EP2075431B2 - Collecteur de gaz d'échappement - Google Patents

Collecteur de gaz d'échappement Download PDF

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Publication number
EP2075431B2
EP2075431B2 EP08171417.2A EP08171417A EP2075431B2 EP 2075431 B2 EP2075431 B2 EP 2075431B2 EP 08171417 A EP08171417 A EP 08171417A EP 2075431 B2 EP2075431 B2 EP 2075431B2
Authority
EP
European Patent Office
Prior art keywords
flange
exhaust manifold
cylinder head
reinforcing plate
installed state
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.)
Active
Application number
EP08171417.2A
Other languages
German (de)
English (en)
Other versions
EP2075431A1 (fr
EP2075431B1 (fr
Inventor
Ralf Riekers
Michael Weiss
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.)
Eberspaecher Exhaust Technology GmbH and Co KG
Original Assignee
Eberspaecher Exhaust Technology GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40470015&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2075431(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Eberspaecher Exhaust Technology GmbH and Co KG filed Critical Eberspaecher Exhaust Technology GmbH and Co KG
Publication of EP2075431A1 publication Critical patent/EP2075431A1/fr
Application granted granted Critical
Publication of EP2075431B1 publication Critical patent/EP2075431B1/fr
Publication of EP2075431B2 publication Critical patent/EP2075431B2/fr
Active 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
    • F01N13/08—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
    • 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
    • F01N13/107—More than one exhaust manifold or exhaust collector
    • 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
    • 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
    • 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 present invention relates to an exhaust manifold for an internal combustion engine, in particular in a motor vehicle, having the features of the preamble of claim 1.
  • Such an exhaust manifold which in principle can also be referred to as an exhaust manifold, is known for example from EP 1 291 500 A2 and comprises a housing from which depart a plurality of inlet pipes, which lead to cylinders of the internal combustion engine in the installed state, and a flange which with the inlet pipes is welded and screwed in the installed state with screws to a cylinder head of the internal combustion engine.
  • the known exhaust manifold is designed as an air gap insulated exhaust manifold, the housing is formed together with the inlet pipes by an inner shell and an outer shell, which are both welded to the flange and between which a thermally insulating air gap is formed.
  • the exhaust manifold During operation of an internal combustion engine, the exhaust manifold often reaches significantly higher temperatures than the cylinder head. This leads to different thermal expansions, which is mainly in a longitudinal direction of the exhaust manifold clearly noticeable, especially in in-line engines with four or more cylinders.
  • the present invention is concerned with the problem of providing for an exhaust manifold of the type mentioned an improved embodiment, which is particularly characterized in that during operation of the internal combustion engine, a sufficient sealing effect can be realized, while at the same time a longer life for the exhaust manifold is to be achieved.
  • the invention is based on the general idea of dividing the flange in a longitudinal direction of the exhaust manifold.
  • the "longitudinal direction" of the exhaust manifold is the direction in which the inlet pipes are arranged alongside or behind one another.
  • the longitudinal division of the flange creates two partial flanges, which can change their length thermally independently. As a result, the longitudinal expansion of the individual partial flange is reduced in terms of their absolute size. In conjunction with a screw that allows sliding in the flange plane, the thermal load of the housing can be reduced accordingly.
  • the respective division of the flange is realized by a gap which extends transversely to the longitudinal direction and which provides in the longitudinal direction a predetermined gap width between adjacent partial flanges at ambient temperature, which can decrease correspondingly with increasing temperature.
  • At least one reinforcing plate is provided, which rests flat on the flange on a side facing the housing, which bridges at least one gap formed between two adjacent partial flanges by the partition and which is screwed in the installed state with the screws to the cylinder head, in such a way that the flange between each Reinforcing plate and the cylinder head is arranged.
  • the respective reinforcing plate for each inlet pipe to a separate passage opening which is penetrated by the respective inlet pipe.
  • FIG. 1 an exhaust manifold 1 a housing 2 and a flange 3.
  • the housing 2 includes a plurality of inlet pipes 4, which emanate from the housing 2 and of a housing 2 formed in the collecting space.
  • the inlet pipes 4 lead to cylinders, not shown, of an internal combustion engine 5, which is only partially shown.
  • the internal combustion engine 5 is a six-cylinder Erasmusnmotor.
  • the inlet pipes 4 are in a direction behind each other or arranged side by side. This direction defines the longitudinal direction of the exhaust manifold 1, which is indicated by a double arrow and denoted by 6. It is clear that the number of inlet pipes 4 reproduced here is to be understood as purely exemplary, so that more or fewer inlet pipes 4 can also be present.
  • the housing 2 also has at least one outlet pipe 7, with which the exhaust manifold 1 is connected in the installed state to an exhaust system of an internal combustion engine 5, wherein the internal combustion engine 5 can be arranged in particular in a motor vehicle.
