FR2891890A1 - Oil leakage preventing device for turbocharger of motor vehicle engine, has socketed screw vertically compressing joints on surface in contact with turbocharger and on edges of ring, and joints extending radially towards exterior of coupler - Google Patents
Oil leakage preventing device for turbocharger of motor vehicle engine, has socketed screw vertically compressing joints on surface in contact with turbocharger and on edges of ring, and joints extending radially towards exterior of coupler Download PDFInfo
- Publication number
- FR2891890A1 FR2891890A1 FR0553030A FR0553030A FR2891890A1 FR 2891890 A1 FR2891890 A1 FR 2891890A1 FR 0553030 A FR0553030 A FR 0553030A FR 0553030 A FR0553030 A FR 0553030A FR 2891890 A1 FR2891890 A1 FR 2891890A1
- Authority
- FR
- France
- Prior art keywords
- ring
- turbocharger
- joints
- contact
- seals
- 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.)
- Pending
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Classifications
-
- 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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/005—Branching pipes; Joining pipes to walls adjustable and comprising a hollow threaded part in an opening
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supercharger (AREA)
Abstract
Description
DISPOSITIF CONTRE LES PROJECTIONS D'UN RACCORD HYDRAULIQUEDEVICE AGAINST THE PROJECTIONS OF A HYDRAULIC CONNECTION
La présente invention concerne un dispositif contre les projections d'un raccord hydraulique, et en particulier d'un raccord de type banjo . The present invention relates to a device against projections of a hydraulic connection, and in particular a banjo type connection.
Certains systèmes mécaniques nécessitent une alimentation hydraulique sous pression, notamment les organes de moteur de véhicules. L'application privilégiée de l'invention est l'alimentation de turbocompresseurs. Le dispositif utilisé pour les raccord banjo comprend une vis creuse vissée dans un alésage de l'organe à alimenter, une bague reliant le conduit d'alimentation à la vis creuse et des joints circulaires entre la bague, la vis creuse et l'organe à alimenter. Cependant le liquide sous pression parvient parfois à passer les joints, et des projections peuvent se produire vers l'extérieur du circuit hydraulique. Some mechanical systems require a hydraulic power supply under pressure, in particular the motor vehicle components. The preferred application of the invention is the feeding of turbochargers. The device used for the banjo fitting comprises a hollow screw screwed into a bore of the member to be supplied, a ring connecting the supply duct to the hollow screw and circular seals between the ring, the hollow screw and the body. feed. However, the pressurized fluid sometimes manages to pass the seals, and projections may occur to the outside of the hydraulic circuit.
Un problème de sécurité peut alors se poser. Le liquide peut entrer en contact avec des parties à hautes températures du moteur, et s'enflammer s'il s'agit d'un produit inflammable comme de l'huile par exemple. Le but de la présente invention, est de fournir un dispositif contre les projections au niveau d'un raccord hydraulique. A security problem can arise. The liquid may come into contact with high temperature parts of the engine, and ignite if it is a flammable product such as oil for example. The object of the present invention is to provide a device against projections at a hydraulic connection.
Dans ce but, l'invention fournit une bague comportant deux épaulements de même longueur sur sa face interne et en contact avec la paroi externe de la vis creuse, formant ainsi deux décrochages par rapport aux bords supérieur et inférieur de la bague, et un espace annulaire situé entre les deux épaulements. For this purpose, the invention provides a ring having two shoulders of the same length on its inner face and in contact with the outer wall of the hollow screw, thus forming two stalls with respect to the upper and lower edges of the ring, and a space ring located between the two shoulders.
La bague comporte aussi une découpe permettant le sertissage du conduit d'alimentation sur l'espace annulaire. Des joints circulaires comportent un premier rebord sur leur périphérie intérieure, dont la forme est complémentaire à celle des décrochages de la bague. The ring also has a cutout for crimping the supply duct on the annular space. Circular seals have a first flange on their inner periphery, the shape of which is complementary to that of the stalls of the ring.
