EP3814615B1 - Anordnung eines abgasschlauchs und einer schutzvorrichtung - Google Patents

Anordnung eines abgasschlauchs und einer schutzvorrichtung Download PDF

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Publication number
EP3814615B1
EP3814615B1 EP19732663.0A EP19732663A EP3814615B1 EP 3814615 B1 EP3814615 B1 EP 3814615B1 EP 19732663 A EP19732663 A EP 19732663A EP 3814615 B1 EP3814615 B1 EP 3814615B1
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EP
European Patent Office
Prior art keywords
hose
assembly
clamp
parts
flared end
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.)
Active
Application number
EP19732663.0A
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English (en)
French (fr)
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EP3814615A1 (de
Inventor
Romain Pinsard
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.)
Renault SAS
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Renault SAS
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Publication date
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
    • F01N13/1816—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements

Definitions

  • the invention relates to an assembly of an exhaust hose and a device for protecting said hose.
  • the flexible exhaust is welded to a flared flange, which is fixed by screwing on a flange of the exhaust manifold, engine side.
  • a temporary protective device surrounds the hose to protect it in particular from welding attacks.
  • connection between flanges is replaced by a "biconic" connection between the motor flange and one end of the hose, said connection being ensured by a circular clamping collar, as disclosed in the document WO03/011678A1 .
  • the collar To guarantee accessibility for assembly in the factory, and for disassembly after sales in the garage, the collar must be indexed in position on the hose. In other words, the hose and the collar are assembled at one place, then are transported thus assembled to another place, where the hose must be mounted on a vehicle, said other place being able for example to be a particular zone of a chain of assembly of said vehicle.
  • the current protector only protects the hose and not the clamp premounted on the hose.
  • a device for protecting an assembly according to the invention makes it possible to guarantee the protection of both the hose and the collar, as disclosed in the document DE20013124U1 .
  • the subject of the invention is an assembly of an exhaust hose provided with a flared end around which is mounted a clamp, and a device for protecting said hose.
  • the protection device comprises a box provided with two parts articulated around an axis of rotation, said two articulated parts being able to fold against each other by pivoting to envelop the entire flexible , flared end and collar.
  • This device of protection is particularly effective because it encloses the hose, the flared end and the collar.
  • a box is made of plastic.
  • the purpose of the hose clamp is to secure the hose to an engine flange.
  • the case once it has been closed over the hose, the flared end and the collar, has a mushroom shape, with a straight cylindrical foot extended by an enlarged rounded head.
  • a case has a generally rounded shape, without having any particular roughness and which promotes easy handling.
  • the two parts are complementary so as to form a hollow box once they have been folded against each other.
  • the hose is a hollow cylindrical part, the housing being a part having a hollow cylindrical body intended to envelop the hose, and an enlarged closed head intended to envelop the flared end and the collar.
  • the profile of the box adapts to the profile of the assembly formed by the hose, the flared end and the clamping collar.
  • the case is dimensioned as accurately as possible so as to completely envelop this assembly, without creating superfluous free spaces between said case and said assembly.
  • the axis of rotation is placed in abutment against the flared end, the two parts which are initially placed on either side of the hose, being folded over the latter to enclose the flared end provided with the collar clamp and said hose.
  • the flared end is hollow, the casing comprising a centering pin intended to penetrate into said end in order to preposition the protection device with respect to the hose.
  • the centering pin is first inserted into the flared end of the hose so as to correctly preposition the box on said hose. It then becomes easy to fold the two hinged parts against each other.
  • the centering pin is cylindrical.
  • said pin is hollow in order in particular to lighten the protective case.
  • the centering pin is elongated and has a collar whose plane is perpendicular to a longitudinal axis of said pin, said collar serving as a support element for the two articulated parts which have folded against each other. .
  • the collar plays the role of a spacer capable of holding the enlarged head of the protection device, in a rounded configuration.
  • the two articulated parts each have fastening means capable of cooperating together, to make it possible to secure said parts to one another when they envelop the hose, the flared end and the collar.
  • fastening means capable of cooperating together, to make it possible to secure said parts to one another when they envelop the hose, the flared end and the collar.
  • the fixing means are plastic clips. These are the simplest and quickest fixing means to implement, requiring neither special tools nor complicated manipulations.
  • the hollow enlarged head is sized with respect to the clamping collar so as to leave a clearance between said head and said collar.
  • the clamp is an added piece which is just placed on the flared end of the hose, the protective box must not interfere with said collar, under penalty of moving or damaging said collar at the slightest shock produced on said box.
