WO2006058693A1 - Exhaust pipe connection - Google Patents

Exhaust pipe connection Download PDF

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Publication number
WO2006058693A1
WO2006058693A1 PCT/EP2005/012726 EP2005012726W WO2006058693A1 WO 2006058693 A1 WO2006058693 A1 WO 2006058693A1 EP 2005012726 W EP2005012726 W EP 2005012726W WO 2006058693 A1 WO2006058693 A1 WO 2006058693A1
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WO
WIPO (PCT)
Prior art keywords
sealing means
exhaust pipe
pipe connection
connection according
receiving space
Prior art date
Application number
PCT/EP2005/012726
Other languages
German (de)
French (fr)
Inventor
Matthias Keller
Winfried Willeke
Original Assignee
Arvinmeritor Emissions Technologies Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arvinmeritor Emissions Technologies Gmbh filed Critical Arvinmeritor Emissions Technologies Gmbh
Publication of WO2006058693A1 publication Critical patent/WO2006058693A1/en

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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
    • F01N13/1827—Sealings specially adapted for exhaust systems
    • 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
    • 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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • F16L21/04—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings in which sealing rings are compressed by axially-movable members
    • 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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
    • F16L23/0286—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder the shoulder not being formed from the pipe
    • 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
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings

Definitions

  • the invention relates to an exhaust pipe connection with a pipe having a pipe end, and a connecting part, which has an opening into which the pipe end is inserted.
  • a pipe end of the manifold has a welded or integral flange which is secured to a
  • Connecting part is screwed.
  • the object of the invention is now to minimize occurring voltage spikes by the connection of the parts so that a permanent exhaust pipe connection is created.
  • Sealant between the tube, the connecting part and the flange is located and wherein the flange is movably disposed to the tube, so that, at
  • the receiving space is preferably a circumferential groove, because this is easy to manufacture and favors a reliable seal in the circumferential direction.
  • the sealing means may be formed as a sealing ring, which allows a particularly inexpensive and effective seal in the circumferential direction.
  • the sealing means is preferably an elastic seal, in particular of metal or plastic. The elasticity of a good relationship between sealing and pressing action is achieved.
  • the sealing means has a wedge-shaped cross-section, with the advantage that when driving the sealant in the wedge direction, a growing sealing and pressing action arises.
  • the receiving space is also wedge-shaped and correspond to the wedge angle of the sealant substantially to the groove. This results in large friction and thus holding surfaces, through which a particularly good holding effect is achieved.
  • the uncompressed fills in the
  • Insertion chamber introduced sealant the receiving space axially not completely. This ensures that initially a radial compression and compression occurs before a large resistance builds up in the axial direction.
  • the compressed sealing means completely fills the receiving space. This prevents the material the sealant, due to creep, the stress escapes and evades into remaining cavities, whereby the holding effect would be weakened.
  • the flange member may be movable along the tube and thus is capable of longitudinally positioning and compressing the sealant.
  • the tube serves as a guide for the flange, but otherwise is decoupled from the pipe.
