WO2011113783A1 - Internal combustion engine having a connecting assembly for a cylinder head - Google Patents

Internal combustion engine having a connecting assembly for a cylinder head Download PDF

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Publication number
WO2011113783A1
WO2011113783A1 PCT/EP2011/053776 EP2011053776W WO2011113783A1 WO 2011113783 A1 WO2011113783 A1 WO 2011113783A1 EP 2011053776 W EP2011053776 W EP 2011053776W WO 2011113783 A1 WO2011113783 A1 WO 2011113783A1
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WO
WIPO (PCT)
Prior art keywords
cylinder head
region
combustion engine
internal combustion
connecting pipe
Prior art date
Application number
PCT/EP2011/053776
Other languages
German (de)
French (fr)
Inventor
Thomas Moser
Original Assignee
Avl List Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Avl List Gmbh filed Critical Avl List Gmbh
Publication of WO2011113783A1 publication Critical patent/WO2011113783A1/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
    • F01N13/18—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
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having thermal insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels

Definitions

  • the invention relates to an internal combustion engine having a connection arrangement for a cylinder head, with at least one subsequent to a cylinder head flange in the region of at least one flow opening air or gas carrying part, in particular an exhaust manifold or an intake manifold. Furthermore, the invention relates to a method for producing the connection arrangement.
  • the air or gas-carrying part is screwless connected via at least one connecting pipe to the cylinder head and the connecting pipe is connected via a press fit and / or shrink fit with the cylinder head.
  • the connecting pipe is pressed or shrunk into a flow channel of the cylinder head.
  • the air or Gasabborde part can be sealed without seal with the cylinder head.
  • the connecting pipe has a spaced from the cylinder head end of the connecting pipe annular stop with a stop surface, wherein the stop surface of the connecting pipe, a flange of the Zylinderkopfflansches contacted.
  • connection pipe has at least two regions with different outside diameters, wherein a first region at the cylinder head end of the connection pipe has a larger outside diameter than a second region spaced from the cylinder head side end.
  • the flow channel in the cylinder head may have at least two regions with different inner diameters, wherein a first region of the flow channel which is at a distance from the flow opening has a larger inner diameter than a second region at the flow opening. Between the first and second area, a conically shaped transition area can be arranged in each case.
  • the first region of the connecting tube is thus surrounded by the first region of the flow channel and the second region of the connecting tube by the second region of the flow channel.
  • a positive connection between the connection pipe and the respective flow channel is produced by the outer diameter of the first region of the connection pipe being larger than the inner diameter of the second region of the flow channel, at least in the operating-warm state.
  • the first regions of the connection pipe and of the flow channel on the one hand and the second regions of the connection pipe and of the flow channel are in direct contact.
  • Per cylinder or inlet or outlet usually a flow channel, and a connecting pipe is provided.
  • the press or shrink connection causes by saving screw connections and seals a weight saving, and by saving parts and assembly steps, a cost savings. Furthermore, eliminates the mounting space for screws or the like, which is why more compact designs are possible.
  • FIG. 1 shows a connection arrangement of an internal combustion engine according to the invention in the warm state in a section.
  • FIG. 2 shows detail II from FIG. 1 of this connection arrangement in FIG. 1;
  • Fig. 1 shows a section of a cylinder head 1 in a section with a connection arrangement 2 with an air or gas carrying part 5 fastened to a cylinder head flange 3 via at least one connecting pipe 4.
  • the part 5 can be, for example, an exhaust gas collector or an inlet collector.
  • the part 5 and the cylinder head 1 are joined together sealless.
  • connection between cylinder head flange 3 and part 5 is effected by a press fit or shrink fit 6.
  • connection pipe 4 is inserted into a flow channel 7 of the cylinder head 1 from the side of the flow opening 13.
  • the connecting pipe 4 has an annular stop 8 spaced from the cylinder head end 4a of the connecting pipe 4 with a stop surface 8a, the stop surface 8a of the connecting pipe 4 contacting a flange surface 3a of the cylinder head flange 3.
