FR2929642A1 - Lubricant i.e. oil, supply tube for engine of vehicle, has articulated sealing connection comprising male and female parts for authorizing translation, rotation and pivoting of tubular sections with respect to each other - Google Patents
Lubricant i.e. oil, supply tube for engine of vehicle, has articulated sealing connection comprising male and female parts for authorizing translation, rotation and pivoting of tubular sections with respect to each other Download PDFInfo
- Publication number
- FR2929642A1 FR2929642A1 FR0852308A FR0852308A FR2929642A1 FR 2929642 A1 FR2929642 A1 FR 2929642A1 FR 0852308 A FR0852308 A FR 0852308A FR 0852308 A FR0852308 A FR 0852308A FR 2929642 A1 FR2929642 A1 FR 2929642A1
- Authority
- FR
- France
- Prior art keywords
- articulated
- connection
- tube
- male
- flared portion
- 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
Links
- 239000000314 lubricant Substances 0.000 title claims description 4
- 238000007789 sealing Methods 0.000 title abstract 2
- 239000010705 motor oil Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 abstract 1
- 239000000806 elastomer Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 5
- 241000538562 Banjos Species 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
-
- 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
- F16L27/026—Universal and axially displaceable joints
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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
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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
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/1017—Joints with sleeve or socket
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
- F01M2011/021—Arrangements of lubricant conduits for lubricating auxiliaries, e.g. pumps or turbo chargers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supercharger (AREA)
Abstract
Description
TUBE D'ALIMENTATION EN LUBRIFIANT D'UN TURBOCOMPRESSEUR LUBRICANT SUPPLY TUBE OF A TURBOCHARGER
DOMAINE DE L'INVENTION La présente invention concerne un tube d'alimentation pour la lubrification du 5 turbocompresseur d'un moteur, par exemple un moteur de véhicule. FIELD OF THE INVENTION The present invention relates to a feed tube for lubricating the turbocharger of an engine, for example a vehicle engine.
ARRIERE PLAN DE L'INVENTION Le turbocompresseur est un organe dans lequel des éléments tournent à une vitesse élevée et nécessitent de ce fait une lubrification efficace. A cet effet, il 10 existe généralement un conduit dérivé du circuit d'huile du moteur permettant d'amener l'huile au turbocompresseur. On utilise typiquement un tube métallique coudé disposé entre le moteur et le turbocompresseur. Dans les conditions normales de fonctionnement, la pression d'huile est de l'ordre de 6 bars, mais les pressions atteintes lors des essais de validation atteignent 50 bars. Par ailleurs, 15 dans les conditions de fonctionnement, la turbine présente une température de l'ordre de 800°C rayonnant sur les pièces situées à proximité. Ces dernières peuvent atteindre une température de l'ordre de 250°C suivant leur distance avec la turbine. Les connexions de ce tube, au turbocompresseur d'une part, et au moteur 20 d'autre part, sont soumises à des contraintes sévères. En effet, l'ensemble est soumis à des vibrations importantes. Par ailleurs, il subit des variations de températures élevées entre l'arrêt et le fonctionnement. En outre, à cause des tolérances de fabrication, les positions des jonctions peuvent différer. Pour ces raisons, il est impossible d'envisager une fixation rigide pour un tel 25 tube ; il est au contraire indispensable de lui conférer une certaine flexibilité pour répondre aux contraintes de montage, supporter les dilatations thermiques et les vibrations. Diverses solutions ont déjà été mises en oeuvre à cet effet. Par exemple, le document DE 196 36 841 décrit une connexion flexible entre deux tubes rigides, 30 consistant en un tuyau flexible raccordant ces deux tubes. Toutefois, un tel tube constitue une pièce supplémentaire relativement onéreuse et ne permet en outre que de faibles débattements. Le document EP 0 633 991 décrit un joint flexible consistant en un coussinet souple occupant tout le volume formé par un renflement de l'un des tubes, l'autre tube présentant une nervure engagée dans une gorge ménagée dans le coussinet de manière à pivoter sur celui-ci. Toutefois, en raison de sa géométrie, le coussinet est moulé ou surmoulé dans le tube : sa fabrication nécessite donc un outillage spécifique et allonge la durée d'assemblage du tube. En outre, une telle configuration des tubes et du coussinet n'autorise pas de mouvement axial, c'est-à-dire de translation d'un tube par rapport à l'autre. D'autre documents mentionnent des liaisons étanches entre deux tubes, mais n'autorisant pas de mouvement relatif d'un tube par rapport à l'autre. C'est le cas notamment du document US 5,890,287, qui décrit une connexion rigide entre deux tubes, comprenant un joint torique disposé entre deux nervures formées sur l'un des tubes, ou encore du document US 6,286,556 qui décrit un autre mode de connexion rigide entre deux tubes. Un premier but de l'invention est donc de concevoir un tube présentant au moins une liaison étanche articulée, autorisant plusieurs degrés de liberté, en pivotement, en rotation et en translation. Un autre but de l'invention est de réaliser une liaison simple et peu onéreuse. BACKGROUND OF THE INVENTION The turbocharger is a member in which members rotate at a high speed and thereby require efficient lubrication. For this purpose, there is generally a conduit derived from the engine oil circuit for bringing the oil to the turbocharger. A bent metal tube is typically used between the engine and the turbocharger. Under normal operating conditions, the oil pressure is of the order of 6 bars, but the pressures reached during the validation tests reach 