Ces joints circulaires s'étendent radialement vers l'extérieur du raccord au-delà de la bague, fournissant une plus grande surface de contact avec les autres éléments du raccord. Les joints comportent aussi un second rebord sur leur périphérie extérieure pouvant être sensiblement parallèle au premier rebord et de telle sorte que les joints ont un profil en forme de U . La hauteur du rebord extérieur des joints circulaires est variable de façon à laisser un passage suffisant pour le conduit d'alimentation. These circular seals extend radially outwardly of the fitting beyond the ring, providing a greater contact area with the other members of the fitting. The seals also include a second flange on their outer periphery which may be substantially parallel to the first flange and such that the seals have a U-shaped profile. The height of the outer rim of the circular seals is variable so as to leave a sufficient passage for the supply duct.
L'invention sera désormais décrite par un exemple en référence au dessin annexé suivant : - La figure 1 est une vue en coupe d'un raccord intégrant le dispositif de l'invention. Un turbocompresseur 10 d'un moteur comporte un alésage 12 d'arrivée d'huile sous pression. L'huile est acheminée vers le turbocompresseur 10 par un conduit 14. Le conduit 14 est raccordé à l'arrivée 12 du turbocompresseur 10 à l'aide un raccord de type banjo 16. Ce raccord 16 comporte une vis creuse 18 et une bague 20 entre le conduit 14 et la vis creuse 18. The invention will now be described by way of example with reference to the following appended drawing: FIG. 1 is a sectional view of a coupling incorporating the device of the invention. A turbocharger 10 of a motor has a bore 12 for supplying oil under pressure. The oil is fed to the turbocharger 10 through a conduit 14. The conduit 14 is connected to the inlet 12 of the turbocharger 10 using a banjo type connector 16. This connector 16 comprises a hollow screw 18 and a ring 20 between the conduit 14 and the hollow screw 18.
La bague 20 comporte des épaulements 20a sur sa face interne. Ces décrochements 20a forment ainsi deux décrochages 20b par rapport aux bords supérieurs et inférieurs de la bague 20. La bague 20 est montée autours de la vis 18, les épaulements 20a, sur la face interne de ladite bague 20 étant en contact avec la paroi extérieure 18a de la vis 18. La vis creuse 18 est vissée dans l'alésage 12. La paroi 18a de la vis creuse 18 comporte des perçages 22 situés au niveau de l'espace annulaire 20d de la bague 20, entre les épaulements 20a. Le raccord 16 de type banjo , comporte aussi deux joints en cuivre 24 et 26 dits de recouvrement. Ces joints circulaires comportent un rebord 24a sur leur périphérie intérieure. La forme de ces rebords 24a est complémentaire à celle des décrochages 20b de la bague 20. Le joint supérieur 26 est monté autours de la vis 18, le rebord du joint 26 étant en contact avec la paroi 18a de la vis 18. Ledit joint 26 est positionné entre la base 18b de la tête de la vis 18 et la partie supérieure de la bague 20. The ring 20 has shoulders 20a on its inner face. These recesses 20a thus form two stalls 20b with respect to the upper and lower edges of the ring 20. The ring 20 is mounted around the screw 18, the shoulders 20a, on the inner face of said ring 20 being in contact with the outer wall 18a of the screw 18. The hollow screw 18 is screwed into the bore 12. The wall 18a of the hollow screw 18 has bores 22 located at the annular space 20d of the ring 20, between the shoulders 20a. The connection 16 of banjo type, also includes two copper seals 24 and 26 said covers. These circular seals comprise a flange 24a on their inner periphery. The shape of these flanges 24a is complementary to that of the stalls 20b of the ring 20. The upper seal 26 is mounted around the screw 18, the flange of the seal 26 being in contact with the wall 18a of the screw 18. Said seal 26 is positioned between the base 18b of the head of the screw 18 and the upper part of the ring 20.
