WO2001025669A1 - Articulated joint designed, in particular, to connect together two ducts circulating liquid or gas fluid - Google Patents
Articulated joint designed, in particular, to connect together two ducts circulating liquid or gas fluid Download PDFInfo
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- WO2001025669A1 WO2001025669A1 PCT/FR2000/002756 FR0002756W WO0125669A1 WO 2001025669 A1 WO2001025669 A1 WO 2001025669A1 FR 0002756 W FR0002756 W FR 0002756W WO 0125669 A1 WO0125669 A1 WO 0125669A1
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- Prior art keywords
- articulated joint
- end piece
- ring
- shoulder
- elastic member
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints; Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly-spherical engaging surfaces
- F16L27/06—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly-spherical engaging surfaces with special sealing means between the engaging surfaces
- F16L27/073—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly-spherical engaging surfaces with special sealing means between the engaging surfaces one of the cooperating surfaces forming the sealing means
Definitions
- the present invention relates to an articulated joint intended, in particular, to connect two pipes for the flow of liquid or gaseous fluid to each other.
- a female end piece having a part whose inner face is spherical, a male end piece received in the female end piece and having a shoulder in the vicinity of its end,
- articulated joint taught by this document does not include means for resiliently recalling the two end pieces in alignment with one another.
- the object of the present invention is to provide an articulated joint uniting the advantages of the two aforementioned joints, that is to say an articulated joint with three degrees of freedom comprising means for resiliently returning the two ends in alignment with one on the other.
- a female end piece having a part whose inner face is spherical, a male end piece received in the female end piece and having a shoulder in the vicinity of its end,
- an elastic thrust member interposed between said female end piece and said male end piece to urge said shoulder bearing against said ring and said external face of said ring against said internal face of said part, remarkable in that said elastic member is freely in abutment at at least one of its ends against one of said tips, without being fixed to said tip, so as to allow an axial rotation of said tip relative to said elastic member and to the other tip.
- the male and female ends are recalled elastically in alignment with one another, while being able to pivot axially with respect to one another.
- said elastic member is freely in abutment against two bearing surfaces opposite the female and male ends respectively,
- bearing surfaces is formed by said shoulder of said male end piece, said shoulder is a flange formed at the end of said male end piece, the other bearing surface is constituted by a second shoulder formed in said female end piece and extended by said part having a spherical internal face,
- said elastic member is chosen from the group comprising a helical spring, an elastic washer and an elastic bellows, - said ring is mounted freely on said male end piece,
- a layer of flexible and elastic material such as a graphite composite is interposed between said ring and said male end piece, said ring is formed of graphite,
- said ring comprises a central part formed from a material chosen from the group comprising graphite, metals and a ceramic material, and this ring includes a peripheral part formed in a sliding material such as PTFE.
- FIG. 1 shows a partial axial sectional view of a first embodiment of the articulated joint according to the invention
- - Figure 2 shows a partial axial sectional view of a second embodiment of the articulated joint according to the invention
- FIG. 3 shows a partial axial sectional view of a third embodiment of the articulated joint according to the invention.
- the articulated joint 1 comprises a female end piece 3 having a shoulder 5 extended by a part 7 of which at least the inner face is spherical.
- the female end piece 3 receives a male end piece 9 carrying a ring 11 whose outer face is spherical.
- the diameter of the outer face of the ring 11 corresponds substantially to the diameter of the inner face of the part 7.
- the end of the male end piece 9 includes a shoulder 13 in the form of a flange forming a stop for the ring 11.
- the ring 11 is freely mounted on the male end piece 9, that is to say with a slight clearance J.
- a layer of flexible and elastic material S such as a composite graphite is interposed between the ring 11 and the male end 9.
- a helical spring 15 is interposed between the shoulder 5 and the flange 13 while being freely in abutment at at least one of its ends (and preferably at its two ends) against one of these members, without being fixed to this one.
- the female 3 and male 9 ends can be made of a metal alloy. Part 7 of the female end piece 3 can be attached to the rest of this end piece by welding.
- the ring 11 can be formed from graphite.
