DE19902215A1 - Exhaust pipe link fitting for use on road vehicle decouples vibrations using two bushes linked by large number of radially angled bridging flanges - Google Patents

Exhaust pipe link fitting for use on road vehicle decouples vibrations using two bushes linked by large number of radially angled bridging flanges

Info

Publication number
DE19902215A1
DE19902215A1 DE1999102215 DE19902215A DE19902215A1 DE 19902215 A1 DE19902215 A1 DE 19902215A1 DE 1999102215 DE1999102215 DE 1999102215 DE 19902215 A DE19902215 A DE 19902215A DE 19902215 A1 DE19902215 A1 DE 19902215A1
Authority
DE
Germany
Prior art keywords
bushes
linked
exhaust pipe
road vehicle
large number
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Withdrawn
Application number
DE1999102215
Other languages
German (de)
Inventor
Bernd Fuhrmann
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.)
Tenneco GmbH
Original Assignee
Heinrich Gillet 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 Heinrich Gillet GmbH filed Critical Heinrich Gillet GmbH
Priority to DE1999102215 priority Critical patent/DE19902215A1/en
Publication of DE19902215A1 publication Critical patent/DE19902215A1/en
Withdrawn legal-status Critical Current

Links

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
    • F01N13/1805—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
    • F16L27/1004—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
    • 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
    • F16L27/1021—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations comprising an intermediate resilient element, e.g. a ring
    • 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
    • F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
    • F16L27/11—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
    • 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
    • F16L51/00—Expansion-compensation arrangements for pipe-lines
    • F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube

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

An exhaust pipe fitting on a road vehicle decouples vibrations between two different sections of an exhaust system. The fitting consists of two bushes (1,2) linked by a number of radially angled bridging flanges (8). The assembly is surrounded by a corrugated muff (3).

Description

Die Erfindung betrifft Entkopplungselemente in Rohrleitungen, insbesondere in Abgasanlagen von Kraftfahrzeugen, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to decoupling elements in pipelines, in particular in Exhaust systems of motor vehicles, according to the preamble of claim 1.

Um die Schüsse von Rohrleitungen gegeneinander zu entkoppeln, verwendet man sogenannte Balgabkoppelelemente, Schlauchgelenke und dergleichen. Diese besitzen zwei Anschlußstutzen, mit deren Hilfe die Verbindung zu den jeweiligen Rohrschüssen hergestellt wird, und ein bewegliches Mittelteil. Für das Mittelteil gibt es zwei grundsätzliche Konstruktionen. Die eine Konstruktion verwendet zwei konzentrische Rohrstücke, zwischen denen sich ein Lagerring, beispielsweise ein Drahtpreßring, befindet. Die andere Konstruktion verwendet aus einem Rohrstück geschnittene oder aus einem Blechstreifen gefaltete, gegeneinander bewegliche Wendeln. In beiden Fällen muß durch ein außenliegendes Element sichergestellt werden, daß die Bewegung der beiden Rohrstutzen gegeneinander in axialer, radialer und Drehrichtung auf konstruktiv zulässige Werte begrenzt wird. Falls die Beweglichkeit der Rohrstutzen gegeneinander durch einen elastischen Lagerring erreicht wird, sind an den Rohren entsprechende Anschläge vorgesehen; falls die Beweglichkeit durch Wendeln erzeugt wird, werden Schläuche aus Drahtgestrick, -gewebe oder -geflecht verwendet.To decouple the shots of pipelines against each other, one uses so-called bellows coupling elements, hose joints and the like. These have two Connection piece, with the help of which the connection to the respective pipe sections is established and a movable middle part. There are two basic ones for the middle section Constructions. One construction uses two concentric pipe sections, between which is a bearing ring, for example a wire press ring. The other Construction used cut from a piece of pipe or from a sheet metal strip folded, mutually movable spirals. In both cases, a external element be ensured that the movement of the two pipe sockets limited against each other in the axial, radial and direction of rotation to design permissible values becomes. If the pipe sockets can move against each other by an elastic Appropriate stops are provided on the tubes; if the Flexibility is generated by helices, hoses are made of wire mesh or braid used.

Es versteht sich, daß die Herstellung und Montage dieser die Beweglichkeit begrenzenden Elemente mit zusätzlichen Kosten verbunden ist. Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Entkopplungselement anzugeben, welches ohne solche Elemente auskommt.It is understood that the manufacture and assembly of these limit mobility Items associated with additional costs. The present invention is therefore the Task based on specifying a decoupling element, which without such elements gets along.

Diese Aufgabe wird gelöst durch ein Entkopplungselement mit den Merkmalen des Anspruchs 1.This object is achieved by a decoupling element with the features of Claim 1.

