EP3052778B1 - Moteur à combustion interne et procédé permettant de monter un moteur à combustion interne - Google Patents

Moteur à combustion interne et procédé permettant de monter un moteur à combustion interne Download PDF

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Publication number
EP3052778B1
EP3052778B1 EP14761953.0A EP14761953A EP3052778B1 EP 3052778 B1 EP3052778 B1 EP 3052778B1 EP 14761953 A EP14761953 A EP 14761953A EP 3052778 B1 EP3052778 B1 EP 3052778B1
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EP
European Patent Office
Prior art keywords
exhaust manifold
exhaust
internal combustion
combustion engine
cylinder head
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
EP14761953.0A
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German (de)
English (en)
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EP3052778A1 (fr
Inventor
Andrej Lutz
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.)
Audi AG
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Audi 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 Audi AG filed Critical Audi AG
Publication of EP3052778A1 publication Critical patent/EP3052778A1/fr
Application granted granted Critical
Publication of EP3052778B1 publication Critical patent/EP3052778B1/fr
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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
    • F01N13/107—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
    • 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
    • F01N13/1855—Mechanical joints the connection being realised by using bolts, screws, rivets or the like

Definitions

  • the invention relates to an internal combustion engine having a plurality of cylinders arranged in a row and each having at least a first exhaust valve and at least a second exhaust valve, wherein the first exhaust valve and the second exhaust valve are fluidly connected to an exhaust manifold, the exhaust manifold comprising a first exhaust manifold and one of these having separate second exhaust manifold, which are fastened individually and independently of each other, and wherein the first exhaust manifold is fluidly connected to the first exhaust valve and the second exhaust manifold fluidly connected to the second exhaust valve.
  • the invention further relates to a method for mounting an internal combustion engine.
  • the exhaust manifold is fastened, for example, to a cylinder head of the internal combustion engine, which preferably has integrated flow channels, in particular an integrated exhaust manifold, via which the flow connection between the first exhaust valve and the exhaust manifold and the second exhaust valve and the exhaust manifold is made.
  • a clamping flange on the cylinder head.
  • an internal combustion engine with an exhaust gas turbocharger and at least two exhaust valves per cylinder known.
  • a first exhaust valve in each cylinder is connected to a first exhaust manifold, while a second exhaust valve in each cylinder is connected to a second exhaust manifold.
  • the two exhaust manifolds lead to at least one exhaust turbine in at least one turbo-compressor and the first exhaust valves are configured to open at all engine speeds while the second exhaust valves are configured to open only at higher engine speeds.
  • the first exhaust manifold has a smaller flow area than the second exhaust manifold.
  • the publication EP 0 653 583 A2 further describes an arrangement for connecting a flange with a counter element, wherein it is proposed to arrange at least one oblique surface running at an acute angle to the sealing surface both on the flange and on the engine block. The determination of the flange on the counter-element is then carried out by insertion in a direction parallel to the sealing surface, so that the two parts are fixed by wedging action to each other.
  • the internal combustion engine has at least one, at least two exhaust valves for cylinder head each having a cylinder, wherein exhaust gases are fed through the first exhaust valve to a first exhaust gas turbocharger and through the second exhaust valve to a second exhaust gas turbocharger. It is provided that the second exhaust valve is actuated in a time-delayed manner after the first exhaust valve.
  • first exhaust manifold and the second exhaust manifold are fastened together by means of a first support rail and a second support rail to a cylinder head of the internal combustion engine, wherein the first support rail alternately comprises a clamping region for the first exhaust manifold and an insertion region for the second exhaust manifold, wherein the clamping region is configured such that after fastening the first retaining rail to the cylinder head, the first exhaust manifold is already securely held thereto, and wherein the insertion region is configured such that the second exhaust manifold even after attaching the first retaining rail to the cylinder head in it can be introduced.
  • a plurality of first exhaust valves to the first exhaust manifold and / or a plurality of second exhaust valves to the second exhaust manifold fluidly connected Preferably, a plurality of first exhaust valves and / or a plurality of second exhaust valves are provided, wherein, for example, all first exhaust valves to the first exhaust manifold and / or all second exhaust valves are connected to the second exhaust manifold.
  • the first and / or all second exhaust valves are arranged in series.
  • the first exhaust manifold is fluidly connected only to the first exhaust valve or the first exhaust valves and the second exhaust manifold fluidly only to the second exhaust valve or the second exhaust valves.