  • the flange 3 is welded to the inlet pipes 4 and is screwed in the installed state shown with a cylinder head 8 of the internal combustion engine 5.
  • the screw 9 used here can consist of a plurality of individual screws 10, of which only the screw heads are visible here. Likewise, the screw 9 may be formed by a plurality of threaded bolts 11, are placed on the nuts.
  • the exhaust manifold 1 can be advantageously designed as an air gap insulated exhaust manifold 1.
  • the housing 2 is then formed together with the inlet pipes 4 by an outer shell 12 and an inner shell 13 arranged therein.
  • the inner shell 13 is led out in the region of the inlet pipes 4 from the outer shell 12 and according to Fig. 2 welded at 14 to the outer shell 12.
  • the flange 3 is in this case welded at 15 only with the inner shell 13.
  • it may be provided to guide the outer shell 12 as far as the flange 3 and, in addition, to weld the outer shell 12 to the flange 3 as well.
  • the flange 3 is divided in the elbow longitudinal direction 6 into at least two partial flanges 3 '.
  • This longitudinal division of the flange 3 is realized by forming a gap 16 in which the respective partial flanges 3 'are spaced from each other in the longitudinal direction 6.
  • the gap 16 extends in the example shown in a straight line, and that transverse to the longitudinal direction 6.
  • the present at cold exhaust manifold 1 gap width of the gap 16 is tuned to the expected longitudinal expansion of adjacent to the gap 16 arranged partial flanges 3 ', which decreases with increasing temperature the gap width causes.
  • the gap 16 is arranged approximately in the middle of the flange 3 with respect to the longitudinal direction of the elbow 6, so that the flange 3 is divided approximately centrally.
  • the exhaust manifold 1 also has at least one reinforcing plate 17, which rests flat against the flange 3 at least in the installed state on a side facing the housing 2.
  • the reinforcing plate 17 is shaped so that it bridges the gap 16 or at least one gap 16.
  • the respective reinforcing plate 17 is screwed by means of the screw 9 to the cylinder head 8, that it presses the flange 3 against the cylinder head 8.
  • the flange 3 is disposed between the respective reinforcing plate 17 and the cylinder head 8.
  • the determination of the flange 3 on the cylinder head 8 by means of the screw 9 is thus not directly, but indirectly via the respective reinforcing plate 17.
  • reinforcing plate 17 In the example shown, only a single reinforcing plate 17 is provided. Basically, in other embodiments, two or more reinforcing plates 17 may be provided, which can be arranged one above the other in the screwing direction, which runs perpendicular to the flange plane.
  • the reinforcing plate 17 has for each inlet pipe 4 a separate passage opening 18, which is penetrated by the respective inlet pipe 4.
  • the respective reinforcing plate 17 is expediently attached to the housing 2 before the welding of the flange 3.
  • the reinforcing plate 17 covers the entire flange 3 here from undivided.
  • the reinforcing plate 17 is formed congruent to the flange 3 with respect to the screwing direction.
  • the reinforcing plate 17 thus extends over the entire length and / or over the entire width of the flange 3.
  • the reinforcing plate 17 for the screw 9 has the same hole pattern with the same or different through holes as the flange. 3
  • the flange 3 abuts the cylinder head 8 in a flange plane.
  • the contouring of flange 3 and cylinder head 8 in this flange plane can in principle be designed so that each partial flange 3 'in the installed state basically abuts slidably on the cylinder head 8 in the longitudinal direction 6.
  • the partial flanges 3 ' are freely displaceable relative to the cylinder head 8.
  • the thermal expansion effects can force the displacement, ie a sliding of the respective sub-flange 3 'in the flange plane relative to the cylinder head eighth
  • the respective partial flange 3 ' can in a particular embodiment in the installed state with respect to the Krümmerlnaturescardi 6 approximately centrally fixed by an effective at least in the Krümmerlnaturescardi 6 positive connection to the cylinder head 8.
  • This positive connection causes the respective partial flange 3 ', starting from the position of the positive connection, to extend in opposite directions parallel to the longitudinal direction of the elbow 6, whereby the relative displacement between the respective partial flange 3' and the cylinder head 8 in the region of the longitudinal ends of the respective partial flange 3 'is reduced.
  • Such a positive connection can be achieved, for example, with a tongue and groove configuration.
  • the screw heads or nuts of the screw connection 9 are supported on the respective reinforcing plate 17 and not on the partial flanges 3 ', the screw heads or nuts can not dig into the flange 3, whereby the displaceability between the respective partial flange 3' and the cylinder head 8 is improved is relieved.
  • the thermally induced strains can be distributed well to the structure of the exhaust manifold 1, ie on the flange 3 and the housing 2, without this, the seal between the inlet pipes 4 and the cylinders is greatly impaired ,
  • the at least one reinforcing plate 17 effects a stabilization or stiffening of the flange 3, which counteracts buckling or wave formation in the flange 3.
  • the sealing effect between the flange 3 and the cylinder head 8 can be improved.
  • the reinforcing plate 17 causes a certain thermal insulation of the flange 3 relative to the housing 2.
  • the reinforcing plate 17 protects the flange 3 from direct radiant heat of the housing second

