EP1761692B1 - Manifold for a multicylinder internal combustion engine - Google Patents

Manifold for a multicylinder internal combustion engine Download PDF

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Publication number
EP1761692B1
EP1761692B1 EP05746366A EP05746366A EP1761692B1 EP 1761692 B1 EP1761692 B1 EP 1761692B1 EP 05746366 A EP05746366 A EP 05746366A EP 05746366 A EP05746366 A EP 05746366A EP 1761692 B1 EP1761692 B1 EP 1761692B1
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EP
European Patent Office
Prior art keywords
baffle plate
shell
manifold
baffle
shells
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.)
Expired - Fee Related
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EP05746366A
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German (de)
French (fr)
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EP1761692A1 (en
Inventor
Winfried Willeke
Christof Henrici
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Faurecia Emissions Control Technologies USA LLC
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Emcon Technologies LLC
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Publication of EP1761692A1 publication Critical patent/EP1761692A1/en
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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
    • 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
    • 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 invention relates to a manifold for a multi-cylinder internal combustion engine, which is composed of several shells.
  • a manifold for a multi-cylinder internal combustion engine which is composed of several shells.
  • Such an exhaust manifold shows, for example, the EP 1 206 631 B1 ,
  • the invention relates to a so-called three-shell manifold in which a lower, an upper and a middle shell are connected to each other at the edge, so that a plurality of inlet channels and a plurality of associated outlet spaces are created.
  • Each engine block-side outlet opens into an associated, separate inlet channel of the manifold, which in turn merges into an outlet space.
  • several inlet ducts pass into a common outlet space in which the hot exhaust gases are distributed, expand and are slightly cooled.
  • the manifolds are exposed to extreme thermal loads. These loads are extreme, especially in the area of the joint welds between the shells and the wall sections, which are hit directly by the exhaust gas flow from the engine. Especially during cold start, different sections of the manifold expand at different speeds and strong, so that it comes here to high voltages in the welds.
  • the invention is intended to reduce these stresses on the weld seams and the walls and decouple the walls of the outlet spaces largely from each other in terms of power.
  • a manifold for a multi-cylinder internal combustion engine having a plurality of outlets, with a plurality of shells connected peripherally to each other to provide intake ports and at least one outlet space into which the intake ports, ie at least some of the intake ports, open one for the at least one inlet channel inflowing exhaust provided, an outlet chamber associated with the baffle at one end edge fixed to one of the shells and at one end remote from it is slidably connected to another of the trays.
  • the exhaust gas entering the manifold from the outlets of the engine first flows onto the baffle, which is consequently subjected to the highest thermal stress.
  • this baffle does not connect shells directly to each other, but is slidably mounted on a shell, so that it can expand thermally, without this leading to a tension between the shells.
  • the baffle also distributes the flow in the outlet chamber, so to speak forms a portion of the wall, thus ensuring a more uniform, faster temperature distribution of the hot exhaust gas in the outlet, so that the other wall sections of the outlet space are more uniformly and thus burdened lower overall.
  • the manifold according to the invention is provided with a lower and an upper shell, which are connected to each other at the edge to create outer inlet channels and an outlet space into which the outer inlet channels open, and a middle shell, the edge with the lower and / or the upper shell to create at least a central, located between the outer inlet channels inlet channel and a second outlet space, in which the middle inlet channel opens, is connected.
  • the baffle is provided for the exhaust gas flowing in via the middle outlet channel and assigned to the second outlet space, and the end of one end is fixedly connected to a shell at one end and to another shell at an opposite end.

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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)

Description

Die Erfindung betrifft einen Krümmer für einen Mehrzylinder-Verbrennungsmotor, der aus mehreren Schalen zusammengesetzt ist. Einen derartigen Abgaskrümmer zeigt beispielweise die EP 1 206 631 B1 .The invention relates to a manifold for a multi-cylinder internal combustion engine, which is composed of several shells. Such an exhaust manifold shows, for example, the EP 1 206 631 B1 ,