  • the first exhaust manifold for each first exhaust valve, a first flange and the second exhaust manifold has a second connection flange for each second outlet valve, wherein the first connection flange has a first side wall and the second connection flange has a second side wall extending at least in regions parallel to the first side wall.
  • the first flange is the first exhaust manifold in connection, in particular flow connection, with the cylinders.
  • the first connection flange bears against the cylinder head of the internal combustion engine, with the flow connection in particular passing through the first connection flange.
  • the second exhaust manifold and the second connection flange or the corresponding flow connection to the second outlet valve is the same applies.
  • the cylinders are arranged in series and each have a first exhaust valve and a second exhaust valve, so that a total of a plurality of exhaust valves and a plurality of second exhaust valves are realized, replace after mounting the two exhaust manifold first connecting flanges and second connecting flanges, so are immediately adjacent to each other in front.
  • the side walls of the connecting flanges are intended to run parallel to each other at least partially, in particular completely.
  • the first side wall and the second side wall are at least partially, in particular completely, over the entire surface opposite each other.
  • the side wall is for example a wall to understand that adjacent to a bearing surface of the exhaust manifold, which is in direct contact with the cylinder head, in particular immediately adjacent, and is angled to this, so with her an angle greater than 0 ° and less than Includes 90 °.
  • the side wall is perpendicular to the support surface.
  • a further embodiment of the invention provides that the first connection flange and the second connection flange are at least partially trapezoidal.
  • the first side wall and the second side wall are arranged obliquely with respect to an imaginary straight line perpendicular to a longitudinal central axis of the internal combustion engine, so include an angle greater than 0 ° and smaller than 90 ° to this line.
  • Such a configuration is helpful, for example, in an assembly of the internal combustion engine, in particular if initially the first exhaust manifold is mounted and the first connecting flanges widen in a trapezoidal manner in the mounting direction of the second connecting flange.
  • the invention provides that the first exhaust manifold and the second exhaust manifold are fastened together by means of a first retaining rail and a second retaining rail to a cylinder head of the internal combustion engine.
  • the two support rails are formed for example as clamping rails, which are fastened to the cylinder head and thereby urge the first exhaust manifold and the second exhaust manifold in the direction of the cylinder head.
  • the two retaining rails are preferably arranged on opposite sides of the two exhaust manifold, so that the exhaust manifold between the two support rails are securely held.
  • each flange has a seal, which rests sealingly on the bearing surface of the cylinder head after assembly.
  • the first retaining rail has alternately a clamping region for the first exhaust manifold and an insertion region for the second exhaust manifold.
  • the first exhaust manifold is first fastened to the first retaining rail, for which purpose it has the clamping region.
  • a clamping region is assigned to each first connecting flange.
  • the clamping region is designed such that after fastening the first retaining rail to the cylinder head, the first exhaust manifold is already securely held on this.
  • the insertion region is configured in such a way that the second exhaust manifold can also be introduced into the internal combustion engine after it has been attached to the first retaining rail.
  • the invention further relates to a method for assembling an internal combustion engine, in particular an internal combustion engine according to the preceding embodiments, wherein the internal combustion engine has a plurality of cylinders arranged in a row, each having at least a first exhaust valve and at least a second exhaust valve, wherein the first exhaust valve and second exhaust valve being fluidly connected to an exhaust manifold during assembly, the exhaust manifold comprising a first exhaust manifold and a separate exhaust manifold separately and independently securable, and wherein the first exhaust manifold fluidly connects to the first exhaust valve and the second exhaust manifold is fluidly connected to the second exhaust valve.
  • first exhaust manifold and the second exhaust manifold are fastened together by means of a first support rail and a second support rail to a cylinder head of the internal combustion engine, wherein the first support rail alternately comprises a clamping region for the first exhaust manifold and an insertion region for the second exhaust manifold, wherein the clamping region is configured such that after fastening the first retaining rail to the cylinder head, the first exhaust manifold is already securely held thereto, and wherein the insertion region is configured such that the second exhaust manifold even after attaching the first retaining rail to the cylinder head in it can be introduced.
  • the FIG. 1 shows a portion of an internal combustion engine 1, which has a plurality of cylinders arranged in a row, which are not shown here.
