EP1363087A1 - Receiver under variable pressure especially for condenser - Google Patents

Receiver under variable pressure especially for condenser Download PDF

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Publication number
EP1363087A1
EP1363087A1 EP03291037A EP03291037A EP1363087A1 EP 1363087 A1 EP1363087 A1 EP 1363087A1 EP 03291037 A EP03291037 A EP 03291037A EP 03291037 A EP03291037 A EP 03291037A EP 1363087 A1 EP1363087 A1 EP 1363087A1
Authority
EP
European Patent Office
Prior art keywords
plate
plug
rod
container
tubular element
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
EP03291037A
Other languages
German (de)
French (fr)
Other versions
EP1363087B1 (en
Inventor
Hervé Charlot
Michel Lentgen
Jamil Ben Hamida
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 International GmbH
Original Assignee
Delphi Technologies Inc
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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP1363087A1 publication Critical patent/EP1363087A1/en
Application granted granted Critical
Publication of EP1363087B1 publication Critical patent/EP1363087B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/16—Receivers
    • F25B2400/162—Receivers characterised by the plug or stop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/003—Filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on conduits
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/19—Rubber plugs and caps
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/20—Safety locking devices

Definitions

  • the present invention relates generally to variable pressure vessels and more specifically condensers of heat exchangers in an air conditioning installation of a motor vehicle.
  • Containers of this kind include, among other things, a cartridge exchangeable filled with desiccant granules.
  • This cartridge is introduced into a tubular element defining an opening of the container outward.
  • This opening can be closed using a cap fitted with O-rings and which can be inserted by sliding in the tubular element. Moving the plug to the interior is limited by a stop means in the form of a shoulder circular on the inner surface of the tubular member.
  • detachable axial stop means can be put in place inside the tubular member to limit movement of the plug outwards.
  • FR-2 798 456 a container in the form of a collector for a condenser of an air conditioning system.
  • This manifold has a tubular element closed by a plug cylindrical whose movement towards the outside is prevented by axial stop means constituted by a circlip in the form of a ring split elastic.
  • this circlip When the plug is in place in the tubular element, this circlip is introduced through the open end of the tubular element and placed in a circular groove provided on the inside of the element tubular, near the end of it.
  • the cap has at its end directed towards the circlip a circular peripheral recess adapted to the shape of the circlip in order to be able to receive it when the cap is pushed outward by an overpressure prevailing in the container.
  • the implementation circlip position is a relatively delicate operation which takes a certain time and which requires a specialized tool.
  • the machining of the inner face of the tubular element to prepare the circular groove serving as a retaining ring is an operation which increases costs of the assembly.
  • the object of the invention is to remedy these drawbacks by proposing a container of the kind mentioned provided with stop means axial of the cap towards the outside which are also extremely simple both in use and in manufacturing, while ensuring safety operators.
  • the object of the invention is a variable pressure container connected to a tubular element delimiting an opening of the container towards the outside, said opening being capable of being closed by a plug provided sealing means and adapted to be introduced by sliding axial in said tubular element, said plug being associated with detachable axial stop means capable of cooperating with axial locking means provided in said tubular element and allowing said stop means to extend transversely in this in front of the outer end of said plug to prevent removal thereof when an overpressure prevails in the container, characterized by the fact that said means for axially locking said means abutment have a first slot in the wall of the element tubular and a second slot diametrically opposite to said first slot, and that said stop means are adapted to be introduced transversely into said tubular element by said first slot and to protrude outside said tubular element by said second slot.
  • the container can be a heat exchanger condenser or any other container under variable pressure. In the case of the condenser, this pressure can drop to atmospheric pressure when the installation of which the condenser is part is not in operation.
  • This container which is known per se will not be described in detail; he is in the figures materialized by a tubular element 1 connected to the container and delimiting an opening 2 of the container towards the outside.
  • the opening 2 is closed by a plug 3 having generally the shape of a cylindrical piston which is introduced by axial sliding in the tubular element 1.
  • This plug is preferably made of aluminum and includes sealing means comprising in the example illustrated two circular grooves 4 serving as housings with two O-rings 5.
  • the tubular element 1 has on its inner face a circular shoulder 6 constituting a stop member delimiting the displacement of the plug 3 inwards.
  • axial stop When the plug 3 is in place in the tubular element 1 (see figure 2) and that it is pushed outwards by an overpressure that prevails inside the container, its movement is limited by means of axial stop (see figure 1).
  • axial stop means include a plate 7 which is illustrated as a whole in FIGS. 4 and 5. In the position of Figure 1, the large lower surface of the plate constitutes a stop surface for the plug.
  • This plate 7 which is preferably made of steel, is introduced transversely in the tubular element 1 by a first slot 8 of the wall thereof to protrude outside the tubular member by a second slot 9 diametrically opposite the first slot.
  • the first and second slots 8, 9 constitute means for axial blocking of the plate when it is in the position illustrated in Figures 1 and 2.
  • the rod has a T-shape as shown in the figures.
  • the hole central 10 of the plate 7 has an elongated shape allowing introducing the end of the rod through this hole when the cap is pushed up by overpressure, whereupon the cap can be rotated about 90 ° to prevent it from coming back down when the pressure drops.
  • the rod preferably has on the transverse element 12 of its T-shape two parallel lateral 13 flats allowing the grip by a tool to rotate the plug 3.
  • this shape of the rod offers excellent grip for later removal of the cap outside the tubular element 1.
  • the same stop function for the plate when it is placement can be obtained by an increased width of the part rear of plate 7 which then has shoulders abutting against the outer surface of the tubular element 1.
  • the front end of the plate is preferably beveled.
  • Figure 9 illustrates a variant of the plate 7 in which the ends of the plate have a raised rim 16 constituting a transverse locking means of the plate when the plug 3 bears against the abutment surface of the plate.
  • the slots 8, 9 in this case have a greater width compared to that illustrated in FIGS. 1 and 2 in order to allow the introduction of the plate.
  • the plate with a raised rim end can easily be manufactured in a stamping and punching.
  • the means according to the invention operate from the following way from a situation in which the plug 3 and the plate 7 are dissociated from the tubular element 1 of the container.
  • the plug 3 is introduced by axial sliding in tubular element 1 until it abuts against the shoulder circular 6 on the inner surface of the tubular element. Then the plate 7 is introduced through the slots 8, 9 of the tubular element until its shoulders 14 abut against the surface inside of the tubular element.
  • the rod is a circular rod, the device is already in principle ready for operation.
  • the stem 11 of the plug has the T shape, it is important to ensure that it is during the introduction of the cap oriented as shown in Figure 2 to allow the subsequent passage of the rod through the central hole 10 of the plate. Then, increase the pressure in the container so that the plug 3 is pushed outwards, which has the result that it abuts against the plate 7 and that the rod does the same time protruding through the central hole of the plate. Then just turn the stopper of about 90 ° to prevent it from coming down again when of depression.
  • Disassembly of the assembly is done in reverse order. First, it the pressure must have dropped significantly to be practically equal to atmospheric pressure. Then start by turning the cap about 90 ° in the case of a rod in T. The plug is then moved inward by pushing on the rod and that enough so that it is completely free of central hole 10 in plate 7. Then plate 7 can be removed from the tubular member to allow removal of the plug, giving finally access to the interior of the tubular element.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Closures For Containers (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