Insbesondere betrifft die Erfindung einen sogenannten drei-schaligen Krümmer, bei dem eine untere, eine obere und eine mittlere Schale miteinander randseitig verbunden sind, so daß mehrere Einlaßkanäle und mehrere zugeordnete Auslaßräume geschaffen werden. Jeder motorblockseitige Auslaß mündet dabei in einen zugeordneten, eigenen Einlaßkanal des Krümmers, der wiederum in einen Auslaßraum übergeht. Üblicherweise gehen mehrere Einlaßkanäle in einen gemeinsamen Auslaßraum über, in dem die heißen Abgase sich verteilen, expandieren und etwas abgekühlt werden. Die Krümmer sind extremen thermischen Belastungen ausgesetzt. Diese Belastungen sind insbesondere im Bereich der Verbindungsschweißnähte zwischen den Schalen und der Wandabschnitte, auf die der Abgasstrom unmittelbar aus dem Motor trifft, extrem. Gerade beim Kaltstart dehnen sich auch unterschiedliche Abschnitte des Krümmers unterschiedlich schnell und stark aus, so daß es hier zu hohen Spannungen im Bereich der Schweißnähte kommt.In particular, the invention relates to a so-called three-shell manifold in which a lower, an upper and a middle shell are connected to each other at the edge, so that a plurality of inlet channels and a plurality of associated outlet spaces are created. Each engine block-side outlet opens into an associated, separate inlet channel of the manifold, which in turn merges into an outlet space. Usually, several inlet ducts pass into a common outlet space in which the hot exhaust gases are distributed, expand and are slightly cooled. The manifolds are exposed to extreme thermal loads. These loads are extreme, especially in the area of the joint welds between the shells and the wall sections, which are hit directly by the exhaust gas flow from the engine. Especially during cold start, different sections of the manifold expand at different speeds and strong, so that it comes here to high voltages in the welds.

Die Erfindung soll diese Belastungen auf die Schweißnähte und die Wandungen verringern und die Wände der Auslaßräume kräftemäßig weitgehend voneinander entkoppeln.The invention is intended to reduce these stresses on the weld seams and the walls and decouple the walls of the outlet spaces largely from each other in terms of power.

Dies wird durch einen Krümmer für einen Mehrzylinder-Verbrennungsmotor, der mehrere Auslässe besitzt, geschaffen, mit mehreren Schalen, die randseitig miteinander zur Schaffung von Einlaßkanälen und wenigstens eines Auslaßraums, in den die Einlaßkanäle, d. h. zumindest einige der Einlaßkanäle, münden, verbunden sind und einem für das über wenigstens einen Einlaßkanal einströmende Abgas vorgesehenen, einem Auslaßraum zugeordneten Ablenkblech, das an einem Ende randseitig fest mit einer der Schalen und an einem davon entfernten Ende verschieblich mit einer anderen der Schalen verbunden ist.This is provided by a manifold for a multi-cylinder internal combustion engine having a plurality of outlets, with a plurality of shells connected peripherally to each other to provide intake ports and at least one outlet space into which the intake ports, ie at least some of the intake ports, open one for the at least one inlet channel inflowing exhaust provided, an outlet chamber associated with the baffle at one end edge fixed to one of the shells and at one end remote from it is slidably connected to another of the trays.

Das in den Krümmer eintretende Abgas aus den Auslässen des Motors strömt zuerst auf das Ablenkblech, welches folglich thermisch am höchsten beansprucht ist. Dieses Ablenkblech verbindet aber nicht Schalen unmittelbar miteinander, sondern ist an einer Schale verschieblich befestigt, so daß es sich thermisch ausdehnen kann, ohne daß dies zu einer Spannung zwischen den Schalen führt. Das Ablenkblech verteilt darüber hinaus die Strömung im Auslaßraum, bildet sozusagen einen Abschnitt von dessen Wandung und sorgt damit für eine gleichmäßigere, schnellere Temperaturverteilung des heißen Abgases im Auslaßraum, so daß auch die übrigen Wandabschnitte des Auslaßraums gleichmäßiger und damit insgesamt niedriger belastet werden.The exhaust gas entering the manifold from the outlets of the engine first flows onto the baffle, which is consequently subjected to the highest thermal stress. But this baffle does not connect shells directly to each other, but is slidably mounted on a shell, so that it can expand thermally, without this leading to a tension between the shells. The baffle also distributes the flow in the outlet chamber, so to speak forms a portion of the wall, thus ensuring a more uniform, faster temperature distribution of the hot exhaust gas in the outlet, so that the other wall sections of the outlet space are more uniformly and thus burdened lower overall.