  • the flange part can be fastened to the connecting part, preferably by a separate fastening means, which presses the flange part against an end face of the connecting part.
  • a separate fastening means which presses the flange part against an end face of the connecting part.
  • FIG. 1 shows a section through an inventive exhaust pipe connection in non-mounted position
  • Figure 2 is a section through the exhaust pipe connection of Figure 1 in the mounted position.
  • FIG. 1 shows an exhaust pipe connection, with a pipe 10, the one
  • Pipe end 12 has, and a connection part 14 which has an opening for providing an exhaust passage 15, in which the pipe end 12 is inserted. It can be clearly seen that when an inserted tube, an axial gap (gap width d) is present between the pipe end 12 and the connection part 14. Furthermore, a flange part 16 and a sealing means 18 are shown which surround the tube 10, wherein the sealing means 18 is located between the tube 10, the connecting part 14 and the flange part 16.
  • the sealant 18 is not yet compressed, but it is already so far introduced into a receiving space 20 that it touches the boundaries of the receiving space 20 in the radial direction, but not completely fills it in the axial direction.
  • the receiving space 20 is defined in the present embodiment by a circumferential groove and limited by a conically flared end of the exhaust passage 15, the tube 10 and in the mounted state (FIG. 2), the flange 16.
  • the sealant 18 is formed as a sealing ring.
  • the sealing means 18, just like the receiving space 20 has a wedge-shaped cross section, wherein the wedge angle of the sealing means 18 substantially corresponds to a wedge angle of the Aufhahmeraums 20.
  • connection part 14 In contrast to Figure 1, the sealant is compressed in Figure 2, and the receiving space is completely filled by the sealant 18. It can also be clearly seen in FIG. 2 that the flange part 16 is fastened to the connection part 14, specifically by a separate fastening means 22 which presses the flange part 16 against an end face of the connection part 14.
  • the flange member 16 is movably disposed along the tube 10 so as to urge the sealant 18 into a receiving space 20 upon movement toward the sealant 18, positioning it and thus compressing it in that the sealing means 18 presses radially against the pipe 10 and thereby holds the pipe end 12 at the connection part 14. More specifically, in the embodiment shown, the flange member 16 urges the sealant 18 against the tube 10 and the tie 14 which define the receiving space 20.
  • the fastening means 22 consists in this case of screws, although an attachment by riveting is also conceivable.
  • the screws are going through the Flange part 16 is screwed into the connecting part 14, wherein the flange member 16 slides axially along the circumference of the tube and compresses the sealing means 18 in the receiving space 20.
  • the sealing means 18 is highly compressed and fills the entire receiving space 20 from. Due to the compression of the sealing means 18 such a large transverse pressure in the radial direction is created that only the frictional engagement between the tube 10 and the sealant 18 is sufficient to hold the tube end 12 axially on the connection part 14.
  • the sealing means 18 may be a more or less elastic metal or sintered part, but is preferably a resilient seal made of a plastic. Due to the elasticity, a certain movement of the tube 10 in the axial and radial direction relative to the connection part 14 is particularly well possible. As a result of this relative movement, the gap width d can increase or decrease. Dimensional tolerances and expansions as a result of temperature changes can therefore take place to a certain extent and, as a result, voltage peaks are prevented or minimized.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Gasket Seals (AREA)
  • Exhaust Silencers (AREA)

