FR2928448A1 - Gas cooler for air conditioning module of motor vehicle i.e. car, has separation element placed so that pass receives refrigerant in inlet of cooler and presents number of tubes ranging between specific percentage of tubes in bundle - Google Patents
Gas cooler for air conditioning module of motor vehicle i.e. car, has separation element placed so that pass receives refrigerant in inlet of cooler and presents number of tubes ranging between specific percentage of tubes in bundle Download PDFInfo
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- FR2928448A1 FR2928448A1 FR0801182A FR0801182A FR2928448A1 FR 2928448 A1 FR2928448 A1 FR 2928448A1 FR 0801182 A FR0801182 A FR 0801182A FR 0801182 A FR0801182 A FR 0801182A FR 2928448 A1 FR2928448 A1 FR 2928448A1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Refroidisseur de gaz amélioré Improved gas cooler
L'invention concerne un refroidisseur de gaz pour circuit de climatisation automobile. The invention relates to a gas cooler for automobile air conditioning circuit.
Dans les circuits de climatisation automobile moderne, les développements récents ont proposé des fluides réfrigérants qui sont connus sous le nom de fluides supercritiques. Un exemple de tels fluides est le fluide R744. In modern automotive air conditioning systems, recent developments have proposed refrigerants that are known as supercritical fluids. An example of such fluids is the fluid R744.
Dans les circuits de climatisation de véhicule automobile, le fluide réfrigérant chaud est 10 mis en mouvement par un compresseur et est envoyé en phase gazeuse chauffée dans un refroidisseur dans lequel sa température est abaissée. In motor vehicle air conditioning circuits, the hot coolant is set in motion by a compressor and is sent into the heated gas phase in a cooler in which its temperature is lowered.
Dans de tels circuits, le fluide réfrigérant supercritique circule à une pression extrêmement importante, de l'ordre de 150 bars, et un refroidisseur de gaz est 15 caractérisée les pertes de charge qui lui sont associées. Il faut donc trouver le meilleur compromis efficacité thermique/pertes de charge. In such circuits, the supercritical refrigerant circulates at an extremely high pressure, of the order of 150 bar, and a gas cooler is characterized by the pressure losses associated therewith. It is therefore necessary to find the best compromise thermal efficiency / pressure losses.
Pour cela, les solutions qui ont été développées à ce jour contiennent en général deux passes qui sont réparties sur deux faisceaux de tubes d'échanges de chaleur qui sont 20 disposés parallèlement l'un à l'autre. Ce type d'architecture est qualifié de "cross counter flow". For this, the solutions which have been developed to date generally contain two passes which are distributed over two bundles of heat exchange tubes which are arranged parallel to each other. This type of architecture is called "cross counter flow".
Ce type de solution est extrêmement volumineux et compliqué à assembler. 25 L'invention vient à améliorer la situation. This type of solution is extremely bulky and complicated to assemble. The invention improves the situation.
A cet effet, l'invention propose un refroidisseur de gaz pour circuits de climatisation automobile comportant un faisceau de tubes pour la circulation d'un fluide réfrigérant à l'état supercritique, les tubes étant reçus dans une boîte collectrice. 30 Ce refroidisseur comporte un élément de séparation qui définit dans la boîte collectrice au moins deux chambres, chacune associée à une passe dans le faisceau de tubes, ledit élément de séparation étant agencé de sorte que la passe associée à la chambre qui reçoit le fluide réfrigérant en entrée du refroidisseur présente un nombre de tubes compris entre 50 % et 68 % du nombre de tubes dans ledit faisceau. Par ses études, la Demanderesse a démontré qu'un refroidisseur de gaz à plusieurs passes est réalisable avec un seul faisceau de tubes, moyennant une répartition précise du nombre de tubes. Cela est surprenant par rapport à ce qui a été développé à ce jour. En effet, la technologie "cross counter flow" a été développée pour éviter tout pont thermique entre les passes. For this purpose, the invention proposes a gas cooler for automobile air conditioning circuits comprising a bundle of tubes for the circulation of a refrigerant fluid in the supercritical state, the tubes being received in a collecting box. This cooler comprises a separating element which defines in the header box at least two chambers, each associated with a passage in the bundle of tubes, said separating element being arranged so that the pass associated with the chamber which receives the cooling fluid. at the inlet of the cooler has a number of tubes between 50% and 68% of the number of tubes in said beam. Through its studies, the Applicant has demonstrated that a multi-pass gas cooler is achievable with a single bundle of tubes, with a precise distribution of the number of tubes. This is surprising compared to what has been developed so far. Indeed, the technology "cross counter flow" has been developed to avoid any thermal bridge between passes.
