et permettre ultérieurement une circulation du fluide frigorigène en plusieurs passes.By this design, it is ensured that, once inserted in the box, the longitudinal partition is correctly positioned and that the transverse partitions come to bear against the tubular wall of the housing to form a plurality of chambers in the collecting compartment and subsequently allow a circulation of the refrigerant in several passes.

Selon une autre caractéristique de l'invention, la paroi tubulaire du boîtier est obtenue par enroulement d'une bande métallique de manière à présenter deux bords longitudinaux qui délimitent entre eux la fente longitudinale du boîtier.According to another characteristic of the invention, the tubular wall of the housing is obtained by winding a metal strip so as to have two longitudinal edges which delimit between them the longitudinal slot of the housing.

Selon encore une autre caractéristique de l'invention, la cloison longitudinale, ainsi que les cloisons transversales, sont des éléments métalliques revêtus d'un placage de brasure.According to yet another characteristic of the invention, the longitudinal partition, as well as the transverse partitions, are metallic elements coated with a solder plating.

Dans la description qui suit, faite seulement à titre d'exemple, on se réfère au dessin annexé, sur lequel :

  • la figure 1 est une vue en élévation d'un condenseur selon l'invention;
  • la figure 2 est une vue en coupe partielle, à échelle agrandie, du condenseur de la figure 1, faisant apparaître la structure du boîtier;
  • la figure 3 est une vue d'extrémité de la cloison longitudinale destinée à équiper le boîtier de la figure 2;
  • la figure 4 est une vue analogue à celle de la figure 2 après mise en place de la cloison longitudinale de la figure 3;
  • la figure 5 est une vue en élévation d'une cloison transversale destinée à être emboîtée latéralement dans la cloison longitudinale de la figure 3 et à être placée dans le boîtier des figures 2 et 4;
  • la figure 6 est une vue de côté, à échelle agrandie, de la cloison longitudinale de la figure 3;
  • la figure 7 est une vue d'extrémité de la cloison longitudinale prééquipée de cloisons transversales;
  • la figure 8 est une vue en élévation d'un condenseur analogue à celui de la figure 1; et
  • la figure 9 est une vue en coupe selon la ligne IX-IX de la figure 8.
In the description which follows, given solely by way of example, reference is made to the appended drawing, in which:
  • Figure 1 is an elevational view of a condenser according to the invention;
  • Figure 2 is a partial sectional view, on an enlarged scale, of the condenser of Figure 1, showing the structure of the housing;
  • Figure 3 is an end view of the longitudinal wall intended to equip the housing of Figure 2;
  • Figure 4 is a view similar to that of Figure 2 after installation of the longitudinal wall of Figure 3;
  • Figure 5 is an elevational view of a transverse partition intended to be fitted laterally in the longitudinal partition of Figure 3 and to be placed in the housing of Figures 2 and 4;
  • Figure 6 is a side view, on an enlarged scale, of the longitudinal wall of Figure 3;
  • FIG. 7 is an end view of the longitudinal partition pre-equipped with transverse partitions;
  • Figure 8 is an elevational view of a condenser similar to that of Figure 1; and
  • FIG. 9 is a sectional view along the line IX-IX of FIG. 8.

Le condenseur représenté à la figure 1 comprend un faisceau 10 formé d'une multiplicité de tubes plats 12 entre lesquels sont placés des intercalaires 14 de forme générale ondulée, formant ailettes d'échange de chaleur.The condenser shown in Figure 1 comprises a bundle 10 formed of a multiplicity of flat tubes 12 between which are placed spacers 14 of generally corrugated shape, forming heat exchange fins.