Abstract

Disclosed is an exhaust pipe connection comprising a pipe (10) with a pipe end (12) and a connecting part (14) that is provided with an opening into which the pipe end (12) is inserted. The pipe (10) is surrounded by a flange part (16) and a preferably elastic sealing means (18) that is placed between the pipe (10), the connecting part (14), and the flange part (16). The flange part (16) is disposed so as to be movable relative to the pipe (10) such that the flange part (16) presses the sealing means (18) into a receiving space (20), places the same therein, and compresses the same in such a way that the sealing means (18) is pressed against the pipe (10) and thereby retains the pipe end (12) on the connecting part (14) when the flange part (16) is moved in the direction of the sealing means (18).

Description

Abgasrohr anbindung Exhaust pipe connection
Die Erfindung betrifft eine Abgasrohranbindung mit einem Rohr, das ein Rohrende aufweist, und einem Anbindungsteil, das eine Öffnung aufweist, in die das Rohrende eingeführt ist.The invention relates to an exhaust pipe connection with a pipe having a pipe end, and a connecting part, which has an opening into which the pipe end is inserted.
Mit Rohranbindungen dieser Art wird bei Abgassystemen beispielsweise einWith pipe connections of this type is in exhaust systems, for example, a
Krümmer mit einem Turbolader, einem Abgasrohr etc. verbunden. Bisher werden die Teile im allgemeinen starr gekoppelt, indem z.B. ein Rohrende des Krümmers einen angeschweißten oder einstückigen Flansch aufweist, der an einemManifold connected to a turbocharger, an exhaust pipe, etc. So far, the parts are generally rigidly coupled, e.g. a pipe end of the manifold has a welded or integral flange which is secured to a
Anbindungsteil verschraubt wird.Connecting part is screwed.
Maßtoleranzen der zu verbindenden Teile können dabei zu Spannungen in der Verbindung und in den zu verbindenden Teilen führen. Zusätzlich entstehen im Verbindungsbereich Spannungen, die aus Verformungen infolge von Temperatur- unterschieden oder unterschiedlichen Temperaturausdehnungen resultieren. Diese Effekte gehen zu Lasten der Dauerfestigkeit der Abgasrohranbindung. Daher treten Schäden an Abgassystemen vorzugsweise in diesen Verbindungsbereichen auf.Dimensional tolerances of the parts to be joined can lead to stresses in the connection and in the parts to be joined. In addition, stresses arise in the connection region resulting from deformations as a result of temperature differences or different temperature expansions. These effects are at the expense of fatigue strength of the exhaust pipe connection. Therefore, damage to exhaust systems preferably occurs in these connection areas.
Aufgabe der Erfindung ist es nun, auftretende Spannungsspitzen durch die Verbindung der Teile so zu minimieren, daß eine dauerhafte Abgasrohranbindung geschaffen wird.The object of the invention is now to minimize occurring voltage spikes by the connection of the parts so that a permanent exhaust pipe connection is created.
Zu diesem Zweck ist bei einer Abgasrohranbindung der eingangs genanntenFor this purpose, in an exhaust pipe connection of the aforementioned
Art das Rohr durch ein Flanschteil und ein Dichtungsmittel umgeben, wobei dasType the tube surrounded by a flange and a sealant, the
Dichtungsmittel zwischen dem Rohr, dem Anbindungsteil und dem Flanschteil liegt und wobei das Flanschteil beweglich zum Rohr angeordnet ist, so daß es, beiSealant between the tube, the connecting part and the flange is located and wherein the flange is movably disposed to the tube, so that, at
Bewegung in Richtung zum Dichtungsmittel, das Dichtungsmittel in einen Aufiiahmeraum drückt, es darin positioniert und so komprimiert, daß das Dichtungsmittel gegen das Rohr drückt und dadurch das Rohrende am Anbindungsteil hält. Da das Rohrende nur über das Dichtungsmittel am Anbindungsteil gehalten ist, wird keine starre, sondern eine nachgiebigere Kopplung geschaffen. Somit können Spannungen weitgehend vermieden oder minimiert werden, wodurch die Materialbeanspruchung geringer ist.Movement towards the sealant, the sealant into one Pressing Aufiiahmeraum, positioned therein and compressed so that the sealant presses against the tube and thereby holds the pipe end to the connection part. Since the pipe end is held only on the sealing means on the connection part, no rigid, but a more flexible coupling is created. Thus, stresses can be largely avoided or minimized, whereby the material stress is lower.
