DE102007062850A1 - Flexible and rigid pipeline elements connection element for e.g. exhaust gas line in passenger car, has layer between outer and inner pipes, and three balls limiting intermediate space and provided in layer - Google Patents
Flexible and rigid pipeline elements connection element for e.g. exhaust gas line in passenger car, has layer between outer and inner pipes, and three balls limiting intermediate space and provided in layer Download PDFInfo
- Publication number
- DE102007062850A1 DE102007062850A1 DE102007062850A DE102007062850A DE102007062850A1 DE 102007062850 A1 DE102007062850 A1 DE 102007062850A1 DE 102007062850 A DE102007062850 A DE 102007062850A DE 102007062850 A DE102007062850 A DE 102007062850A DE 102007062850 A1 DE102007062850 A1 DE 102007062850A1
- Authority
- DE
- Germany
- Prior art keywords
- connecting element
- balls
- layer
- element according
- pipe sections
- 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.)
- Withdrawn
Links
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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/1004—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations introduced in exhaust pipes for hot gases
-
- 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
-
- 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
- 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
- F16L27/103—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations in which a flexible element, e.g. a rubber-metal laminate, which undergoes constraints consisting of shear and flexure, is sandwiched between partly curved surfaces
-
- 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
- F01N2530/00—Selection of materials for tubes, chambers or housings
- F01N2530/18—Plastics material, e.g. polyester resin
- F01N2530/20—Plastics material, e.g. polyester resin reinforced with mineral or metallic fibres
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Joints Allowing Movement (AREA)
Abstract
Description
Die Erfindung betrifft ein Verbindungselement für flexible Leitungselemente. Mit derartigen Verbindungselementen werden flexible und starre Leitungselemente verbunden. Insbesondere sind die nachfolgend beschriebenen Verbindungselemente für den Einsatz in schwingungsbeanspruchten Rohrleitungen geeignet. Anwendungsbeispiele sind Abgasleitungen in Kraftfahrzeugen, vorzugsweise in Nutzfahrzeugen aber auch in Personenkraftwagen.The The invention relates to a connecting element for flexible Line elements. With such fasteners are flexible and rigid conduit elements connected. In particular, the following are described fasteners for use in vibration-stressed Suitable for pipelines. Application examples are exhaust pipes in motor vehicles, preferably in commercial vehicles but also in Passenger cars.
Die Aufgabe solcher Verbindungselemente besteht darin, einzelne Leitungselemente in Rohrleitungs-Systemen zu verbinden. Ein Beispiel dafür sind flexible Leitungselemente, die zur Entkopplung von Schwingungen und Betriebsbewegungen in Abgasleitungen integriert werden und zu deren Anschluss in den Rohrleitungen die im folgenden beschriebenen Verbindungelemente Verwendung finden.The The object of such fasteners is to individual line elements to connect in piping systems. An example of this is flexible piping elements that decouple vibrations and operating movements are integrated into exhaust pipes and to their connection in the piping described below Connection elements find use.
Aufgrund
der im PKW-Bereich gegenwärtigen und zukünftigen
Forderung nach Gasdichtheit werden die Anschlussenden der flexiblen
Leitungselemente in der Regel mit den angrenzenden Abgasleitungen
verschweißt. Ein Metallbalg ist hier oftmals ein Modul
solcher flexiblen Leitungselemente. Da die großen Durchmesserunterschiede
in den Wellungen des Metallbalgs Turbulenzen erzeugen können,
wird in vielen Fällen ein aus mehreren Bandlagen gewickelter
Metallschlauch in das Leitungselement integriert, um die Erzeugung
von Wirbeln, die in den Balgwellungen entstehen können,
zu vermeiden.
In den Abgasleitungen von Nutzfahrzeugen treten aufgrund von Betriebsbewegungen, Einbaulage und geometrischer Anordnung vermehrt torsionale Verdrehungen auf, die von flexiblen Leitungselementen kompensiert werden müssen. Hier werden oftmals mehrlagige, gewickelte Metallschläuche aus profiliertem Bandmaterial als Entkopplungselement eingesetzt. Insbesondere für den Einsatz in Abgasanlagen von Nutzfahrzeugen sind diese besonders geeignet, da sie im Gegensatz zu Metallbälgen große Verschiebungen in torsionaler Richtung ohne den Aufbau von Strukturspannungen entkoppeln können. Ihr Nachteil jedoch ist die verbleibende Restleckage.In the exhaust pipes of commercial vehicles occur due to operating movements, Installation position and geometric arrangement increase torsional distortions on, which must be compensated by flexible conduit elements. Here are often multi-layered, wound metal hoses made of profiled strip material used as a decoupling element. In particular for use in exhaust systems of commercial vehicles These are particularly suitable because they are unlike metal bellows large displacements in torsional direction without the construction can decouple from structural stresses. Your disadvantage however, the remaining residual leakage is.