Le joint inférieur 24 est monté autours de la vis 18, la rebord 24a du joint 24 étant en contact avec la paroi 18a de la vis 18. Ledit joint 24 est positionné entre le turbocompresseur 10 et la partie inférieure de la bague 20. The lower seal 24 is mounted around the screw 18, the flange 24a of the seal 24 being in contact with the wall 18a of the screw 18. Said seal 24 is positioned between the turbocharger 10 and the lower part of the ring 20.
Les joints 24 et 26 s'étendent radialement vers l'extérieur du raccord, et comportent des rebords 24b sur leur périphérie extérieure. Ces rebords 24b sont sensiblement parallèles aux rebords intérieurs 24a, de telle sorte que le profil de ces joints ressemble à un U . La hauteur des rebords extérieurs 24b est moins haute sur une portion de ces joints, laissant ainsi un espace plus important pour le passage du conduit 14. Le fonctionnement de cette invention est le suivant : L'huile hydraulique sous pression, nécessaire au fonctionnement du turbocompresseur 10, arrive par un conduit 14, puis entre dans le raccord de type banjo 16 par une découpe 20c dans la bague 20 permettant le sertissage du conduit 14. L'huile emprunte les perçages 22 et passe alors de l'espace annulaire 20d de la bague 20 à la vis creuse 18, pour enfin rejoindre l'alésage d'arrivée d'huile 12 dans le turbocompresseur 10. Pour éviter les fuites d'huile, les joints 24 et 26 sont comprimés verticalement par la vis creuse 18 sur toute la surface de la base 18b de la tête de vis 18, sur toute la surface en contact avec le turbocompresseur 10 ainsi que sur les bords de la bague 20 dont la forme est complémentaire à la forme des joints 24 et 26. De plus, les joints 14 et 26, s'étendant radialement vers l'extérieur du raccord 16 et comportant des rebords 24b sur leur périphérie extérieur, protègent le turbocompresseur 10 des projections qui pourraient se produire au raccord du conduit d'alimentation 14 avec la bague 20. Un des avantages de cette invention, est de fournir un fonctionnement plus sûr, en évitant que d'éventuelles projections d'huile entrent en contact avec le turbocompresseur 10 et s'enflamment par la suite. The seals 24 and 26 extend radially outwardly of the connector, and have flanges 24b on their outer periphery. These flanges 24b are substantially parallel to the inner flanges 24a, so that the profile of these joints resembles a U. The height of the outer flanges 24b is lower on a portion of these joints, thus leaving a larger space for the passage of the conduit 14. The operation of this invention is as follows: The hydraulic oil under pressure, necessary for the operation of the turbocharger 10, arrives via a conduit 14, then enters the banjo type connector 16 by a cutout 20c in the ring 20 for crimping the conduit 14. The oil borrows the holes 22 and then passes the annular space 20d of the 20 to the hollow screw 18, to finally join the oil inlet bore 12 in the turbocharger 10. To prevent oil leakage, the seals 24 and 26 are compressed vertically by the hollow screw 18 over the entire surface of the base 18b of the screw head 18, over the entire surface in contact with the turbocharger 10 and on the edges of the ring 20 whose shape is complementary to the shape of the seals 24 and 26. In addition, the seals 14 and 26, extending radially outwardly of the coupling 16 and having flanges 24b on their outer periphery, protect the turbocharger 10 from projections that could occur at the connection of the supply duct 14 with the ring 20. One of the advantages of this invention is to provide a safer operation, avoiding that any projections of oil come into contact with the turbocharger 10 and ignite thereafter.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0553030A FR2891890A1 (en) | 2005-10-06 | 2005-10-06 | Oil leakage preventing device for turbocharger of motor vehicle engine, has socketed screw vertically compressing joints on surface in contact with turbocharger and on edges of ring, and joints extending radially towards exterior of coupler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0553030A FR2891890A1 (en) | 2005-10-06 | 2005-10-06 | Oil leakage preventing device for turbocharger of motor vehicle engine, has socketed screw vertically compressing joints on surface in contact with turbocharger and on edges of ring, and joints extending radially towards exterior of coupler |