- this ring may include a central part formed in a material such as graphite, metal or a ceramic material, and a peripheral part formed in a sliding material such as PTFE.
- FIG 2 shows a second embodiment of the articulated joint according to the invention.
- the identical or similar bodies to those of Figure 1 are designated by identical reference numerals followed by the letter "a”.
- This second embodiment differs from the previous essentially in that the spring 15 is replaced by an elastic washer 15a.
- This elastic washer has a periphery P which cooperates with the shoulder 5a formed in the female end piece 3a, and a boss B which cooperates with the flange 13a formed at the end of the male end piece 9a.
- the elastic washer 15a is freely in abutment at at least one of its ends (and preferably at its two ends) against the shoulder 5a or the collar 13a, without being fixed to these members.
- the shoulder 5a preferably extends along a plane transverse to the axis of the articulated joint, and the part 7a of the female end piece 3a is attached directly to this shoulder.
- FIG 3 shows a third embodiment of the articulated joint according to the invention.
- the identical or similar members to those of Figures 1 and 2 are designated by identical reference numerals followed by the letter "b".
- This third embodiment differs from the previous ones essentially in that the spring 15 and the elastic washer 15a are replaced by an elastic bellows 15b.
- this bellows is freely in abutment at at least one of its ends (and preferably at its two ends) against the shoulder 5b or the flange 13b, without being fixed to these members.
- the female end piece 3b prefferably includes an inner tube T which extends through the bellows 15b.
- the elastic member (spring 15, washer 15a, bellows 15b) interposed between the female ends 3, 3a, 3b and male 9, 9a, 9b on the one hand allows the flange 13, 13a, 13b to bear against the ring. 11, lia,
- the elastic member 15, 15a, 15b also makes it possible to resiliently recall the male and female ends in alignment with one another, owing to the fact that it bears against these two ends.
- this elastic member being freely in abutment at at least one of its ends against one of the female or male end pieces, without being fixed thereto, an axial rotation of this end piece is allowed relative to this elastic member and to the other tip. This gives an articulated joint with three degrees of freedom.
- the second embodiment is particularly space-saving, which can prove to be very advantageous for certain applications.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Description
JOINT ARTICULE DESTINE, NOTAMMENT, A RELIER ENTRE ELLES DEUX CONDUITES D'ECOULEMENT DE FLUIDE LIQUIDE OU GAZEUX La présente invention est relative à un joint articulé destiné, notamment, à relier entre elles deux conduites d'écoulement de fluide liquide ou gazeux. The present invention relates to an articulated joint intended, in particular, to connect two pipes for the flow of liquid or gaseous fluid to each other.
De tels joints sont utilisés dans certains domaines tels que l'aéronautique ou l'automobile lorsqu'il est nécessaire, au montage ou en service, de permettre un débattement angulaire entre deux conduites . On connaît du document FR 2 625 546 un joint articulé permettant d'assurer une telle liaison, comprenant :Such seals are used in certain fields such as aeronautics or the automobile when it is necessary, during assembly or in service, to allow an angular clearance between two pipes. Document FR 2 625 546 discloses an articulated joint enabling such a connection to be ensured, comprising:
- un embout femelle présentant une partie dont la face intérieure est sphérique, - un embout mâle reçu dans l'embout femelle et présentant un épaulement au voisinage de son extrémité,a female end piece having a part whose inner face is spherical, a male end piece received in the female end piece and having a shoulder in the vicinity of its end,
- une bague enfilée sur ledit embout mâle, dont la face extérieure est sphérique, eta ring threaded onto said male end-piece, the outer face of which is spherical, and
- un soufflet élastique interposé entre ledit embout femelle et ledit embout mâle pour solliciter ledit épaulement en appui contre ladite bague et ladite face extérieure de ladite bague contre ladite face intérieure de ladite partie.- An elastic bellows interposed between said female end piece and said male end piece to urge said shoulder bearing against said ring and said external face of said ring against said internal face of said part.
Le soufflet de ce joint articulé, qui est métallique, permet de rappeler elastiquement les deux embouts dans l'alignement l'un de l'autre.The bellows of this articulated joint, which is metallic, makes it possible to resiliently recall the two end pieces in alignment with one another.