Le faisceau 10 est monté entre une boîte collectrice tubulaire 16 et un boîtier tubulaire 18. La boîte collectrice 16 et le boîtier tubulaire 18 sont à section circulaire et présentent des axes parallèles entre eux. La boîte collectrice 16 comprend une tubulaire d'entrée 20 et une tubulure de sortie 22 pour un fluide frigorigène. Le fluide frigorigène sous forme de phase vapeur surchauffée est envoyé, par l'intermédiaire d'un compresseur (non représenté), à la tubulure 20. Ce fluide est successivement refroidi ou "désurchauffé", condensé en une phase liquide chaude, puis "sous-refroidi" en une phase liquide froide, avant de quitter le condenseur par la tubulure de sortie 22.The bundle 10 is mounted between a tubular manifold 16 and a tubular housing 18. The manifold 16 and the tubular housing 18 are of circular section and have axes parallel to each other. The manifold 16 includes an inlet tubular 20 and an outlet tubing 22 for a refrigerant. The refrigerant in the form of superheated vapor phase is sent, via a compressor (not shown), to the pipe 20. This fluid is successively cooled or "desuperheated", condensed into a hot liquid phase, then "under -chilled "in a cold liquid phase, before leaving the condenser via the outlet pipe 22.

On se réfère maintenant plus particulièrement aux figures 2 à 4 pour décrire la structure du boîtier tubulaire 18.Reference is now made more particularly to FIGS. 2 to 4 to describe the structure of the tubular housing 18.

Le boîtier 18 comporte une paroi tubulaire 24 qui présente une forme cylindrique de révolution autour d'un axe X-X et donc une section transversale circulaire dont le centre passe par l'axe X-X.The housing 18 comprises a tubular wall 24 which has a cylindrical shape of revolution around an axis XX and therefore a circular cross section whose center passes through the axis XX.

La paroi 24 est obtenue par roulage d'une bande métallique, par exemple en aluminium ou alliage d'aluminium, de manière à ménager deux bords longitudinaux 26 et 28 qui délimitent entre eux une fente longitudinale 30 qui s'étend parallèlement aux génératrices de la paroi 24 et qui possède une largeur L (figure 2).The wall 24 is obtained by rolling a metal strip, for example made of aluminum or aluminum alloy, so as to provide two longitudinal edges 26 and 28 which delimit between them a longitudinal slot 30 which extends parallel to the generatrices of the wall 24 and which has a width L (Figure 2).

Le boîtier 18 est destiné à recevoir intérieurement une cloison longitudinale de séparation 32 qui est représentée seule sur la figure 3. Cette cloison longitudinale est obtenue par pliage d'une bande métallique de manière à former deux parois planes 34 et 36 formant entre elles un angle A qui, dans l'exemple, est sensiblement égal à 90°. Les parois 34 et 36 sont reliées entre elles par un arrondi 38. Il en résulte que l'angle A présente un sommet virtuel S. Par ailleurs, les parois 34 et 36 comportent respectivement un premier bord longitudinal 40 et un second bord longitudinal 42. La paroi 34 comporte au moins deux trous de communication 44 dont un seul est visible sur la figure 3. La cloison 32 possède une épaisseur E légèrement inférieure à la largeur L de la fente 30.The housing 18 is intended to receive internally a longitudinal partition wall 32 which is shown alone in FIG. 3. This longitudinal wall is obtained by folding a metal strip so as to form two plane walls 34 and 36 forming an angle between them To which, in the example, is substantially equal to 90 °. The walls 34 and 36 are connected to each other by a rounded 38. As a result, the angle A has a virtual vertex S. Furthermore, the walls 34 and 36 respectively have a first longitudinal edge 40 and a second longitudinal edge 42. The wall 34 has at least two communication holes 44, only one of which is visible in FIG. 3. The partition 32 has a thickness E slightly less than the width L of the slot 30.