Avec un seul faisceau de tubes, un tel refroidisseur est donc plus simple à concevoir, à 15 assembler et également beaucoup moins volumineux que l'existant. Le refroidisseur de l'invention est donc particulièrement adapté aux problématiques modernes de l'industrie automobile. With a single bundle of tubes, such a cooler is therefore easier to design, to assemble and also much less bulky than the existing one. The cooler of the invention is therefore particularly adapted to the modern problems of the automotive industry.
De manière optionnelle et dans des modes de réalisation particuliers, le refroidisseur 20 décrit ci-dessus peut présenter les caractéristiques suivantes : Optionally and in particular embodiments, the chiller 20 described above may have the following characteristics:
- l'élément de séparation est agencé de sorte que la passe associée à la chambre et qui reçoit le fluide réfrigérant en entrée du refroidisseur présente un nombre de tubes compris entre 55 % et 65 % du nombre de tubes dans ledit faisceau ; 25 - le pas entre les tubes dans le faisceau de tubes est compris entre 5 et 8 mm ; - The separating element is arranged so that the pass associated with the chamber and which receives the cooling fluid at the inlet of the cooler has a number of tubes between 55% and 65% of the number of tubes in said beam; The pitch between the tubes in the bundle of tubes is between 5 and 8 mm;
- le pas entre les tubes dans le faisceau de tubes est compris entre 6 et 8 mm ; the pitch between the tubes in the bundle of tubes is between 6 and 8 mm;
30 - le diamètre hydraulique des tubes est compris entre 0,3 et 0,9 mm ; The hydraulic diameter of the tubes is between 0.3 and 0.9 mm;
- le diamètre hydraulique des tubes est compris entre 0,3 et 0,7 mm ; the hydraulic diameter of the tubes is between 0.3 and 0.7 mm;
- la hauteur des tubes est comprise entre 0,8 et 2 mm ;10 - la hauteur des tubes est comprise entre 1 et 1, 7 mm ; - des intercalaires sont disposés entre les tubes dans le faisceau des tubes ; 5 - le pas des intercalaires est compris entre 0,8 et 1, 3 mm ; - le pas des intercalaires est compris entre 1 et 1, 3 mm ; 10 - le nombre de tubes dans ledit faisceau est compris entre 10 et 30 ; - l'élément de séparation est une cloison disposée dans la boîte collectrice ; et - l'élément de séparation est un tube mort. 15 D'autres caractéristiques et avantages apparaîtront mieux à la lecture de la description qui suit, donnée à titre illustratif et non limitatif, d'exemples tirés des dessins sur lesquels : 20 - la figure 1 représente une vue schématique d'un refroidisseur de gaz selon l'invention ; - la figure 2 représente un diagramme de performance du refroidisseur de la figure 1 en fonction de la répartition du nombre de tubes entre les passes, pour divers diamètres hydrauliques et pas entre les tubes ; - la figure 3 représente un diagramme des pertes de charge du refroidisseur de la figure 1 en fonction de la répartition du nombre de tubes entre les passes, pour divers diamètres hydrauliques et pas entre les tubes ; the height of the tubes is between 0.8 and 2 mm, the height of the tubes is between 1 and 1.7 mm; spacers are placed between the tubes in the tube bundle; The pitch of the spacers is between 0.8 and 1.3 mm; the pitch of the spacers is between 1 and 1.3 mm; The number of tubes in said bundle is between 10 and 30; the separating element is a partition disposed in the collecting box; and the separating element is a dead tube. Other characteristics and advantages will appear better on reading the description which follows, given by way of illustration and without limitation, of examples taken from the drawings, in which: FIG. 1 represents a schematic view of a gas cooler; according to the invention; FIG. 2 represents a performance diagram of the cooler of FIG. 1 as a function of the distribution of the number of tubes between the passes, for various hydraulic diameters and not between the tubes; FIG. 3 represents a diagram of the pressure drops of the cooler of FIG. 1 as a function of the distribution of the number of tubes between the passes, for various hydraulic diameters and not between the tubes;