  • the connecting pipe 4 has at least two regions 9, 10 with different outer diameters Di and D 2 , wherein the outer diameter Di in the first region 9 at the cylinder head end 4a of the connecting pipe 4 is greater than the outer diameters D 2 in a directly adjacent to the stop 8 second Region 10. Between the first and second region 9, 19, a cone-shaped transition region 11 is provided.
  • the flow channel 7 in the cylinder head 1 is correspondingly formed reciprocally.
  • the flow channel 7 has for this purpose between a spaced from the flow opening 13 a first region 12 with a larger inner diameter di and a second region 13 with smaller inner diameter d 2 a conical transition region 14, whose opening angle corresponds to that of the transition region 11.
  • the first region 9 of the connection pipe 4 is surrounded by the first 12 region of the flow channel 7 and the second region 10 of the connection pipe 4 by the second region 13 of the flow channel 7.
  • the outer diameters Di, D 2 are adapted to the inner diameters d i, d 2 so that, in the operating-warm state, the connecting pipe 4 bears tightly against the wall 7 a of the flow channel 7, as shown in FIGS. 1 and 1. 2 is shown. In the cold state, however, a gap Si, s 2 between the connection pipe 4 and the wall 7 a of the flow channel 7 may result.
  • the first outer diameter di of the connecting pipe 4 in the cold state corresponds at least to the second inner diameter D 2 in the second region 13 of the cylinder head flange 3.
  • the connecting pipes 4 are cooled before assembly at the joining cross-section in order to reduce the outer diameter Di in the first region 9 to a dimension which lies below the inner diameter d 2 in the second region 13 of the cylinder head flange 3. Thereafter, the connection pipes 4 are introduced into the prepared space at the end of the flow channels 7 of the cylinder head 1, the stop 8 serves the positioning (Fig. 4). During the subsequent heating of the connecting pipes 4 to the component temperature of the cylinder head 1, the outer surfaces of the connecting pipes 4 each come into contact with the wall 7 a of the flow channel 7. By the cone-like transition region 11, 14, the pressure between the components is increased.
  • the an exhaust collector or intake manifold forming part 5 can thus be gas-tight connected without the aid of additional connecting elements with the cylinder head 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Exhaust Silencers (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The invention relates to an internal combustion engine having a connecting assembly (2) for a cylinder head (1), comprising at least one air- or gas-removing part (5) that connects to a cylinder head flange (3) in the region of at least one flow opening (13) via a parts flange (4), in particular an exhaust manifold or an intake manifold. In order to reduce the assembly complexity and save installation space, the air- or gas-removing part (5) is connected to the cylinder head (1) using no screws.

Description

Brennkraftmaschine mit einer Verbindungsanordnung für einen Zylinderkopf  Internal combustion engine with a connection arrangement for a cylinder head
Die Erfindung betrifft eine Brennkraftmaschine mit einer Verbindungsanordnung für einen Zylinderkopf, mit zumindest einem an einem Zylinderkopfflansch im Bereich zumindest einer Strömungsöffnung anschließenden luft- oder gasführenden Teil, insbesondere einem Abgassammler oder einem Einlasssammler. Weiters betrifft die Erfindung ein Verfahren zur Herstellung der Verbindungsanordnung. The invention relates to an internal combustion engine having a connection arrangement for a cylinder head, with at least one subsequent to a cylinder head flange in the region of at least one flow opening air or gas carrying part, in particular an exhaust manifold or an intake manifold. Furthermore, the invention relates to a method for producing the connection arrangement.
Die DE 10 2008 029 020 AI beschreibt eine Brennkraftmaschine mit einem einen integrierten Abgaskrümmer aufweisenden Zylinderkopf, an dem ein abgasführendes Aggregat mittels einer Klemmflanschvorrichtung montiert ist, wobei die Klemmflanschvorrichtung einen dem Zylinderkopf zugeordneten Zylinderflansch und einen dem Aggregat zugeordneten Aggregat-Flansch aufweist, wobei die Flansche in ihrer Flanschebene gegeneinander gedrückt sind. Um dies zu erreichen, ist mindestens eine in Richtung der Flanschebene montierte, den Zylinderflansch und den Aggregatflansch übergreifende, durch zumindest eine Schräge klemmend auf die beiden Flansche wirkende Spannbrücke vorgesehen. Die Spannbrücke ist über Schrauben direkt mit dem Zylinderkopf verschraubt. DE 10 2008 029 020 AI describes an internal combustion engine with an integrated exhaust manifold having cylinder head to which an exhaust gas-carrying unit is mounted by means of a Klemmflanschvorrichtung, the Klemmflanschvorrichtung a cylinder head associated with the cylinder flange and an aggregate associated with the unit flange, wherein the flanges are pressed against each other in their flange plane. In order to achieve this, at least one tensioning bridge mounted in the direction of the flange plane and extending over the cylinder flange and the assembly flange, by clamping action acting on at least one bevel on the two flanges, is provided. The clamping bridge is bolted directly to the cylinder head via screws.