Der Aufhahmeraum ist vorzugsweise eine umlaufende Nut, weil diese einfach herstellbar ist und eine zuverlässige Abdichtung in Umfangsrichtung begünstigt.The receiving space is preferably a circumferential groove, because this is easy to manufacture and favors a reliable seal in the circumferential direction.
Das Dichtungsmittel kann als Dichtring ausgebildet sein, was eine besonders preiswerte und effektive Dichtung in Umfangsrichtung ermöglicht.The sealing means may be formed as a sealing ring, which allows a particularly inexpensive and effective seal in the circumferential direction.
Darüber hinaus ist das Dichtungsmittel bevorzugt eine elastische Dichtung, insbesondere aus Metall oder Kunststoff. Durch die Elastizität wird ein gutes Verhältnis zwischen Dicht- und Anpreßwirkung erreicht.In addition, the sealing means is preferably an elastic seal, in particular of metal or plastic. The elasticity of a good relationship between sealing and pressing action is achieved.
In einer Ausführungsform hat das Dichtungsmittel einen keilförmigen Querschnitt, mit dem Vorteil, daß bei Vortrieb des Dichtungsmittels in Keilrichtung eine wachsende Dicht- und Anpreßwirkung entsteht.In one embodiment, the sealing means has a wedge-shaped cross-section, with the advantage that when driving the sealant in the wedge direction, a growing sealing and pressing action arises.
Li dieser Ausführungsform ist es besonders vorteilhaft, wenn der Aufnahmeraum ebenfalls keilförmig ist und der Keilwinkel des Dichtungsmittels im wesentlichen dem der Nut entsprechen. Dadurch entstehen nämlich große Reib- und damit Halteflächen, durch die eine besonders gute Haltewirkung erreicht wird.Li of this embodiment, it is particularly advantageous if the receiving space is also wedge-shaped and correspond to the wedge angle of the sealant substantially to the groove. This results in large friction and thus holding surfaces, through which a particularly good holding effect is achieved.
In einer weiteren Ausführungsform füllt das nicht komprimierte, in denIn another embodiment, the uncompressed fills in the
Aufhahmeraum eingeführte Dichtungsmittel den Aufnahmeraum axial nicht vollständig aus. Damit ist gewährleistet, daß zunächst eine radiale Pressung und Kompression entsteht, bevor sich ein großer Widerstand in axialer Richtung aufbaut.Insertion chamber introduced sealant the receiving space axially not completely. This ensures that initially a radial compression and compression occurs before a large resistance builds up in the axial direction.
In einer weiteren Ausführungsform füllt das komprimierte Dichtungsmittel den Aufhahmeraum vollständig aus. Damit wird verhindert, daß sich das Material des Dichtungsmittels, infolge Kriechens, der Belastung entzieht und in verbliebene Hohlräume ausweicht, wodurch die Haltewirkung geschwächt würde.In another embodiment, the compressed sealing means completely fills the receiving space. This prevents the material the sealant, due to creep, the stress escapes and evades into remaining cavities, whereby the holding effect would be weakened.
Das Flanschteil kann längs des Rohres bewegbar sein und ist somit fähig, das Dichtungsmittel in Längsrichtung zu positionieren und zu komprimieren. Das Rohr dient als Führung für das Flanschteil, das ansonsten aber vom Rohr entkoppelt ist.The flange member may be movable along the tube and thus is capable of longitudinally positioning and compressing the sealant. The tube serves as a guide for the flange, but otherwise is decoupled from the pipe.
Das Flanschteil kann am Anbindungsteil befestigt sein, vorzugsweise durch ein separates Befestigungsmittel, welches das Flanschteil gegen eine Stirnfläche des Anbindungsteils preßt. Neben der eigentlichen Aufgabe, Anbindungsteil und Flanschteil zu verbinden, stellt dies eine einfache Möglichkeit dar, das Dichtungsmittel dauerhaft zu komprimieren und damit eine anhaltend hohe Haltewirkung zu erzielen.The flange part can be fastened to the connecting part, preferably by a separate fastening means, which presses the flange part against an end face of the connecting part. In addition to the actual task to connect connecting part and flange, this is an easy way to permanently compress the sealant and thus to achieve a sustained high retention effect.