50 bars. Moreover, under the operating conditions, the turbine has a temperature of about 800 ° C. radiating on the parts located nearby. These can reach a temperature of the order of 250 ° C according to their distance with the turbine. The connections of this tube, the turbocharger on the one hand, and the motor 20 on the other hand, are subject to severe constraints. Indeed, the whole is subject to significant vibrations. In addition, it experiences high temperature variations between shutdown and operation. In addition, because of manufacturing tolerances, the positions of the junctions may differ. For these reasons, it is impossible to envisage rigid fixation for such a tube; on the contrary, it is essential to give it some flexibility to meet the mounting constraints, withstand thermal expansion and vibration. Various solutions have already been implemented for this purpose. For example, DE 196 36 841 discloses a flexible connection between two rigid tubes, consisting of a flexible hose connecting these two tubes. However, such a tube is an additional piece relatively expensive and also allows only low deflections. EP 0 633 991 discloses a flexible seal consisting of a flexible pad occupying the entire volume formed by a bulge of one of the tubes, the other tube having a rib engaged in a groove in the pad so as to pivot on this one. However, because of its geometry, the pad is molded or overmolded in the tube: its manufacture therefore requires specific tools and lengthens the assembly time of the tube. In addition, such a configuration of the tubes and the pad does not allow axial movement, that is to say of translation of a tube relative to the other. Other documents mention sealed connections between two tubes, but not allowing relative movement of one tube relative to the other. This is particularly the case of US 5,890,287, which describes a rigid connection between two tubes, comprising an O-ring disposed between two ribs formed on one of the tubes, or US 6,286,556 which describes another rigid connection mode between two tubes. A first object of the invention is therefore to design a tube having at least one articulated tight connection, allowing several degrees of freedom, pivoting, rotating and translational. Another object of the invention is to provide a simple and inexpensive connection.
BREVE DESCRIPTION DE L'INVENTION A cet effet, l'invention propose un tube d'alimentation en lubrifiant du turbocompresseur d'un moteur, disposé entre le turbocompresseur et le circuit d'huile du moteur, comprenant deux tronçons tubulaires reliés par une liaison étanche articulée, ledit tube étant caractérisé en ce que ladite liaison étanche articulée comprend une partie mâle et une partie femelle agencées de manière à autoriser la translation, la rotation et le pivotement d'un tronçon tubulaire par rapport à l'autre. De manière particulièrement avantageuse, la partie femelle de la liaison étanche articulée comprend une portion évasée du premier tronçon tubulaire, la partie mâle de ladite liaison comprend une gorge annulaire s'étendant sur la paroi externe du deuxième tronçon tubulaire, un joint flexible est logé dans la gorge annulaire, et la partie mâle est insérée dans la partie femelle de telle sorte que le joint est en contact permanent avec la paroi interne de la portion évasée. Le joint flexible est de préférence un joint torique élastomère. Selon un mode préféré de réalisation de l'invention, la partie mâle de la liaison étanche articulée comprend une collerette s'étendant vers l'extérieur, adjacente à la gorge, et de diamètre externe inférieur au diamètre interne de la portion évasée du premier tronçon tubulaire, de telle sorte que lorsque l'angle de pivotement est inférieur à un angle maximal de pivotement, ladite collerette n'est pas en contact avec la paroi interne de la portion évasée, et que lorsque l'angle de pivotement est égal audit angle maximal, la collerette est en butée contre la paroi interne de la portion évasée. La portion évasée du premier tronçon tubulaire présente avantageusement un rétrécissement à son extrémité. Enfin, le diamètre intérieur des premier et deuxième tronçons tubulaires est 10 typiquement compris entre 4 et 16 mm. BRIEF DESCRIPTION OF THE INVENTION To this end, the invention proposes a tube for supplying lubricant to the turbocharger of an engine, arranged between the turbocharger and the engine oil circuit, comprising two tubular sections connected by a leaktight connection. articulated, said tube being characterized in that said articulated waterproof connection comprises a male part and a female part arranged to allow the translation, rotation and pivoting of a tubular section relative to the other. Particularly advantageously, the female part of the articulated tight connection comprises a flared portion of the first tubular section, the male part of said connection comprises an annular groove extending on the outer wall of the second tubular section, a flexible seal is housed in the annular groove, and the male part is inserted into the female part so that the seal is in permanent contact with the inner wall of the flared portion. The flexible seal is preferably an elastomeric O-ring. According to a preferred embodiment of the invention, the male part of the articulated waterproof connection comprises an outwardly extending collar, adjacent to the groove, and of external diameter less than the internal diameter of the flared portion of the first section. tubular, such that when the pivot angle is less than a maximum pivot angle, said flange is not in contact with the inner wall of the flared portion, and that when the pivot angle is equal to said angle maximum, the collar is in abutment against the inner wall of the flared portion. The flared portion of the first tubular section advantageously has a narrowing at its end. Finally, the inside diameter of the first and second tubular sections is typically between 4 and 16 mm.