Nachteilig ist, dass Gewindebohrungen am Zylinderkopf vorgesehen sein müssen, was einerseits den Herstellungsaufwand erhöht und andererseits die Gestaltungsfreiheit am Wassermantel einschränkt. Üblicherweise werden Abgassammler durch Schrauben am Zylinderkopf befestigt, wobei pro Auslasskanal mehrere Schrauben vorgesehen sind. Dies schränkt aber die Konstruktionsfreiheiten stark ein, da die Schrauben auch bei eingebauter Brennkraftmaschine zugänglich sein müssen. Durch die nötigen Schraubenfreigänge und den Arbeitsraum zum Ansetzen des Werkzeuges wird der Bauraum nachteilig beeinflusst. The disadvantage is that threaded holes must be provided on the cylinder head, which on the one hand increases the production cost and on the other hand limits the freedom of design on the water jacket. Usually exhaust manifolds are fastened by screws to the cylinder head, wherein per screw outlet more screws are provided. However, this limits the design freedom greatly, since the screws must be accessible even when installed internal combustion engine. Due to the necessary Schraubenfreigänge and the working space for applying the tool, the space is adversely affected.
Verschiedene Klemmlösungen für die Befestigung von Abgassammlern an Zylinderköpfen sind aus den Veröffentlichungen DE 10 2007 002 825 AI, WO 09/003 668 AI, DE 10 2004 010 815 AI, DE 10 2004 037 865 AI,Various clamping solutions for the attachment of exhaust manifolds on cylinder heads are known from the publications DE 10 2007 002 825 AI, WO 09/003 668 AI, DE 10 2004 010 815 AI, DE 10 2004 037 865 AI,
DE 102 51 771 AI, DE 44 30 339 AI, DE 195 10 718 AI, DE 196 53 908 AI, DE 42 05 454 AI oder DE 23 31 510 AI bekannt. Bei den meisten dieser Lösungen sind aber Schrauben zur Befestigung vorgesehen und relativ viel Montageraum erforderlich. DE 102 51 771 AI, DE 44 30 339 AI, DE 195 10 718 AI, DE 196 53 908 AI, DE 42 05 454 AI or DE 23 31 510 AI known. In most of these solutions but screws are provided for mounting and relatively much mounting space required.
Es ist die Aufgabe der Erfindung, diese Nachteile zu vermeiden und eine alternative Befestigungsmöglichkeit für den Abgaskrümmer bzw. Einlasssammler am Zylinderkopf zu entwickeln, mit welcher der Montageaufwand verringert und Bauraum eingespart werden kann. It is the object of the invention to avoid these disadvantages and an alternative mounting option for the exhaust manifold or inlet collector on To develop cylinder head, which reduces the assembly effort and space can be saved.
Erfindungsgemäß wird dies dadurch erreicht, dass der luft- oder gasabführende Teil schraubenlos über zumindest ein Anschlussrohr mit dem Zylinderkopf verbunden ist und das Anschlussrohr über einen Presssitz und/oder Schrumpfsitz mit dem Zylinderkopf verbunden ist. Vorzugsweise ist das Anschlussrohr in einen Strömungskanal des Zylinderkopfes eingepresst oder eingeschrumpft. According to the invention this is achieved in that the air or gas-carrying part is screwless connected via at least one connecting pipe to the cylinder head and the connecting pipe is connected via a press fit and / or shrink fit with the cylinder head. Preferably, the connecting pipe is pressed or shrunk into a flow channel of the cylinder head.