Cependant, dans ce joint, le soufflet métallique est fixé aux embouts femelle et mâle et ne présente pas d'élasticité dans le sens circonférentiel , de sorte qu'une rotation axiale de ces embouts l'un par rapport à l'autre n'est pas possible: ce joint ne possède que deux degrés de liberté. On connaît du document US 1 434 631 un joint articulé à trois degrés de liberté, comprenant un embout femelle recevant un embout mâle, et dont l'élément élastique est un ressort hélicoïdal en simple appui à ses extrémités, d'une part contre une bague enfilée sur l'embout mâle, d'autre part contre un épaulement formé sur cet embout .However, in this joint, the metal bellows is fixed to the female and male end pieces and has no elasticity in the circumferential direction, so that an axial rotation of these end pieces relative to each other is not not possible: this joint has only two degrees of freedom. Document US Pat. No. 1,434,631 discloses an articulated joint with three degrees of freedom, comprising a female end piece receiving a male end piece, the elastic element of which is a helical spring which is simply pressed at its ends, on the one hand against a ring threaded on the male end piece, on the other hand against a shoulder formed on this end piece.
Cependant, le joint articulé enseigné par ce document ne comprend pas de moyen pour rappeler elastiquement les deux embouts dans l'alignement l'un de 1' autre .However, the articulated joint taught by this document does not include means for resiliently recalling the two end pieces in alignment with one another.
La présente invention a pour but de fournir un joint articulé réunissant les avantages des deux joints susmentionnés, c'est-à-dire un joint articulé à trois degrés de liberté comprenant des moyens pour rappeler elastiquement les deux embouts dans l'alignement l'un de 1 ' autre .The object of the present invention is to provide an articulated joint uniting the advantages of the two aforementioned joints, that is to say an articulated joint with three degrees of freedom comprising means for resiliently returning the two ends in alignment with one on the other.
On atteint ce but de l'invention avec un joint articulé destiné, notamment, à relier entre elles deux conduites d'écoulement de fluide liquide ou gazeux, comprenant :This object of the invention is achieved with an articulated joint intended, in particular, to connect two liquid or gaseous fluid flow conduits, comprising:
- un embout femelle présentant une partie dont la face intérieure est sphérique, un embout mâle reçu dans l'embout femelle et présentant un épaulement au voisinage de son extrémité,a female end piece having a part whose inner face is spherical, a male end piece received in the female end piece and having a shoulder in the vicinity of its end,
- une bague enfilée sur ledit embout mâle, dont la face extérieure est sphérique, eta ring threaded onto said male end-piece, the outer face of which is spherical, and
- un organe élastique de poussée interposé entre ledit embout femelle et ledit embout mâle pour solliciter ledit épaulement en appui contre ladite bague et .ladite face extérieure de ladite bague contre ladite face intérieure de ladite partie, remarquable en ce que ledit organe élastique est librement en appui à l'une au moins de ses extrémités contre l'un desdits embouts, sans être fixé audit embout, de manière à autoriser une rotation axiale dudit embout par rapport audit organe élastique et à l'autre embout.an elastic thrust member interposed between said female end piece and said male end piece to urge said shoulder bearing against said ring and said external face of said ring against said internal face of said part, remarkable in that said elastic member is freely in abutment at at least one of its ends against one of said tips, without being fixed to said tip, so as to allow an axial rotation of said tip relative to said elastic member and to the other tip.