  • the hose has an end collar, the two articulated parts bearing against the collar when they enclose the hose, the flared end and the collar, in order to prevent any sliding of the protection device along flexible.
  • the protective box has been mounted around the hose, the flared end and the clamp, nothing prevents it from sliding along said hose.
  • the purpose of this end flange is to prevent this sliding by constituting a stopper for the protective casing.
  • Another object of the invention is a protection device for producing an assembly according to the invention.
  • a protection device comprises a box provided with two parts articulated around an axis of rotation, said assembly comprising a centering pin on which said axis of rotation is fixed.
  • An assembly according to the invention has the advantage of comprising a hose directly ready for assembly, thanks to the presence of the clamp, and of being able to transport it in complete safety to the places where it is assembled thanks to a box enveloping the entire hose and clamp.
  • the protective box used in an assembly according to the invention has the advantage of being easy and quick to place around the hose, and of being able to be removed just as easily and quickly before mounting the hose on a vehicle.
  • Such a protective box also has the advantage of being sized to be able to protect a hose provided with its clamping collar without interfering with said clamping collar.
  • An assembly 1 comprises an assembly composed of a flexible hose 2 provided with a flared end 3 and a clamp 4, and a protection device 5 intended to protect this assembly in order to convey it in complete safety. to a mounting point of said hose 2 on a vehicle engine.
  • the hose 2 is a hollow cylindrical part of elongated shape, having a flared end 3 formed by a hollow flange inserted into said hose 2 and emerging therefrom.
  • the part 6 of the flange 3 which emerges from the flexible 2 consists of a wall of frustoconical shape, the cross section of said part 6 increasing regularly as one moves away from the flexible 2.
  • the flexible 2 is intended to be fixed on a flange 7 of an engine, which is a hollow cylindrical part having an annular bead 8 locally widening said flange 7.
  • the bead 8 is delimited by two edges 9, 10 in continuous with each other and inclined with respect to each other, so that the cross-section of the bead 8 is maximum at the level of its central circumference 11, and decreases progressively on either side of said circumference central 11.
  • the flexible 2 is fixed in the flange 7 of the engine by means of an insertion of said flange 7 in the flange 3 of the flexible 2 until one of the edges 9, 10 delimiting the bead 8 comes in contact with an internal surface of the frustoconical wall of the emerging part of the flange 3 of the hose 2.
  • the collar 4 is in the form of a ring delimited by two edges 12, 13 so that the cross section of said ring is maximum at its central circumference and decreases progressively on either side of said central circumference.
  • This ring 4 covers the bead 8 of the flange 7 of the motor, and the frustoconical wall 6 of the flange 3 of the hose 2, a tightening of the said collar 4 pressing the said frustoconical wall 6 against one of the edges 9, 10 delimiting the said bead 8.
  • the protection device 5 is composed of a box comprising two parts 15, 16 articulated around an axis of rotation 17 and a centering pin 18.
  • the two parts 15, 16 are identical and each comprise a semi-cylindrical hollow body 19 extended by a hollow half-head 20 of frustoconical shape.
  • the two parts 15, 16 are continuous and are connected to each other by means of the axis of rotation 17 which can for example be constituted by a strip of material of less thickness and capable of bending to bring them closer or further apart.
  • the two parts 15, 16 and the axis of rotation 18 are made of the same material.
  • the centering pin 18 comprises an elongated hollow cylindrical body 21 and a planar and annular flange 22, the plane of which is perpendicular to a longitudinal axis of said elongated body 21.
  • the hollow cylindrical body 21 has a first end at which is located the flange 22 and a second free end ending in a hollow cylindrical section 23 of reduced diameter compared to the diameter of the rest of said body 21, this difference in diameter inducing a shoulder 30.
  • the axis of rotation 17 located between the two articulated parts 15, 16 is secured to the centering pin 18 at an area center of the flange 22.
  • the centering pin 18, the two articulated parts 15, 16 and the axis of rotation 17 are made of the same material.
  • the two parts 15, 16 are capable of moving from an open position, as illustrated in Figures 3, 4A , And 4B to a closed position, as shown in figure 6 And 7 , for which said two parts 15, 16 are folded against each other by means of a pivoting in the direction materialized by the two arrows 24, 25 of the figure 6 .
  • the two parts 15, 16 are complementary to form a hollow piece having the shape of a mushroom, equipped with a cylindrical body of constant diameter, extended by an enlarged cylindrical head 27 having a variable diameter and greater than that of said body 26.
  • the hose 2 has a rear flange 40 against which the free ends of the two articulated parts 15, 16 come into abutment, in order to prevent the protective device from sliding along the hose 2.
  • the enlarged cylindrical head 27 is dimensioned so that there is a clearance between said part 27 and the clamp 4 mounted on the widened end 3 of the hose 2.
  • the protective device 5 is temporarily mounted on the hose 2, the time to route it to the place of its mounting on a vehicle. Once the “hose/protection device” assembly has been routed to the right place, the protection device is then removed just as easily and quickly as it was fitted around said hose 2.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Supports For Pipes And Cables (AREA)