In einer besonders bevorzugten Ausführungsform ist bei eingeführtem Rohr ein axialer Spalt zwischen dem Rohrende und dem Anbindungsteil vorhanden. Durch diesen Spalt können auftretende Maßtoleranzen und Temperaturdehnungen aufgenommen werden, ohne daß es zu Spannungen wegen behinderterIn a particularly preferred embodiment, when the pipe is inserted, there is an axial gap between the pipe end and the connecting part. Through this gap occurring dimensional tolerances and thermal expansions can be absorbed, without causing tensions due to disabled
Verformung kommt.Deformation comes.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsformen und aus der beigefügten Zeichnung, auf die Bezug genommen wird. In der Zeichnung zeigt:Further features and advantages of the invention will become apparent from the following description of preferred embodiments and from the accompanying drawings, to which reference is made. In the drawing shows:
- Figur 1 einen Schnitt durch eine erfindungsgemäße Abgasrohranbindung in nicht-montierter Stellung; und- Figure 1 shows a section through an inventive exhaust pipe connection in non-mounted position; and
- Figur 2 einen Schnitt durch die Abgasrohranbindung aus Figur 1 in montierter Stellung.- Figure 2 is a section through the exhaust pipe connection of Figure 1 in the mounted position.
Die Figur 1 stellt eine Abgasrohranbindung dar, mit einem Rohr 10, das einFIG. 1 shows an exhaust pipe connection, with a pipe 10, the one
Rohrende 12 aufweist, und einem Anbindungsteil 14, das eine Öffnung zur Schaffung eines Abgaskanals 15 aufweist, in die das Rohrende 12 eingeführt ist. Es ist deutlich erkennbar, daß bei eingeführtem Rohr ein axialer Spalt (Spaltbreite d) zwischen dem Rohrende 12 und dem Anbindungsteil 14 vorhanden ist. Femer sind ein Flanschteil 16 und ein Dichtungsmittel 18 gezeigt, die das Rohr 10 umgeben, wobei das Dichtungsmittel 18 zwischen dem Rohr 10, dem Anbindungsteil 14 und dem Flanschteil 16 liegt.Pipe end 12 has, and a connection part 14 which has an opening for providing an exhaust passage 15, in which the pipe end 12 is inserted. It can be clearly seen that when an inserted tube, an axial gap (gap width d) is present between the pipe end 12 and the connection part 14. Furthermore, a flange part 16 and a sealing means 18 are shown which surround the tube 10, wherein the sealing means 18 is located between the tube 10, the connecting part 14 and the flange part 16.
In Figur 1 ist das Dichtungsmittel 18 noch nicht komprimiert, es ist aber bereits soweit in einen Aufhahmeraum 20 eingeführt, daß es in radialer Richtung die Begrenzungen des Aufhahmeraumes 20 berührt, ihn in axialer Richtung aber nicht vollständig ausfüllt. Der Aufhahmeraum 20 ist in der vorliegenden Ausfuhrungsform durch eine umlaufende Nut definiert und durch ein konisch aufgeweitetes Ende des Abgaskanals 15, das Rohr 10 sowie im montierten Zustand (Fig. 2) das Flanschteil 16 begrenzt. Das Dichtungsmittel 18 ist als Dichtring ausgebildet. Das Dichtungsmittel 18 hat genau wie der Aufnahmeraum 20 einen keilförmigen Querschnitt, wobei der Keilwinkel des Dichtungsmittels 18 im wesentlichen einem Keilwinkel des Aufhahmeraums 20 entspricht.In Figure 1, the sealant 18 is not yet compressed, but it is already so far introduced into a receiving space 20 that it touches the boundaries of the receiving space 20 in the radial direction, but not completely fills it in the axial direction. The receiving space 20 is defined in the present embodiment by a circumferential groove and limited by a conically flared end of the exhaust passage 15, the tube 10 and in the mounted state (FIG. 2), the flange 16. The sealant 18 is formed as a sealing ring. The sealing means 18, just like the receiving space 20 has a wedge-shaped cross section, wherein the wedge angle of the sealing means 18 substantially corresponds to a wedge angle of the Aufhahmeraums 20.