The tubular coupling (1) for a pressurized container such as a heat exchanger condenser has a plug (3) with ring seals (5) that can be removed e.g. to replace a desiccant cartridge. The plug is held in place by a transverse plate (7) inserted through slots (8, 9) in the coupling walls, the plate having a through hole (10) for a rod (11) on the upper end of the plug. The plug can be removed only when the pressure inside the container has fallen to atmospheric level, when the rod can be rotated to allow projecting edges to pass through the hole and the plug can be pushed into the coupling as far as an inner shoulder (6) to enable the plate to be withdrawn.

Description

La présente invention concerne d'une manière générale les récipients sous pression variable et plus particulièrement les condenseurs d'échangeurs thermiques dans une installation de climatisation d'un véhicule automobile.The present invention relates generally to variable pressure vessels and more specifically condensers of heat exchangers in an air conditioning installation of a motor vehicle.

Les récipients de ce genre comportent, entre autres, une cartouche échangeable remplie de granulés dessiccateurs. Cette cartouche est introduite dans un élément tubulaire délimitant une ouverture du récipient vers l'extérieur. Cette ouverture peut être refermée à l'aide d'un bouchon pourvu de joints toriques et qui peut être introduit par coulissement dans l'élément tubulaire. Le déplacement du bouchon vers l'intérieur est limité par un moyen de butée sous forme d'un épaulement circulaire sur la surface intérieure de l'élément tubulaire.Containers of this kind include, among other things, a cartridge exchangeable filled with desiccant granules. This cartridge is introduced into a tubular element defining an opening of the container outward. This opening can be closed using a cap fitted with O-rings and which can be inserted by sliding in the tubular element. Moving the plug to the interior is limited by a stop means in the form of a shoulder circular on the inner surface of the tubular member.

Pour empêcher le bouchon de ressortir lorsque la pression augmente dans le récipient lors du fonctionnement de l'installation, d'autres moyens de butée axiale détachables peuvent être mis en place à l'intérieur de l'élément tubulaire afin de limiter le mouvement du bouchon vers l'extérieur.To prevent the plug from coming out when pressure increases in the container during operation of the installation, other detachable axial stop means can be put in place inside the tubular member to limit movement of the plug outwards.

Pour des raisons de sécurité évidentes, il est souhaitable qu'il soit impossible d'enlever les moyens de butée axiale détachables tant qu'une surpression règne à l'intérieur du récipient. Autrement dit, l'opérateur doit attendre jusqu'à ce que la pression à l'intérieur du récipient soit descendue pratiquement à la pression atmosphérique pour pouvoir enlever le bouchon pour ensuite avoir accès à l'intérieur de l'élément tubulaire pour par exemple changer la cartouche à granulés dessiccateurs.For obvious security reasons, it is desirable that it be impossible to remove the detachable axial stop means as long as a overpressure prevails inside the container. In other words, the operator must wait until the pressure inside the container is practically lowered to atmospheric pressure to be able to remove the plug and then have access to the interior of the element tubular for example changing the pellet cartridge dryers.