La cloison 32 est destinée à être enfilée à l'intérieur de la paroi tubulaire 24, de sorte que le bord longitudinal 40 vienne s'engager dans la fente 30 et que le bord longitudinal 42 vienne s'appuyer contre l'intérieur de la paroi tubulaire 24, comme on le voit sur la figure 4. La cloison de séparation 32 délimite alors dans le boîtier 18 un compartiment collecteur 46 et un compartiment réservoir 48. Dans la configuration représentée, le sommet S de la cloison transversale se trouve proche de l'axe X-X.The partition 32 is intended to be threaded inside the tubular wall 24, so that the longitudinal edge 40 comes to engage in the slot 30 and that the longitudinal edge 42 comes to bear against the inside of the wall tubular 24, as can be seen in FIG. 4. The partition 32 then delimits in the housing 18 a collecting compartment 46 and a reservoir compartment 48. In the configuration shown, the top S of the transverse partition is close to the 'axis XX.

Il en résulte que la section transversale du compartiment collecteur 46 et celle du compartiment réservoir 48 correspondent respectivement au quart et aux trois-quarts de la section transversale totale de la paroi tubulaire 24. Il est en effet avantageux que le compartiment réservoir occupe plus de la moitié du volume total du boîtier.It follows that the cross section of the collecting compartment 46 and that of the tank compartment 48 correspond respectively to a quarter and three-quarters of the total cross section of the tubular wall 24. It is indeed advantageous that the tank compartment occupies more of the half the total volume of the case.

Comme montré aux figures 2 et 4, les tubes 12 ont des extrémités 50 qui sont introduites dans des trous allongés 52 ménagés dans l'épaisseur de la paroi tubulaire 24 et dans la région correspondant au compartiment collecteur 46. Les tubes 12 ont des axes respectifs Y-Y qui s'étendent dans une direction non radiale par rapport au centre de la section circulaire de la paroi 24, et cela pour faciliter une meilleure implantation des tubes compte tenu de la configuration du compartiment collecteur 46.As shown in Figures 2 and 4, the tubes 12 have ends 50 which are introduced into elongated holes 52 formed in the thickness of the tubular wall 24 and in the region corresponding to the collecting compartment 46. The tubes 12 have respective axes YY which extend in a non-radial direction relative to the center of the circular section of the wall 24, and this to facilitate better implantation of the tubes taking into account the configuration of the collecting compartment 46.

Les compartiments 46 et 48 communiquent entre eux par les trous 44 précités.The compartments 46 and 48 communicate with each other through the aforementioned holes 44.

Le boîtier 18 comprend en outre plusieurs cloisons transversales 54 comme montré à la figure 5. Ces cloisons ont ici approximativement la forme d'un secteur circulaire limité par un bord circulaire 56 de rayon adapté au rayon intérieur de la paroi tubulaire 24 et s'étendant sur trois-quarts d'une circonférence. Cette cloison est en outre délimitée par deux bords radiaux 58 et 60 qui font entre eux un angle droit. La cloison 54 comporte une première partie 62 qui s'étend sur un quart de circonférence jusqu'à une encoche 64 et une seconde partie 66 qui s'étend sur une demi-circonférence entre l'encoche 64 et le bord 58.The housing 18 further comprises several transverse partitions 54 as shown in FIG. 5. These partitions here have approximately the shape of a circular sector limited by a circular edge 56 of radius adapted to the interior radius of the tubular wall 24 and extending over three-quarters of a circumference. This partition is further delimited by two radial edges 58 and 60 which form a right angle between them. The partition 54 comprises a first part 62 which extends over a quarter of circumference up to a notch 64 and a second part 66 which extends over a half-circumference between the notch 64 and the edge 58.

La partie 62 possède une forme adaptée à celle de la section transversale du compartiment collecteur 46 et constitue donc la cloison proprement dite, ou partie utile. Par contre, la partie 66 est destinée à venir en appui contre la paroi tubulaire 24, sans faire office de cloison.Part 62 has a shape adapted to that of the cross section of the collecting compartment 46 and therefore constitutes the partition itself, or useful part. On the other hand, the part 66 is intended to bear against the tubular wall 24, without acting as a partition.