Dabei kann der luft- oder gasabführende Teil dichtungslos mit dem Zylinderkopf verbunden sein. In this case, the air or Gasabführende part can be sealed without seal with the cylinder head.
Das lagegenaue und rasche Zusammenfügen der Teile wird wesentlich erleichtert, wenn das Anschlussrohr einen vom zylinderkopfseitigen Ende des Anschlussrohres beabstandeten ringförmigen Anschlag mit einer Anschlagfläche aufweist, wobei die Anschlagfläche des Anschlussrohres, eine Flanschfläche des Zylinderkopfflansches kontaktiert. The exact position and rapid assembly of the parts is substantially facilitated if the connecting pipe has a spaced from the cylinder head end of the connecting pipe annular stop with a stop surface, wherein the stop surface of the connecting pipe, a flange of the Zylinderkopfflansches contacted.
In einer besonders vorteilhaften Ausführungsvariante der Erfindung ist vorgesehen, dass das Anschlussrohres zumindest zwei Bereiche mit unterschiedlichen Außendurchmessern aufweist, wobei ein erster Bereich am zylinderkopfseitigen Ende des Anschlussrohres einen größeren Außendurchmesser aufweist, als ein vom zylinderkopfseitigen Ende beabstandeter zweiter Bereich. Analog dazu kann der Strömungskanal im Zylinderkopf zumindest zwei Bereiche mit unterschiedlichen Innendurchmessern aufweisen, wobei ein von der Strömungsöffnung beabstandeter erster Bereich des Strömungskanals einen größeren Innendurchmesser aufweist, als ein zweiter Bereich an der Strömungsöffnung . Zwischen erstem und zweitem Bereich kann jeweils ein konusartig gestalteter Übergangsbereich angeordnet sein. In a particularly advantageous embodiment variant of the invention, it is provided that the connection pipe has at least two regions with different outside diameters, wherein a first region at the cylinder head end of the connection pipe has a larger outside diameter than a second region spaced from the cylinder head side end. Analogously, the flow channel in the cylinder head may have at least two regions with different inner diameters, wherein a first region of the flow channel which is at a distance from the flow opening has a larger inner diameter than a second region at the flow opening. Between the first and second area, a conically shaped transition area can be arranged in each case.
Im montierten Zustand ist somit der erste Bereich des Anschlussrohres vom ersten Bereich des Strömungskanals und der zweite Bereich des Anschlussrohres vom zweiten Bereich des Strömungskanals umgeben. Somit wird zusätzlich zur durch den Press- oder Schrumpfsitz gebildeten kraftschlüssigen Verbindung eine formschlüssige Verbindung zwischen dem Anschlussrohr und dem jeweiligen Strömungskanal hergestellt, indem zumindest im betriebswarmen Zustand der Außendurchmesser des ersten Bereiches des Anschlussrohres größer ist als der Innendurchmesser des zweiten Bereiches des Strömungskanals. In the mounted state, the first region of the connecting tube is thus surrounded by the first region of the flow channel and the second region of the connecting tube by the second region of the flow channel. Thus, in addition to the frictional connection formed by the press-fit or shrink fit, a positive connection between the connection pipe and the respective flow channel is produced by the outer diameter of the first region of the connection pipe being larger than the inner diameter of the second region of the flow channel, at least in the operating-warm state.
Zumindest im betriebswarmen Zustand sind die ersten Bereiche des Anschlussrohres und des Strömungskanals einerseits und die zweiten Bereiche des Anschlussrohres und des Strömungskanals in direktem Kontakt. Pro Zylinder bzw. Ein- oder Auslasskanal ist üblicherweise ein Strömungskanal, sowie ein Anschlussrohr vorgesehen. At least in the operating warm state, the first regions of the connection pipe and of the flow channel on the one hand and the second regions of the connection pipe and of the flow channel are in direct contact. Per cylinder or inlet or outlet usually a flow channel, and a connecting pipe is provided.
Die Press- oder Schrumpfverbindung bewirkt durch Einsparung von Schraubenverbindungen und Dichtungen eine Gewichtsersparnis, und durch Einsparung von Teilen und Montageschritten eine Kostenersparnis. Weiters entfällt der Montageraum für Schrauben oder dergleichen, weshalb kompaktere Konstruktionen möglich werden. The press or shrink connection causes by saving screw connections and seals a weight saving, and by saving parts and assembly steps, a cost savings. Furthermore, eliminates the mounting space for screws or the like, which is why more compact designs are possible.