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Claims (6)

  1. Collecteur d'échappement isolé par une fente d'aération pour un moteur à combustion interne (5), notamment dans un véhicule automobile,
    - comportant un boîtier (2), duquel partent plusieurs tuyaux d'entrée (4), qui aboutissent dans l'état de montage à des cylindres du moteur à combustion interne (5),
    - comportant une bride (3), qui est soudée aux tuyaux d'entrée (4) et qui est vissée dans l'état de montage avec un assemblage vissé (9) sur une tête de cylindre (8) du moteur à combustion interne (5),
    - dans lequel la bride (3) est subdivisée dans une direction longitudinale (6) du collecteur d'échappement (1) en au moins deux brides partielles (3'),
    caractérisé en ce
    - qu'au moins une tôle de renfort (17) est prévue, qui vient reposer à plat sur la bride (3) sur un côté tourné vers le boîtier (2), laquelle tôle surmonte au moins une fente (16) formée entre deux brides partielles voisines (3') par la subdivision et qui est vissée sur la tête de cylindre (8) dans l'état de montage avec l'assemblage vissé (9), de telle sorte que la bride (3) soit disposée entre la tôle de renforcement respective (17) et la tête de cylindre (8),
    - que la tôle de renforcement respective (17) recouvre sans subdivision la totalité de la bride (3),
    - que la tôle de renforcement respective (17) pour chaque tuyau d'entrée (4) présente une ouverture traversante séparée (18), qui est traversée par le tuyau d'entrée respectif (4).
  2. Collecteur d'échappement selon la revendication 1,
    caractérisé en ce
    que dans l'état de montage, les têtes de vis ou les écrous de l'assemblage vissé (9) s'appuient au moyen de la tôle de renforcement respective (17) sur la bride (3).
  3. Collecteur d'échappement selon une des revendications 1 à 2,
    caractérisé en ce
    que la bride (3) est divisée à peu près au milieu.
  4. Collecteur d'échappement selon une des revendications 1 à 3,
    caractérisé en ce
    que chaque bride partielle (3') est fixée dans l'état de montage par rapport à la direction longitudinale (6) du collecteur d'échappement (1) à peu près au centre par une complémentarité de formes efficace au moins dans le sens de la longueur (6) du collecteur d'échappement (1) sur la tête de cylindre (8).
  5. Collecteur d'échappement selon une des revendications 1 à 3,
    caractérisé en ce
    que chaque bride partielle (3') dans l'état de montage vient reposer de manière coulissante sur la tête de cylindre (8) dans la direction longitudinale (6) du collecteur d'échappement (1).
  6. Collecteur d'échappement selon une des revendications précédentes,
    caractérisé en ce
    que le boîtier (2) est formé avec les tuyaux d'entrée (4) par une coque interne (13) et une coque externe (12), dont au moins l'une est soudée à la bride (3).
EP08171417.2A 2007-12-24 2008-12-12 Collecteur de gaz d'échappement Active EP2075431B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007062660A DE102007062660A1 (de) 2007-12-24 2007-12-24 Abgaskrümmer