On connaít du FR-2 798 456 un récipient sous forme d'un collecteur pour un condenseur d'une installation de climatisation. Ce collecteur comporte un élément tubulaire fermé par un bouchon cylindrique dont le déplacement vers l'extérieur est empêché par des moyens de butée axiale constitués par un circlips sous forme d'un anneau élastique fendu.We know from FR-2 798 456 a container in the form of a collector for a condenser of an air conditioning system. This manifold has a tubular element closed by a plug cylindrical whose movement towards the outside is prevented by axial stop means constituted by a circlip in the form of a ring split elastic.

Lorsque le bouchon est en place dans l'élément tubulaire, ce circlips est introduit par l'extrémité ouverte de l'élément tubulaire et placé dans une gorge circulaire prévue sur la face intérieure de l'élément tubulaire, près de l'extrémité de celui-ci. Le bouchon comporte à son extrémité dirigée vers le circlips un évidement périphérique circulaire adapté à la forme du circlips afin de pouvoir recevoir celui-ci lorsque le bouchon est poussé vers l'extérieur par une surpression régnant dans le récipient. Ainsi, lorsque le bouchon se trouve en butée contre le circlips, il est impossible d'enlever le circlips se trouvant alors dans l'évidement. Il faudra donc attendre que la pression soit suffisamment basse pour qu'il soit possible de repousser le bouchon légèrement vers l'intérieur afin de pouvoir ensuite enlever le circlips.When the plug is in place in the tubular element, this circlip is introduced through the open end of the tubular element and placed in a circular groove provided on the inside of the element tubular, near the end of it. The cap has at its end directed towards the circlip a circular peripheral recess adapted to the shape of the circlip in order to be able to receive it when the cap is pushed outward by an overpressure prevailing in the container. Thus, when the cap is in abutment against the circlip, it is impossible to remove the circlip then located in the recess. It will therefore be necessary to wait until the pressure is low enough for it to it is possible to push the cap slightly inwards in order to then be able to remove the circlip.

Même si ce dispositif donne généralement satisfaction, la mise en place du circlips est une opération relativement délicate qui prend un certain temps et qui nécessite un outil spécialisé. En outre, l'usinage de la face intérieure de l'élément tubulaire pour préparer la gorge circulaire servant de logement au circlips est une opération qui augmente les coûts de fabrication de l'ensemble.Even if this device is generally satisfactory, the implementation circlip position is a relatively delicate operation which takes a certain time and which requires a specialized tool. In addition, the machining of the inner face of the tubular element to prepare the circular groove serving as a retaining ring is an operation which increases costs of the assembly.

Le but de l'invention est de remédier à ces inconvénients en proposant un récipient du genre mentionné pourvu de moyens de butée axiale du bouchon vers l'extérieur qui soient extrêmement simples aussi bien dans l'utilisation que dans la fabrication, tout en assurant la sécurité des opérateurs.The object of the invention is to remedy these drawbacks by proposing a container of the kind mentioned provided with stop means axial of the cap towards the outside which are also extremely simple both in use and in manufacturing, while ensuring safety operators.

L'objet de l'invention est un récipient sous pression variable relié à un élément tubulaire délimitant une ouverture du récipient vers l'extérieur, ladite ouverture pouvant être fermée par un bouchon pourvu de moyens d'étanchéité et adapté pour être introduit par coulissement axial dans ledit élément tubulaire, ledit bouchon étant associé à des moyens de butée axiale détachables susceptibles de coopérer avec des moyens de blocage axial prévus dans ledit élément tubulaire et permettant auxdits moyens de butée de s'étendre transversalement dans celui-ci devant l'extrémité extérieure dudit bouchon pour empêcher l'enlèvement de celui-ci lorsqu'une surpression règne dans le récipient, caractérisé par le fait que lesdits moyens de blocage axial desdits moyens de butée comportent une première fente dans la paroi de l'élément tubulaire et une deuxième fente diamétralement opposée à ladite première fente, et que lesdits moyens de butée sont adaptés pour être introduits transversalement dans ledit élément tubulaire par ladite première fente et pour faire saillie en dehors dudit élément tubulaire par ladite deuxième fente.The object of the invention is a variable pressure container connected to a tubular element delimiting an opening of the container towards the outside, said opening being capable of being closed by a plug provided sealing means and adapted to be introduced by sliding axial in said tubular element, said plug being associated with detachable axial stop means capable of cooperating with axial locking means provided in said tubular element and allowing said stop means to extend transversely in this in front of the outer end of said plug to prevent removal thereof when an overpressure prevails in the container, characterized by the fact that said means for axially locking said means abutment have a first slot in the wall of the element tubular and a second slot diametrically opposite to said first slot, and that said stop means are adapted to be introduced transversely into said tubular element by said first slot and to protrude outside said tubular element by said second slot.