30 - la figure 4 représente une vue schématique de côté du placement du refroidisseur de la figure 1 dans un module de climatisation pour véhicule automobile par rapport aux entrées d'air de la face avant d'un véhicule automobile ; et 25 - la figure 5 représente un diagramme de la température de sortie du fluide et de pertes de charge en fonction de la répartition du nombre de tubes entre les passes lorsque le refroidisseur est dans une situation conforme à celle représentée sur la figure 4. Les dessins et la description ci-après contiennent, pour l'essentiel, des éléments de caractère certain. Ils pourront donc non seulement servir à mieux faire comprendre la présente invention, mais aussi contribuer à sa définition le cas échéant. FIG. 4 represents a schematic side view of the placement of the cooler of FIG. 1 in an air-conditioning module for a motor vehicle with respect to the air intakes of the front face of a motor vehicle; and FIG. 5 shows a diagram of the fluid outlet temperature and pressure drops as a function of the distribution of the number of tubes between the passes when the cooler is in a situation in accordance with that shown in FIG. drawings and the description below contain, for the most part, elements of a certain character. They can therefore not only serve to better understand the present invention, but also contribute to its definition if necessary.
La figure 1 représente un schéma d'un refroidisseur de gaz 2 selon l'invention. Figure 1 shows a diagram of a gas cooler 2 according to the invention.
Le refroidisseur de gaz 2 comporte un faisceau 4 de tubes 6 qui sont reçus à leurs extrémités dans deux boîtes collectrices respectivement 8 et 10. The gas cooler 2 comprises a bundle 4 of tubes 6 which are received at their ends in two manifolds 8 and 10, respectively.
Des intercalaires 12 sont disposés entre les tubes 6 pour favoriser l'échange de chaleur, et la boîte collectrice 8 comporte une entrée 14 et une sortie 16 de fluide réfrigérant supercritique. Interlayers 12 are arranged between the tubes 6 to promote the exchange of heat, and the manifold 8 has an inlet 14 and an outlet 16 of supercritical refrigerant fluid.
Dans l'exemple ici décrit, le fluide réfrigérant à l'état supercritique utilisé est appelé R744. Ce fluide est à base de CO2, et a une masse molaire de 44 g/mol. Ce fluide a un point d'ébullition à -78,5°C, et un point critique caractérisé par une température à 31,1°C, une pression à 73,82 bars, et une densité de 468 kg/m3. In the example described here, the refrigerant fluid in the supercritical state used is called R744. This fluid is based on CO2, and has a molar mass of 44 g / mol. This fluid has a boiling point at -78.5 ° C, and a critical point characterized by a temperature of 31.1 ° C, a pressure of 73.82 bar, and a density of 468 kg / m3.
Le refroidisseur de gaz 2 comporte également un élément de séparation 18 qui sépare la boîte collectrice 8 en deux chambres respectivement Cl et C2, la chambre Cl recevant l'entrée de fluide réfrigérant 14 et la chambre C2 recevant la sortie de fluide réfrigérant 16. The gas cooler 2 also comprises a separating element 18 which separates the manifold 8 into two chambers respectively C1 and C2, the chamber C1 receiving the refrigerant inlet 14 and the chamber C2 receiving the coolant outlet 16.