  • Each cylinder has at least a first exhaust valve and at least one second exhaust valve. Both the first exhaust valve and the second exhaust valve are fluidly connected to an exhaust manifold 2, which at one not shown here Cylinder head is attached.
  • exhaust manifold 2 exhaust gas is discharged from the cylinders in the direction of an external environment of the internal combustion engine 1, in particular via an exhaust gas purification device, such as a catalyst.
  • an exhaust gas turbocharger in particular a multi-flow exhaust gas turbocharger, or more exhaust gas turbocharger.
  • the exhaust manifold 2 has a first exhaust manifold 3 and a second exhaust manifold 4, not shown here. These are formed separately from each other.
  • the first exhaust manifold 3 is then fluidly connected to the first exhaust valve or the plurality of first exhaust valves and the second exhaust manifold 4 fluidly connected to the second exhaust valve or the plurality of second exhaust valves.
  • the first exhaust manifold 3 has a plurality of first connecting flanges 5, 6, 7 and 8, wherein each cylinder of the internal combustion engine 1 is assigned to one of these connecting flanges 5, 6, 7 or 8.
  • exhaust manifolds 2 with a smaller or a larger number of such connection flanges can be realized.
  • a flow connection is established from the first exhaust valves to an exhaust pipe 9 of the first exhaust manifold 3, in which the exhaust gas is combined and fed to an outlet port 10.
  • the outlet port 10 can be fastened, for example, by means of an outlet flange 11 to a further device of the internal combustion engine 1, for example the exhaust gas turbocharger or one of the exhaust gas turbochargers.
  • the first exhaust manifold 3 is fastened to the cylinder head of the internal combustion engine 1 by means of a first retaining rail 12.
  • the retaining rail 12 with fastening means 13, for example screws, which are only partially visible here, provided.
  • the first retaining rail 12 has clamping regions 14 for the first exhaust manifold 3. These preferably sit between the fastening means 13.
  • each clamping region 14 is assigned to one of the connecting flanges 5, 6, 7 and 8.
  • the clamping regions 14 are configured such that they receive a portion of the connecting flanges 5, 6, 7 and 8 and urge in the direction of the cylinder head or on the cylinder head, so that preferably the first exhaust manifold 3 is held by clamping the first retaining rail 12.
  • first retaining rail 12 insertion areas 15, each adjacent to, the Clamping regions 14 are present.
  • the first exhaust manifold 3 is first fastened to the cylinder head of the internal combustion engine 1 by means of the first retaining rail 12 during a first step. This is shown here.
  • the second exhaust manifold 4 is arranged on the cylinder head.
  • the second exhaust manifold 4 has second connecting flanges 16, 17, 18 and 19.
  • an exhaust pipe 20 is connected.
  • This establishes a flow connection between the cylinders of the internal combustion engine 1 and an outlet port 21, to which preferably an outlet flange 22 is assigned.
  • Last serves, for example, the attachment of the outlet port 21 to a further device of the internal combustion engine 1, in particular the exhaust gas turbocharger.
  • the second connecting flanges 16, 17, 18 and 19 are inserted or inserted into the insertion regions 15 of the first retaining rail 12.
  • the insertion regions 15 are, for example, designed such that, even after the attachment of the first retaining rail 12 to the cylinder head, in particular after complete tightening of the fastening means 13, the insertion of the connecting flanges 16, 17, 18 and 19 into the insertion regions 15 is permitted.
  • each fastening flange 5, 6, 7 and 8 as well as every second connecting flange 16, 17, 18 and 19 is preferably associated with such a fastening means 24.
  • the second retaining rail 23 serves to urge the first exhaust manifold 3 and the second exhaust manifold 4 in the direction of the cylinder head or to the cylinder head. After mounting the second retaining rail 23, the two exhaust manifolds 3 and 4 are securely held on the cylinder head.
  • FIG. 4 shows the exhaust manifold 2 in an alternative view, namely from the direction of the cylinder head of the internal combustion engine 1. It will be apparent that each of the first connecting flanges 5, 6, 7 and 8 first side walls 25 and 26 and the second connecting flanges 16, 17, 18 and 19 have second side walls 27 and 28. If now one of the first side walls 26 and one of the second side walls 27 or one of the first side walls 25 and one of the second side walls 28 opposite each other, it is preferably provided that these are parallel to each other run. At the same time, the first connecting flanges 5, 6, 7 and 8 and the second connecting flanges 16, 17, 18 and 19 are at least partially trapezoidal.
  • first side wall 25 or 26 and the second side wall 27 or 28 are arranged obliquely with respect to an imaginary straight line perpendicular to a longitudinal central axis of the internal combustion engine 1.
  • first connecting flanges 5, 6, 7 and 8 are configured such that they taper in the direction of the first holding rail 12, in particular starting from the second holding rail 23.
  • FIG. 1 shows a detail view of the first retaining rail 12. It becomes clear that it alternately has one of the clamping regions 14 and one of the insertion regions 15, so that they are adjacent to one another, in particular immediately adjacent to one another.

