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EP0955453A2 - Collecteur d'échappement - Google Patents

Collecteur d'échappement Download PDF

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Publication number
EP0955453A2
EP0955453A2 EP99108095A EP99108095A EP0955453A2 EP 0955453 A2 EP0955453 A2 EP 0955453A2 EP 99108095 A EP99108095 A EP 99108095A EP 99108095 A EP99108095 A EP 99108095A EP 0955453 A2 EP0955453 A2 EP 0955453A2
Authority
EP
European Patent Office
Prior art keywords
gas
exhaust manifold
deflecting element
pipes
exhaust
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Withdrawn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
EP99108095A
Other languages
German (de)
English (en)
Other versions
EP0955453A3 (fr
Inventor
Rainer Diez
Friedrich Dipl.-Ing. Hartmann
Frank Dipl.-Ing. Bühler
Roland Dr.-Ing. Ries
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.)
Friedrich Boysen GmbH and Co KG
Original Assignee
Friedrich Boysen 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
Application filed by Friedrich Boysen GmbH and Co KG filed Critical Friedrich Boysen GmbH and Co KG
Publication of EP0955453A2 publication Critical patent/EP0955453A2/fr
Publication of EP0955453A3 publication Critical patent/EP0955453A3/fr
Withdrawn legal-status Critical Current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
    • F01N13/08—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
    • F01N13/14—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
    • F01N13/141—Double-walled exhaust pipes or housings
    • F01N13/143—Double-walled exhaust pipes or housings with air filling the space between both walls
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector

