EP2843207B1 - Collecteur de gaz d'échappement doté de manchon d'isolation - Google Patents

Collecteur de gaz d'échappement doté de manchon d'isolation Download PDF

Info

Publication number
EP2843207B1
EP2843207B1 EP14166302.1A EP14166302A EP2843207B1 EP 2843207 B1 EP2843207 B1 EP 2843207B1 EP 14166302 A EP14166302 A EP 14166302A EP 2843207 B1 EP2843207 B1 EP 2843207B1
Authority
EP
European Patent Office
Prior art keywords
flange
exhaust manifold
insulation sleeve
insulating sleeve
inner system
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.)
Not-in-force
Application number
EP14166302.1A
Other languages
German (de)
English (en)
Other versions
EP2843207A1 (fr
Inventor
Elmar Grussmann
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.)
Benteler Automobiltechnik GmbH
Original Assignee
Benteler Automobiltechnik 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 Benteler Automobiltechnik GmbH filed Critical Benteler Automobiltechnik GmbH
Publication of EP2843207A1 publication Critical patent/EP2843207A1/fr
Application granted granted Critical
Publication of EP2843207B1 publication Critical patent/EP2843207B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds 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
    • 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
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/185—Mechanical joints the connection being realised by deforming housing, tube, baffle, plate, or parts thereof
    • 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
    • F01N13/1872—Construction facilitating manufacture, assembly, or disassembly the assembly using stamp-formed parts or otherwise deformed sheet-metal
    • 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
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • 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
    • F01N2450/20—Methods or apparatus for fitting, inserting or repairing different elements by mechanical joints, e.g. by deforming housing, tube, baffle plate or parts thereof
    • 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
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/26—Tubes being formed by extrusion, drawing or rolling