Selon d'autres caractéristiques de l'invention :

  • lesdits moyens de butée comportent une plaque allongée dont l'une des grandes surfaces constitue une surface de butée pour le bouchon ;
  • ladite plaque comporte un trou central traversant et le bouchon est à son extrémité extérieure pourvu d'une tige centrale apte à faire saillie par ledit trou central sous l'action d'une surpression dans le récipient, afin d'empêcher complètement le retrait desdits moyens de butée ;
  • ladite tige a une forme cylindrique et ledit trou central de ladite plaque présente une forme circulaire ;
  • ladite tige a une forme en T, et ledit trou central de ladite plaque présente une forme allongée permettant l'introduction de l'extrémité de la tige à travers le trou, en interdisant son déplacement vers l'intérieur suite à une rotation d'environ 90° de la tige ;
  • l'élément transversal de la forme en T de la tige comporte deux méplats latéraux parallèles permettant la prise par un outil pour faire tourner le bouchon ;
  • ladite plaque présente une extrémité avant à largeur réduite de manière à définir des épaulements de part et d'autre de ladite plaque, lesdits épaulements étant destinés à venir en butée contre la surface intérieure dudit élément tubulaire lors de l'introduction de la plaque à travers lesdites fentes ;
  • ladite plaque présente une extrémité avant biseautée ;
  • ladite plaque présente une extrémité arrière pourvue d'au moins un trou permettant la prise par un outil pour le retrait de la plaque en dehors dudit élément tubulaire ;
  • ladite plaque comporte au moins à son extrémité avant un rebord surélevé constituant un moyen de blocage transversal lorsque le bouchon est en appui contre ladite surface de butée de ladite plaque ;
  • ladite plaque est en acier.
According to other characteristics of the invention:
  • said stop means comprise an elongated plate, one of the large surfaces of which constitutes a stop surface for the plug;
  • said plate has a central through hole and the cap is at its outer end provided with a central rod capable of projecting through said central hole under the action of an overpressure in the container, in order to completely prevent the withdrawal of said means stop;
  • said rod has a cylindrical shape and said central hole in said plate has a circular shape;
  • said rod has a T shape, and said central hole of said plate has an elongated shape allowing the introduction of the end of the rod through the hole, preventing its movement inward following a rotation of about 90 ° from the stem;
  • the transverse element of the T-shape of the rod has two parallel lateral flats allowing the grip by a tool to rotate the plug;
  • said plate has a reduced width front end so as to define shoulders on either side of said plate, said shoulders being intended to abut against the interior surface of said tubular element during the introduction of the plate through said slots;
  • said plate has a beveled front end;
  • said plate has a rear end provided with at least one hole allowing the grip by a tool for removing the plate outside said tubular element;
  • said plate comprises at least at its front end a raised rim constituting a transverse locking means when the plug is in abutment against said abutment surface of said plate;
  • said plate is made of steel.

D'autres caractéristiques et avantages de l'invention ressortiront de la description qui va suivre d'un mode de réalisation non limitatif de l'invention, en référence aux figures annexées dans lesquelles :

  • la figure 1 est une vue en coupe longitudinale partielle selon la ligne I-I de la figure 3 illustrant un élément tubulaire pourvu d'un bouchon et d'une plaque de butée axiale selon l'invention ; la figure 1 montre le bouchon dans sa position repoussée vers l'extérieur contre la plaque de butée par une surpression dans l'enceinte ;
  • la figure 2 est une vue en coupe longitudinale partielle d'un élément tubulaire pourvu d'un bouchon et une plaque de butée axiale selon l'invention ; cette figure montre le bouchon dans sa position repoussée vers l'intérieur pour la mise en place de la plaque de butée ;
  • la figure 3 est une vue de dessus partielle des éléments des figures 1 et 2 ;
  • La figure 4 est une vue en perspective d'une plaque de butée selon l'invention ;
  • La figure 5 est une vue de dessus de la plaque de butée de la figure 4 ;
  • La figure 6 est une vue latérale d'un bouchon selon l'invention ;
  • La figure 7 est une vue en perspective du bouchon de la figure 6 ;
  • La figure 8 est une vue de dessus du bouchon des figures 6 et 7 ;
  • La figure 9 est une vue latérale d'une plaque pourvue de rebords surélevés à ses extrémités.
Other characteristics and advantages of the invention will emerge from the description which follows of a nonlimiting embodiment of the invention, with reference to the appended figures in which:
  • Figure 1 is a partial longitudinal sectional view along line II of Figure 3 illustrating a tubular member provided with a plug and an axial stop plate according to the invention; Figure 1 shows the plug in its position pushed outwards against the stop plate by an overpressure in the enclosure;
  • Figure 2 is a partial longitudinal sectional view of a tubular member provided with a plug and an axial stop plate according to the invention; this figure shows the plug in its inwardly pushed position for the establishment of the stop plate;
  • Figure 3 is a partial top view of the elements of Figures 1 and 2;
  • Figure 4 is a perspective view of a stop plate according to the invention;
  • Figure 5 is a top view of the stop plate of Figure 4;
  • Figure 6 is a side view of a plug according to the invention;
  • Figure 7 is a perspective view of the cap of Figure 6;
  • Figure 8 is a top view of the cap of Figures 6 and 7;
  • Figure 9 is a side view of a plate provided with raised edges at its ends.