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

Claims (4)

  1. Moteur à combustion interne (1) avec plusieurs cylindres agencés en file, qui présentent respectivement au moins une première soupape de sortie et au moins une seconde soupape de sortie, dans lequel la première soupape de sortie et la seconde soupape de sortie sont reliés en mode fluidique à un dispositif collecteur de gaz d'échappement (2), dans lequel le dispositif collecteur de gaz d'échappement (2) présente un premier collecteur de gaz d'échappement (3) et un second collecteur de gaz d'échappement (4) qui en est séparé, qui peuvent être fixés individuellement et indépendamment l'un de l'autre et dans lequel le premier collecteur de gaz d'échappement (3) est raccordé en mode fluidique à la première soupape de sortie et le second collecteur de gaz d'échappement en mode fluidique à la seconde soupape de sortie, caractérisé en ce que le premier collecteur de gaz d'échappement (3) et le second collecteur de gaz d'échappement (4) sont fixés conjointement au moyen d'un premier rail de retenue (12) et d'un second rail de retenue (23) à une tête de cylindre du moteur à combustion interne (1), dans lequel le premier rail de retenue (12) présente en alternance une zone de blocage (14) pour le premier collecteur de gaz d'échappement (3) et une zone d'enfichage (15) pour le second collecteur de gaz d'échappement (4), dans lequel la zone de blocage (14) est conçue de manière qu'après la fixation du premier rail de retenue (12) à la tête de cylindre, le premier collecteur de gaz d'échappement (3) soit déjà retenu de manière sûre sur celle-ci, et dans lequel la zone d'enfichage (15) est conçue de sorte que le second collecteur de gaz d'échappement (4) puisse, également après la fixation du premier rail de retenue (12) sur la tête de cylindre, être insérée dans celle-ci.
  2. Moteur à combustion interne selon la revendication 1, caractérisé en ce que le premier collecteur de gaz d'échappement (3) présente pour chaque première soupape de sortie une première bride de raccordement (5, 6, 7, 8) et le second collecteur de gaz d'échappement (4) pour chaque seconde soupape de sortie une seconde bride de raccordement (16, 17, 18, 19), dans lequel la première bride de raccordement (5, 6, 7, 8) dispose d'une première paroi latérale (25, 26) et la seconde bride de raccordement (16, 17, 18, 19) d'une seconde paroi latérale (27, 28) s'étendant parallèlement à la première paroi latérale (25, 26) au moins par zones.
  3. Moteur à combustion interne selon l'une quelconque des revendications précédentes, caractérisé en ce que la première bride de raccordement (5, 6, 7, 8) et la seconde bride de raccordement (16, 17, 18, 19) se présentent sous une forme de trapèze au moins par zones.
  4. Procédé de montage d'un moteur à combustion interne (1) en particulier selon une ou plusieurs des revendications précédentes, dans lequel le moteur à combustion interne (1) dispose de plusieurs cylindres agencés en file, qui présentent respectivement au moins une première soupape de sortie et au moins une seconde soupape de sortie, dans lequel la première soupape de sortie et la seconde soupape de sortie sont reliés en mode fluidique au cours du montage à un dispositif collecteur de gaz d'échappement (2), dans lequel le dispositif collecteur de gaz d'échappement (2) présente un premier collecteur de gaz d'échappement (3) et un second collecteur de gaz d'échappement (4) qui en est séparé, qui peuvent être fixés individuellement et indépendamment l'un de l'autre et dans lequel le premier collecteur de gaz d'échappement (3) est raccordé en mode fluidique à la première soupape de sortie et le second collecteur de gaz d'échappement (4) en mode fluidique à la seconde soupape de sortie, caractérisé en ce que le premier collecteur de gaz d'échappement (3) et le second collecteur de gaz d'échappement (4) sont fixés conjointement au moyen d'un premier rail de retenue (12) et d'un second rail de retenue (23) à une tête de cylindre du moteur à combustion interne (1), dans lequel le premier rail de retenue (12) présente en alternance une zone de blocage (14) pour le premier collecteur de gaz d'échappement (3) et une zone d'enfichage (15) pour le second collecteur de gaz d'échappement (4), dans lequel la zone de blocage (14) est conçue de manière qu'après la fixation du premier rail de retenue (12) à la tête de cylindre, le premier collecteur de gaz d'échappement (3) soit déjà retenu de manière sûre sur celle-ci, et dans lequel la zone d'enfichage (15) est conçue de sorte que le second collecteur de gaz d'échappement (4) puisse, également après la fixation du premier rail de retenue (12) sur la tête de cylindre, être insérée dans celle-ci.
EP14761953.0A 2013-10-04 2014-09-05 Moteur à combustion interne et procédé permettant de monter un moteur à combustion interne Active EP3052778B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013016568.7A DE102013016568B4 (de) 2013-10-04 2013-10-04 Brennkraftmaschine sowie Verfahren zum Montieren einer Brennkraftmaschine
PCT/EP2014/002420 WO2015049023A1 (fr) 2013-10-04 2014-09-05 Moteur à combustion interne et procédé permettant de monter un moteur à combustion interne