Die vorliegende Erfindung beruht auf dem Grundprinzip, als Mittelteil ein Rohr zu verwenden, in dessen Wand parallele Längsschlitze eingearbeitet werden, so daß parallele Stege stehen bleiben. Diese Stege werden dann wenigstens einmal V-förmig radial verformt. Sie bilden auf diese Weise Federn, die es ermöglichen, daß die beiden Rohrstutzen in jeder Richtung relativ zueinander bewegt werden können. Da die Anschlußstutzen nach wie vor materialschlüssig miteinander verbunden sind, ist ihre relative Beweglichkeit begrenzt.The present invention is based on the basic principle of using a tube as the central part, parallel longitudinal slots are worked into its wall, so that there are parallel webs stay. These webs are then radially deformed at least once in a V-shape. You educate this way springs that allow the two pipe sockets in any direction  can be moved relative to each other. Since the connecting piece is still their material mobility, their relative mobility is limited.

Vorzugsweise sind die V-förmig verformten Stege in Richtung zur Rohrachse gebogen. Sie bilden dabei für die Gasströmung eine Art Venturi-Düse, die die Gasströmung nur minimal beeinflußt. Vorteilhaft ist dabei, daß die Außenabmessungen des Entkopplungselementes nicht vergrößert werden.The V-shaped webs are preferably bent in the direction of the tube axis. she form a kind of Venturi nozzle for the gas flow, which minimizes the gas flow influenced. It is advantageous that the outer dimensions of the decoupling element not be enlarged.

Falls das Entkopplungselement gasdicht sein soll, kann wie an sich bekannt ein Wellrohr angebracht werden, dessen beide Enden mit den Anschlußstutzen gasdicht verschweißt werden.If the decoupling element is to be gas-tight, a corrugated tube can be used, as is known per se be attached, both ends of which are welded gas-tight to the connecting pieces become.

Anhand der Zeichnung soll die Erfindung in Form von Ausführungsbeispielen näher erläutert werden. Es zeigen jeweils rein schematischThe invention is to be explained in more detail in the form of exemplary embodiments with reference to the drawing become. Each show purely schematically

Fig. 1 eine Draufsicht auf ein erstes Entkopplungselement, Fig. 1 is a plan view of a first decoupling element,

Fig. 2 eine Ansicht der Stimseite des Entkopplungselements der Fig. 1 und Fig. 2 is a view of the front side of the decoupling element of Fig. 1 and

Fig. 3 eine perspektivische Darstellung eines zweiten Entkopplungselements. Fig. 3 is a perspective view of a second decoupling element.

Fig. 1 zeig rein schematisch eine Draufsicht auf ein erstes rohrförmiges Entkopplungselement. Man erkennt zwei Anschlußstutzen 1, 2 und dazwischen ein bewegliches Mittelteil 3. Ein mit Hilfe von Halteringen 5 und Schweißnähten 6 mit den Anschlußstutzen 1, 2 verschweißtes, längs geschnitten dargestelltes Wellrohr 4 überdeckt das Mittelteil 3 gasdicht. Fig. 1 shows purely schematically a top view of a first tubular decoupling element. Two connecting pieces 1 , 2 and a movable middle part 3 can be seen between them . A corrugated tube 4 , shown in longitudinal section and welded with the aid of retaining rings 5 and welds 6 to the connecting pieces 1 , 2 , covers the middle part 3 in a gas-tight manner.

Das Mittelteil 3 besteht aus einem Rohrstück, in das parallele Längsschlitze 7 eingearbeitet sind. Dadurch bleiben parallele Stege 8 stehen. Diese sind in radialer Richtung etwa V- bzw. düsenförmig in Richtung der Rohrachse verformt. Dadurch erhalten sie die Eigenschaft von Federn, die es erlauben, daß die Rohrstutzen 1, 2 sich in allen Raumrichtungen gegeneinander elastisch federnd bewegen können. The middle part 3 consists of a tube piece, in which parallel longitudinal slots 7 are incorporated. As a result, parallel webs 8 remain. These are approximately V-shaped or nozzle-shaped in the radial direction in the direction of the tube axis. This gives them the property of springs, which allow the pipe socket 1 , 2 to move elastically resiliently against each other in all spatial directions.

Fig. 2 zeigt das Entkopplungselement der Fig. 1 als Draufsicht auf dessen Stimseite. Man erkennt die zur Rohrachse hin gebogenen V-förmigen Stege 8, die den Rohrquerschnitt düsenartig verengen. Trotz der Verengung des Rohrquerschnitts hat das Entkopplungselement nur einen minimalen Druckabfall. Negative Auswirkungen auf das Gasrauschen konnten nicht festgestellt werden. FIG. 2 shows the decoupling element of FIG. 1 as a top view of its front side. One can see the V-shaped webs 8 bent towards the pipe axis, which narrow the pipe cross-section like a nozzle. Despite the narrowing of the pipe cross-section, the decoupling element has only a minimal pressure drop. No negative effects on the gas noise could be determined.