Claims (10)

  1. Anordnung eines Abgasschlauchs (2), die mit einem aufgeweiteten Ende (3) versehen ist, um das eine Schlauchschelle (4) montiert ist, und mit einer Schutzvorrichtung (5) für den Schlauch (2), dadurch gekennzeichnet, dass die Schutzvorrichtung (5) ein Gehäuse umfasst, das mit zwei Teilen (15, 16) versehen ist, die um eine Drehachse (17) gelenkig gelagert sind, und dass die beiden gelenkig gelagerten Teile (15, 16) dazu in der Lage sind, durch Schwenken gegeneinander geklappt zu werden, um den gesamten Schlauch (2), das aufgeweitete Ende (3) und die Schelle (4) zu umschließen.
  2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass der Schlauch (2) ein hohlzylindrisches Teil ist und dass das Gehäuse ein Teil ist, das einen hohlzylindrischen Körper (19) zum Umschließen des Schlauchs (2) und einen vergrößerten geschlossenen Kopf (20), zum Umschließen des aufgeweiteten Endes (3) und der Schelle (4) aufweist.
  3. Anordnung nach Anspruch 2, dadurch gekennzeichnet, dass die Drehachse (17) am aufgeweiteten Ende (3) anliegend angeordnet ist und dass die beiden ursprünglich auf beiden Seiten des Schlauchs (2) angeordneten Teile (15, 16) auf diesen umgeklappt werden, um das mit der Schlauchschelle (4) versehene aufgeweitete Ende (3) und den Schlauch (2) zu umspannen.
  4. Anordnung nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass das aufgeweitete Ende (3) hohl ist und dass das Gehäuse einen Zentrierstift (18) umfasst, der dazu bestimmt ist, in das Ende (3) einzudringen, um die Schutzvorrichtung (5) in Bezug auf den Schlauch (2) vorzupositionieren.
  5. Anordnung nach Anspruch 4, dadurch gekennzeichnet, dass der Zentrierstift (18) länglich ist und einen Flansch (22) besitzt, dessen Ebene senkrecht zu einer Längsachse des Stifts (18) ist, und dass der Flansch (22) für die beiden gelenkig gelagerten Teile (15, 16), die gegeneinander geklappt sind, als Auflageelement dient.
  6. Anordnung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass die beiden gelenkig gelagerten Teile (15, 16) jeweils über Befestigungsmittel (28, 29) verfügen, die dazu geeignet sind, die Teile (15, 16) fest miteinander zu verbinden, wenn sie den Schlauch (2), das aufgeweitete Ende (3) und die Schelle (4) umschließen.
  7. Anordnung nach Anspruch 6, dadurch gekennzeichnet, dass es sich bei den Befestigungsmitteln um Clips (28, 29) aus Kunststoff handelt.
  8. Anordnung nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass der vergrößerte hohle Kopf (20) in Bezug auf die Schlauchschelle (4) so bemessen ist, dass ein Spiel zwischen dem Kopf (20) und der Schelle (4) bestehen bleibt.
  9. Anordnung nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, dass der Schlauch (2) einen Endflansch (40) aufweist und dass die beiden gelenkig gelagerten Teile (15, 16) am Flansch (40) anliegen, wenn sie den Schlauch (2), das aufgeweitete Ende (3) und die Schelle (4) umschließen, um ein Verschieben der Schutzvorrichtung (5) entlang des Schlauchs (2) zu verhindern.
  10. Schutzvorrichtung zur Herstellung einer Anordnung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass sie ein Gehäuse umfasst, das mit zwei gelenkig gelagerten Teilen (15, 16) um eine Drehachse (17) versehen ist und dass sie einen Zentrierstift (18) umfasst, mit dem die Drehachse (17) fest verbunden ist.
EP19732663.0A 2018-06-28 2019-06-24 Anordnung eines abgasschlauchs und einer schutzvorrichtung Active EP3814615B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1855841A FR3083289A1 (fr) 2018-06-28 2018-06-28 Assemblage d'un flexible d'echappement et d'un dispositif de protection
PCT/EP2019/066715 WO2020002265A1 (fr) 2018-06-28 2019-06-24 Assemblage d'un flexible d'echappement et d'un dispositif de protection