Da weltweite gesetzliche Vorschriften den Schadstoff-Ausstoß von Nutzfahrzeugen zukünftig deutlich nach unten regulieren, werden Abgasanlagen vermehrt mit Nachbehandlungsmodulen wie z. B. Rußpartikel-Filtern und SCR-Systemen ausgestattet. Eine verbleibende Restleckage, die nicht nachbehandeltes Abgas aus dem System entweichen lässt, ist nur noch in eingeschränkter Form zulässig. Der Einsatz eines Metallbalgs als flexibles und zugleich gasdichtes Leitungselement ist hier oftmals schwierig, da die orthogonal zur Rotationsachse angeordneten Balgwellen vor allem im torsionalen Lastfall zu großen Spannungen und Spannungsgradienten in der metallischen Struktur führen und somit die Lebensdauer des Leitungselements begrenzen.There worldwide legal regulations pollutant emissions of Regulate Commercial Vehicles Significantly Down In The Future Exhaust systems are increasingly with after-treatment modules such. B. Equipped with particulate filters and SCR systems. A Remaining residual leakage, the non-treated exhaust gas from the System escapes, is only in limited Form allowed. The use of a metal bellows as a flexible and at the same time gastight line element is often difficult here, because the orthogonal to the rotation axis arranged bellows waves before especially in the torsional load case to large voltages and Voltage gradients in the metallic structure lead and thus limit the life of the conduit element.
Eine
zur Kompensation größerer Torsionsverschiebungen
vorgesehene Lösung, die aus zwei zusammengefügten,
wendelgewellten oder ringgewellten Metallbälgen besteht,
wird in
Im optimalen Fall sollte durch das Leitungselement keine Teilung des Abgasstroms erfolgen. Weiterhin ist es vorteilhaft, die torsionalen Verschiebungen aus dem Belastungskollektiv des Metallbalgs zu eliminieren.in the optimal case should not be divided by the conduit element Exhaust flow take place. Furthermore, it is advantageous to the torsional To eliminate shifts from the load collective of the metal bellows.
Hauptaufgabe der Erfindung ist es daher ein Verbindungselement bereitzustellen, dass die von gasdichten, balgartigen Geometrien zu kompensierenden torsionalen Verschiebungen vernachlässigbar klein hält. Das gesamte Belastungskollektiv für die einzusetzenden balgartigen Geometrien reduziert sich somit auf axiale und laterale Verschiebungen. Auf diese Weise wird eine vereinfache Auslegung des Leitungselements ermöglicht und vor allem eine deutlich gesteigerte Lebensdauer erzielt.The main object of the invention is therefore to provide a connecting element that keeps negligibly small the torsional displacements to be compensated by gas-tight, bellows-type geometries. The entire load collective for the bellows-like geometries to be used thus reduces to axial and lateral displacements. In this way, a simplified design of the line element is made possible and, above all, a significantly increased service life is achieved.
Eine weitere Aufgabe der Erfindung ist die Realisierung einer axialen Verschiebemöglichkeit im Bereich des Verbindungselements. Diese ist für den Ausgleich der Einbautoleranzen erforderlich, damit angrenzende flexible, balgartige Elemente in ihrer spannungsfreien Mittellage eingebaut werden können.A Another object of the invention is the realization of an axial Displacement possibility in the area of the connecting element. This is necessary for the compensation of installation tolerances, thus adjoining flexible, bellows-like elements in their tension-free Central position can be installed.
Die
Hauptaufgabe wird erfindungsgemäß mit den Merkmalen
des Anspruchs 1 gelöst. Das Verbindungselement mit torsionalem
Freiheitsgrad besteht nach
Die
weitere Aufgabe der Erfindung, die Realisierung einer axialen Verschiebemöglichkeit,
ist durch die Ausführung in
In
In
Die
Ausführungsform in
Weitere Varianten der beschriebenen Anschlussenden sind realisierbar und basieren auf dem beschriebenen Grundkonzept.Further Variants of the connection ends described can be realized and are based on the described basic concept.
Dabei
können die gezeigten Zeichnungspositionen
- • Gestrickte und gepresste Elemente aus Edelstahl-, Graphit-, Keramik- oder (E-, Silika-, Quarz-)Glasfasern.