L'élément de séparation 18 délimite le faisceau 4 en deux passes de tubes 6 respectivement Pl et P2, la passe Pl étant associée à la chambre Cl et la passe P2 étant associée à la chambre C2. Dans l'exemple schématique représenté ici, l'élément de séparation 18 est une cloison et disposé dans la boîte collectrice 8. Comme on le voit sur la figure 1, la cloison 18 est placée en regard d'un tube 6, ce qui en fait un tube mort à travers lequel aucun fluide réfrigérant ne circule.30 En variante, la boîte collectrice qui reçoit l'élément de séparation peut être réalisée sous la forme de deux boîtes distinctes. La cohésion mécanique entre ces boîtes est alors assurée par les tubes d'échange de chaleur qui sont reçus dans l'autre boîte collectrice. Les passes P1 et P2 sont utilisées pour abaisser la température du fluide réfrigérant reçue dans l'entrée 14 grâce à la circulation d'un flux d'air sensiblement perpendiculairement au plan du faisceau 4. The separating element 18 delimits the beam 4 in two passes of tubes 6 respectively P1 and P2, the P1 pass being associated with the chamber C1 and the P2 pass being associated with the chamber C2. In the schematic example shown here, the separating element 18 is a partition and disposed in the manifold 8. As seen in Figure 1, the partition 18 is placed opposite a tube 6, which In a variant, the manifold that receives the separating element can be made in the form of two separate boxes. The mechanical cohesion between these boxes is then ensured by the heat exchange tubes which are received in the other manifold. P1 and P2 passes are used to lower the temperature of the refrigerant received in the inlet 14 through the circulation of a stream of air substantially perpendicular to the plane of the beam 4.
10 Dans un circuit classique, le fluide réfrigérant entre à une température de 150°C et une pression de 125 bars, et sort à une température de 50°C et une pression de 125 bars. In a conventional circuit, the coolant enters at a temperature of 150 ° C and a pressure of 125 bar, and exits at a temperature of 50 ° C and a pressure of 125 bar.
A ces états d'entrée et de sortie, le tableau 1 résume les caractéristiques d'échange de chaleur principal du fluide réfrigérant. TABLEAU 1 Entrée (150°C, 125 bars) Sortie (50°C, 125 bars) Densité 189 kg/m3 616,6 kg/m3 Capacité Thermique 833 J.K"'.kg' 1023,3 J.K-1.kg-1 Viscosité 2,3 10-5 Pa.s-' 4,6 10-5 Pa.s-' Comme cela apparaît au vu de ce tableau, il n'est pas évident de déterminer de manière 20 directe un nombre optimal de tubes pour chaque passe, pour optimiser l'efficacité thermique du refroidisseur de gaz 2 et les pertes de charge qui lui sont associées. At these input and output states, Table 1 summarizes the main heat exchange characteristics of the coolant. TABLE 1 Input (150 ° C, 125 bar) Output (50 ° C, 125 bar) Density 189 kg / m3 616.6 kg / m3 Heat Capacity 833 JK "'kg' 1023.3 JK-1.kg-1 As shown in this table, it is not obvious to determine directly an optimal number of tubes for each pass, to optimize the thermal efficiency of the gas cooler 2 and the pressure losses associated therewith.
Par conséquent, la Demanderesse a procédé à de nombreuses expériences pour des faisceaux de tubes entre lesquels les intercalaires sont introduits. Les caractéristiques des 25 faisceaux qui ont été testés sont résumés dans le tableau 2 ci-après. TABLEAU 2 15 Diamètre Hydraulique 5-8mm Hauteur des tubes 0,8-2mm Pas entre les tubes 5-8mm Nombre de tubes 10-30 Pas entre les intercalaires 0,8-1,3mm Par diamètre hydraulique, on entend le diamètre qu'aurait un cylindre de débit hydraulique équivalent à ces tubes. Therefore, the Applicant has conducted many experiments for bundles of tubes between which the spacers are introduced. The characteristics of the beams that were tested are summarized in Table 2 below. TABLE 2 15 Hydraulic Diameter 5-8mm Tube Height 0.8-2mm Pitch between tubes 5-8mm Number of tubes 10-30 Pitch between spacers 0.8-1.3mm Hydraulic diameter means the diameter would have a hydraulic flow cylinder equivalent to these tubes.
Par hauteur des tubes, on entend la dimension du tube dans la direction parallèle à l'écoulement du flux d'air qui balaye le faisceau lorsque celui-ci est en place, c'est-à-dire orthogonale au plan définit par le faisceau. Tube height means the dimension of the tube in the direction parallel to the flow of the air stream which sweeps the beam when it is in place, that is to say orthogonal to the plane defined by the beam .