Grâce à ces caractéristiques, les embouts mâle et femelle sont rappelés elastiquement dans l'alignement l'un de l'autre, tout en pouvant pivoter axialement l'un par rapport à 1 ' autre . Suivant d'autres caractéristiques de l'invention: ledit organe élastique est librement en appui contre deux surfaces d'appui en regard des embouts femelle et mâle respectivement,Thanks to these characteristics, the male and female ends are recalled elastically in alignment with one another, while being able to pivot axially with respect to one another. According to other characteristics of the invention: said elastic member is freely in abutment against two bearing surfaces opposite the female and male ends respectively,
- l'une desdites surfaces d'appui est constituée par ledit épaulement dudit embout mâle, ledit épaulement est une collerette formée à l'extrémité dudit embout mâle, l'autre surface d'appui est constituée par un deuxième épaulement formé dans ledit embout femelle et prolongé par ladite partie ayant une face interne sphérique,- one of said bearing surfaces is formed by said shoulder of said male end piece, said shoulder is a flange formed at the end of said male end piece, the other bearing surface is constituted by a second shoulder formed in said female end piece and extended by said part having a spherical internal face,
- ledit organe élastique est choisi dans le groupe comprenant un ressort hélicoïdal, une rondelle élastique et un soufflet élastique, - ladite bague est montée libre sur ledit embout mâle,- said elastic member is chosen from the group comprising a helical spring, an elastic washer and an elastic bellows, - said ring is mounted freely on said male end piece,
- une couche de matériau souple et élastique tel qu'un composite graphité est interposée entre ladite bague et ledit embout mâle, - ladite bague est formée en graphite,a layer of flexible and elastic material such as a graphite composite is interposed between said ring and said male end piece, said ring is formed of graphite,
- ladite bague comprend une partie centrale formée dans une matière choisie dans le groupe comprenant le graphite, les métaux et une matière céramique, et cette bague comprend une partie périphérique formée dans un matériau glissant tel que le PTFE .said ring comprises a central part formed from a material chosen from the group comprising graphite, metals and a ceramic material, and this ring includes a peripheral part formed in a sliding material such as PTFE.
D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description qui va suivre et à l'examen du dessin annexé, dans lequel :Other characteristics and advantages of the present invention will appear on reading the description which follows and on examining the appended drawing, in which:
- la figure 1 représente une vue en coupe axiale partielle d'un premier mode de réalisation du joint articulé selon l'invention, - la figure 2 représente une vue en coupe axiale partielle d'un deuxième mode de réalisation du joint articulé selon l'invention, et- Figure 1 shows a partial axial sectional view of a first embodiment of the articulated joint according to the invention, - Figure 2 shows a partial axial sectional view of a second embodiment of the articulated joint according to the invention, and
- la figure 3 représente une vue en coupe axiale partielle d'un troisième mode de réalisation du joint articulé selon l'invention.- Figure 3 shows a partial axial sectional view of a third embodiment of the articulated joint according to the invention.
On se reporte à présent à la figure 1, sur laquelle on voit que le joint articulé 1 selon l'invention comprend un embout femelle 3 présentant un épaulement 5 prolongé par une partie 7 dont au moins la face intérieure est sphérique.Referring now to Figure 1, on which we see that the articulated joint 1 according to the invention comprises a female end piece 3 having a shoulder 5 extended by a part 7 of which at least the inner face is spherical.
L'embout femelle 3 reçoit un embout mâle 9 portant une bague 11 dont la face extérieure est sphérique.The female end piece 3 receives a male end piece 9 carrying a ring 11 whose outer face is spherical.
Le diamètre de la face extérieure de la bague 11 correspond sensiblement au diamètre de la face intérieure de la partie 7.The diameter of the outer face of the ring 11 corresponds substantially to the diameter of the inner face of the part 7.
L'extrémité de l'embout mâle 9 comprend un épaulement 13 en forme de collerette formant butée pour la bague 11.The end of the male end piece 9 includes a shoulder 13 in the form of a flange forming a stop for the ring 11.
Selon une première variante (représentée figure 1) , la bague 11 est montée libre sur l'embout mâle 9, c'est- à-dire avec un léger jeu J.According to a first variant (shown in FIG. 1), the ring 11 is freely mounted on the male end piece 9, that is to say with a slight clearance J.
Selon une deuxième variante (voir figure 2) , une couche de matériau souple et élastique S tel qu'un composite graphité est interposée entre la bague 11 et l'embout mâle 9.According to a second variant (see FIG. 2), a layer of flexible and elastic material S such as a composite graphite is interposed between the ring 11 and the male end 9.