Gemäß der bevorzugten Ausführungsform ist der erfindungsgemäße Krümmer mit einer unteren und einer oberen Schale versehen, die randseitig miteinander zur Schaffung von äußeren Einlaßkanälen und eines Auslaßraums, in den die äußeren Einlaßkanäle münden, verbunden sind, und einer mittleren Schale, die randseitig mit der unteren und/oder der oberen Schale zur Schaffung wenigstens eines mittleren, zwischen den äußeren Einlaßkanälen liegenden Einlaßkanals und eines zweiten Auslaßraums, in den der mittlere Einlaßkanal mündet, verbunden ist. Das Ablenkblech ist für das über den mittleren Auslaßkanal einströmende Abgas vorgesehenen und dem zweiten Auslaßraum zugeordnet und ist das einem Ende randseitig fest mit einer Schale und an einem entgegengesetzten Ende verschieblich mit einer anderen Schale verbunden.According to the preferred embodiment of the manifold according to the invention is provided with a lower and an upper shell, which are connected to each other at the edge to create outer inlet channels and an outlet space into which the outer inlet channels open, and a middle shell, the edge with the lower and / or the upper shell to create at least a central, located between the outer inlet channels inlet channel and a second outlet space, in which the middle inlet channel opens, is connected. The baffle is provided for the exhaust gas flowing in via the middle outlet channel and assigned to the second outlet space, and the end of one end is fixedly connected to a shell at one end and to another shell at an opposite end.

Gemäß der bevorzugten Ausführungsform ist das Ablenkblech an einem Ende mit einer Schale verschweißt, um eine sichere, starre Verbindung zu ermöglichen.According to the preferred embodiment, the baffle is welded at one end to a shell to allow a secure, rigid connection.

Auf dem verschieblichen Ende ist die Befestigung des Ablenkblechs z.B. durch ein U-förmiges, offenes Ende gebildet, in das ein Rand hineinragt, so daß er zwischen den Schenkeln des U-förmigen Endes geführt ist.On the sliding end of the attachment of the baffle is formed for example by a U-shaped, open end into which an edge protrudes, so that it is guided between the legs of the U-shaped end.

In diesem Zusammenhang ist es möglich, daß der Rand am Ablenkblech oder, was aber bevorzugt ist, an einer Schale vorgesehen ist, so daß das U-förmige Ende in dieser bevorzugten Ausführungsform am Ablenkblech sitzt.In this context, it is possible that the edge on the baffle or, which is preferred, is provided on a shell, so that the U-shaped end in this preferred embodiment sits on the baffle.

Das Ablenkblech ist z.B. an einem Ende an der unteren Schale befestigt und verhindert die direkte Anströmung der unteren Schale.The baffle is e.g. attached at one end to the lower shell and prevents the direct flow of the lower shell.

Die obere Schale kann im Bereich des Ablenkblechs einen Ausschnitt besitzen und dadurch eine U-förmige Gestalt haben, so daß das Ablenkblech im Inneren des "U" sitzt und dieses ggf. sogar komplett ausfüllt.The upper shell may have a cutout in the region of the baffle and thus have a U-shaped configuration, so that the baffle is located inside the "U" and possibly even completely fills it.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung und aus den nachfolgenden Zeichnungen, auf die Bezug genommen wird. In den Zeichnungen zeigen:

  • Figur 1 eine schematische Schnittansicht des erfindungsgemäßen Krümmers in einer Ebene parallel zum Motorflansch,
  • Figur 2 eine perspektivische Draufsicht auf den erfindungsgemäßen Krümmer, wobei die mittlere Schale in der Mitte teilweise aufgeschnitten dargestellt ist, um einen Blick auf das Ablenkblech freizugeben, und
  • Figuren 3 und 4 perspektivische Schnittansichten im Bereich der Ebenen III-III bzw. IV-IV, jedoch leicht gedreht, um den Blick auf den aufgeschnittenen Krümmer im Bereich des zweiten Auslaßraums freizugeben.
Further features and advantages of the invention will become apparent from the following description and from the following drawings, to which reference is made. In the drawings show:
  • FIG. 1 a schematic sectional view of the manifold according to the invention in a plane parallel to the motor flange,
  • FIG. 2 a top perspective view of the manifold according to the invention, wherein the middle shell is shown in the middle partially cut away to reveal a view of the baffle, and
  • Figures 3 and 4 Sectional views in the plane III-III and IV-IV, respectively, but slightly rotated to release the view of the cut-open elbow in the region of the second outlet space.