Definitions

  • the present invention relates to an exhaust manifold, in particular for turbocharged internal combustion engines, with a plurality of exhaust pipes which run between a first flange on the engine side and a second flange on the gas outlet side and have a strong curvature in the region of the second flange, in particular in the region of approximately 90 °.
  • Exhaust manifolds made of cast material have a considerably higher weight than exhaust manifolds made of sheet steel, since the wall thickness is comparatively large compared to these.
  • the invention has for its object to provide an exhaust manifold of the type mentioned, which does not have these disadvantages.
  • an exhaust manifold is to be specified which, despite its low weight, enables very small radii of curvature and can therefore be used for turbo engines.
  • the exhaust pipes comprise pipes made of sheet metal, in particular sheet steel, and at least one gas deflecting element made of cast or forged metal, in particular steel, arranged in the region of the second flange, in particular steel, with exhaust gas passages, the pipes having one end are connected to the first flange and with their other end to the gas deflecting element.
  • the idea of the invention is therefore to construct the exhaust manifold from two different materials, namely firstly from weight-saving pipes made from sheet metal and secondly from a gas deflecting element made from cast metal. Cast metal is therefore only used for the area of the exhaust manifold in which the strong curvature of the exhaust pipes is required, ie in the vicinity of the flange on the gas outlet side.
  • the overall weight of the exhaust manifold can be reduced by this configuration of the exhaust manifold according to the invention.
  • the manufacturing costs are increased compared to a cast manifold.
  • weight reduction especially in the engine area, is very important, so that the cost increase seems justifiable.
  • the increase in costs can be at least partially offset by the weight advantages.
  • the configuration according to the invention gives the possibility of making the exhaust manifold so flat that the exhaust manifold can be arranged in front of its outlet openings without protruding beyond the cylinder flange. Even straight access to all cylinder flange screw connections can be kept free.
  • the gas-carrying pipes have a very low mass and can also be provided with a heat-insulating outer shell. As a result, the catalytic converter heats up faster and reaches its effectiveness earlier.
  • the gas deflecting element is made of investment casting, in particular with a wall thickness of approximately 2 mm.
  • the weight of the exhaust manifold according to the invention can thus advantageously be reduced further.
  • a common gas deflecting element is provided for all pipes. This simplifies the design and manufacture of the exhaust manifold, thereby reducing costs.
  • the gas deflection element preferably has star-shaped outward-facing connection openings for the pipes and an outlet opening which is approximately perpendicularly downward and is connected to the gas inlet openings via the exhaust gas channels. This results in an optimal connection possibility for the pipes coming from the cylinder flange and the turbocharger in the immediate vicinity of the cylinder flange.
  • the outlet side of the gas deflecting element forms the second flange.
  • the gas deflecting element receives thereby a third function in addition to the redirection and collection function. This is space and cost saving.
  • the gas deflection element has means for fastening a turbocharger, in particular bushings for fastening bolts. This gives the gas deflection element another function, and the turbocharger can also be attached to the exhaust manifold in a space-saving and cost-saving manner.
  • the tubes are each connected directly to the gas deflecting element, that is to say run independently of one another. This makes the pipes easy to manufacture. In addition, thermal expansion can be better distributed.
  • the mutually independent pipes also have the advantage that they only have to carry themselves, which is important because of the relatively low carrying properties of hot sheet metal pipes.
  • the tubes with a sliding seat are connected to the gas deflecting element. This further improves the behavior of the pipes under thermal expansion.
  • the tubes are manufactured using a hydrostatic forming process.
  • This process enables the pipes to be produced with any curvature and high dimensional accuracy.
  • the deflection element can also be manufactured as an investment casting with a high degree of dimensional accuracy, there is a high overall dimensional accuracy of the exhaust pipes. This is particularly true in the area of the sliding seat between the pipes and the gas deflecting element important to obtain maximum tightness at this point. The entry of impurities, which could damage the turbocharger, is largely prevented, since no support elements are required.
  • the tubes are each surrounded by a cladding tube made of metal, in particular sheet steel, with the formation of an air gap.