BREVE DESCRIPTION DES FIGURES D'autres caractéristiques et avantages de l'invention ressortiront de la description détaillée, en référence aux dessins annexés sur lesquels : 15 - la figure 1 illustre une vue d'ensemble du tube ; - la figure 2 illustre le détail de la liaison étanche articulée ; - la figure 3 illustre les degrés de liberté en translation et en rotation de la liaison articulée. - la figure 4 illustre la liaison étanche articulée en position de pivotement. 20 DESCRIPTION DETAILLEE DE L'INVENTION En référence à la figure 1, le tube 1 conforme à l'invention comprend principalement deux tronçons tubulaires 10 et 11 reliés par une liaison étanche 12 articulée qui sera décrite en détail plus bas. 25 Les tronçons tubulaires sont typiquement obtenus à partir de tubes métalliques, de diamètre intérieur compris entre 4 et 16 mm et d'épaisseur de l'ordre de 0,3 à 2 mm. La longueur du tube 1 assemblé dépend de la configuration du moteur et des emplacements respectifs du turbocompresseur et du circuit d'huile. Elle est 30 typiquement de l'ordre de 10 à 100 cm. De même, la géométrie tridimensionnelle du tube 1 est fonction de la disposition du turbocompresseur par rapport au circuit d'huile ; toutefois, le tube 1 n'est généralement pas rectiligne mais est souvent coudé en plusieurs points. BRIEF DESCRIPTION OF THE FIGURES Other features and advantages of the invention will become apparent from the detailed description, with reference to the accompanying drawings in which: - Figure 1 illustrates an overall view of the tube; FIG. 2 illustrates the detail of the articulated waterproof connection; - Figure 3 illustrates the degrees of freedom in translation and rotation of the articulated connection. - Figure 4 illustrates the articulated tight connection in the pivoting position. DETAILED DESCRIPTION OF THE INVENTION Referring to FIG. 1, the tube 1 according to the invention mainly comprises two tubular sections 10 and 11 connected by an articulated tight connection 12 which will be described in detail below. The tubular sections are typically obtained from metal tubes, with an inside diameter of between 4 and 16 mm and a thickness of about 0.3 to 2 mm. The length of the assembled tube 1 depends on the configuration of the engine and the respective locations of the turbocharger and the oil circuit. It is typically of the order of 10 to 100 cm. Similarly, the three-dimensional geometry of the tube 1 is a function of the disposition of the turbocharger with respect to the oil circuit; however, the tube 1 is generally not straight but is often bent in several points.
Le parcours des tronçons tubulaires 10 et 11 est réalisé par cintrage, qui leur confère la géométrie tridimensionnelle souhaitée. Par ailleurs, d'autres techniques peuvent être employées pour augmenter ou restreindre localement leur section par déformation à froid du tube. The path of the tubular sections 10 and 11 is made by bending, which gives them the desired three-dimensional geometry. In addition, other techniques can be used to increase or locally restrict their section by cold deformation of the tube.