La figure 2 est un diagramme qui représente l'efficacité thermique du refroidisseur de gaz 2 en fonction de diverses répartitions des tubes entre les passes Pl et P2, et ce, pour des faisceaux présentant des tubes de diamètre hydraulique et disposés à un pas choisi. FIG. 2 is a diagram which represents the thermal efficiency of the gas cooler 2 as a function of various distributions of the tubes between the passes P1 and P2, and this, for beams having tubes of hydraulic diameter and arranged at a chosen pitch.
La figure 3 est un diagramme similaire à la figure 2 sauf que ce sont les pertes de charge associées au refroidisseur de gaz 2 qui sont représentées. Comme il ressort de ces figures, la répartition des tubes entre les passes qui favorise le plus le compromis efficacité/pertes de charge est la plage dans laquelle la première passe comprend entre 55% et 65% des tubes. Figure 3 is a diagram similar to Figure 2 except that it is the pressure losses associated with the gas cooler 2 are shown. As can be seen from these figures, the distribution of the tubes between the passes which favors the compromise between efficiency and pressure losses is the range in which the first pass comprises between 55% and 65% of the tubes.
20 Une plage particulièrement efficace est celle dans laquelle la première passe comprend entre 58% et 60% du nombre total de tubes. A particularly effective range is that in which the first pass comprises between 58% and 60% of the total number of tubes.
D'autre part, la Demanderesse a remarqué que contrairement à ce qui est communément admis, la conception d'un refroidisseur de gaz à plusieurs passes dans un seul faisceau de 25 tubes peut être aussi efficace que la conception "cross counter flow" dans des conditions d'utilisation réelle. De telles conditions sont représentées sur la figure 4.15 Sur cette figure, on a représenté le refroidisseur de la figure 1 face à un flux d'air composite qui modélise le flux d'air reçu par un circuit de climatisation dans la face avant d'un véhicule automobile. On the other hand, the Applicant has noticed that contrary to what is commonly admitted, the design of a multi-pass gas cooler in a single bundle of tubes can be as effective as the "cross-counter flow" design in conditions of actual use. Such conditions are shown in FIG. 4.15. In this figure, the cooler of FIG. 1 is shown in front of a composite air flow which models the air flow received by an air conditioning circuit in the front face of a motor vehicle.
Dans un tel circuit, la température de l'air traversant le refroidisseur de gaz 2 n'est pas uniforme. D'une manière générale, on peut considérer que cet air est réparti en deux flux d'air séparés à peu près à mi-hauteur du refroidisseur de gaz 2. In such a circuit, the temperature of the air passing through the gas cooler 2 is not uniform. In general, it can be considered that this air is divided into two air flows separated approximately halfway up the gas cooler 2.
Sur la base de cette répartition de flux d'air, la Demanderesse a établi le diagramme de la figure 5 qui est un diagramme similaire au diagramme 2 des figures 2 et 3. On the basis of this air flow distribution, the Applicant has drawn the diagram of FIG. 5 which is a diagram similar to diagram 2 of FIGS. 2 and 3.
Le diagramme de la figure 5 exprime la température de sortie et les pertes de charge qui sont associées au refroidisseur de gaz 2 dans la configuration de la figure 4, en fonction de la répartition des tubes entre les passes dans le faisceau 4. Ce diagramme a été établi avec des faisceaux de tubes de caractéristiques similaires à celles de ceux qui ont été utilisés pour les diagrammes des figures 2 et 3. The diagram of FIG. 5 expresses the outlet temperature and the pressure drops which are associated with the gas cooler 2 in the configuration of FIG. 4, as a function of the distribution of the tubes between the passes in the beam 4. was established with tube bundles of similar characteristics to those used for the diagrams of Figures 2 and 3.
Comme il ressort de la figure 5, il est optimal d'utiliser le refroidisseur de gaz 2 en le 20 positionnant de sorte que la première passe comprend entre entre 55% et 65% des tubes, et que cette passe fait face au flux d'air le plus chaud. Une plage particulièrement efficace est celle dans laquelle la première passe comprend entre 58% et 60% du nombre total de tubes. As is apparent from FIG. 5, it is optimal to use the gas cooler 2 by positioning it so that the first pass comprises between 55% and 65% of the tubes, and that this pass is facing the flow of the hottest air. A particularly effective range is that in which the first pass comprises between 58% and 60% of the total number of tubes.