Die Erfindung wird im folgenden an Hand der Figuren näher erläutert. Es zeigen : The invention will be explained in more detail below with reference to FIGS. Show it :
Fig. 1 eine Verbindungsanordnung einer erfindungsgemäßen Brennkraftmaschine im warmen Zustand in einem Schnitt; 1 shows a connection arrangement of an internal combustion engine according to the invention in the warm state in a section.
Fig. 2 das Detail II aus Fig. 1 dieser Verbindungsanordnung in Fig . 1; FIG. 2 shows detail II from FIG. 1 of this connection arrangement in FIG. 1;
Fig. 3 die Verbindungsanordnung im abgekühlten Zustand im Schnitt; 3 shows the connection arrangement in the cooled state in section.
und  and
Fig. 4 das Detail IV aus Fig. 3. 4 shows the detail IV of FIG. 3.
Fig . 1 zeigt einen Ausschnitt eines Zylinderkopfes 1 in einem Schnitt mit einer Verbindungsanordnung 2 mit einem an einem Zylinderkopfflansch 3 über zumindest ein Anschlussrohr 4 befestigten luft- oder gasführenden Teil 5. Der Teil 5 kann beispielsweise ein Abgassammler oder ein Einlasssammler sein. Der Teil 5 und der Zylinderkopf 1 sind dichtungslos zusammengefügt. Fig. 1 shows a section of a cylinder head 1 in a section with a connection arrangement 2 with an air or gas carrying part 5 fastened to a cylinder head flange 3 via at least one connecting pipe 4. The part 5 can be, for example, an exhaust gas collector or an inlet collector. The part 5 and the cylinder head 1 are joined together sealless.
Die Verbindung zwischen Zylinderkopfflansch 3 und Teil 5 erfolgt durch einen Presssitz oder Schrumpfsitz 6. Dabei ist das Anschlussrohr 4 in einen Strömungskanal 7 des Zylinderkopfes 1 von der Seite der Strömungsöffnung 13 eingeführt. Das Anschlussrohr 4 weist einen vom zylinderkopfseitigen Ende 4a des Anschlussrohres 4 beabstandeten ringförmigen Anschlag 8 mit einer Anschlagfläche 8a aufweist, wobei die Anschlagfläche 8a des Anschlussrohres 4, eine Flanschfläche 3a des Zylinderkopfflansches 3 kontaktiert. The connection between cylinder head flange 3 and part 5 is effected by a press fit or shrink fit 6. In this case, the connection pipe 4 is inserted into a flow channel 7 of the cylinder head 1 from the side of the flow opening 13. The connecting pipe 4 has an annular stop 8 spaced from the cylinder head end 4a of the connecting pipe 4 with a stop surface 8a, the stop surface 8a of the connecting pipe 4 contacting a flange surface 3a of the cylinder head flange 3.
Das Anschlussrohr 4 weist zumindest zwei Bereiche 9, 10 mit unterschiedlichen Außendurchmessern Di und D2 aufweist, wobei der Außendurchmesser Di im erster Bereich 9 am zylinderkopfseitigen Ende 4a des Anschlussrohres 4 größer ist als der Außendurchmessern D2 in einem unmittelbar an den Anschlag 8 grenzenden zweiten Bereich 10. Zwischen dem ersten und zweiten Bereich 9, 19 ist ein konusförmiger Übergangsbereich 11 vorgesehen. Der Strömungskanal 7 im Zylinderkopf 1 ist entsprechend reziprok geformt. Der Strömungskanal 7 weist dazu zwischen einem von der Strömungsöffnung 13a beabstandeten erster Bereich 12 mit größerem Innendurchmesser di und einem zweiten Bereich 13 mit kleinerem Innendurchmesser d2 einen konischen Übergangsbereich 14 auf, dessen Öffnungswinkel dem des Übergangsbereiches 11 entspricht. Im montierten Zustand ist der erste Bereich 9 des Anschlussrohres 4 vom ersten 12 Bereich des Strömungskanals 7 und der zweite Bereich 10 des Anschlussrohres 4 vom zweiten Bereich 13 des Strömungskanals 7 umgeben ist. The connecting pipe 4 has at least two regions 9, 10 with different outer diameters Di and D 2 , wherein the outer diameter Di in the first region 9 at the cylinder head end 4a of the connecting pipe 4 is greater than the outer diameters D 2 in a directly adjacent to the stop 8 second Region 10. Between the first and second region 9, 19, a cone-shaped transition region 11 is provided. The flow channel 7 in the cylinder head 1 is correspondingly formed reciprocally. The flow channel 7 has for this purpose between a spaced from the flow opening 13 a first region 12 with a larger inner diameter di and a second region 13 with smaller inner diameter d 2 a conical transition region 14, whose opening angle corresponds to that of the transition region 11. In the assembled state, the first region 9 of the connection pipe 4 is surrounded by the first 12 region of the flow channel 7 and the second region 10 of the connection pipe 4 by the second region 13 of the flow channel 7.