Le premier tronçon tubulaire 10 est relié par exemple au turbocompresseur. Il comprend à cet effet, à son extrémité côté turbocompresseur un raccord du type banjo, bride ou vissé. En référence à la figure 2, du côté de la liaison articulée 12, le tronçon tubulaire 10 est élargi de manière à former une portion 100 dont le diamètre intérieur est légèrement supérieur au diamètre extérieur du tronçon 10 pour assurer un coulissement entre les deux tubes, sur une longueur de 20 mm environ suivant le déplacement en translation nécessaire. Cette portion évasée 100 constitue la partie femelle de la liaison articulée 12. Le deuxième tronçon tubulaire 11 est relié au circuit d'huile du moteur. The first tubular section 10 is connected for example to the turbocharger. It comprises for this purpose, at its end turbocharger side a banjo type connection, flange or screwed. With reference to FIG. 2, on the articulated connection 12 side, the tubular section 10 is widened so as to form a portion 100 whose inside diameter is slightly greater than the outside diameter of the section 10 to ensure a sliding between the two tubes, over a length of about 20 mm depending on the translational movement required. This flared portion 100 constitutes the female part of the articulated connection 12. The second tubular section 11 is connected to the engine oil circuit.
Comme le tronçon 10, ce tronçon 11 peut être fixé au circuit d'huile par un raccord du type banjo, bride ou vissé. Du côté de la liaison articulée 12, l'extrémité du tronçon tubulaire 11 subit une déformation, par exemple par formage à froid, de nature à former une gorge annulaire 110. Like the section 10, this section 11 can be attached to the oil circuit by a connection of the banjo type, flange or screwed. On the side of the articulated connection 12, the end of the tubular section 11 undergoes deformation, for example by cold forming, such as to form an annular groove 110.
On forme également une collerette 111 adjacente à la gorge annulaire du côté opposé à l'extrémité du tronçon 11. Cette portion du tronçon 11 constitue la partie mâle de la liaison articulée 12. La gorge annulaire 110 présente typiquement un diamètre compris entre 85 et 100% du diamètre extérieur du tube. La distance entre la gorge 110 et l'extrémité du tronçon 11 est de l'ordre de la moitié du diamètre du tube. Enfin, le diamètre extérieur de la collerette 111 est compris entre 115 et 130% du diamètre extérieur du tube. Un joint flexible 13 est ensuite disposé dans la gorge annulaire 110. La collerette 111 a pour fonction de le maintenir dans la gorge. Le joint flexible est de préférence un joint torique en élastomère, le diamètre et la section du tore étant adaptés au tube. La dureté du joint est avantageusement supérieure ou égale à 40 shore A. L'assemblage du premier et du deuxième tronçon est effectué par l'insertion de la partie mâle dans la partie femelle, puis le formage de l'extrémité de la portion évasée 100 du premier tronçon, de telle sorte que ce rétrécissement 101 empêche le démontage de la liaison articulée 12. Le tube comprend donc une liaison étanche articulée autorisant davantage de degrés de liberté que dans les dispositifs de l'art antérieur, tout en étant de conception simple et peu onéreuse. La liaison étanche articulée 12 autorise en effet la translation, la rotation et le pivotement d'un tronçon tubulaire par rapport à l'autre. Par translation, on entend un déplacement selon la direction axiale, c'est-à-dire parallèle à l'axe x représenté à la figure 3. La liaison articulée autorise un déplacement d relatif des deux tronçons de l'ordre de 20 mm environ. Par rotation, on entend une rotation autour de l'axe x commun aux parties mâle et femelle. La liaison articulée autorise une rotation d'un angle a de 360°. Par pivotement, on entend la rotation dans un plan d'un tronçon par rapport à l'autre, les axes des parties mâle et femelle n'étant alors plus confondus. En référence à la figure 4, l'angle de pivotement est défini par l'angle R entre les axes des parties mâle et femelle. La liaison étanche articulée autorise un angle maximal de pivotement qui est fonction des diamètres 101 et 111 et de la course en translation. Le pivotement maximal est atteint lorsque la paroi interne de la portion évasée 100 vient en butée avec la collerette 111. A flange 111 is also formed adjacent the annular groove on the side opposite the end of the section 11. This portion of the section 11 constitutes the male part of the articulated connection 12. The annular groove 110 typically has a diameter of between 85 and 100 % of the outside diameter of the tube. The distance between the groove 110 and the end of the section 11 is of the order of half the diameter of the tube. Finally, the outer diameter of the flange 111 is between 115 and 130% of the outer diameter of the tube. A flexible seal 13 is then placed in