25 La description qui précède ne doit pas être interprétée de manière limitative, et elle englobe l'ensemble des variantes qui ont été décrites, ainsi que leur combinaison le cas échéant, dans le cadre général définit par les revendications qui suivent.15 The foregoing description should not be interpreted in a limiting manner, and encompasses all the variants which have been described, as well as their combination, if any, within the general scope defined by the following claims.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0801182A FR2928448B1 (en) | 2008-03-04 | 2008-03-04 | IMPROVED GAS COOLER |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0801182A FR2928448B1 (en) | 2008-03-04 | 2008-03-04 | IMPROVED GAS COOLER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2928448A1 true FR2928448A1 (en) | 2009-09-11 |
| FR2928448B1 FR2928448B1 (en) | 2015-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0801182A Expired - Fee Related FR2928448B1 (en) | 2008-03-04 | 2008-03-04 | IMPROVED GAS COOLER |
Country Status (1)
| Country | Link |
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| FR (1) | FR2928448B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011018332A1 (en) * | 2009-08-12 | 2011-02-17 | Valeo Systemes Thermiques | Heat exchanger having at least a two-stroke cycle, and air-conditioning loop including such a heat exchanger |
| EP2336703A1 (en) | 2009-12-16 | 2011-06-22 | Valeo Systèmes Thermiques | Air conditioning system comprising a system to control freezing of a heat exchanger of an air conditioning loop |
| FR3049050A1 (en) * | 2016-03-18 | 2017-09-22 | Valeo Systemes Thermiques | HEAT EXCHANGER, IN PARTICULAR FOR A MOTOR VEHICLE |
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|---|---|---|---|---|
| EP0359358A1 (en) * | 1988-09-14 | 1990-03-21 | Showa Aluminum Kabushiki Kaisha | A condenser |
| US6125922A (en) * | 1992-11-25 | 2000-10-03 | Nippondenso Co., Ltd. | Refrigerant condenser |
| FR2785376A1 (en) * | 1998-10-29 | 2000-05-05 | Valeo Thermique Moteur Sa | Heat exchanger for motor vehicle internal combustion engine has inactive tube in bundle separating manifold into two sections |
| EP1167910A2 (en) * | 2000-06-20 | 2002-01-02 | Showa Denko Kabushiki Kaisha | Condenser |
| US20030041617A1 (en) * | 2001-08-02 | 2003-03-06 | Modine Manufacturing Company | Cooling system for a vehicle |
| JP2004239479A (en) * | 2003-02-04 | 2004-08-26 | Denso Corp | Radiator and vehicle mounted structure |
| JP2005283021A (en) * | 2004-03-30 | 2005-10-13 | Calsonic Kansei Corp | Heat exchange system |
| WO2006068262A1 (en) * | 2004-12-24 | 2006-06-29 | Showa Denko K.K. | Heat exchanger |
| US20070131393A1 (en) * | 2005-12-14 | 2007-06-14 | Showa Denko K.K. | Heat exchanger |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011018332A1 (en) * | 2009-08-12 | 2011-02-17 | Valeo Systemes Thermiques | Heat exchanger having at least a two-stroke cycle, and air-conditioning loop including such a heat exchanger |
| FR2949149A1 (en) * | 2009-08-12 | 2011-02-18 | Valeo Systemes Thermiques | HEAT EXCHANGER HAS AT LEAST TWO PASSES AND AIR CONDITIONING LOOP COMPRISING SUCH A HEAT EXCHANGER |
| EP2336703A1 (en) | 2009-12-16 | 2011-06-22 | Valeo Systèmes Thermiques | Air conditioning system comprising a system to control freezing of a heat exchanger of an air conditioning loop |
| FR3049050A1 (en) * | 2016-03-18 | 2017-09-22 | Valeo Systemes Thermiques | HEAT EXCHANGER, IN PARTICULAR FOR A MOTOR VEHICLE |
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| Publication number | Publication date |
|---|---|
| FR2928448B1 (en) | 2015-05-01 |
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