Dans les figures, les éléments identiques ou équivalents porteront les mêmes signes de référence.In the figures, identical or equivalent elements will bear the same reference signs.

Le récipient peut être un condenseur d'échangeur thermique ou tout autre récipient sous pression variable. Dans le cas du condenseur, cette pression peut descendre jusqu'à la pression atmosphérique lorsque l'installation dont fait partie le condenseur n'est pas en fonctionnement. The container can be a heat exchanger condenser or any other container under variable pressure. In the case of the condenser, this pressure can drop to atmospheric pressure when the installation of which the condenser is part is not in operation.

Ce récipient qui est en soi connu ne sera pas décrit en détail ; il est dans les figures matérialisé par un élément tubulaire 1 relié au récipient et délimitant une ouverture 2 du récipient vers l'extérieur.This container which is known per se will not be described in detail; he is in the figures materialized by a tubular element 1 connected to the container and delimiting an opening 2 of the container towards the outside.

L'ouverture 2 est fermée par un bouchon 3 ayant globalement la forme d'un piston cylindrique qui est introduit par coulissement axial dans l'élément tubulaire 1. Ce bouchon est de préférence en aluminium et comporte des moyens d'étanchéité comportant dans l'exemple illustré deux gorges circulaires 4 servant de logements à deux joints toriques 5.The opening 2 is closed by a plug 3 having generally the shape of a cylindrical piston which is introduced by axial sliding in the tubular element 1. This plug is preferably made of aluminum and includes sealing means comprising in the example illustrated two circular grooves 4 serving as housings with two O-rings 5.

L'élément tubulaire 1 comporte sur sa face intérieure un épaulement circulaire 6 constituant un organe de butée délimitant le déplacement du bouchon 3 vers l'intérieur.The tubular element 1 has on its inner face a circular shoulder 6 constituting a stop member delimiting the displacement of the plug 3 inwards.

Lorsque le bouchon 3 est en place dans l'élément tubulaire 1 (voir figure 2) et qu'il est poussé vers l'extérieur par une surpression qui règne à l'intérieur du récipient, son déplacement est limité par des moyens de butée axiale (voir figure 1). Ces moyens de butée axiale comportent une plaque 7 qui est illustrée dans son ensemble aux figures 4 et 5. Dans la position de la figure 1, la grande surface inférieure de la plaque constitue une surface de butée pour le bouchon.When the plug 3 is in place in the tubular element 1 (see figure 2) and that it is pushed outwards by an overpressure that prevails inside the container, its movement is limited by means of axial stop (see figure 1). These axial stop means include a plate 7 which is illustrated as a whole in FIGS. 4 and 5. In the position of Figure 1, the large lower surface of the plate constitutes a stop surface for the plug.

Cette plaque 7, qui de préférence est en acier, est introduite transversalement dans l'élément tubulaire 1 par une première fente 8 de la paroi de celui-ci pour faire saillie en dehors de l'élément tubulaire par une deuxième fente 9 diamétralement opposée à la première fente.This plate 7, which is preferably made of steel, is introduced transversely in the tubular element 1 by a first slot 8 of the wall thereof to protrude outside the tubular member by a second slot 9 diametrically opposite the first slot.

Les première et deuxième fentes 8, 9 constituent des moyens de blocage axial de la plaque lorsque celle-ci se trouve dans la position illustrée aux figures 1 et 2.The first and second slots 8, 9 constitute means for axial blocking of the plate when it is in the position illustrated in Figures 1 and 2.

Lorsqu'une surpression règne dans le récipient et que le bouchon se trouve plaqué contre la surface de butée de la plaque, il est déjà très difficile de retirer la plaque 7 en dehors de l'élément tubulaire 1, mais pour empêcher complètement son retrait, elle est pourvue d'un trou central traversant 10 apte à permettre le passage d'une tige centrale 11 disposée à l'extrémité extérieure du bouchon 3. Ainsi, lorsque le bouchon 3 est poussé vers l'extérieur sous l'action de la pression qui règne dans le récipient, la tige fait saillie à travers ce trou central 10 de la plaque pour bloquer tout mouvement de retrait de celle-ci. When there is an overpressure in the container and the cap is pressed against the abutment surface of the plate, it is already very difficult to remove the plate 7 outside the tubular element 1, but to completely prevent its removal, it is provided with a hole central crossing 10 able to allow the passage of a central rod 11 disposed at the outer end of the plug 3. Thus, when the plug 3 is pushed outward under the action of the pressure prevailing in the container, the rod projects through this central hole 10 of the plate for block any movement to withdraw it.

La sécurité peut être davantage améliorée si la tige présente une forme en T comme cela est illustré sur les figures. Dans ce cas, le trou central 10 de la plaque 7 présente une forme allongée permettant l'introduction de l'extrémité de la tige à travers ce trou lorsque le bouchon est poussé vers le haut par la surpression, suite à quoi le bouchon peut être tourné d'environ 90° pour l'empêcher de redescendre lorsque la pression diminue.Safety can be further improved if the rod has a T-shape as shown in the figures. In this case, the hole central 10 of the plate 7 has an elongated shape allowing introducing the end of the rod through this hole when the cap is pushed up by overpressure, whereupon the cap can be rotated about 90 ° to prevent it from coming back down when the pressure drops.