Im Gegensatz zu Figur 1 ist das Dichtungsmittel in Figur 2 komprimiert, und der Aufhahmeraum ist vollständig vom Dichtungsmittel 18 ausgefüllt. In Figur 2 ist auch deutlich zu sehen, daß das Flanschteil 16 am Anbindungsteil 14 befestigt ist, und zwar durch ein separates Befestigungsmittel 22, welches das Flanschteil 16 gegen eine Stirnfläche des Anbindungsteils 14 presst.In contrast to Figure 1, the sealant is compressed in Figure 2, and the receiving space is completely filled by the sealant 18. It can also be clearly seen in FIG. 2 that the flange part 16 is fastened to the connection part 14, specifically by a separate fastening means 22 which presses the flange part 16 against an end face of the connection part 14.
Bei einem Vergleich der Figuren 1 und 2 wird klar, daß das Flanschteil 16 längs des Rohres 10 beweglich angeordnet ist, so daß es, bei Bewegung in Richtung zum Dichtungsmittel 18, das Dichtungsmittel 18 in einen Aufhahmeraum 20 drückt, es darin positioniert und so komprimiert, daß das Dichtungsmittel 18 radial gegen das Rohr 10 drückt und dadurch das Rohrende 12 am Anbindungsteil 14 hält. Genauer gesagt drückt das Flanschteil 16 das Dichtungsmittel 18 in der gezeigten Ausführungsform gegen das Rohr 10 und das Anbindungsteil 14, die den Aufnahmeraums 20 begrenzen.Comparing Figures 1 and 2, it will be understood that the flange member 16 is movably disposed along the tube 10 so as to urge the sealant 18 into a receiving space 20 upon movement toward the sealant 18, positioning it and thus compressing it in that the sealing means 18 presses radially against the pipe 10 and thereby holds the pipe end 12 at the connection part 14. More specifically, in the embodiment shown, the flange member 16 urges the sealant 18 against the tube 10 and the tie 14 which define the receiving space 20.
Das Befestigungsmittel 22 besteht in diesem Fall aus Schrauben, obgleich eine Befestigung durch Nieten ebenso denkbar ist. Die Schrauben werden durch das Flanschteil 16 in das Anbindungsteil 14 eingedreht, wobei das Flanschteil 16 axial entlang des Rohrumfangs gleitet und das Dichtungsmittel 18 in den Aufhahmeraum 20 komprimiert. Wenn die Schrauben soweit angezogen sind, daß das Flanschteil 16 die Stirnfläche des Anbindungsteils 14 berührt, ist das Dichtungsmittel 18 stark komprimiert und füllt den gesamten Aufhahmeraum 20 aus. Durch die Komprimierung des Dichtungsmittels 18 ist eine so große Querpressung in radialer Richtung entstanden, daß nur der Reibschluß zwischen dem Rohr 10 und dem Dichtungsmittel 18 ausreicht, um das Rohrende 12 axial am Anbindungsteil 14 zu halten. Das Dichtungsmittel 18 kann ein mehr oder weniger elastisches Metall- oder Sinterteil sein, ist aber vorzugsweise eine elastische Dichtung aus einem Kunststoff. Durch die Elastizität ist eine gewisse Bewegung des Rohres 10 in axialer und radialer Richtung relativ zum Anbindungsteil 14 besonders gut möglich. Infolge dieser Relativbewegung kann sich die Spaltbreite d vergrößern oder verkleinern. Maßtoleranzen und Dehnungen infolge von Temperaturänderungen können also in einem gewissen Maße stattfinden und infolgedessen werden Spannungsspitzen verhindert oder minimiert. The fastening means 22 consists in this case of screws, although an attachment by riveting is also conceivable. The screws are going through the Flange part 16 is screwed into the connecting part 14, wherein the flange member 16 slides axially along the circumference of the tube and compresses the sealing means 18 in the receiving space 20. When the screws are tightened so far that the flange 16 touches the end face of the connecting part 14, the sealing means 18 is highly compressed and fills the entire receiving space 20 from. Due to the compression of the sealing means 18 such a large transverse pressure in the radial direction is created that only the frictional engagement between the tube 10 and the sealant 18 is sufficient to hold the tube end 12 axially on the connection part 14. The sealing means 18 may be a more or less elastic metal or sintered part, but is preferably a resilient seal made of a plastic. Due to the elasticity, a certain movement of the tube 10 in the axial and radial direction relative to the connection part 14 is particularly well possible. As a result of this relative movement, the gap width d can increase or decrease. Dimensional tolerances and expansions as a result of temperature changes can therefore take place to a certain extent and, as a result, voltage peaks are prevented or minimized.