Die Außendurchmesser Di, D2 sind an die Innendurchmesser di, d2 so angepasst, dass im betriebswarmen Zustand das Anschlussrohr 4 dicht an der Wand 7a des Strömungskanals 7 anliegt, wie in Fig. 1 und Fig . 2 gezeigt ist. Im kalten Zustand dagegen kann sich ein Spalt Si, s2 zwischen dem Anschlussrohr 4 und der Wand 7a des Strömungskanals 7 ergeben. Vorteilhafterweise entspricht der erste Außendurchmesser di des Anschlussrohres 4 im kalten Zustand mindestens dem zweiten Innendurchmesser D2 im zweiten Bereich 13 des Zylinderkopfflansches 3. The outer diameters Di, D 2 are adapted to the inner diameters d i, d 2 so that, in the operating-warm state, the connecting pipe 4 bears tightly against the wall 7 a of the flow channel 7, as shown in FIGS. 1 and 1. 2 is shown. In the cold state, however, a gap Si, s 2 between the connection pipe 4 and the wall 7 a of the flow channel 7 may result. Advantageously, the first outer diameter di of the connecting pipe 4 in the cold state corresponds at least to the second inner diameter D 2 in the second region 13 of the cylinder head flange 3.
Die Anschlussrohre 4 werden vor der Montage am Fügequerschnitt abgekühlt, um den Außendurchmesser Di im ersten Bereich 9 auf ein Maß zu verringern, welches unterhalb des Innendurchmessers d2 im zweiten Bereich 13 des Zylinderkopfflansches 3 liegt. Danach werden die Anschlussrohre 4 in den dafür vorbereiteten Bauraum am Ende der Strömungskanäle 7 des Zylinderkopfes 1 eingeführt, der Anschlag 8 dient dabei der Positionierung (Fig. 4). Bei der anschließenden Erwärmung der Anschlussrohre 4 auf die Bauteiltemperatur des Zylinderkopfes 1 kommen die Außenflächen der Anschlussrohre 4 jeweils mit der Wand 7a des Strömungskanals 7 zur Anlage. Durch den konusartigen Übergangsbereich 11, 14 wird die Pressung zwischen den Bauteilen erhöht. The connecting pipes 4 are cooled before assembly at the joining cross-section in order to reduce the outer diameter Di in the first region 9 to a dimension which lies below the inner diameter d 2 in the second region 13 of the cylinder head flange 3. Thereafter, the connection pipes 4 are introduced into the prepared space at the end of the flow channels 7 of the cylinder head 1, the stop 8 serves the positioning (Fig. 4). During the subsequent heating of the connecting pipes 4 to the component temperature of the cylinder head 1, the outer surfaces of the connecting pipes 4 each come into contact with the wall 7 a of the flow channel 7. By the cone-like transition region 11, 14, the pressure between the components is increased.
Der einen Abgassammler oder Einlasssammler ausbildende Teil 5 kann somit ohne Zuhilfenahme von zusätzlichen Verbindungselementen mit dem Zylinderkopf 1 gasdicht verbunden werden. The an exhaust collector or intake manifold forming part 5 can thus be gas-tight connected without the aid of additional connecting elements with the cylinder head 1.