Fig. 3 zeigt eine alternative Ausführungsform. Hier wurden die Stege 8 des Mittelteils 3 radial nach außen verformt. Dadurch sind die beiden Anschlußstutzen 1, 2 wieder in allen Raumrichtungen gegeneinander elastisch verstellbar. Fig. 3 shows an alternative embodiment. Here the webs 8 of the middle part 3 were deformed radially outwards. As a result, the two connecting pieces 1 , 2 are again elastically adjustable in all spatial directions.

Diese Ausführungsform hat einen größeren externen Platzbedarf als die der Fig. 1 und 2. Jedoch wird hier der Rohrquerschnitt nicht verengt, was in manchen Anwendungsfällen gewünscht wird.This embodiment has a larger external space requirement than that of FIGS. 1 and 2. However, the pipe cross section is not narrowed here, which is desirable in some applications.

Claims (4)

1. Entkopplungselement in Rohrleitungen, insbesondere in Abgasanlagen von Kraftfahrzeugen, umfassend
  • - einen ersten Rohrstutzen (1),
  • - einen zweiten Rohrstutzen (2)
  • - und ein bewegliches Mittelteil (3)
1. Decoupling element in pipelines, in particular in exhaust systems of motor vehicles, comprising
  • - a first pipe socket ( 1 ),
  • - a second pipe socket ( 2 )
  • - And a movable middle part ( 3 )
gekennzeichnet durch die Merkmale:
  • - das Mittelteil (3) besteht aus einem Rohrstück, in dessen Wand parallele Längsschlitze (7) eingearbeitet sind, so daß parallele Stege (8) stehenbleiben,
  • - die Stege (8) sind in radialer Richtung wenigstens einmal etwa düsen- bis V-förmig verformt.
characterized by the characteristics:
  • - The middle part ( 3 ) consists of a tube piece, in the wall of which parallel longitudinal slots ( 7 ) are incorporated, so that parallel webs ( 8 ) remain,
  • - The webs ( 8 ) are deformed at least once in the radial direction approximately to V-shaped.
2. Entkopplungselement nach Anspruch 1, gekennzeichnet durch das Merkmal:
  • - die Stege (8) sind in Richtung der Rohrachse verformt.
2. Decoupling element according to claim 1, characterized by the feature:
  • - The webs ( 8 ) are deformed in the direction of the tube axis.
3. Entkopplungselement nach Anspruch 1 oder 2, gekennzeichnet durch das Merkmal:
  • - ein Wellrohr (4) verschließt das Mittelteil (3) gasdicht.
3. Decoupling element according to claim 1 or 2, characterized by the feature:
  • - A corrugated tube ( 4 ) closes the middle part ( 3 ) gas-tight.
DE1999102215 1999-01-21 1999-01-21 Exhaust pipe link fitting for use on road vehicle decouples vibrations using two bushes linked by large number of radially angled bridging flanges Withdrawn DE19902215A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999102215 DE19902215A1 (en) 1999-01-21 1999-01-21 Exhaust pipe link fitting for use on road vehicle decouples vibrations using two bushes linked by large number of radially angled bridging flanges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999102215 DE19902215A1 (en) 1999-01-21 1999-01-21 Exhaust pipe link fitting for use on road vehicle decouples vibrations using two bushes linked by large number of radially angled bridging flanges

Publications (1)

Publication Number Publication Date
DE19902215A1 true DE19902215A1 (en) 2000-07-27

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ID=7894904

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999102215 Withdrawn DE19902215A1 (en) 1999-01-21 1999-01-21 Exhaust pipe link fitting for use on road vehicle decouples vibrations using two bushes linked by large number of radially angled bridging flanges

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10119075A1 (en) * 2001-04-19 2002-10-24 Leybold Vakuum Gmbh Vacuum line for connecting turbomolecular vacuum pump with e.g. analysis apparatus comprises flexible hose section fitted with actively controlled axial magnetic bearing which acts as vibration damper
WO2008047168A1 (en) * 2006-10-19 2008-04-24 Edwards Limited Vibration isolator
FR3048276A1 (en) * 2016-02-29 2017-09-01 Airbus Operations Sas BELLOW WITH ANTI-RADIAL MOVEMENT STRUCTURE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10119075A1 (en) * 2001-04-19 2002-10-24 Leybold Vakuum Gmbh Vacuum line for connecting turbomolecular vacuum pump with e.g. analysis apparatus comprises flexible hose section fitted with actively controlled axial magnetic bearing which acts as vibration damper
WO2008047168A1 (en) * 2006-10-19 2008-04-24 Edwards Limited Vibration isolator
JP2010507040A (en) * 2006-10-19 2010-03-04 エドワーズ リミテッド Vibration isolator
US8322694B2 (en) 2006-10-19 2012-12-04 Edwards Limited Vibration isolator
TWI407025B (en) * 2006-10-19 2013-09-01 Edwards Ltd Vibration isolator
FR3048276A1 (en) * 2016-02-29 2017-09-01 Airbus Operations Sas BELLOW WITH ANTI-RADIAL MOVEMENT STRUCTURE

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