Publications (1)
Publication Number | Publication Date |
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FR2891890A1 true FR2891890A1 (en) | 2007-04-13 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0553030A Pending FR2891890A1 (en) | 2005-10-06 | 2005-10-06 | Oil leakage preventing device for turbocharger of motor vehicle engine, has socketed screw vertically compressing joints on surface in contact with turbocharger and on edges of ring, and joints extending radially towards exterior of coupler |
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FR (1) | FR2891890A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2489917A2 (en) | 2011-02-17 | 2012-08-22 | Autotube AB | Fluid tube assembly |
FR3110663A1 (en) * | 2020-05-25 | 2021-11-26 | Psa Automobiles Sa | BANJO TYPE HYDRAULIC CONNECTION, PROVIDED WITH SEALING WASHERS JOINTLY WITH A SLEEVE ON WHICH THE WASHERS ARE IMMOBILIZED IN ROTATION |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2307328A (en) * | 1941-04-19 | 1943-01-05 | Otis C Martin | Swivel fitting |
FR1303139A (en) * | 1961-07-27 | 1962-09-07 | Anciens Etablissements Panhard | Improvements made to articulated pipelines for pressurized fluid, in particular those belonging to a hydraulic transmission circuit |
EP0266487A2 (en) * | 1986-11-03 | 1988-05-11 | MURRAY EUROPE S.p.A. | Fluid connector |
EP0319657A1 (en) * | 1987-12-10 | 1989-06-14 | MURRAY EUROPE S.p.A. | Connection for fluids |
FR2674491A1 (en) * | 1991-03-26 | 1992-10-02 | Fiat Auto Spa | Positioning device for pipeline connectors of hydraulic installations for motor vehicles, particularly for hydraulic power-assisted steering units |
JPH08247360A (en) * | 1995-03-13 | 1996-09-27 | Okawa Seira Kogyo Kk | Joint structure |
EP1369633A1 (en) * | 2002-06-07 | 2003-12-10 | FESTO AG & Co | Connecting device for fluid conduits |
-
2005
- 2005-10-06 FR FR0553030A patent/FR2891890A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2307328A (en) * | 1941-04-19 | 1943-01-05 | Otis C Martin | Swivel fitting |
FR1303139A (en) * | 1961-07-27 | 1962-09-07 | Anciens Etablissements Panhard | Improvements made to articulated pipelines for pressurized fluid, in particular those belonging to a hydraulic transmission circuit |
EP0266487A2 (en) * | 1986-11-03 | 1988-05-11 | MURRAY EUROPE S.p.A. | Fluid connector |
EP0319657A1 (en) * | 1987-12-10 | 1989-06-14 | MURRAY EUROPE S.p.A. | Connection for fluids |
FR2674491A1 (en) * | 1991-03-26 | 1992-10-02 | Fiat Auto Spa | Positioning device for pipeline connectors of hydraulic installations for motor vehicles, particularly for hydraulic power-assisted steering units |
JPH08247360A (en) * | 1995-03-13 | 1996-09-27 | Okawa Seira Kogyo Kk | Joint structure |
EP1369633A1 (en) * | 2002-06-07 | 2003-12-10 | FESTO AG & Co | Connecting device for fluid conduits |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 01 31 January 1997 (1997-01-31) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2489917A2 (en) | 2011-02-17 | 2012-08-22 | Autotube AB | Fluid tube assembly |
FR3110663A1 (en) * | 2020-05-25 | 2021-11-26 | Psa Automobiles Sa | BANJO TYPE HYDRAULIC CONNECTION, PROVIDED WITH SEALING WASHERS JOINTLY WITH A SLEEVE ON WHICH THE WASHERS ARE IMMOBILIZED IN ROTATION |
WO2021240078A1 (en) * | 2020-05-25 | 2021-12-02 | Psa Automobiles Sa | Hydraulic banjo union provided with sealing washers secured to a sleeve on which the washers are rotationally immobilised |
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