In Figur 1 ist ein Krümmer für einen Vier-Zylinder-Verbrennungsmotor dargestellt, wobei der Verbrennungsmotor vier Auslässe 1 besitzt, die in Bezug auf die Schnittebene nach Figur 1 oberhalb der Zeichenebene sitzen würden und nur zum Zwecke des besseren Verständnisses mit unterbrochenen Linien angedeutet sind.In FIG. 1 a manifold for a four-cylinder internal combustion engine is shown, wherein the internal combustion engine has four outlets 1, which with respect to the cutting plane after FIG. 1 above the plane of the drawing and are only indicated for the purpose of better understanding with broken lines.

Der an den Motorblock angeschraubte Krümmer besitzt einen ebenen, plattenartigen Flansch 3 (siehe Figur 2) und drei miteinander verbundene Schalen aus Blech, die Einlaßkanäle für jeden Auslaß 1 und mehrere Einlaßkanäle zusammenfassende Auslaßräume definieren.The bolted to the engine block manifold has a flat, plate-like flange 3 (see FIG. 2 ) and three interconnected shells made of sheet metal, the inlet channels for each outlet 1 and a plurality of inlet channels summarizing Define outlet spaces.

Eine untere Schale 5 aus Blech hat einen wannenförmigen Abschnitt 7 und vier zum Flansch 3 ragende Fortsätze, die zu einem Rohrunterteil 9, 11 und 13 umgeformt sind. Das vierte Rohrunterteil ist aufgrund der vorgenommenen Schnitte in den Figuren nicht dargestellt. Jedes Rohrunterteil 9 bis 13 hat die Form einer Halbschale. Die Rohrunterteile 9 bis 13 ragen durch entsprechende Öffnungen im Flansch 3 hindurch und sind an diesem befestigt.A lower shell 5 made of sheet metal has a trough-shaped portion 7 and four projections 3 projecting to the flange, which are formed into a tube base 9, 11 and 13. The fourth pipe base is not shown in the figures due to the cuts made. Each tube bottom 9 to 13 has the shape of a half-shell. The tube bases 9 to 13 protrude through corresponding openings in the flange 3 and are secured thereto.

Auf die untere Schale 5 ist eine obere Schale 15 gesetzt, die an ihrem Außenrand 17 mit dem Außenrand 19 der unteren Schale 5 verschweißt und/oder verbördelt ist. Die obere Schale 15 hat nur zwei zum Flansch 3 weisende Fortsätze, die zu halbschalenförmigen Rohroberteilen 21, 23 (siehe Figur 2) umgeformt sind. Die Rohroberteile 21, 23 liegen an den beiden äußeren Rohrunterteilen (Rohrunterteil 9 und das nicht dargestellte Rohrunterteil) an und sind mit diesen randseitig verbunden, so daß zwei äußere Einlaßkanäle 25, 27 gebildet werden, die den äußeren Auslässen 1 zugeordnet sind.On the lower shell 5, an upper shell 15 is set, which is welded at its outer edge 17 with the outer edge 19 of the lower shell 5 and / or crimped. The upper shell 15 has only two extensions pointing to the flange 3, which to shell-shaped Rohroberteilen 21, 23 (see FIG. 2 ) are transformed. The Rohroberteile 21, 23 are located at the two outer tube sections (tube bottom part 9 and the lower tube part, not shown) and are connected to these edges, so that two outer inlet channels 25, 27 are formed, which are associated with the outer outlets 1.

Die obere Schale 15 besitzt im Bereich der mittleren Auslässe 1 eine Vertiefung (siehe Figur 1), die sich entfernt vom Flansch 3 bis näher zum Flansch 3 zunehmend abwärts zur unteren Schale 5 erstreckt. Diese Vertiefung ist durch eine der Rückseite des Flansches zugewandte Wand 29 und in die Wand 29 übergehende Seitenwände 31 definiert. Die Wand 29 hat einen Ausschnitt 33, so daß die obere Schale 15 von oben gesehen eine U-förmige Gestalt hat.The upper shell 15 has in the region of the middle outlets 1 a recess (see FIG. 1 ), which extends away from the flange 3 to nearer to the flange 3 increasingly down to the lower shell 5. This depression is defined by a wall 29 facing the rear side of the flange and side walls 31 merging into the wall 29. The wall 29 has a cutout 33, so that the upper shell 15 seen from above has a U-shaped configuration.