  • This air gap insulation advantageously reduces the outside temperature of the exhaust manifold, in particular also compared to exhaust manifolds made entirely of cast iron. As a result, less expensive thermal insulation of adjacent components is required, which results in cost savings at this point, which at least partially offset the increased manufacturing costs of the exhaust manifold according to the invention.
  • the cladding tubes are part of a common, in particular double-shell housing, which at the same time receives the gas deflecting element.
  • the exhaust manifold becomes very compact overall and consists of relatively few individual elements.
  • the gas deflection element is also air-gap insulated and thus thermally decoupled. This also makes additional seals unnecessary.
  • the pipes and the gas deflecting element are matched to one another with regard to their thermal expansion properties. This ensures that the high accuracy of fit of all parts is maintained even during operation. The gas leak in the air gap and thus the heat radiation to the outside remain small.
  • the exhaust manifold shown in Fig. 1 comprises an engine-side flange 1 with four exhaust gas passage openings 2 and a plurality of bushings 3 for fastening screws for attaching the exhaust manifold to an engine.
  • An exhaust pipe 4 made of sheet steel is connected to the exhaust gas passage openings 2 and welded to the engine-side flange 1.
  • the outlet openings 5 of the exhaust pipes 4 open into a gas deflection element 6, not shown in FIG. 1, the design of which can be seen in FIGS. 2 and 3.
  • the exhaust pipes 4 and the gas deflection element 6 are surrounded by a two-part, common housing 7 with the formation of an air gap 8, which is welded gas-tight to the motor-side flange 1.
  • the housing 7, which surrounds the pipes 4 and the gas deflecting element 6, can also be designed such that it can be welded to the motor-side flange 1 with a circumferential welding line.
  • the gas deflecting element 6 shown in FIGS. 2 and 3 consists of precision cast steel, but can also be produced as a forged part, then preferably in two parts. In the present example, it has four inlet openings 9 for the gas outlet-side ends of the exhaust gas pipes 4, which point outwards in a star shape, this plane coinciding with the plane into which the gas passage openings 2 point.
  • the gas inlet openings 9 of the gas deflecting element 6 are connected via exhaust channels 14 to a gas outlet opening 10 which points in a direction at least approximately perpendicular to the gas inlet direction.
  • the area of the gas outlet opening 10 of the gas deflecting element 6 is designed as a connecting flange 11 for connecting a turbocharger.
  • the deflection wall 12 is pulled down into the area of the outlet opening 10 so that there is no direct connection between the gas inlet openings 9.
  • an air gap 8 is also present between the gas deflecting element 6 and the housing 7.
  • Fig. 2 shows that the gas deflection element 6 also has bushings 13 for fastening bolts through which a turbocharger can be fastened to the exhaust manifold.
  • the gas inlet openings 9 of the gas deflecting element are laterally offset from these passages 13, and the gas flows run around these recesses 13.
  • the exhaust manifold according to the invention is characterized by a very compact, space-saving design.
  • the exhaust manifold is very flat and runs practically in a plane immediately in front of the gas passage openings 2 of the engine-side flange 1.
  • the exhaust manifold can be designed so flat that straight access to the bushings 3 remains free for the flange attachment.
  • the total weight of the exhaust manifold is significantly reduced compared to exhaust manifolds made entirely of cast iron. A weight reduction of 40% can be achieved. Due to the air gap-insulated design of the exhaust manifold with a common housing 7 around the pipes 4 and the deflection element 6, the heat radiation is also significantly lower than in conventional cast metal exhaust manifolds. This can save costs in the thermal insulation of surrounding components.
  • the use of investment casting for the gas deflecting element 6 and a hydrostatic forming process for the tubes 4 ensures a high degree of dimensional accuracy, in particular in the region of the sliding fit of the tubes 4 in the gas inlet openings 9 of the gas deflecting element 6. A gas leakage into the air gap 8 is thereby largely prevented, so that the heating of the exhaust manifold is kept low.
  • the exhaust pipes 4 are each guided separately and welded at one end to the engine-side flange 1. You only have to carry yourself.
  • the gas deflecting element 6, on the other hand is like the one connected to it Exhaust gas turbocharger carried by the housing 7, which is also welded to the engine-side flange 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Supercharger (AREA)
EP99108095A 1998-05-05 1999-04-23 Collecteur d'échappement Withdrawn EP0955453A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998119946 DE19819946A1 (de) 1998-05-05 1998-05-05 Abgaskrümmer
DE19819946 1998-05-05

