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EP0950841B1 - Raccord de tuyaux détachable - Google Patents

Raccord de tuyaux détachable Download PDF

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Publication number
EP0950841B1
EP0950841B1 EP99105517A EP99105517A EP0950841B1 EP 0950841 B1 EP0950841 B1 EP 0950841B1 EP 99105517 A EP99105517 A EP 99105517A EP 99105517 A EP99105517 A EP 99105517A EP 0950841 B1 EP0950841 B1 EP 0950841B1
Authority
EP
European Patent Office
Prior art keywords
pipe connection
flange
connection according
chamber
disc
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.)
Expired - Lifetime
Application number
EP99105517A
Other languages
German (de)
English (en)
Other versions
EP0950841A1 (fr
Inventor
Klaus Dipl.-Ing. Schmitt
Klaus Dipl.-Ing. Cierocki
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.)
Federal Mogul Sealing Systems GmbH
Original Assignee
Federal Mogul Sealing Systems 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 Federal Mogul Sealing Systems GmbH filed Critical Federal Mogul Sealing Systems GmbH
Publication of EP0950841A1 publication Critical patent/EP0950841A1/fr
Application granted granted Critical
Publication of EP0950841B1 publication Critical patent/EP0950841B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/24—Methods or apparatus for fitting, inserting or repairing different elements by bolts, screws, rivets or the like

Definitions

  • the invention relates to a detachable pipe connection for sealing exhaust pipes of internal combustion engines, with a flange with a chamber for receiving a Beaded annular disc.
  • Exhaust pipes from internal combustion engines usually consist of several Single pipes that are directly connected to each other on the vehicle and against Leakage of media to be sealed. It becomes like a sleeve insertable pipes are used, which are attached via pipe clamps. Moreover, it is known to arrange flange surfaces at the pipe ends, between which seals are arranged and by means of fasteners such. B. screws are connected.
  • DE OS 1959 666 shows a detachable pipe connection with flange surfaces, in which an annular helical spring is axially clamped between the flange surfaces.
  • the coil spring seals directly on the pipe surfaces.
  • an elastic sealing ring made of elastomeric material can be connected upstream of the coil spring.
  • Exhaust systems in modern engines have to be designed for ever higher temperatures and longer operating times. Sealing bodies made of non-metallic materials no longer meet the loads. Sealing directly on the exhaust pipes also often poses problems because the pipes do not have the necessary surface topography. Inadequate sealing means that oxygen gets into the exhaust gas flow. This oxygen enrichment is detected by the engine electronics and immediately causes fuel enrichment in the fuel-air mixture. As a result, more air-polluting substances flow into the atmosphere.
  • a 1 is a flange seal made of metal for high pressures and Temperatures.
  • a disc made of coaxially corrugated sheet metal has flanged soft metal sealing washers at the two end regions. When the flanges are screwed together, the soft metal is plastically deformed and seals in the chamber.
  • the disadvantage of this system is that after each Loosening the connection a new washer must be used.
  • the invention has for its object a pipe connection for sealing To create exhaust pipes that can be used at high temperatures and also after repeated loosening of the connecting parts can still be used so that a Micro-sealing is guaranteed.
  • FIG. 1 shows a pipe connection 1 according to the invention
  • Tube ends 2, 2 ' are each a flange 3 and a corresponding counter flange welded.
  • the flange 3 has an annular chamber 5, in which one with Beads 6 provided disc 7 is arranged.
  • the disc 7 is on the flanks 8,9 and at the bottom 10 of the chamber 5.
  • the beads 6 are both in the area of the bottom 10 also provided in the area of the flanks 8.9.
  • the counter flange 4 has an axially directed projection 11, which is dimensioned such that it can be inserted into the chamber 5 and the beads axially and radially with a defined sealing pressure for abutment both on the plug body 11 and on the bottom 10 and on the flanks 8 , 9 brings.
  • suitable fastening means for example a screw connection
  • the flanks can be joined together and a seal is created via the beads 6 in both the radial and the axial direction.
  • This series connection of beads 6 creates several sealing zones, which ensures micro-sealing, regardless of the surface properties of the pipes 2, 2 '. As shown in FIG.
  • FIG. 2 shows an alternative embodiment of the invention, in which a ring 14 is pressed into the chamber 5.
  • the counter flange 4 ' can be formed symmetrically to the flange 3.
  • a disk 7 'according to FIG. 2 has been used, which cooperates with the flanges 3, 4 disclosed in FIG.
  • the pipe connection can Assembly work on the motor vehicle can be easily solved and reassembled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Gasket Seals (AREA)
  • Joints With Pressure Members (AREA)