La tige comporte de préférence sur l'élément transversal 12 de sa forme en T deux méplats 13 latéraux parallèles permettant la prise par un outil pour faire tourner le bouchon 3. En plus, cette forme de la tige offre une excellente prise pour le retrait ultérieur du bouchon en dehors de l'élément tubulaire 1.The rod preferably has on the transverse element 12 of its T-shape two parallel lateral 13 flats allowing the grip by a tool to rotate the plug 3. In addition, this shape of the rod offers excellent grip for later removal of the cap outside the tubular element 1.

Afin de limiter le déplacement de la plaque 7 vers sa position d'utilisation illustrée sur les figures 1 et 2, elle présente dans l'exemple illustré une extrémité avant à largeur réduite afin de définir des épaulements 14 de part et d'autre de la plaque, ces épaulements étant de préférence arrondis pour épouser la forme de la surface intérieure de l'élément tubulaire 1 contre laquelle ils viendront en butée lors de l'introduction de la plaque par les fentes 8, 9.In order to limit the displacement of the plate 7 towards its position of use illustrated in FIGS. 1 and 2, it presents in the example illustrated a reduced width front end to define shoulders 14 on either side of the plate, these shoulders being of preferably rounded to match the shape of the inner surface of the tubular element 1 against which they will abut when the introduction of the plate through the slots 8, 9.

En variante, la même fonction de butée pour la plaque lors de sa mise en place peut être obtenue par une largeur augmentée de la partie arrière de la plaque 7 qui alors présente des épaulements venant en butée contre la surface extérieure de l'élément tubulaire 1.As a variant, the same stop function for the plate when it is placement can be obtained by an increased width of the part rear of plate 7 which then has shoulders abutting against the outer surface of the tubular element 1.

Pour faciliter l'introduction de la plaque 7 à travers les fentes 8, 9 de l'élément tubulaire 1, l'extrémité avant de la plaque est de préférence biseautée.To facilitate the introduction of the plate 7 through the slots 8, 9 of the tubular element 1, the front end of the plate is preferably beveled.

Enfin, pour faciliter l'extraction de la plaque, celle-ci comporte avantageusement un ou plusieurs trous traversants ou borgnes 15 permettant la prise par un outil adapté.Finally, to facilitate the extraction of the plate, it has advantageously one or more through holes or blind holes 15 allowing the grip by a suitable tool.

Finalement, la figure 9 illustre une variante de la plaque 7 dans laquelle les extrémités de la plaque comportent un rebord surélevé 16 constituant un moyen de blocage transversal de la plaque lorsque le bouchon 3 est en appui contre la surface de butée de la plaque. Les fentes 8, 9 présentent dans ce cas une largeur plus importante par rapport à celle illustrée sur les figures 1 et 2 afin de permettre l'introduction de la plaque.Finally, Figure 9 illustrates a variant of the plate 7 in which the ends of the plate have a raised rim 16 constituting a transverse locking means of the plate when the plug 3 bears against the abutment surface of the plate. The slots 8, 9 in this case have a greater width compared to that illustrated in FIGS. 1 and 2 in order to allow the introduction of the plate.

Il suffit par ailleurs de prévoir un tel rebord surélevé à l'extrémité avant de la plaque 7. Bien entendu, dans ce cas le trou central 10 de la plaque ainsi que la tige 11 du bouchon peuvent être tout simplement remplacés par ce rebord surélevé, ce qui simplifie davantage la fabrication des pièces. Cependant, tous ces moyens de blocage transversal de la plaque peuvent être utilisés en combinaison les uns avec les autres.It is also sufficient to provide such a raised rim at the end front of the plate 7. Of course, in this case the central hole 10 of the plate as well as the rod 11 of the plug can be simply replaced by this raised rim, which further simplifies the parts manufacturing. However, all of these blocking means transverse plate can be used in combination with each others.

La plaque comportant une extrémité à rebord surélevé peut facilement être fabriquée dans une presse d'estampage et de poinçonnage.The plate with a raised rim end can easily be manufactured in a stamping and punching.

En résumé, les moyens selon l'invention fonctionnent de la manière suivante à partir d'une situation dans laquelle le bouchon 3 et la plaque 7 sont dissociés de l'élément tubulaire 1 du récipient.In summary, the means according to the invention operate from the following way from a situation in which the plug 3 and the plate 7 are dissociated from the tubular element 1 of the container.

D'abord, le bouchon 3 est introduit par coulissement axial dans l'élément tubulaire 1 jusqu'à ce qu'il vienne en butée contre l'épaulement circulaire 6 sur la surface intérieure de l'élément tubulaire. Ensuite, la plaque 7 est introduite à travers les fentes 8, 9 de l'élément tubulaire jusqu'à ce que ses épaulements 14 viennent en butée contre la surface intérieure de l'élément tubulaire. Lorsque la tige est une tige circulaire, le dispositif est déjà en principe prêt à fonctionner.First, the plug 3 is introduced by axial sliding in tubular element 1 until it abuts against the shoulder circular 6 on the inner surface of the tubular element. Then the plate 7 is introduced through the slots 8, 9 of the tubular element until its shoulders 14 abut against the surface inside of the tubular element. When the rod is a circular rod, the device is already in principle ready for operation.