the annular groove 110. The flange 111 serves to keep it in the groove. The flexible seal is preferably an elastomeric O-ring, the diameter and the section of the torus being adapted to the tube. The hardness of the seal is advantageously greater than or equal to 40 shore A. The assembly of the first and the second section is carried out by inserting the male part into the female part and then forming the end of the flared portion 100 of the first section, so that this constriction 101 prevents disassembly of the articulated connection 12. The tube thus comprises a hinged connection allowing more degrees of freedom than in the devices of the prior art, while being of simple design and inexpensive. The articulated tight connection 12 allows the translation, rotation and pivoting of one tubular section relative to the other. By translation means displacement in the axial direction, that is to say parallel to the x axis shown in Figure 3. The articulated connection allows a relative displacement of the two sections of the order of about 20 mm . Rotation means a rotation about the x axis common to the male and female parts. The articulated connection allows a rotation of an angle of 360 °. Pivoting means the rotation in a plane of one section relative to the other, the axes of the male and female parts are then no longer confused. With reference to FIG. 4, the pivot angle is defined by the angle R between the axes of the male and female parts. The articulated watertight connection allows a maximum pivoting angle which is a function of the diameters 101 and 111 and the translation travel. The maximum pivoting is achieved when the inner wall of the flared portion 100 abuts with the flange 111.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0852308A FR2929642B1 (en) | 2008-04-07 | 2008-04-07 | LUBRICANT SUPPLY TUBE OF A TURBOCHARGER. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0852308A FR2929642B1 (en) | 2008-04-07 | 2008-04-07 | LUBRICANT SUPPLY TUBE OF A TURBOCHARGER. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2929642A1 true FR2929642A1 (en) | 2009-10-09 |
| FR2929642B1 FR2929642B1 (en) | 2010-12-31 |
Family
ID=39880781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0852308A Active FR2929642B1 (en) | 2008-04-07 | 2008-04-07 | LUBRICANT SUPPLY TUBE OF A TURBOCHARGER. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2929642B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032022A (en) * | 2011-01-24 | 2011-04-27 | 潍柴动力股份有限公司 | Pressure oil pipe and engine comprising same |
| WO2016139004A1 (en) * | 2015-03-04 | 2016-09-09 | Contitech Techno-Chemie Gmbh | Connection arrangement |
| CN108798824A (en) * | 2018-06-19 | 2018-11-13 | 浙江吉利控股集团有限公司 | A kind of oil trap |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2836436A (en) * | 1955-01-24 | 1958-05-27 | R L A P I Soc | Coupling joined by fluid-pressure-deformed packing |
| US3596934A (en) * | 1969-05-06 | 1971-08-03 | Herbert A De Cenzo | Flexible fluidtight coupling for tubes |
| US5024454A (en) * | 1987-08-25 | 1991-06-18 | Mcgilp Kenneth J | Compensating seal |
| WO1993020376A1 (en) * | 1992-04-02 | 1993-10-14 | Aeroquip Corporation | Flexible joint |
| DE19743183A1 (en) * | 1997-09-30 | 1999-04-22 | Uponor Anger Gmbh | Pipe coupling with second pipe with insertion end |
| EP0965784A1 (en) * | 1998-06-15 | 1999-12-22 | Internova International Innovation Company B.V. | Protective cover for cables or conduits |
-
2008
- 2008-04-07 FR FR0852308A patent/FR2929642B1/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2836436A (en) * | 1955-01-24 | 1958-05-27 | R L A P I Soc | Coupling joined by fluid-pressure-deformed packing |
| US3596934A (en) * | 1969-05-06 | 1971-08-03 | Herbert A De Cenzo | Flexible fluidtight coupling for tubes |
| US5024454A (en) * | 1987-08-25 | 1991-06-18 | Mcgilp Kenneth J | Compensating seal |
| WO1993020376A1 (en) * | 1992-04-02 | 1993-10-14 | Aeroquip Corporation | Flexible joint |
| DE19743183A1 (en) * | 1997-09-30 | 1999-04-22 | Uponor Anger Gmbh | Pipe coupling with second pipe with insertion end |
| EP0965784A1 (en) * | 1998-06-15 | 1999-12-22 | Internova International Innovation Company B.V. | Protective cover for cables or conduits |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032022A (en) * | 2011-01-24 | 2011-04-27 | 潍柴动力股份有限公司 | Pressure oil pipe and engine comprising same |
| CN102032022B (en) * | 2011-01-24 | 2012-08-08 | 潍柴动力股份有限公司 | Pressure oil pipe and engine comprising same |
| WO2016139004A1 (en) * | 2015-03-04 | 2016-09-09 | Contitech Techno-Chemie Gmbh | Connection arrangement |
| CN108798824A (en) * | 2018-06-19 | 2018-11-13 | 浙江吉利控股集团有限公司 | A kind of oil trap |
| CN108798824B (en) * | 2018-06-19 | 2019-11-12 | 浙江吉利控股集团有限公司 | A kind of oil trap |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2929642B1 (en) | 2010-12-31 |
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