Claims (7)

  1. Raccord de tuyaux démontable pour l'étanchéité de tuyaux d'échappement dans des machines à combustion interne, ledit raccord étant pourvu d'une bride ayant une chambre destinée à la réception d'une rondelle annulaire pourvue de moulures, caractérisé en ce que les moulures (6) de la rondelle (7, 7') reposent de manière étanche contre au moins un flanc (8, 9) et sur le fond (10) de la chambre (5, 5') et en ce qu'un corps d'insert insérable dans la chambre (5, 5') amène les moulures (6) en appui avec une compression d'étanchéité définie.
  2. Raccord de tuyaux selon la revendication 1, caractérisé en ce que le corps d'insert est une bague (14).
  3. Raccord de tuyaux selon la revendication 1 ou 2, caractérisé en ce que le corps d'insert est une projection (11) orientée axialement et réalisée de manière monobloc par une contre-bride (4, 4').
  4. Raccord de tuyaux selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la rondelle (7') comprend une zone d'extrémité (12, 13) qui fait saillie hors de la chambre (5, 5'), ladite zone étant repliée avec un angle alpha égal à 90° et comprend également une moulure (6) qui repose contre une surface de la bride (3) pour réaliser une étanchéité radiale.
  5. Raccord de tuyaux selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'épaisseur de la rondelle (7, 7') est situé dans le domaine allant de 0,1 à 0,3 millimètre.
  6. Raccord de tuyaux selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la rondelle (7, 7') est réalisée en acier à ressort.
  7. Raccord de tuyaux selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la bride (3) et la contre-bride (4, 4') sont réalisées sous la forme de pièces séparées et peuvent être reliées au tuyau d'échappement (2, 2') par liaison de matière.
EP99105517A 1998-04-16 1999-03-18 Raccord de tuyaux détachable Expired - Lifetime EP0950841B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19816862 1998-04-16
DE19816862A DE19816862C2 (de) 1998-04-16 1998-04-16 Lösbare Rohrverbindung

Publications (2)

Publication Number Publication Date
EP0950841A1 EP0950841A1 (fr) 1999-10-20
EP0950841B1 true EP0950841B1 (fr) 2003-07-30

Family

ID=7864708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99105517A Expired - Lifetime EP0950841B1 (fr) 1998-04-16 1999-03-18 Raccord de tuyaux détachable

Country Status (3)

Country Link
EP (1) EP0950841B1 (fr)
DE (2) DE19816862C2 (fr)
ES (1) ES2201586T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006045584A1 (de) * 2006-09-27 2008-05-15 Elringklinger Ag Dichtungssystem
DE102007019330A1 (de) * 2007-04-24 2008-10-30 Reinz-Dichtungs-Gmbh Dreidimensionale Flachdichtung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1178714A (en) * 1915-07-12 1916-04-11 Stanley Griffin Coupling-joint for pipes and other connections.
US1490805A (en) * 1921-07-18 1924-04-15 John J Divekey Closet flange
US1715854A (en) * 1923-03-06 1929-06-04 Standard Dev Co Fluid-tight joint
DE647885C (de) * 1932-12-20 1937-07-15 Otto Dietrich Rohrleitungsbau Selbstdichtende Rohrverbindung mit Flanschen, Bunden o. dgl.
FR868188A (fr) * 1940-12-19 1941-12-23 Cfcmug Dispositif de joint étanche permettant l'assemblage des différentes parties d'une même capacité
FR1409193A (fr) * 1964-09-29 1965-08-20 Babcock & Wilcox Co Joint détanchéité
DE1959666C3 (de) * 1969-11-28 1975-04-03 Goetzewerke Friedrich Goetze Ag, 5673 Burscheid Klemm- und Dichtring, insbesondere für Auspuffrohrverbindungen
CH606876A5 (fr) * 1975-10-09 1978-11-15 Klinger Ag
DE3727036A1 (de) * 1987-08-13 1989-02-23 Burgmann Dichtungswerk Feodor Flanschverbindung mit einer mehrschichtigen dichtung
DE19503285A1 (de) * 1995-02-02 1996-08-08 Rudolf P Fritsch Statische Dichtung

Also Published As

Publication number Publication date
EP0950841A1 (fr) 1999-10-20
DE59906407D1 (de) 2003-09-04
ES2201586T3 (es) 2004-03-16
DE19816862C2 (de) 2000-09-21
DE19816862A1 (de) 1999-10-28

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