Definitions

  • the present invention relates to an exhaust manifold for an internal combustion engine on a motor vehicle according to the features in the preamble of claim 1.
  • Exhaust manifolds are known from the prior art, which are coupled to an internal combustion engine, so as to centralize the exhaust gas produced during the combustion process for an exhaust gas line and then dissipate via this to the environment.
  • the outer system and the inner system are usually produced in shell construction in such a way that an inner system and an outer system are sometimes formed with multiple shells and then the individual components are coupled to one another by cohesive methods.
  • Object of the present invention is to simplify a known from the prior art Mehrschaligen exhaust manifold in its manufacturing process and to improve its thermal capacity.
  • the exhaust manifold according to the invention for an internal combustion engine on a motor vehicle is designed as an at least two-shell exhaust manifold, which has an inner system and an outer system. Cylinder head side to the engine out a flange is provided, wherein the flange can be coupled to the engine.
  • an insulating sleeve produced as a sheet-metal forming component is provided, which engages the inner system with the flange and with the outer system, wherein the insulating sleeve passes through an opening of the flange and projects projecting beyond the flange into the cylinder head of the internal combustion engine and a circumferential air gap is formed between the insulating sleeve and the inner system ,
  • the flange may in each case be a single flange for each cylinder of the internal combustion engine of the motor vehicle.
  • the flange can also be a flange strip which, for example in the case of a four-cylinder in-line engine, has four openings.
  • Each flange or each opening is then associated with a corresponding insulating sleeve, which passes through the opening of the flange and is formed on the cylinder head side projecting in the direction of the internal combustion engine, so that the exhaust gases are already taken in the exhaust duct of the cylinder head and transferred to the inner system.
  • a thermal relief of the flange, but also of the outer system due to the insulating sleeve is thus achieved by the insulating sleeve.
  • the insulating sleeve, outer system, flange and inner system it is possible with the insulating sleeve, outer system, flange and inner system to couple together, so that an assembly cost of the individual components is reduced among themselves, since all are as it were coupled to a component.
  • a soldering method is very particularly preferred, so that the insulation sleeve is soldered to the individual components and then manufactured in a soldering process, for example in a soldering furnace, in this component region.
  • several welding methods and / or contaminations of the exhaust-gas-carrying components are avoided by means of welding filler metals or welding spatters.
  • a direct heat conduction is reduced by the reduced cross-sectional area at the connection of inner tube to insulation sleeve.
  • wall thicknesses of less than 2 mm, in particular less than 1.5 mm, are used in the insulation sleeves.
  • an additional insulating material for example a fiber mat, to improve the insulating effect between the inner system and the insulating sleeve.
  • the insulating sleeve, the inner system which also protrudes into the flange and is designed as a nozzle, formed encompassing, in particular with a press fit.
  • a press fit it is possible in an initial installation to insert the insulation sleeve in the inner system and postpone the insulation sleeve on the inner system and by the press fit is a positional fixation.
  • Different thermal expansions of the inner system which is formed in particular in the region of the opening of the flange as a nozzle, are compensated by the press fit such that the inner system due to the direct contact with the exhaust gas basically expands more than the insulating sleeve. Consequently, there is always a gas tightness between the inner system and the insulating sleeve in the outlet channel of the cylinder head.
  • the outer system itself is furthermore preferably formed with an end face abutting the outer side of the flange.
  • the insulating sleeve passes through the flange and is thus formed on the outside of the flange at least partially protruding.
  • the insulating sleeve is further preferably embraced by the outer system in such a way that an interference fit is also formed here.
  • the interference fit between an inner circumferential surface of the outer system and the outer circumferential surface of the insulating sleeve is formed. This also makes it possible for an initial installation to suspend the outer system on the insulating sleeve, wherein a first positional fixation takes place by the press fit.
  • the further coupling is then for example by a cohesive process, in particular a soldering, feasible, which additionally integrally coupled to the outer system and the insulating sleeve or the insulating sleeve and the flange and optionally outer system and flange.
  • the insulating sleeve can be produced in particular in the context of the invention as a deep-drawn sheet metal component. This results in the advantage that the insulation sleeve itself has no weld and thus no potential vulnerability is formed due to the thermal load.
  • the thermoforming component also has the advantage that it can be produced from a thermally resistant, but inexpensive material and at the same time offers high freedom of shaping.
  • at least one stepped shoulder is produced on the insulating sleeve, in particular two stepped heels, wherein the stepped heels serve as a positive fitment and / or as a solder depot.
  • the insulating sleeve therefore has a funnel-shaped contour, in particular in relation to its cross-section, wherein the insulating sleeve can be round, oval or even angular in cross-section or in a mixed form of the aforementioned embodiments.
  • the respective step heels can flow smoothly progressive, degressive or else with a step jump into each other and serve as mounting aid or in a further assembly as a solder depot, so that here first a solder additive is applied, then in later Lotvorgang in appropriate version, seats or grooves flows and these coupled gas-tight and cohesively with each other.
  • a circumferential gap in the axial direction is formed at least in sections.
  • air or an insulating material is arranged.
  • the insulating sleeve is coupled to the inner system only in the inner region on the cylinder head or on the projecting into the cylinder head part of the inner system.
  • a gap is then formed circumferentially, so that the inner system is thermally insulated from the insulating sleeve, wherein the insulating sleeve is then coupled to the flange and with the outer system and thereby also a thermal Decoupling takes place.
  • FIG. 1 shows an exhaust manifold 1 which is coupled to a part of a turbocharger housing 2.
  • a turbocharger 2 is also known with the associated exhaust manifold 1 as an integral charger.
  • the exhaust manifold 1 itself has flanges 3, with which it can be coupled with a cylinder head, not shown.
  • a respective flange 3 in turn has a in FIG. 2 illustrated opening 10, which is penetrated by an insulating sleeve 4 according to the invention here, wherein the insulating sleeve 4 is formed over the flange 3 in the direction of the cylinder head not shown protruding.
  • the exhaust manifold 1 in turn has a multi-shell outer system 5, in which a in FIGS. 1a and b not shown in detail interior system is arranged.
  • FIG. 2 shows a cross-sectional view through the exhaust manifold 1 according to the invention, wherein it can be seen that the outer system 5 is composed of a first shell 5a and a second shell 5b thus coarseschalig.
  • an inner system 6 is arranged, through which an exhaust gas stream A flows.
  • the insulating sleeve 4 and the inner system 6 project beyond the flange 3 on a cylinder head side 7 and protrude into a cylinder head Z.
  • the insulating sleeve 4 comprises a cylinder head end 8 of the inner system 6 radially outwardly circumferentially, in particular with a press fit.
  • a gap 9 is formed between the inner system 6 and the insulating sleeve 4, which thermally decouples the protruding inner system 6 from the insulating sleeve 4.
  • the insulating sleeve 4 is further in an opening 10 of the flange. 3 arranged and here in particular also in turn with a press fit.
  • FIG. 3 shows a detailed view.
  • the insulating sleeve 4 has three stepped heels 13, as shown here in relation to its longitudinal direction 12, wherein, in particular, the respective stepped heels 13, in conjunction with the outer system 5 or with the flange 3, leave a space which serves as a solder deposit 14 in which a solder additive can initially be positioned is and then then melts in a soldering process.
  • a solder deposit 14 in which a solder additive can initially be positioned is and then then melts in a soldering process.
  • the gap 9 between the inner system 6 and insulating sleeve 4 is either air or between the outer system 5 and inner system 6 due to the operating state of the internal combustion engine gas present or even an insulating material, such as a fiber mat, arranged.
  • solder deposit 14 may be provided to couple the inner system 6 with insulation sleeve 4 by lot technology.
  • it is further provided to form a respective press fit 15 at the end of the insulation sleeve 4 with the opening 10 of the flange 3 and / or also the insulation sleeve 4 with the outer system 5.