Un ressort hélicoïdal 15 est interposé entre l' épaulement 5 et la collerette 13 en étant librement en appui à l'une au moins de ses extrémités (et de préférence à ses deux extrémités) contre l'un de ces organes, sans être fixé à celui-ci.A helical spring 15 is interposed between the shoulder 5 and the flange 13 while being freely in abutment at at least one of its ends (and preferably at its two ends) against one of these members, without being fixed to this one.
Les embouts femelle 3 et mâle 9 peuvent être fabriqués dans un alliage métallique. La partie 7 de l'embout femelle 3 peut être rapportée sur le reste de cet embout par soudage .The female 3 and male 9 ends can be made of a metal alloy. Part 7 of the female end piece 3 can be attached to the rest of this end piece by welding.
La bague 11 peut être formée en graphite. En variante, cette bague peut comprendre une partie centrale formée dans une matière telle que du graphite, du métal ou une matière céramique, et une partie périphérique formée dans une matière glissante telle que le PTFE .The ring 11 can be formed from graphite. As a variant, this ring may include a central part formed in a material such as graphite, metal or a ceramic material, and a peripheral part formed in a sliding material such as PTFE.
On se reporte à présent à la figure 2, sur laquelle on a représenté un deuxième mode de réalisation du joint articulé selon l'invention. Sur cette figure, les organes identiques ou analogues à ceux de la figure 1 sont désignés par des références numériques identiques suivies de la lettre « a ».Referring now to Figure 2, which shows a second embodiment of the articulated joint according to the invention. In this figure, the identical or similar bodies to those of Figure 1 are designated by identical reference numerals followed by the letter "a".
Ce deuxième mode de réalisation diffère du précédent essentiellement en ce que le ressort 15 est remplacé par une rondelle élastique 15a.This second embodiment differs from the previous essentially in that the spring 15 is replaced by an elastic washer 15a.
Cette rondelle élastique présente une périphérie P qui coopère avec l' épaulement 5a formé dans l'embout femelle 3a, et un bossage B qui coopère avec la collerette 13a formée à l'extrémité de l'embout mâle 9a.This elastic washer has a periphery P which cooperates with the shoulder 5a formed in the female end piece 3a, and a boss B which cooperates with the flange 13a formed at the end of the male end piece 9a.
De même que le ressort 15, la rondelle élastique 15a est librement en appui à l'une au moins de ses extrémités (et de préférence à ses deux extrémités) contre l' épaulement 5a ou la collerette 13a, sans être fixée à ces organes .Like the spring 15, the elastic washer 15a is freely in abutment at at least one of its ends (and preferably at its two ends) against the shoulder 5a or the collar 13a, without being fixed to these members.
L' épaulement 5a s'étend de préférence selon un plan transversal à l'axe du joint articulé, et la partie 7a de l'embout femelle 3a est rapportée directement sur cet épaulement .The shoulder 5a preferably extends along a plane transverse to the axis of the articulated joint, and the part 7a of the female end piece 3a is attached directly to this shoulder.
On se reporte à présent à la figure 3, sur laquelle on a représenté un troisième mode de réalisation du joint articulé selon l'invention. Sur cette figure, les organes identiques ou analogues à ceux des figures 1 et 2 sont désignés par des références numériques identiques suivies de la lettre « b ».Referring now to Figure 3, which shows a third embodiment of the articulated joint according to the invention. In this figure, the identical or similar members to those of Figures 1 and 2 are designated by identical reference numerals followed by the letter "b".
Ce troisième mode de réalisation diffère des précédents essentiellement en ce que le ressort 15 et la rondelle élastique 15a sont remplacés par un soufflet élastique 15b.This third embodiment differs from the previous ones essentially in that the spring 15 and the elastic washer 15a are replaced by an elastic bellows 15b.
De même que le ressort 15 et la rondelle élastiqueAs well as the spring 15 and the elastic washer
15a, ce soufflet est librement en appui à l'une au moins de ses extrémités (et de préférence à ses deux extrémités) contre l' épaulement 5b ou la collerette 13b, sans être fixé à ces organes.15a, this bellows is freely in abutment at at least one of its ends (and preferably at its two ends) against the shoulder 5b or the flange 13b, without being fixed to these members.