Publications (2)

Publication Number Publication Date
EP3814615A1 EP3814615A1 (de) 2021-05-05
EP3814615B1 true EP3814615B1 (de) 2023-02-22

Family

ID=63407475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19732663.0A Active EP3814615B1 (de) 2018-06-28 2019-06-24 Anordnung eines abgasschlauchs und einer schutzvorrichtung

Country Status (4)

Country Link
EP (1) EP3814615B1 (de)
CN (1) CN112424456A (de)
FR (1) FR3083289A1 (de)
WO (1) WO2020002265A1 (de)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2504544A1 (de) * 1975-02-04 1976-08-05 Pforzheim Metallschlauch Flexibles leitungselement fuer abgasleitungen von kraftfahrzeugen
DE19606738A1 (de) * 1996-02-23 1997-09-04 Witzenmann Metallschlauchfab Gelenkiges Verbindungselement für Rohrteile
EP0810354B1 (de) * 1996-05-29 2003-01-08 Calsonic Kansei Corporation Flexible Rohreinheit zur Verwendung in Auspuffsystem von Fahrzeugbrennkraftmaschine
DE20013124U1 (de) * 2000-07-29 2000-12-07 Gillet Heinrich Gmbh Vorrichtung zum Schutz von Flexelementen
DE10136794B4 (de) * 2001-07-27 2004-04-08 Audi Ag Vorrichtung zur Transportsicherung
FR2937100B1 (fr) * 2008-10-10 2014-02-28 Renault Sas Element protecteur pour organe a proteger, notamment un flexible d'echappement
FR2937015A1 (fr) * 2008-10-15 2010-04-16 Financ De Beaumont Fdb Dispositif de protection de flexible associe a un pot d'echappement.
US20120318371A1 (en) * 2011-06-17 2012-12-20 Caterpillar Inc. Bellows assembly and engaging structure

Also Published As

Publication number Publication date
EP3814615A1 (de) 2021-05-05
WO2020002265A1 (fr) 2020-01-02
FR3083289A1 (fr) 2020-01-03
CN112424456A (zh) 2021-02-26

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