Cependant, lorsque la tige 11 du bouchon présente la forme en T, il est important à veiller à ce qu'elle soit lors de l'introduction du bouchon orientée comme cela est illustré à la figure 2 afin de permettre le passage ultérieur de la tige par le trou central 10 de la plaque. Ensuite, il convient de provoquer l'augmentation de la pression dans le récipient de sorte que le bouchon 3 soit poussé vers l'extérieur, ce qui a pour résultat qu'il vient en butée contre la plaque 7 et que la tige fait en même temps saillie par le trou central de la plaque. Il suffit ensuite de tourner le bouchon d'environ 90° pour l'empêcher de redescendre de nouveau lors d'une dépression.However, when the stem 11 of the plug has the T shape, it is important to ensure that it is during the introduction of the cap oriented as shown in Figure 2 to allow the subsequent passage of the rod through the central hole 10 of the plate. Then, increase the pressure in the container so that the plug 3 is pushed outwards, which has the result that it abuts against the plate 7 and that the rod does the same time protruding through the central hole of the plate. Then just turn the stopper of about 90 ° to prevent it from coming down again when of depression.

Le démontage de l'ensemble se fait dans l'ordre inverse. D'abord, il faut que la pression ait pu descendre sensiblement pour être pratiquement égale à la pression atmosphérique. Il faut ensuite commencer par tourner le bouchon d'environ 90° dans le cas d'une tige en T. Le bouchon est ensuite déplacé vers l'intérieur en poussant sur la tige et cela suffisamment pour que celle-ci soit entièrement dégagée du trou central 10 de la plaque 7. Ensuite, la plaque 7 peut être retirée de l'élément tubulaire afin de permettre le retrait du bouchon, ce qui donne finalement accès à l'intérieur de l'élément tubulaire.Disassembly of the assembly is done in reverse order. First, it the pressure must have dropped significantly to be practically equal to atmospheric pressure. Then start by turning the cap about 90 ° in the case of a rod in T. The plug is then moved inward by pushing on the rod and that enough so that it is completely free of central hole 10 in plate 7. Then plate 7 can be removed from the tubular member to allow removal of the plug, giving finally access to the interior of the tubular element.

Ainsi est obtenu un récipient doté de moyens de butée axiale du bouchon particulièrement simples à mettre en oeuvre et à fabriquer et qui en plus donne une sécurité sans faille pour l'opérateur qui ne risque pas de dégager l'ouverture 2 lorsqu'une surpression règne dans le récipient.Thus is obtained a container provided with axial stop means of the particularly simple plug to implement and manufacture and which in addition gives flawless security for the operator who does not risk to clear the opening 2 when an overpressure prevails in the container.

Bien entendu, l'invention n'est pas limitée aux exemples illustrés et décrits, mais peut être appliquée à tout récipient dans lequel les moyens décrits apportent un avantage.Of course, the invention is not limited to the examples illustrated and described, but can be applied to any container in which the means described provide an advantage.

Claims (8)