Landscapes

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

Claims (6)

  1. Collecteur de gaz d'échappement (1) pour un moteur à combustion interne au niveau d'un véhicule automobile, dans lequel le collecteur de gaz d'échappement (1) est réalisé en deux coques à partir d'un système extérieur (5) et d'un système intérieur (6), dans lequel un flasque (3) est prévu côté culasse, lequel peut être couplé au moteur à combustion interne, caractérisé en ce qu'est prévue une douille d'isolation (4) réalisée sous la forme d'un composant façonné en tôle, laquelle couple le système intérieur (6) au flasque (3) et au système extérieur (5), dans lequel la douille d'isolation (4) traverse une ouverture (10) du flasque (3) et dépasse dans la culasse (Z) du moteur à combustion interne en surmontant le flasque (3) et un entrefer (9) périphérique est réalisé entre la douille d'isolation (4) et le système intérieur (6).
  2. Collecteur de gaz d'échappement selon la revendication 1, caractérisé en ce que la douille d'isolation (4) entoure côté périphérie le système intérieur (6), qui est réalisé sous la forme d'une tubulure dépassant dans le flasque (3), en particulier avec un ajustement à serrage (15).
  3. Collecteur de gaz d'échappement selon la revendication 1 ou 2, caractérisé en ce que le système extérieur (5) est réalisé bord à bord contre le flasque (3) côté extérieur par un côté frontal et la douille d'isolation (4) est réalisée de manière à venir en appui par complémentarité de forme avec une surface enveloppante intérieure de l'ouverture (10) du flasque (3), en particulier avec un ajustement à serrage (15).
  4. Collecteur de gaz d'échappement selon l'une quelconque des revendications précédentes, caractérisé en ce que la douille d'isolation (4) est couplée par liaison de matière au système extérieur (5) et au système intérieur (6) et au flasque (3), en particulier par un procédé de brasage.
  5. Collecteur de gaz d'échappement selon l'une quelconque des revendications précédentes, caractérisé en ce que la douille d'isolation (4) est réalisée sous la forme d'un composant d'emboutissage.
  6. Collecteur de gaz d'échappement selon l'une quelconque des revendications précédentes, caractérisé en ce que la douille d'isolation (4) présente, sur son axe longitudinal médian, par rapport à la direction axiale, au moins un palier (13), en particulier deux paliers (13), dans lequel le palier (13) fait office d'appui à complémentarité de forme et/ou de dépôt de brasure (14).
EP14166302.1A 2013-08-30 2014-04-29 Collecteur de gaz d'échappement doté de manchon d'isolation Not-in-force EP2843207B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013109446.5A DE102013109446B4 (de) 2013-08-30 2013-08-30 Abgaskrümmer mit Isolationshülse

Publications (2)

Publication Number Publication Date
EP2843207A1 EP2843207A1 (fr) 2015-03-04
EP2843207B1 true EP2843207B1 (fr) 2016-12-14

Family

ID=50588568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14166302.1A Not-in-force EP2843207B1 (fr) 2013-08-30 2014-04-29 Collecteur de gaz d'échappement doté de manchon d'isolation

Country Status (5)

Country Link
US (1) US9416719B2 (fr)
EP (1) EP2843207B1 (fr)
CN (1) CN104420966B (fr)
DE (1) DE102013109446B4 (fr)
ES (1) ES2611916T3 (fr)

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
DE102014103314B4 (de) * 2014-03-12 2018-07-12 Tenneco Gmbh Abgasrohrflansch, Gruppenflansch und Abgasanlage
US10544703B2 (en) 2017-01-30 2020-01-28 Garrett Transportation I Inc. Sheet metal turbine housing with cast core
FR3084109B1 (fr) * 2018-07-23 2022-08-19 Renault Sas Dispositif d’isolation thermique a l’echappement de moteur thermique
EP3708798A1 (fr) * 2019-03-13 2020-09-16 GF Casting Solutions AG Collecteur de gaz d'échappement isolé par une fente d'air
US11194831B2 (en) * 2019-12-16 2021-12-07 Informatica Llc Systems, apparatus, and methods for data integration optimization
US11732729B2 (en) 2021-01-26 2023-08-22 Garrett Transportation I Inc Sheet metal turbine housing

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Also Published As

Publication number Publication date
CN104420966A (zh) 2015-03-18
US20150059324A1 (en) 2015-03-05
EP2843207A1 (fr) 2015-03-04
ES2611916T3 (es) 2017-05-11
DE102013109446A1 (de) 2015-03-05
US9416719B2 (en) 2016-08-16
CN104420966B (zh) 2017-04-12
DE102013109446B4 (de) 2015-11-26

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