Claims

Patentansprüche claims
1. Abgasrohranbindung mit einem Rohr (10), das ein Rohrende (12) aufweist, und einem Anbindungsteil (14), das eine Öffnung aufweist, in die das Rohrende (12) eingeführt ist, gekennzeichnet durch ein Flanschteil (16) und ein Dichtungsmittel (18), die das Rohr (10) umgeben, wobei das Dichtungsmittel (18) zwischen dem Rohr (10), dem Anbindungsteil (14) und dem Flanschteil (16) liegt und wobei das Flanschteil (16) beweglich zum Rohr (10) angeordnet ist, so daß es, bei Bewegung in Richtung zum Dichtungsmittel (18), das Dichtungsmittel (18) in einen Aufnahme- räum (20) drückt, es darin positioniert und so komprimiert, daß das Dichtungsmittel (18) gegen das Rohr (10) drückt und dadurch das Rohrende (12) am Anbindungsteil (14) hält.An exhaust pipe connection with a pipe (10) having a pipe end (12) and a connecting part (14) having an opening into which the pipe end (12) is inserted, characterized by a flange part (16) and a sealing means (18) surrounding the tube (10), the sealing means (18) being located between the tube (10), the connecting part (14) and the flange part (16) and the flange part (16) being movable relative to the tube (10). is arranged so that, when moving in the direction of the sealing means (18), the sealing means (18) presses in a receiving space (20), it is positioned therein and compressed so that the sealing means (18) against the tube (10 ) and thereby holds the pipe end (12) on the connection part (14).
2. Abgasrohranbindung nach Anspruch 1, dadurch gekennzeichnet, daß der Aufnahmeraum (20) eine umlaufende Nut ist.2. exhaust pipe connection according to claim 1, characterized in that the receiving space (20) is a circumferential groove.
3. Abgasrohranbindung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Dichtungsmittel (18) als Dichtring ausgebildet ist.3. exhaust pipe connection according to claim 1 or 2, characterized in that the sealing means (18) is designed as a sealing ring.
4. Abgasrohranbindung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Dichtungsmittel (18) eine elastische Dichtung ist.4. exhaust pipe connection according to one of the preceding claims, characterized in that the sealing means (18) is an elastic seal.
5. Abgasrohranbindung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Dichtungsmittel (18) einen keilförmigen Querschnitt hat.5. exhaust pipe connection according to one of the preceding claims, characterized in that the sealing means (18) has a wedge-shaped cross-section.
6. Abgasrohranbindung nach Anspruch 5, dadurch gekennzeichnet, daß der Aufnahmeraum (20) ebenfalls keilförmig ist, und der Keilwinkel des Dichtungsmittels (18) im wesentlichen dem des Aufnahmeraumes (20) entspricht.6. exhaust pipe connection according to claim 5, characterized in that the receiving space (20) is also wedge-shaped, and the wedge angle of the sealing means (18) substantially corresponds to that of the receiving space (20).
7. Abgasrohranbindung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das nicht komprimierte in den Aufnahmeraum (20) eingeführte Dichtungsmittel (18) axial den Aufnahmeraum (20) nicht vollständig ausfüllt. 7. exhaust pipe connection according to one of the preceding claims, characterized in that the non-compressed in the receiving space (20) inserted sealing means (18) axially not completely fills the receiving space (20).
8. Abgasrohranbindung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das komprimierte Dichtungsmittel (18) den Aufhahmeraum (20) vollständig ausfüllt.8. exhaust pipe connection according to one of the preceding claims, characterized in that the compressed sealing means (18) completely fills the receiving space (20).
9. Abgasrohranbindung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Flanschteil (16) längs des Rohres (10) bewegbar ist.9. exhaust pipe connection according to one of the preceding claims, characterized in that the flange part (16) along the tube (10) is movable.
10. Abgasrohranbindung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Flanschteil (16) am Anbindungsteil (14) befestigt ist.10. exhaust pipe connection according to one of the preceding claims, characterized in that the flange part (16) is attached to the connecting part (14).
11. Abgasrohranbindung nach Anspruch 10, gekennzeichnet durch ein separates Befestigungsmittel (22), welches das Flanschteil (16) gegen eine Stirnfläche des Anbindungsteils (14) preßt.11. exhaust pipe connection according to claim 10, characterized by a separate fastening means (22) which presses the flange part (16) against an end face of the connecting part (14).
12. Abgasrohranbindung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß bei eingeführtem Rohr (10) ein axialer Spalt zwischen dem Rohrende (12) und dem Anbindungsteil (14) vorhanden ist. 12. exhaust pipe connection according to one of the preceding claims, characterized in that when inserted tube (10) has an axial gap between the pipe end (12) and the connecting part (14) is present.
PCT/EP2005/012726 2004-12-03 2005-11-29 Exhaust pipe connection WO2006058693A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004058428.1 2004-12-03
DE200410058428 DE102004058428A1 (en) 2004-12-03 2004-12-03 Exhaust pipe connection