Der Ausschnitt 33 ist in seiner Breite, bezogen auf Figur 1, der Breite des Ablenkblechs 35 angepaßt, welches mit seinem unteren Ende 37 an der unteren Schale 5 angeschweißt ist, wobei die Schweißnaht das Bezugszeichen 39 hat. Die Breite des Ablenkblechs 35 ist so gewählt, daß es in der Ansicht nach Figur 1 beide Projektionen der mittleren Auslässe 1 abdeckt. Das Ablenkblech 35 erstreckt sich, wie in den Figuren 3 und 4 dargestellt ist, von der unteren Schale 5 schräg aufwärts und weg vom Flansch 3 in Richtung zur ebenfalls schräg aufwärts und weg vom Flansch 3 erstreckenden Wand 29.The cutout 33 is in width, based on FIG. 1 , the width of the baffle 35 adapted, which is welded with its lower end 37 to the lower shell 5, wherein the weld has the reference numeral 39. The width of the baffle 35 is chosen so that it in the view FIG. 1 covers both projections of the middle outlets 1. The baffle 35 extends as in FIGS Figures 3 and 4 is shown, from the lower shell 5 obliquely upward and away from the flange 3 in the direction of the obliquely upward and away from the flange 3 extending wall 29th

Die Wand 29 und das Ablenkblech 35 verlaufen teilweise parallel zueinander im Bereich der Seitenränder des Ablenkbleches 35.The wall 29 and the baffle 35 are partially parallel to each other in the region of the side edges of the baffle 35th

Auf der Rückseite des Ablenkblechs 35 im Bereich seines oberen Endes 41 ist ein sich über die gesamte Breite des Ablenkblechs 35 erstreckendes, U-förmiges Blech 43 angeschweißt (siehe Figuren 3 und 4). Das Blech 43 erstreckt sich auch längs der Seitenränder des Ablenkblechs 35 nach unten. Das Ablenkblech 35 und das Blech 43 sind nach der Schweißstelle etwas voneinander weggebogen, so daß sie eine im Querschnitt U-förmige, nach außen offene Aufnahmenut bilden, die sich längs der Seitenränder und des oberen Endes 41 erstrecken. In diese Aufnahmenut wird der Rand 45 des Ausschnitts 33 verschieblich eingeführt, so daß sich zwischen dem Ablenkblech 35 und der oberen Schale 15 eine verschiebliche Lagerung ergibt.On the back of the baffle 35 in the region of its upper end 41 a over the entire width of the baffle 35 extending, U-shaped plate 43 is welded (see Figures 3 and 4 ). The plate 43 also extends along the side edges of the baffle 35 down. The baffle 35 and the plate 43 are slightly bent away from each other after the weld, so that they form a U-shaped in cross-section, outwardly open receiving groove extending along the side edges and the upper end 41. In this receiving groove, the edge 45 of the cutout 33 is slidably inserted, so that there is a displaceable storage between the baffle plate 35 and the upper shell 15.

Eine mittlere Schale 51 liegt über dem Bereich der Einbuchtung der oberen Schale 15 und des Ablenkblechs 35. Die mittlere Schale 51 hat zwei zum Flansch 3 weisende Fortsätze, die Rohroberteile 53, 55 bilden und mit den mittleren RohrUnterteilen 11, 13 der unteren Schale 5 verbunden sind, um zwei mittlere Einlaßkanäle 57, 59 zu bilden.A middle shell 51 is located above the region of the recess of the upper shell 15 and the baffle 35. The middle shell 51 has two extensions pointing to the flange 3, which form Rohroberteile 53, 55 and connected to the middle RohrUnterteilen 11, 13 of the lower shell 5 are to form two central inlet channels 57, 59.

