EP2153039A1 - Dispositif d'étanchéité pour des raccords de conduites de gaz chauds, notamment des conduites de gaz d'échappement de moteurs à combustion interne - Google Patents

Dispositif d'étanchéité pour des raccords de conduites de gaz chauds, notamment des conduites de gaz d'échappement de moteurs à combustion interne

Info

Publication number
EP2153039A1
EP2153039A1 EP08707611A EP08707611A EP2153039A1 EP 2153039 A1 EP2153039 A1 EP 2153039A1 EP 08707611 A EP08707611 A EP 08707611A EP 08707611 A EP08707611 A EP 08707611A EP 2153039 A1 EP2153039 A1 EP 2153039A1
Authority
EP
European Patent Office
Prior art keywords
sealing
sealing arrangement
arrangement according
sealing element
heat
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Withdrawn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
EP08707611A
Other languages
German (de)
English (en)
Inventor
Wojtek Kolasinski
Wilhelm Kullen
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.)
ElringKlinger AG
Original Assignee
ElringKlinger AG
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 ElringKlinger AG filed Critical ElringKlinger AG
Publication of EP2153039A1 publication Critical patent/EP2153039A1/fr
Withdrawn legal-status Critical Current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
    • F01N13/14—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 having thermal insulation
    • 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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/064—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing combining the sealing function with other functions
    • 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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/02—Exhaust treating devices having provisions not otherwise provided for for cooling the device
    • F01N2260/024—Exhaust treating devices having provisions not otherwise provided for for cooling the device using a liquid
    • 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
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/20—Exhaust treating devices having provisions not otherwise provided for for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device