Récipient sous pression variable relié à un élément tubulaire (1) délimitant une ouverture (2) du récipient vers l'extérieur, ladite ouverture pouvant être fermée par un bouchon (3) pourvu de moyens d'étanchéité (5) et adapté pour être introduit par coulissement axial dans ledit élément tubulaire (1), ledit bouchon (3) étant associé à des moyens de butée axiale détachables (7) susceptibles de coopérer avec des moyens de blocage axial (8, 9) prévus dans ledit élément tubulaire (1) et permettant auxdits moyens de butée (7) de s'étendre transversalement dans celui-ci devant l'extrémité extérieure dudit bouchon (3) pour empêcher l'enlèvement de celui-ci lorsqu'une surpression règne dans le récipient, lesdits moyens de blocage axial (8, 9) desdits moyens de butée (7) comportant une première fente (8) dans la paroi de l'élément tubulaire (1) et une deuxième fente (9) diamétralement opposée à ladite première fente (8), lesdits moyens de butée (7) étant adaptés pour être introduits transversalement dans ledit élément tubulaire (1) par ladite première fente (8) et pour faire saillie en dehors dudit élément tubulaire par ladite deuxième fente (9), caractérisé par le fait que lesdits moyens de butée comportent une plaque allongée (7) dont l'une des grandes surfaces constitue une surface de butée pour le bouchon (3), que ladite plaque (7) comporte un trou central traversant (10), et que le bouchon (3) est à son extrémité extérieure pourvu d'une tige centrale (11) apte à faire saillie par ledit trou central (10) sous l'action d'une surpression dans le récipient, afin d'empêcher complètement le retrait desdits moyens de butée (7).Variable pressure container connected to a tubular element (1) delimiting an opening (2) of the container towards the outside, said opening being able to be closed by a plug (3) provided with sealing means (5) and adapted to be introduced by axial sliding in said tubular element (1), said plug (3) being associated with detachable axial stop means (7) capable of cooperating with axial locking means (8, 9) provided in said tubular element (1) and allowing said stop means (7) to extend transversely therein in front of the outer end of said stopper (3) to prevent removal thereof when an overpressure prevails in the container, said blocking means axial (8, 9) of said stop means (7) comprising a first slot (8) in the wall of the tubular element (1) and a second slot (9) diametrically opposite to said first slot (8), said means stop (7) both adapted to be introduced transversely into said tubular member (1) through said first slot (8) and to protrude outside said tubular member by said second slot (9), characterized in that said abutment means comprise an elongated plate (7) one of the large surfaces of which constitutes a stop surface for the plug (3), that said plate (7) has a central through hole (10), and that the plug (3) is at its outer end provided a central rod (11) capable of projecting through said central hole (10) under the action of an overpressure in the container, in order to completely prevent the withdrawal of said stop means (7). Récipient selon la revendication 1, caractérisé par le fait que ladite tige (11) a une forme cylindrique et que ledit trou central (10) de ladite plaque (7) présente une forme circulaire.Container according to claim 1, characterized in that said rod (11) has a cylindrical shape and that said central hole (10) of said plate (7) has a circular shape. Récipient selon la revendication 1, caractérisé par le fait que ladite tige (11) a une forme en T, que ledit trou central (10) de ladite plaque (7) présente une forme allongée permettant l'introduction de l'extrémité de la tige (11) à travers le trou, et interdisant son déplacement vers l'intérieur suite à une rotation d'environ 90° de la tige.Container according to claim 1, characterized in that said rod (11) has a T shape, that said central hole (10) of said plate (7) has an elongated shape allowing the introduction of the end of the rod (11) through the hole, and prohibiting its movement inward following a rotation of about 90 ° of the rod. Récipient selon la revendication 3, caractérisé par le fait que l'élément transversal (12) de la forme en T de la tige comporte deux méplats latéraux parallèles (13) permettant la prise par un outil pour faire tourner le bouchon.Container according to claim 3, characterized in that the transverse element (12) of the T-shape of the rod has two parallel lateral flats (13) allowing the grip by a tool to rotate the plug. Récipient selon l'une quelconque des revendications précédentes, caractérisé par le fait que ladite plaque (7) présente une extrémité avant à largeur réduite de manière à définir des épaulements (14) de part et d'autre de ladite plaque, lesdits épaulements étant destinés à venir en butée contre la surface intérieure dudit élément tubulaire (1) lors de l'introduction de la plaque (7) à travers lesdites fentes (8, 9).Container according to any one of the preceding claims, characterized in that said plate (7) has a reduced width front end so as to define shoulders (14) on either side of said plate, said shoulders being intended coming into abutment against the inner surface of said tubular element (1) during the introduction of the plate (7) through said slots (8, 9). Récipient selon l'une quelconque des revendications précédentes, caractérisé par le fait que ladite plaque (7) présente une extrémité avant biseautée.Container according to any one of the preceding claims, characterized in that the said plate (7) has a bevelled front end. Récipient selon l'une quelconque des revendications précédentes, caractérisé par le fait que ladite plaque (7) présente une extrémité arrière pourvue d'au moins un trou (15) permettant la prise par un outil pour le retrait de la plaque (7) en dehors dudit élément tubulaire (1).Container according to any one of the preceding claims, characterized in that the said plate (7) has a rear end provided with at least one hole (15) allowing the grip by a tool for removing the plate (7) in outside of said tubular element (1). Récipient selon l'une quelconque des revendications précédentes, caractérisé par le fait que ladite plaque (7) comporte au moins à son extrémité avant un rebord surélevé constituant un moyen de blocage transversal lorsque le bouchon (3) est en appui contre ladite surface de butée de ladite plaque (7).Container according to any one of the preceding claims, characterized in that the said plate (7) has at least at its front end a raised rim constituting a transverse locking means when the plug (3) is pressed against the said abutment surface of said plate (7).
EP03291037.4A 2002-05-16 2003-04-29 Receiver under variable pressure especially for condenser Expired - Lifetime EP1363087B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0206030A FR2839768B1 (en) 2002-05-16 2002-05-16 VARIABLE PRESSURE CONTAINER, ESPECIALLY HEAT EXCHANGER CONDENSER
FR0206030 2002-05-16

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EP1363087A1 true EP1363087A1 (en) 2003-11-19
EP1363087B1 EP1363087B1 (en) 2017-10-18

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US (1) US6871754B2 (en)
EP (1) EP1363087B1 (en)
FR (1) FR2839768B1 (en)

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CN104279911A (en) * 2013-07-11 2015-01-14 生态工厂有限公司 Sealing structure for heat exchanger and heat exchanger

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FR2798456A1 (en) * 1999-09-10 2001-03-16 Behr Gmbh & Co Collection container for condenser of air conditioning system for motor vehicle with inside of container accepts drier, which is exchangeable across opening closed by detachable cover
EP1132695A1 (en) * 2000-03-09 2001-09-12 Skg Italiana Spa Filter cartridge and condenser

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US6871754B2 (en) 2005-03-29
US20030226850A1 (en) 2003-12-11
FR2839768A1 (en) 2003-11-21
EP1363087B1 (en) 2017-10-18
FR2839768B1 (en) 2004-08-27

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