- • Gestrickte und gepresste Elemente aus Edelstahl-, Graphit-, Keramik- oder (E-, Silika-, Quarz-)Glasfasern und saugfähigen Fasern, an denen durch Tauchen in eine Flüssigkeit eine Graphit-Anlagerung erzeugt wird.
- • Precursorbeschichtetes Gewebe, bei dem der Grundwerkstoff Aluminiumoxid ist.
- • Precursorbeschichtetes Gewebe, bei dem der Grundwerkstoff glasartig ist.
- • Ein präkeramisches Polymer in fester, gelartiger oder schaumförmiger Konsistenz.
- • Mit temperaturbeständigem Gleitwerkstoff beschichtetes Metall.
- • Mit präkeramischen Polymeren beschichtetes Metall.
- • Faserverstärktes Graphitband.
- • Knitted and pressed elements made of stainless steel, graphite, ceramic or (E, silica, quartz) glass fibers.
- • Knitted and pressed elements made of stainless steel, graphite, ceramic or (E, silica, quartz) glass fibers and absorbent fibers, which are dipped in a liquid to create a graphite attachment.
- • Precursor-coated fabric in which the base material is alumina.
- • Precursor-coated fabric in which the base material is vitreous.
- • A preceramic polymer in solid, gelatinous or foamy consistency.
- • Metal coated with temperature-resistant sliding material.
- • Metal coated with preceramic polymers.
- • Fiber reinforced graphite tape.
Ebenso Kombinationen aus den genannten Zwischenstoffen können für spezielle Anwendungsfälle besonders geeignet sein.As well Combinations of the mentioned intermediates can especially suitable for special applications be.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 19820863 A [0003] - DE 19820863 A [0003]
- - DE 19824095 C2 [0006] - DE 19824095 C2 [0006]
- - DE 10354782 B3 [0007] - DE 10354782 B3 [0007]
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007062850A DE102007062850A1 (en) | 2007-12-21 | 2007-12-21 | Flexible and rigid pipeline elements connection element for e.g. exhaust gas line in passenger car, has layer between outer and inner pipes, and three balls limiting intermediate space and provided in layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007062850A DE102007062850A1 (en) | 2007-12-21 | 2007-12-21 | Flexible and rigid pipeline elements connection element for e.g. exhaust gas line in passenger car, has layer between outer and inner pipes, and three balls limiting intermediate space and provided in layer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007062850A1 true DE102007062850A1 (en) | 2009-06-25 |
Family
ID=40689926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007062850A Withdrawn DE102007062850A1 (en) | 2007-12-21 | 2007-12-21 | Flexible and rigid pipeline elements connection element for e.g. exhaust gas line in passenger car, has layer between outer and inner pipes, and three balls limiting intermediate space and provided in layer |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007062850A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103486388A (en) * | 2013-09-27 | 2014-01-01 | 江苏昊峰管道设备有限公司 | High-pressure rotation compensator |
CN109000074A (en) * | 2018-09-13 | 2018-12-14 | 江苏永昌膨胀节有限公司 | Internal stress free tool overregulates protection heavy wall expansion joint |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19820863A1 (en) | 1998-05-09 | 1999-11-18 | Witzenmann Metallschlauchfab | Flexible pipe element |
DE19824095C2 (en) | 1998-05-29 | 2000-05-18 | Iwk Regler Kompensatoren | Flexible pipe element |
DE10354782B3 (en) | 2003-11-21 | 2005-07-14 | Westfalia Metallschlauchtechnik Gmbh & Co. Kg | Torsional decoupling element for pipelines subject to vibration has bellows-type components offset axially to pipe axis of adjacent line system |
-
2007
- 2007-12-21 DE DE102007062850A patent/DE102007062850A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19820863A1 (en) | 1998-05-09 | 1999-11-18 | Witzenmann Metallschlauchfab | Flexible pipe element |
DE19824095C2 (en) | 1998-05-29 | 2000-05-18 | Iwk Regler Kompensatoren | Flexible pipe element |
DE10354782B3 (en) | 2003-11-21 | 2005-07-14 | Westfalia Metallschlauchtechnik Gmbh & Co. Kg | Torsional decoupling element for pipelines subject to vibration has bellows-type components offset axially to pipe axis of adjacent line system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103486388A (en) * | 2013-09-27 | 2014-01-01 | 江苏昊峰管道设备有限公司 | High-pressure rotation compensator |
CN109000074A (en) * | 2018-09-13 | 2018-12-14 | 江苏永昌膨胀节有限公司 | Internal stress free tool overregulates protection heavy wall expansion joint |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R005 | Application deemed withdrawn due to failure to request examination | ||
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20141223 |