Comme on peut le voir sur la figure 6, la cloison longitudinale 32 comporte une multiplicité d'encoches 68 qui sont destinées à coopérer chacune avec une encoche 64 d'une cloison transversale 54.As can be seen in FIG. 6, the longitudinal partition 32 comprises a multiplicity of notches 68 which are intended to cooperate each with a notch 64 of a transverse partition 54.

Ainsi, les cloisons 54 peuvent être emboîtées latéralement sur la cloison longitudinale 32, en sorte que les encoches 64 correspondent respectivement avec les encoches 68. Lorsque l'emboîtement a été réalisé, on forme un ensemble tel que représenté à la figure 7. Cet ensemble peut être ensuite enfilé à l'intérieur de la paroi tubulaire 24, de sorte que le bord longitudinal 40 de la cloison longitudinale 32 vienne glisser dans la fente 30 et que le bord longitudinal 42 de la cloison longitudinale 32 vienne automatiquement en appui contre l'intérieur de la paroi tubulaire 24. On est ainsi assuré que la cloison longitudinale 32 et que les cloisons transversales 54 se trouvent parfaitement en position.Thus, the partitions 54 can be fitted laterally on the longitudinal partition 32, so that the notches 64 correspond respectively with the notches 68. When the interlocking has been achieved, an assembly is formed as shown in FIG. 7. This assembly can then be threaded inside the tubular wall 24, so that the longitudinal edge 40 of the longitudinal partition 32 comes to slide in the slot 30 and that the longitudinal edge 42 of the longitudinal partition 32 automatically bears against the inside of the tubular wall 24. It is thus ensured that the longitudinal partition 32 and that the transverse partitions 54 are perfectly in position.

Cette opération étant réalisée, il suffit ensuite d'introduire les extrémités respectives 50 des tubes 12 dans les trous 52 de la paroi 24.This operation being carried out, it then suffices to introduce the respective ends 50 of the tubes 12 into the holes 52 of the wall 24.

Les extrémités opposées des tubes 12 peuvent être à leur tour introduites dans des trous appropriés que comporte la paroi de la boîte collectrice 16.The opposite ends of the tubes 12 can in turn be introduced into suitable holes in the wall of the manifold 16.

Le condenseur des figures 8 et 9 est analogue à celui de la figure 1. Le boîtier 18 loge une cloison longitudinale 32 munie de deux trous de communication 44 et deux cloisons transversales 54 et il est fermé par deux plaques d'extrémité 70 et 72. La boîte collectrice 16 loge deux cloisons transversales 74 et 76 et elle est fermée par deux plaques d'extrémité 78 et 80. Il en résulte que le fluide frigorigène peut circuler dans le condenseur en plusieurs passes successives.The condenser of FIGS. 8 and 9 is similar to that of FIG. 1. The housing 18 houses a longitudinal partition 32 provided with two communication holes 44 and two transverse partitions 54 and it is closed by two end plates 70 and 72. The manifold 16 houses two transverse partitions 74 and 76 and it is closed by two end plates 78 and 80. As a result, the refrigerant can circulate in the condenser in several successive passes.

Les différentes pièces composant le condenseur, notamment le boîtier 18, la cloison longitudinale 32 et les cloisons transversales 54, sont revêtues d'un placage de brasure.The various parts making up the condenser, in particular the housing 18, the longitudinal partition 32 and the transverse partitions 54, are coated with a solder plating.

Il en résulte que, après assemblages des différents éléments composant le condenseur, celui-ci peut être placé dans un four approprié pour réaliser le brasage.As a result, after assembling the various elements making up the condenser, the latter can be placed in an appropriate oven for brazing.

L'invention permet ainsi de réaliser un condenseur dans lequel le réservoir et l'une des boîtes collectrices sont délimités par un même boîtier de structure compacte et dont l'assemblage peut être facilement obtenu par brasage.The invention thus makes it possible to produce a condenser in which the tank and one of the manifolds are delimited by the same compact structure and whose assembly can be easily obtained by soldering.