Die verschiebliche Verbindung zwischen der oberen Schale 15 und dem Ablenkblech 35 kann, muß aber nicht auf den oberen Rand 41 beschränkt sein. Vielmehr können, wie beschrieben, zusätzliche oder anstatt dessen auch die Seitenränder des Ablenkblechs 35 in entsprechender Weise verschieblich mit der oberen Schale 15 verbunden sein.The slidable connection between the upper shell 15 and the baffle 35 may, but need not be limited to the upper edge 41. Rather, as described, additional or instead of the side edges of the baffle plate 35 may be connected in a corresponding manner displaceable with the upper shell 15.

Die untere und die obere Schale 5, 15 bilden einen gemeinsamen Auslaßraum 63, der unterhalb des Abdeckblechs 35 verläuft und in den die beiden äußeren Einlaßkanäle 25, 27 münden.The lower and the upper shell 5, 15 form a common outlet space 63 which extends below the cover plate 35 and into which the two outer inlet channels 25, 27 open.

Die beiden mittleren Einlaßkanäle 57, 59 münden in einen gemeinsamen, zweiten Auslaßraum 65, der durch das Ablenkblech 35, den mittleren Teil der oberen Schale 15 und die mittlere Schale 51 begrenzt ist.The two middle inlet channels 57, 59 open into a common, second outlet space 65, which is bounded by the baffle plate 35, the middle part of the upper shell 15 and the middle shell 51.

Beide Auslaßräume 63, 65 führen zu einer einzelnen Abgasleitung 67 (Figur 2), die durch die untere und mittlere Schale 5, 51 definiert wird.Both outlet spaces 63, 65 lead to a single exhaust pipe 67 (FIG. FIG. 2 ) defined by the lower and middle shells 5, 51.

Die Abgasleitung 67 ist zweigeteilt, indem eine Zunge 81 der oberen Schale 15 quer durch die Abgasleitung 67 verläuft und diese in einen oberen Abschnitt für die mittleren Einlaßkanäle 57, 59 und einen unteren Abschnitt für die äußeren Einlaßkanäle 25, 27 teilt.The exhaust pipe 67 is divided into two by a tongue 81 of the upper shell 15 extends transversely through the exhaust pipe 67 and divides it into an upper portion for the middle inlet channels 57, 59 and a lower portion for the outer inlet channels 25, 27.

Diese Strömungsaufteilung ist vorteilhaft, wenn an dem Krümmer ein Turbolader, der nach dem Twin scroll Konzept arbeitet, angeschlossen ist.This flow distribution is advantageous if a turbocharger, which works on the twin scroll concept, is connected to the manifold.

Alternativ könnten die Auslaßkanäle 63, 65 auch innerhalb des Krümmers zusammengeführt werden, oder es könnte ein gemeinsamer Auslaßraum vorgesehen sein.Alternatively, the exhaust ports 63, 65 could be merged within the manifold, or a common exhaust space could be provided.

Das in die mittleren Einlaßkanäle 57, 59 einströmende Abgas prallt unmittelbar auf das Ablenkblech 35, wird durch dieses im zweiten Auslaßraum 65 verteilt, um schließlich zur Abgasleitung 67 zu gelangen, von wo aus es zum Turbolader und zu Abgasreinigungsanlagen strömt.The exhaust gas flowing into the central intake passages 57, 59 directly impacts the deflector plate 35, is distributed through the latter in the second outlet space 65, and finally reaches the exhaust passage 67, from where it flows to the turbocharger and exhaust gas purification systems.

Claims (8)