Publications (1)

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WO2006058693A1 true WO2006058693A1 (en) 2006-06-08

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WO (1) WO2006058693A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104912689A (en) * 2015-06-27 2015-09-16 奇瑞商用车（安徽）有限公司 Sealing structure of vehicle exhaust system and sealing method

Citations (8)

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Publication number Priority date Publication date Assignee Title
GB559013A (en) * 1942-07-25 1944-02-01 Cosby Donald Philipps Smallpei Improvements relating to packing rings
US3712647A (en) * 1969-11-28 1973-01-23 Goetzewerke Pipe connection
GB2069084A (en) * 1980-02-11 1981-08-19 Uni Flange Corp Flanged element for pipe couplings
US4659091A (en) * 1982-09-16 1987-04-21 Goetze Ag Sealing ring for sealing an articulated connection
DE3821194A1 (en) * 1988-06-23 1989-12-28 Goetze Ag Sealing ring for pipe connections, especially those in exhaust pipes
US5314213A (en) * 1989-09-14 1994-05-24 Georg Fischer N.V. Pipe coupling
EP0794378A2 (en) * 1996-03-04 1997-09-10 Georg Fischer WAGA N.V. A coupling device
FR2851961A1 (en) * 2003-03-06 2004-09-10 Renault Sa Turbo-compressor collector and exhaust collector connecting device for use in vehicle, has ring mounted axially on section of exit end of exhaust collector or on section of input end of turbo compressor collector

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB559013A (en) * 1942-07-25 1944-02-01 Cosby Donald Philipps Smallpei Improvements relating to packing rings
US3712647A (en) * 1969-11-28 1973-01-23 Goetzewerke Pipe connection
GB2069084A (en) * 1980-02-11 1981-08-19 Uni Flange Corp Flanged element for pipe couplings
US4659091A (en) * 1982-09-16 1987-04-21 Goetze Ag Sealing ring for sealing an articulated connection
DE3821194A1 (en) * 1988-06-23 1989-12-28 Goetze Ag Sealing ring for pipe connections, especially those in exhaust pipes
US5314213A (en) * 1989-09-14 1994-05-24 Georg Fischer N.V. Pipe coupling
EP0794378A2 (en) * 1996-03-04 1997-09-10 Georg Fischer WAGA N.V. A coupling device
FR2851961A1 (en) * 2003-03-06 2004-09-10 Renault Sa Turbo-compressor collector and exhaust collector connecting device for use in vehicle, has ring mounted axially on section of exit end of exhaust collector or on section of input end of turbo compressor collector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104912689A (en) * 2015-06-27 2015-09-16 奇瑞商用车（安徽）有限公司 Sealing structure of vehicle exhaust system and sealing method

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