Il est à noter que l'invention permet de résoudre également le problème de la mise en place des cloisons transversales qui nécessite habituellement des opérations délicates de sertissage.It should be noted that the invention also makes it possible to solve the problem of setting up transverse partitions which usually requires delicate crimping operations.

Le condenseur de l'invention permet différents types de circulation du fluide frigorigène. Il permet notamment au fluide frigorigène d'entrer et de sortir du réservoir avant d'être sous-refroidi dans le condenseur, ou encore de sortir du condenseur avant d'entrer et de sortie du réservoir.The condenser of the invention allows different types of circulation of the refrigerant. It allows in particular the refrigerant to enter and leave the tank before being sub-cooled in the condenser, or even to leave the condenser before entering and leaving the tank.

L'invention est destinée tout particulièrement aux condenseurs des installations de climatisation de véhicules automobiles.The invention is particularly intended for condensers of air conditioning systems of motor vehicles.

Claims (10)

Condenseur pour un circuit de réfrigération parcouru par un fluide frigorigène, comprenant un faisceau de tubes à ailettes monté entre deux boîtes collectrices, et dans lequel l'une des boîtes collectrices communique avec un réservoir,
caractérisé en ce que la boîte collectrice (46) et le réservoir (48) sont délimités par un même boîtier (18) à paroi tubulaire (24), qui est divisé par une cloison longitudinale de séparation (32) en un compartiment collecteur (46) dans lequel débouchent les tubes (12) du faisceau et un compartiment réservoir (48) qui communique avec le compartiment collecteur par des orifices (44) ménagés dans la cloison longitudinale de séparation (32), et en ce que la cloison longitudinale de séparation (32) comporte un premier bord longitudinal (40) engagé dans une fente longitudinale (30) de la paroi tubulaire (24) du boîtier (18) et un second bord longitudinal (42) appuyé contre la paroi tubulaire (24) du boîtier (18), pour permettre une liaison par brasage entre le boîtier (18) et la cloison longitudinale de séparation (32).Condenser for a refrigeration circuit traversed by a refrigerant, comprising a bundle of finned tubes mounted between two manifolds, and in which one of the manifolds communicates with a reservoir,
characterized in that the manifold (46) and the reservoir (48) are delimited by the same casing (18) with tubular wall (24), which is divided by a longitudinal partition wall (32) into a collecting compartment (46 ) into which open the tubes (12) of the bundle and a tank compartment (48) which communicates with the collecting compartment by orifices (44) formed in the longitudinal partition wall (32), and in that the longitudinal partition wall (32) has a first longitudinal edge (40) engaged in a longitudinal slot (30) of the tubular wall (24) of the housing (18) and a second longitudinal edge (42) pressed against the tubular wall (24) of the housing ( 18), to allow a connection by soldering between the housing (18) and the longitudinal partition wall (32). Condenseur selon la revendication 1, caractérisé en ce que la paroi tubulaire (24) du boîtier (18) est de forme générale cylindrique.Condenser according to claim 1, characterized in that the tubular wall (24) of the housing (18) is of generally cylindrical shape. Condenseur selon la revendication 2, caractérisé en ce que les tubes (12) du faisceau (10) s'étendent dans une direction (Y-Y) non radiale par rapport au centre (X-X) de la section cylindrique de la paroi tubulaire (24).Condenser according to Claim 2, characterized in that the tubes (12) of the bundle (10) extend in a direction (Y-Y) which is not radial with respect to the center (X-X) of the cylindrical section of the tubular wall (24). Condenseur selon l'une des revendications 1 à 3, caractérisé en ce que la cloison longitudinale de séparation (32) comprend deux parois planes (34, 36) formant un angle (A) entre elles et comportant respectivement le premier bord longitudinal (40) et le second bord longitudinal (42).Condenser according to one of claims 1 to 3, characterized in that the longitudinal partition wall (32) comprises two flat walls (34, 36) forming an angle (A) between them and comprising respectively the first longitudinal edge (40) and