Publications (2)

Publication Number Publication Date
EP0955453A2 true EP0955453A2 (fr) 1999-11-10
EP0955453A3 EP0955453A3 (fr) 2003-05-21

Family

ID=7866673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99108095A Withdrawn EP0955453A3 (fr) 1998-05-05 1999-04-23 Collecteur d'échappement

Country Status (2)

Country Link
EP (1) EP0955453A3 (fr)
DE (1) DE19819946A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10112707C1 (de) * 2001-03-16 2002-06-06 Zeuna Staerker Kg Verfahren zur Herstellung eines Abgaskrümmers sowie nach diesem Verfahren hergestellter Abgaskrümmer
EP1225314A3 (fr) * 2001-01-20 2003-09-24 Bayerische Motoren Werke Aktiengesellschaft Collecteur d'échappement pour évacuation des gaz de fumée d'un moteur à combustion interne
EP1359294A1 (fr) * 2002-04-30 2003-11-05 Zeuna-Stärker Gmbh & Co Kg Jonction des gaz d'échappement à double paroi et à isolation d'air et procédé de production
EP1367234A1 (fr) * 2002-05-28 2003-12-03 Benteler Automobiltechnik GmbH Conduit de gaz d'échappement à paroi double avec une bride
US6688103B2 (en) 2001-06-21 2004-02-10 Dr. Ing. H.C.F. Porsche Ag Apparatus for fastening an exhaust gas turbocharger on an exhaust chamber of a combustion engine
FR2849469A1 (fr) * 2002-12-27 2004-07-02 Renault Sa Collecteur d'echappement de vehicule automobile comportant des conduits non-porteurs
FR2863306A1 (fr) * 2003-12-04 2005-06-10 Renault Sas Collecteur d'echappement equipe d'un deflecteur rapporte et moteur comportant ce collecteur
DE10346552A1 (de) * 2003-10-07 2005-06-30 Friedrich Boysen Gmbh & Co. Kg Luftspaltkrümmer
EP1691049A1 (fr) * 2005-01-18 2006-08-16 Bayerische Motorenwerke Aktiengesellschaft Collecteur d'échappement à double paroi
EP1734235A1 (fr) * 2005-06-13 2006-12-20 Wescast Industries, Inc. Éléments d'échappement comprenant un assemblage de plaque de séparation pour haute température
EP1985820A1 (fr) * 2006-02-17 2008-10-29 Hitachi Metals, Ltd. Tubulure d'echappement en acier coule resistant a la chaleur
US20100005798A1 (en) * 2008-07-08 2010-01-14 J. Eberspaecher Gmbh & Co. Kg Exhaust System
FR2947301A1 (fr) * 2009-06-26 2010-12-31 Inst Francais Du Petrole Collecteur de gaz d'echappement pour moteur a combustion interne suralimente
EP2921669A1 (fr) * 2014-03-20 2015-09-23 Benteler Automobiltechnik GmbH Collecteur de gaz d'échappement pour une installation de gaz d'échappement d'un moteur à combustion interne

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19957979B4 (de) * 1999-12-02 2006-08-10 Audi Ag Abgaskrümmer
DE10144015A1 (de) * 2001-09-07 2003-03-27 Bayerische Motoren Werke Ag Abgasanlage für mehrzylindrige Verbrennungsmotoren
DE10218103A1 (de) † 2002-04-23 2003-11-20 Boysen Friedrich Gmbh Co Kg Abgaskrümmer für einen Verbrennungsmotor und Verfahren zur Herstellung eines solchen Abgaskrümmers
DE20303759U1 (de) 2003-03-10 2004-07-22 Friedrich Boysen Gmbh & Co. Kg Abgasanlage einer Brennkraftmaschine
DE102004009109A1 (de) 2004-02-25 2005-09-15 Borgwarner Turbo Systems Gmbh Verfahren zum Verbinden eines Blechbauteils wie ein Rohr mit einem Gussmetallbauteil wie eine Öffnung eines Gehäuses, insbesondere für Abgasanlage
DE202006015883U1 (de) * 2006-10-17 2008-02-21 Friedrich Boysen Gmbh & Co. Kg Abgaskrümmer
DE102008050961B4 (de) * 2008-10-09 2017-10-26 Daimler Ag Abgaskrümmeranordnung
DE102015116018A1 (de) * 2015-09-22 2017-03-23 Tenneco Gmbh Krümmer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8213110U1 (de) * 1982-05-06 1982-09-02 Zeuna Stärker GmbH & Co KG, 8900 Augsburg Blechkruemmer fuer verbrennungsmotoren
JPS63170515A (ja) * 1987-01-09 1988-07-14 Honda Motor Co Ltd エンジンの排気マニホ−ルド
DE3925802A1 (de) * 1989-08-04 1991-02-07 Bayerische Motoren Werke Ag Abgaskruemmer
DE4305886C2 (de) * 1993-02-26 2002-08-01 Audi Ag Abgaskrümmer für Brennkraftmaschinen
DE4444760C2 (de) * 1994-12-16 2003-02-13 Eberspaecher J Gmbh & Co Luftspaltisolierter Abgaskrümmer
JPH09125948A (ja) * 1995-10-31 1997-05-13 Toshiomi Hayashi エンジンの排気系配管類の組立方法及び組立構造