Definitions

  • the invention relates to a sealing arrangement for connections to hot gases leading lines, especially exhaust pipes to internal combustion engines, with at least one respective gas channel with respect to the outside gas-tight enclosing sealing element.
  • the invention has for its object to provide a seal assembly for hot gases leading lines, in particular exhaust pipes, are available, which meets the requirements of the stability requirements in a particular degree. According to the invention this object is achieved by a sealing arrangement having the features of claim 1 in its entirety.
  • the essential feature of the invention is accordingly that a counteracting a thermal overstressing of the sealing element means is provided.
  • increasing temperatures which can occur in modern systems at critical zones, lead primarily to the reduction of the creep rupture strengths, which means that measures which reduce the thermal loading of the sealing element lead to significantly improved creep rupture strengths.
  • the arrangement may in this case be such that the means provided for reducing the thermal load acts directly on the sealing element and / or a connecting flange of the line connection which forms part of the sealing arrangement.
  • a heat-insulating means can be provided, again in operative connection with the connecting flange or the sealing element or both with this and with that.
  • the arrangement may be such that a combined cooling and thermal effecting means is provided, in turn acting on the sealing element or flange or both on this and on that.
  • the arrangement can be made in such a way that the sealing arrangement comprises a space for a liquid or gaseous cooling medium.
  • the space for the cooling medium can have one or more coolant channels.
  • the space for the cooling medium may be at least partially formed within the sealing element, wherein the arrangement may be made so that the space is in communication with located outside the sealing element cooling channels.
  • the outer cooling channels may be provided with external cooling fins for heat dissipation.
  • cooling channels may be in communication with an active, outer cooling circuit.
  • the sealing element may be formed in multiple layers, each with one on a contact surface or flange sealing outer sealing layer, wherein the space for the cooling medium and / or a good heat-conducting intermediate layer between the outer sealing layers of the sealing element is or are.
  • the arrangement can be made so that insulating material is provided as a heat-insulating means between the flange surfaces and facing surfaces of the sealing member.
  • this can projecting outwardly with a heat-dissipating surface forming end portion over the outer ends of the gasket layers.
  • Fig. 1 is a highly schematically simplified sketch-like representation for explaining the basic principle of the invention
  • FIG. 2 shows an exaggeratedly large, highly schematically simplified longitudinal section of a first exemplary embodiment of FIG
  • FIG. 3 to 8 of FIG. 2 are similar representations of further embodiments of the seal assembly according to the invention.
  • the sealing arrangement 1 illustrates the use of the sealing arrangement according to the invention at a junction of an exhaust pipe system, for example at the transition point between a manifold and a turbocharger of an internal combustion engine, wherein the seal assembly 1, the seal between a connecting flange 3 on the manifold and a connecting flange. 5 of the turbocharger forms.
  • the sealing arrangement 1 is designed as a sealing cooling structure, the design of which is described in more detail below with reference to the embodiments shown in FIGS. 2 to 8.
  • the operating principle of the cooling structure is that an active or passive heat dissipation, measures for thermal insulation or a combination of heat dissipation and thermal insulation are provided.
  • the seal assembly 1 is additionally provided with a temperature sensor device 7, which controls their operation when using active cooling devices.
  • 2 shows a first exemplary embodiment of the sealing arrangement 1 formed from connecting flange 3, connecting flange 5 and sealing element 9 installed therebetween, the sealing element 9 being constructed in multiple layers.
  • These are two outer gasket layers 1 1 of beaded sheet metal for the sealing contact of the beads 14 on the flange 3 and the flange 5.
  • Between the gasket layers 11 is a good heat-conducting intermediate layer 13 of a good heat conducting material, in the embodiment of copper sheet.
  • the beads 14 are formed on the outer gasket layers 11 so that the outer gasket layers 1 1 abut the inner intermediate layer 13 at a distance from the outer end of the sealing element 9, but the gasket layers 11 against the outer one Run divergently towards the end so that a space 15 adjoining the intermediate layer 13 on both sides is formed.
  • This is intended to hold a gaseous or liquid cooling medium and arn outer end closed by a closure plate 17.
  • the space 15 is connected via a passage 19 in the closure plate 17 with outer cooling channels 21 which are received in the embodiment shown in a cooling fins having cooling body 23 or, in the case that an active cooling is provided, are connected to a coolant circuit.
  • the thermal load of the sealing member 9 is reduced by heat dissipation, wherein in particular the heat transport takes place via the end portion 25 of the heat-conducting intermediate layer 13 to the cooling medium located in the space 15, from which the heat through the cooling channels 21 to the outside is dissipated.
  • Fig. 3 shows an embodiment in which the reduction of the thermal load is seen by means of thermal insulation.
  • the discount is sealing element 9 in turn constructed multi-layered, namely with outer gasket layers 1 1 of beaded sheet metal, which seal at outer beads 14 on the connecting flanges 3 and 5.
  • the connecting flanges 3 and 5 facing surfaces of the gasket layers 1 1 are not in direct contact with the operating high temperatures connecting flanges 3 and 5, but are isolated from the flanges 3 and 5 via a consisting of an insulating material 27 ring body, which is designed relatively thick-walled and may consist of mica.
  • This thermal insulation between the connecting flanges 3 and 5 and the sealing member 9 leads to a reduction of its temperature during operation and thus to the reduction of the thermal load.
  • FIG. 4 differs from the example of FIG. 3 in that both thermal insulation according to the example of FIG. 3 is provided to reduce the thermal load of the sealing element 9, as well as additional heat dissipation by a good heat-conducting Interposed layer 13 between the gasket layers 11, wherein the intermediate layer 13 protrudes with its end portion 29 to the outside, so that an additional heat dissipation to the outside is possible, for example by direct air cooling or, according to the solution of Fig. 2, by means of an associated cooling system (not shown).
  • Fig. 5 again illustrates an example in which a heat dissipation by means of a space 15 is provided for a cooling medium, wherein the space 15 is located within an inner ring body 31 disposed between outer gasket layers 1 1.
  • This may be formed by a welded body, which, as indicated schematically at 33, may have a coolant connection (not shown).
  • the outer sealing layers 1 1 are in turn made of beaded sheet metal, wherein the seal in each case at beads 14 with respect to the connecting flanges 3 and 5 with Small contact sealing takes place, so that between flanges 3, 5 and the gasket layers 11 only a small area heat transfer area exists.
  • the thermal load acting on the sealing element 9 from the exhaust gas flow itself is reduced by the heat dissipation via the cooling medium located in the space 15.
  • Fig. 6 shows an embodiment which corresponds to the example of Fig. 5, except that the sealing member 9 is designed as a single layer, wherein the annular body 31 both the space 15 for the cooling medium as well as existing sealing areas 35 for small-scale contact with the Connecting flanges 3 and 5 forms.
  • FIG. 7 illustrates an embodiment in which the sealing element 9 is in turn multi-layered, wherein outer sealing layers 1 1 from sick metal plate in the region of the bead 14 sealingly abut the connecting flanges 3 and 5, wherein the contact again takes place over a small area.
  • a heat sink 37 integrally formed on the outwardly projecting end region 29 of the intermediate layer 13, forms cooling surfaces 39 and in addition thereto is also provided with an internal cooling channel 41 containing a cooling medium, wherein an active or passive cooling system may be provided.
  • Fig. 8 shows an embodiment which corresponds to the example of Fig. 7, except that the sealing member 9 is designed as a single layer, wherein an annular body 31, as in the example of Fig. 6, with projecting sealing portions 35 in small-area contact the connecting flanges 3 and 5 seals.
  • the annular body 31 merges at its end region 29 directly into the cooling body 37, which, as in FIG. 7, has an inner cooling channel 41.