Publications (2)

Publication Number Publication Date
EP3052778A1 EP3052778A1 (fr) 2016-08-10
EP3052778B1 true EP3052778B1 (fr) 2018-04-04

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EP14761953.0A Active EP3052778B1 (fr) 2013-10-04 2014-09-05 Moteur à combustion interne et procédé permettant de monter un moteur à combustion interne

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EP (1) EP3052778B1 (fr)
DE (1) DE102013016568B4 (fr)
WO (1) WO2015049023A1 (fr)

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
GB2557327B (en) * 2016-12-07 2019-04-24 Jaguar Land Rover Ltd Apparatus and method for disassembling an exhaust arrangement
JP2024066185A (ja) 2022-11-01 2024-05-15 トヨタ自動車株式会社 締結構造及び締結構造の設計方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5588012U (fr) * 1978-12-13 1980-06-18
DE4430339A1 (de) * 1993-11-12 1996-02-29 Bischoff Erhardt Gmbh Co Kg Anordnung zur Flanschverbindung
JP2000027643A (ja) * 1998-07-09 2000-01-25 Nissan Motor Co Ltd 排気マニホールドの締結構造
DE19955090A1 (de) * 1999-11-15 2001-05-17 Fev Motorentech Gmbh Verfahren zum Betreiben einer Kolbenbrennkraftmaschine mit steuerbarem Abgasturbolader sowie Kolbenbrennkraftmaschine zur Durchführung des Verfahrens
SE519321C2 (sv) * 2001-06-29 2003-02-11 Saab Automobile Sätt att driva en förbränningsmotor samt förbränningsmotor
DE10219829B4 (de) * 2002-05-03 2006-05-11 Daimlerchrysler Ag Vorrichtung zum Befestigen eines Abgaskrümmers
DE202005001755U1 (de) * 2005-02-04 2006-06-08 Heinrich Gillet Gmbh Vorrichtung zum Befestigen eines Abgaskrümmers an einem Zylinderkopf
FR2897101A1 (fr) * 2006-02-08 2007-08-10 Renault Sas Dispositif de fixation d'un collecteur
DE102007046656B4 (de) * 2007-09-28 2018-09-13 Audi Ag Verfahren zum Betreiben einer Brennkraftmaschine, Brennkraftmaschine
DE102008029020A1 (de) * 2008-06-18 2009-12-24 Audi Ag Brennkraftmaschine mit integriertem Abgaskrümmer und angeflanschtem Aggregat

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DE102013016568A1 (de) 2015-04-09
DE102013016568B4 (de) 2016-03-24
WO2015049023A1 (fr) 2015-04-09
EP3052778A1 (fr) 2016-08-10

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