On remarquera que l'on peut prévoir que l'embout femelle 3b comprenne un tube intérieur T qui s'étend à travers le soufflet 15b.It will be noted that provision can be made for the female end piece 3b to include an inner tube T which extends through the bellows 15b.
Les avantages du joint articulé selon l'invention résultent directement de la description qui précède.The advantages of the articulated joint according to the invention result directly from the above description.
L'organe élastique (ressort 15, rondelle 15a, soufflet 15b) interposé entre les embouts femelle 3, 3a, 3b et mâle 9, 9a, 9b permet d'une part de solliciter la collerette 13, 13a, 13b en appui contre la bague 11, lia,The elastic member (spring 15, washer 15a, bellows 15b) interposed between the female ends 3, 3a, 3b and male 9, 9a, 9b on the one hand allows the flange 13, 13a, 13b to bear against the ring. 11, lia,
11b, et d'autre part de solliciter la face extérieure de cette bague en appui glissant contre la face intérieure de la partie 7, 7a, 7b de l'embout femelle 3, 3a, 3b.11b, and on the other hand to request the external face of this ring in sliding support against the inner face of the part 7, 7a, 7b of the female end piece 3, 3a, 3b.
On obtient de la sorte l'étanchéité souhaitée vis-à- vis du fluide qui est susceptible de circuler à l'intérieur du joint articulé.The desired seal is thus obtained with respect to the fluid which is liable to circulate inside the articulated joint.
Bien que cette étanchéité ne soit pas parfaite, elle est suffisante pour des applications où un léger débit de fuite est autorisé (lignes d'échappement de véhicules automobiles et circuits de dégivrage d'aéronefs, notamment) .Although this seal is not perfect, it is sufficient for applications where a slight leakage rate is authorized (exhaust lines of motor vehicles and aircraft deicing circuits, in particular).
L'organe élastique 15, 15a, 15b permet en outre de rappeler elastiquement les embouts mâle et femelle dans l'alignement l'un de l'autre, du fait qu'il prend appui contre ces deux embouts. En outre, cet organe élastique étant librement en appui à l'une au moins de ses extrémités contre l'un des embouts femelle ou mâle, sans y être fixé, on autorise une rotation axiale de cet embout par rapport à cet organe élastique et à l'autre embout. On obtient de la sorte un joint articulé à trois degrés de liberté.The elastic member 15, 15a, 15b also makes it possible to resiliently recall the male and female ends in alignment with one another, owing to the fact that it bears against these two ends. In addition, this elastic member being freely in abutment at at least one of its ends against one of the female or male end pieces, without being fixed thereto, an axial rotation of this end piece is allowed relative to this elastic member and to the other tip. This gives an articulated joint with three degrees of freedom.
On marquera une préférence pour les premier et deuxième modes de réalisation, dans lesquels on utilise des organes élastiques (ressort 15, rondelle élastiqueA preference will be marked for the first and second embodiments, in which elastic members are used (spring 15, elastic washer
15a) à la fois moins coûteux et plus robustes qu'un soufflet.15a) both less expensive and more robust than a bellows.
On notera que le deuxième mode de réalisation est particulièrement peu encombrant, ce qui peut s'avérer très intéressant pour certaines applications.Note that the second embodiment is particularly space-saving, which can prove to be very advantageous for certain applications.
L'utilisation d'un tube intérieur T dans le joint selon l'invention permet d'améliorer l'écoulement du fluide dans ce joint.The use of an inner tube T in the joint according to the invention makes it possible to improve the flow of the fluid in this joint.
L'utilisation de graphite pour former la bague 11, lia, 11b et, en variante, d'un composite graphité pour former la couche S, permet de renforcer l'étanchéité du joint selon l'invention, étant donné le module d'élasticité élevé du graphite et la bonne tenue de ce dernier aux variations de température. Par ailleurs, l'utilisation d'un matériau glissant tel que le PTFE à la périphérie de la bague 11, lia, 11b permet d'éviter le grippage du joint selon l'invention.The use of graphite to form the ring 11, 11a, 11b and, as a variant, of a graphite composite for forming the layer S makes it possible to strengthen the seal of the joint according to the invention, given the high elastic modulus of the graphite and the good resistance of the latter to temperature variations. Furthermore, the use of a sliding material such as PTFE at the periphery of the ring 11, 11a, 11b makes it possible to avoid seizing of the seal according to the invention.