  1. A manifold for a multicylinder internal combustion engine which includes a plurality of outlets (1), comprising
    a plurality of shells (5, 15, 51) connected with one another on the edges to provide inlet channels (25, 27, 57, 59) and at least one outlet space (63, 65) into which the inlet channels (25, 27, 57, 59) open, and
    a baffle plate (35) that is provided for the exhaust gas flowing in via at least one inlet channel (57, 59) and is associated with an outlet space (65), the baffle plate (35) being firmly connected on the edge at one end (37) with one of the shells (5, 15, 51), characterized in that the baffle plate (35) is displaceably connected with another one of the shells (5, 15, 51) at an end (41) remote therefrom.
  2. The manifold according to claim 1, characterized by
    lower and upper shells (5, 15) connected with one another on the edges to provide outer inlet channels (25, 27) and a first outlet space (63) into which the outer inlet channels (25, 27) open, and
    a central shell (51) connected on the edge with at least one of the lower and upper shells (5, 15) to provide at least one middle inlet channel (57, 59) located between the outer inlet channels (25, 27) and a second outlet space (65) into which the middle inlet channel (57, 59) opens,
    the baffle plate (35) being provided for the exhaust gas flowing in via the middle inlet channel (57, 59) and being associated with the second outlet space (65).
  3. The manifold according to claim 2, characterized in that the baffle plate (35) is attached to the lower shell (5).
  4. The manifold according to claim 2 or 3, characterized in that the upper shell (15) has a cut-out (33) in the region of the baffle plate (35) and is thus formed in the shape of a U.
  5. The manifold according to any of the preceding claims, characterized in that the displaceably connected end (41) of the baffle plate (35) is located opposite to the firmly connected end (37).
  6. The manifold according to any of the preceding claims, characterized in that one end (37) of the baffle plate (35) is welded to a shell (5).
  7. The manifold according to any of the preceding claims, characterized in that the displaceable end (41) is a U-shaped open end into which an edge (45) projects and is guided therein.
  8. The manifold according to claim 7, characterized in that the baffle plate (35) has the U-shaped end (41).
EP05746366A 2004-05-24 2005-05-24 Manifold for a multicylinder internal combustion engine Expired - Fee Related EP1761692B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004025407A DE102004025407A1 (en) 2004-05-24 2004-05-24 Manifold for a multi-cylinder internal combustion engine
PCT/EP2005/005593 WO2005116412A1 (en) 2004-05-24 2005-05-24 Manifold for a multicylinder internal combustion engine

Publications (2)

Publication Number Publication Date
EP1761692A1 EP1761692A1 (en) 2007-03-14
EP1761692B1 true EP1761692B1 (en) 2009-11-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05746366A Expired - Fee Related EP1761692B1 (en) 2004-05-24 2005-05-24 Manifold for a multicylinder internal combustion engine

Country Status (7)

Country Link
US (1) US8584449B2 (en)
EP (1) EP1761692B1 (en)
KR (1) KR100835775B1 (en)
CN (1) CN100538039C (en)
DE (2) DE102004025407A1 (en)
ES (1) ES2335114T3 (en)
WO (1) WO2005116412A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100986061B1 (en) * 2008-04-01 2010-10-07 현대자동차주식회사 Engine that exhaust manifold and cylinder head are integrally fomred
DE102009058047A1 (en) * 2009-12-14 2011-06-16 Benteler Automobiltechnik Gmbh Exhaust manifold with guide plate
US11208934B2 (en) 2019-02-25 2021-12-28 Cummins Emission Solutions Inc. Systems and methods for mixing exhaust gas and reductant

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4850189A (en) * 1987-10-14 1989-07-25 Arvin Industries, Inc. Manifold baffle system
JPH0543227Y2 (en) 1987-12-21 1993-10-29
JPH08109825A (en) 1994-10-13 1996-04-30 Hitachi Metals Ltd Exhaust manifold
DE59501301D1 (en) 1995-09-28 1998-02-19 Benteler Werke Ag Exhaust manifold
JP3649306B2 (en) * 1996-09-12 2005-05-18 本田技研工業株式会社 Exhaust manifold for multi-cylinder internal combustion engines
WO2001011209A1 (en) 1999-08-05 2001-02-15 Haerle Hans A Exhaust gas manifold
DE19957979B4 (en) 1999-12-02 2006-08-10 Audi Ag exhaust manifold
JP2007000992A (en) * 2005-06-27 2007-01-11 Matsushita Electric Works Ltd Body of electric power tool, and electric power tool
JP2007154660A (en) * 2005-11-30 2007-06-21 Futaba Industrial Co Ltd Exhaust manifold

Also Published As

Publication number Publication date
ES2335114T3 (en) 2010-03-22
CN100538039C (en) 2009-09-09
KR20070052706A (en) 2007-05-22
US8584449B2 (en) 2013-11-19
WO2005116412A1 (en) 2005-12-08
DE502005008583D1 (en) 2010-01-07
EP1761692A1 (en) 2007-03-14
DE102004025407A1 (en) 2005-12-22
CN1957162A (en) 2007-05-02
US20080134672A1 (en) 2008-06-12
KR100835775B1 (en) 2008-06-05

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