Abstract

Dispositif d'étanchéité pour des raccords de conduites de gaz chauds, notamment des conduites de gaz d'échappement de moteurs à combustion interne, comportant au moins un élément d'étanchéité (9) fermant de manière étanche aux gaz un conduit de gaz correspondant relativement à sa face externe. L'invention est caractérisée en ce que ce dispositif d'étanchéité (1) comporte un moyen (13,15,21) qui réduit la charge thermique de l'élément d'étanchéité (9).
EP08707611A 2007-05-07 2008-02-08 Dispositif d'étanchéité pour des raccords de conduites de gaz chauds, notamment des conduites de gaz d'échappement de moteurs à combustion interne Withdrawn EP2153039A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007021221A DE102007021221A1 (de) 2007-05-07 2007-05-07 Dichtungsanordnung für Verbindungen an Heißgase führenden Leitungen, insbesondere Abgasleitungen an Verbrennungsmotoren
PCT/EP2008/000965 WO2008135105A1 (fr) 2007-05-07 2008-02-08 Dispositif d'étanchéité pour des raccords de conduites de gaz chauds, notamment des conduites de gaz d'échappement de moteurs à combustion interne

Publications (1)

Publication Number Publication Date
EP2153039A1 true EP2153039A1 (fr) 2010-02-17

Family

ID=39322324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08707611A Withdrawn EP2153039A1 (fr) 2007-05-07 2008-02-08 Dispositif d'étanchéité pour des raccords de conduites de gaz chauds, notamment des conduites de gaz d'échappement de moteurs à combustion interne

Country Status (6)

Country Link
US (1) US20100090417A1 (fr)
EP (1) EP2153039A1 (fr)
JP (1) JP2010526243A (fr)
CN (1) CN101652543A (fr)
DE (1) DE102007021221A1 (fr)
WO (1) WO2008135105A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102108914A (zh) * 2011-01-26 2011-06-29 重庆长安汽车股份有限公司 一种汽车排气系统平面法兰密封垫片

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1814283A (en) * 1928-10-15 1931-07-14 Victor Mfg & Gasket Co Gasket
JP2005140003A (ja) * 2003-11-06 2005-06-02 Toyota Motor Corp ガスケット
DE102004058646A1 (de) * 2004-12-06 2006-06-14 Fev Motorentechnik Gmbh Mehrzylindrige Brennkraftmaschine
DE102005041826A1 (de) * 2005-09-02 2007-03-08 Federal-Mogul Sealing Systems Gmbh Metallische Flachdichtung für thermisch belastete Verbindungen fluidführender Leitungen
FR2894284A1 (fr) * 2005-12-01 2007-06-08 Freudenberg Meillor Soc Par Ac Joint de diffusion

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008135105A1 *

Also Published As

Publication number Publication date
DE102007021221A1 (de) 2008-11-13
CN101652543A (zh) 2010-02-17
US20100090417A1 (en) 2010-04-15
JP2010526243A (ja) 2010-07-29
WO2008135105A1 (fr) 2008-11-13

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