the second longitudinal edge (42). Condenseur selon la revendication 4, caractérisé en ce que l'angle (A) formé entre les deux parois planes (34 et 36) de la cloison longitudinale de séparation (32) est approximativement égal à 90°.Condenser according to claim 4, characterized in that the angle (A) formed between the two planar walls (34 and 36) of the longitudinal partition wall (32) is approximately equal to 90 °. Condenseur selon l'une des revendications 2 et 5, prises en combinaison, caractérisé en ce que le sommet (S) de l'angle (A) formé entre les deux parois planes (34, 36) de la cloison longitudinale de séparation (32) est situé pratiquement au centre (X-X) de la section circulaire de la paroi tubulaire (24), en sorte que les sections transversales respectives du compartiment collecteur (46) et du compartiment réservoir (48) correspondent sensiblement à un quart et à trois-quarts de la section transversale totale de la paroi tubulaire (24).Condenser according to one of claims 2 and 5, taken in combination, characterized in that the apex (S) of the angle (A) formed between the two plane walls (34, 36) of the longitudinal partition wall (32 ) is located practically in the center (XX) of the circular section of the tubular wall (24), so that the respective cross sections of the collecting compartment (46) and of the tank compartment (48) correspond substantially to a quarter and three- quarters of the total cross section of the tubular wall (24). Condenseur selon l'une des revendications 1 à 6, caractérisé en ce qu'il comprend en outre des cloisons transversales (54) qui s'étendent dans le compartiment collecteur (46).Condenser according to one of claims 1 to 6, characterized in that it further comprises transverse partitions (54) which extend in the collecting compartment (46). Condenseur selon la revendication 7, caractérisé en ce que chaque cloison transversale (54) comporte une première partie (62) qui constitue la cloison proprement dite et qui correspond à la section transversale du compartiment collecteur (46) et une seconde partie (66) qui correspond partiellement à la section transversale du compartiment réservoir (48), ces deux parties ménageant entre elles une encoche (64) propre à s'engager dans une encoche correspondante (68) ménagée à partir du second bord longitudinal (42) de la cloison longitudinale de séparation (32).Condenser according to claim 7, characterized in that each transverse partition (54) has a first part (62) which constitutes the partition itself and which corresponds to the cross section of the collecting compartment (46) and a second part (66) which partially corresponds to the cross section of the tank compartment (48), these two parts forming between them a notch (64) suitable for engaging in a corresponding notch (68) formed from the second longitudinal edge (42) of the longitudinal partition separation (32). Condenseur selon l'une des revendications 1 à 8, caractérisé en ce que la paroi tubulaire (24) du boîtier (18) est obtenue par enroulement d'une bande métallique de manière à présenter deux bords longitudinaux parallèles (26, 28) qui délimitent entre eux la fente longitudinale (30) du boîtier (18).Condenser according to one of Claims 1 to 8, characterized in that the tubular wall (24) of the housing (18) is obtained by winding a metal strip so as to present two parallel longitudinal edges (26, 28) which delimit between them the longitudinal slot (30) of the housing (18). Condenseur selon l'une des revendications 1 à 9, caractérisé en ce qu'il est obtenu par brasage.Condenser according to one of claims 1 to 9, characterized in that it is obtained by soldering.
EP97103937A 1996-03-25 1997-03-10 Condenser with integrated receiver for cooling circuit Withdrawn EP0798519A1 (en)

Applications Claiming Priority (2)

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FR9603695 1996-03-25
FR9603695A FR2746490B1 (en) 1996-03-25 1996-03-25 CONDENSER WITH INTEGRATED TANK FOR REFRIGERATION CIRCUIT

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EP (1) EP0798519A1 (en)
KR (1) KR970066419A (en)
BR (1) BR9701396A (en)
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KR970066419A (en) 1997-10-13
FR2746490A1 (en) 1997-09-26
FR2746490B1 (en) 1998-04-30
BR9701396A (en) 1998-11-03
US5765633A (en) 1998-06-16
MX9702109A (en) 1998-04-30

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