Publications (3)

Publication Number Publication Date
EP2075431A1 EP2075431A1 (fr) 2009-07-01
EP2075431B1 EP2075431B1 (fr) 2010-07-28
EP2075431B2 true EP2075431B2 (fr) 2015-03-18

Family

ID=40470015

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08171417.2A Active EP2075431B2 (fr) 2007-12-24 2008-12-12 Collecteur de gaz d'échappement

Country Status (6)

Country Link
US (2) US8230680B2 (fr)
EP (1) EP2075431B2 (fr)
JP (1) JP5544084B2 (fr)
CN (1) CN101469630B (fr)
AT (1) ATE475795T1 (fr)
DE (2) DE102007062660A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007062660A1 (de) 2007-12-24 2009-06-25 J. Eberspächer GmbH & Co. KG Abgaskrümmer
JP5031708B2 (ja) * 2008-09-29 2012-09-26 アイシン高丘株式会社 排気マニホールドの締結構造
SE535922C2 (sv) * 2009-03-26 2013-02-19 Komatsu Mfg Co Ltd Fästanordning för en avgasreningsanordning för förbränningsmotor
US8763383B2 (en) * 2010-11-17 2014-07-01 Evolution Motorsports Exhaust flow divider
US8795013B1 (en) * 2011-04-07 2014-08-05 Yamaha Hatsudoki Kabushiki Kaisha Outboard motor
JP5890257B2 (ja) * 2012-06-06 2016-03-22 フタバ産業株式会社 排気系部品
WO2014000866A1 (fr) * 2012-06-26 2014-01-03 Deutz Aktiengesellschaft Moteur à combustion interne muni d'une douille d'écartement à centrage central
US9687784B2 (en) 2014-04-08 2017-06-27 Tenneco Automotive Operating Company Inc. Exhaust system having segmented service flange

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4226171A1 (de) † 1992-08-07 1994-02-10 Bischoff Erhardt Gmbh Co Kg Abgaskrümmer
EP0918148A2 (fr) † 1997-11-26 1999-05-26 HEINRICH GILLET GMBH & CO. KG Bride de collecteur d'échappement
US20020174650A1 (en) † 2001-05-23 2002-11-28 Gerd Durr Exhaust manifold

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DE3434288A1 (de) * 1984-09-19 1986-03-20 Erhardt Bischoff GmbH & Co KG Fabrik für Kraftfahrzeugteile, 7067 Plüderhausen Auspuffkruemmer
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JP2006162059A (ja) * 2004-11-12 2006-06-22 Shimizu Corp 鉛ダンパー
DE102005025735B3 (de) 2005-06-04 2006-09-07 Daimlerchrysler Ag Schweißverbund
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DE102007062660A1 (de) 2007-12-24 2009-06-25 J. Eberspächer GmbH & Co. KG Abgaskrümmer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4226171A1 (de) † 1992-08-07 1994-02-10 Bischoff Erhardt Gmbh Co Kg Abgaskrümmer
EP0918148A2 (fr) † 1997-11-26 1999-05-26 HEINRICH GILLET GMBH & CO. KG Bride de collecteur d'échappement
US20020174650A1 (en) † 2001-05-23 2002-11-28 Gerd Durr Exhaust manifold
DE10125121A1 (de) † 2001-05-23 2002-11-28 Daimler Chrysler Ag Abgaskrümmer

Also Published As

Publication number Publication date
US20090158723A1 (en) 2009-06-25
DE102007062660A1 (de) 2009-06-25
US20120266588A1 (en) 2012-10-25
CN101469630B (zh) 2012-05-23
JP2009150395A (ja) 2009-07-09
JP5544084B2 (ja) 2014-07-09
US8230680B2 (en) 2012-07-31
EP2075431A1 (fr) 2009-07-01
ATE475795T1 (de) 2010-08-15
DE502008001025D1 (de) 2010-09-09
US8850805B2 (en) 2014-10-07
CN101469630A (zh) 2009-07-01
EP2075431B1 (fr) 2010-07-28

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