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1225314A3 (fr) * 2001-01-20 2003-09-24 Bayerische Motoren Werke Aktiengesellschaft Collecteur d'échappement pour évacuation des gaz de fumée d'un moteur à combustion interne
DE10112707C1 (de) * 2001-03-16 2002-06-06 Zeuna Staerker Kg Verfahren zur Herstellung eines Abgaskrümmers sowie nach diesem Verfahren hergestellter Abgaskrümmer
US6688103B2 (en) 2001-06-21 2004-02-10 Dr. Ing. H.C.F. Porsche Ag Apparatus for fastening an exhaust gas turbocharger on an exhaust chamber of a combustion engine
EP1359294A1 (fr) * 2002-04-30 2003-11-05 Zeuna-Stärker Gmbh & Co Kg Jonction des gaz d'échappement à double paroi et à isolation d'air et procédé de production
EP1367234A1 (fr) * 2002-05-28 2003-12-03 Benteler Automobiltechnik GmbH Conduit de gaz d'échappement à paroi double avec une bride
FR2849469A1 (fr) * 2002-12-27 2004-07-02 Renault Sa Collecteur d'echappement de vehicule automobile comportant des conduits non-porteurs
DE10346552A1 (de) * 2003-10-07 2005-06-30 Friedrich Boysen Gmbh & Co. Kg Luftspaltkrümmer
FR2863306A1 (fr) * 2003-12-04 2005-06-10 Renault Sas Collecteur d'echappement equipe d'un deflecteur rapporte et moteur comportant ce collecteur
EP1691049A1 (fr) * 2005-01-18 2006-08-16 Bayerische Motorenwerke Aktiengesellschaft Collecteur d'échappement à double paroi
US7565800B2 (en) 2005-06-13 2009-07-28 Wescast Industries, Inc. Exhaust components including high temperature divider plate assemblies
EP1734235A1 (fr) * 2005-06-13 2006-12-20 Wescast Industries, Inc. Éléments d'échappement comprenant un assemblage de plaque de séparation pour haute température
EP1985820A1 (fr) * 2006-02-17 2008-10-29 Hitachi Metals, Ltd. Tubulure d'echappement en acier coule resistant a la chaleur
EP1985820A4 (fr) * 2006-02-17 2010-01-06 Hitachi Metals Ltd Tubulure d'echappement en acier coule resistant a la chaleur
US20100005798A1 (en) * 2008-07-08 2010-01-14 J. Eberspaecher Gmbh & Co. Kg Exhaust System
US8418459B2 (en) * 2008-07-08 2013-04-16 J. Eberspaecher Gmbh & Co. Kg Exhaust system
FR2947301A1 (fr) * 2009-06-26 2010-12-31 Inst Francais Du Petrole Collecteur de gaz d'echappement pour moteur a combustion interne suralimente
EP2921669A1 (fr) * 2014-03-20 2015-09-23 Benteler Automobiltechnik GmbH Collecteur de gaz d'échappement pour une installation de gaz d'échappement d'un moteur à combustion interne
CN104929747A (zh) * 2014-03-20 2015-09-23 本特勒尔汽车技术有限公司 用于内燃机的排气装置的排气弯管
DE102014103820A1 (de) * 2014-03-20 2015-09-24 Benteler Automobiltechnik Gmbh Abgaskrümmer für eine Abgasanlage eines Verbrennungsmotors
US9518501B2 (en) 2014-03-20 2016-12-13 Benteler Automobiltechnik Gmbh Exhaust manifold for exhaust system of a combustion engine
EP2921669B1 (fr) 2014-03-20 2016-12-21 Benteler Automobiltechnik GmbH Collecteur de gaz d'échappement pour une installation de gaz d'échappement d'un moteur à combustion interne
CN104929747B (zh) * 2014-03-20 2018-01-16 本特勒尔汽车技术有限公司 用于内燃机的排气装置的排气弯管

Also Published As

Publication number Publication date
EP0955453A3 (fr) 2003-05-21
DE19819946A1 (de) 1999-11-11

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