Bien entendu, la présente invention n'est pas limitée aux modes de réalisation décrits et représentés, fournis à titre d'exemples illustratifs et non limitatifs . Of course, the present invention is not limited to the embodiments described and shown, provided by way of illustrative and nonlimiting examples.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU76728/00A AU7672800A (en) | 1999-10-04 | 2000-10-04 | Articulated joint designed, in particular, to connect together two ducts circulating liquid or gas fluid |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR99/12358 | 1999-10-04 | ||
| FR9912358A FR2799260B1 (en) | 1999-10-04 | 1999-10-04 | ARTICULATED JOINT, IN PARTICULAR FOR CONNECTING BETWEEN TWO FLOW LINES OF LIQUID OR GASEOUS FLUID |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001025669A1 true WO2001025669A1 (en) | 2001-04-12 |
Family
ID=9550550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2000/002756 Ceased WO2001025669A1 (en) | 1999-10-04 | 2000-10-04 | Articulated joint designed, in particular, to connect together two ducts circulating liquid or gas fluid |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU7672800A (en) |
| FR (1) | FR2799260B1 (en) |
| WO (1) | WO2001025669A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7995904B2 (en) | 2005-04-07 | 2011-08-09 | Nds Limited | Trick mode system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1411289A1 (en) * | 2002-10-17 | 2004-04-21 | Meggitt (U.K.) Limited | Flexible coupling |
| EP1441166A3 (en) * | 2002-10-17 | 2004-08-04 | Meggitt (U.K.) Limited | Flexible coupling |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1434631A (en) * | 1921-01-22 | 1922-11-07 | James J Reynolds | Flexible pipe joint |
| DE3727915A1 (en) * | 1987-08-21 | 1989-03-02 | Opel Adam Ag | Articulated connection |
| FR2625546A1 (en) | 1988-01-05 | 1989-07-07 | Acc Jonchere Sa | ROTARY JOINT |
| FR2644552A1 (en) * | 1988-01-05 | 1990-09-21 | Acc Jonchere | Seal with ball joint action |
| DE19653906A1 (en) * | 1996-12-21 | 1998-06-25 | Daimler Benz Ag | Device for connecting two tubular line parts |
| DE19731367A1 (en) * | 1997-07-22 | 1999-02-11 | Daimler Benz Ag | Device for connecting two tubular line parts |
-
1999
- 1999-10-04 FR FR9912358A patent/FR2799260B1/en not_active Expired - Lifetime
-
2000
- 2000-10-04 WO PCT/FR2000/002756 patent/WO2001025669A1/en not_active Ceased
- 2000-10-04 AU AU76728/00A patent/AU7672800A/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1434631A (en) * | 1921-01-22 | 1922-11-07 | James J Reynolds | Flexible pipe joint |
| DE3727915A1 (en) * | 1987-08-21 | 1989-03-02 | Opel Adam Ag | Articulated connection |
| FR2625546A1 (en) | 1988-01-05 | 1989-07-07 | Acc Jonchere Sa | ROTARY JOINT |
| FR2644552A1 (en) * | 1988-01-05 | 1990-09-21 | Acc Jonchere | Seal with ball joint action |
| DE19653906A1 (en) * | 1996-12-21 | 1998-06-25 | Daimler Benz Ag | Device for connecting two tubular line parts |
| DE19731367A1 (en) * | 1997-07-22 | 1999-02-11 | Daimler Benz Ag | Device for connecting two tubular line parts |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7995904B2 (en) | 2005-04-07 | 2011-08-09 | Nds Limited | Trick mode system |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2799260B1 (en) | 2001-12-07 |
| FR2799260A1 (en) | 2001-04-06 |
| AU7672800A (en) | 2001-05-10 |
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