Claims

P A T E N T A N S P R Ü C H E PATENT APPLICATIONS
1. Brennkraftmaschine mit einer Verbindungsanordnung (2) für einen Zylinderkopf (1), mit zumindest einem an einem Zylinderkopfflansch (3) im Bereich zumindest einer Strömungsöffnung (13a) anschließenden luft- oder gasabführender Teil (5), insbesondere einem Abgassammler oder einem Einlasssammler, dadurch gekennzeichnet, dass der luft- oder gasabführende Teil (5) schraubenlos über zumindest ein Anschlussrohr (4) mit dem Zylinderkopf (1) verbunden ist und das Anschlussrohr (4) über einen Presssitz und/oder Schrumpfsitz mit dem Zylinderkopf (1) verbunden ist. 1. Internal combustion engine with a connection arrangement (2) for a cylinder head (1), with at least one on a cylinder head flange (3) in the region of at least one flow opening (13a) subsequent air or gasabführender part (5), in particular an exhaust manifold or an intake manifold, characterized in that the air or Gasabführende part (5) is screwless via at least one connecting pipe (4) with the cylinder head (1) is connected and the connecting pipe (4) via a press fit and / or shrink fit with the cylinder head (1) ,
2. Brennkraftmaschine nach Anspruch 1, dadurch gekennzeichnet, dass das Anschlussrohr (4) in einen Strömungskanal (7) des Zylinderkopfes (1) ein- gepresst oder eingeschrumpft ist. 2. Internal combustion engine according to claim 1, characterized in that the connecting pipe (4) in a flow channel (7) of the cylinder head (1) is pressed or shrunk.
3. Brennkraftmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der luft- oder gasabführende Teil (5) dichtungslos mit dem Zylinderkopf (1) verbunden ist. 3. Internal combustion engine according to claim 1 or 2, characterized in that the air or gasabführende part (5) is sealingly connected to the cylinder head (1).
4. Brennkraftmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Anschlussrohr (4) einen vom zylinderkopfseitigen Ende (4a) des Anschlussrohres (4) beabstandeten ringförmigen Anschlag (8) mit einer Anschlagfläche (8a) aufweist, wobei die Anschlagfläche (8a) des Anschlussrohres (4), eine Flanschfläche (3a) des Zylinderkopfflansches (3) kontaktiert. 4. Internal combustion engine according to one of claims 1 to 3, characterized in that the connecting pipe (4) has a cylinder head end (4a) of the connecting pipe (4) spaced annular stop (8) with a stop surface (8a), wherein the stop surface ( 8a) of the connecting pipe (4), a flange surface (3a) of the cylinder head flange (3) contacted.
5. Brennkraftmaschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Anschlussrohr (4) zumindest zwei Bereiche (9, 10) mit unterschiedlichen Außendurchmessern (Di, D2) aufweist, wobei ein erster Bereich (9) am zylinderkopfseitigen Ende (4a) des Anschlussrohres (4) einen größeren Außendurchmesser (Di) aufweist, als ein vom zylinderkopfseitigen Ende (4a) beabstandeter zweiter Bereich (10). 5. Internal combustion engine according to one of claims 1 to 4, characterized in that the connecting pipe (4) has at least two regions (9, 10) with different outer diameters (Di, D 2 ), wherein a first region (9) at the cylinder head end ( 4a) of the connecting pipe (4) has a larger outer diameter (Di) than a second area (10) spaced from the cylinder head end (4a).
6. Brennkraftmaschine nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Strömungskanal (4) im Zylinderkopf (1) zumindest zwei Bereiche (12, 13) mit unterschiedlichen Innendurchmessern (di, d2) aufweist, wobei ein von der Strömungsöffnung (13a) beabstandeter erster Bereich (12) des Strömungskanals (4) einen größeren Innendurchmesser (di) aufweist, als ein zweiter Bereich (13) an der Strömungsöffnung (13a). 6. Internal combustion engine according to one of claims 1 to 6, characterized in that the flow channel (4) in the cylinder head (1) at least two regions (12, 13) with different inner diameters (di, d 2 ), wherein one of the flow opening ( 13a) spaced first region (12) of the flow channel (4) has a larger inner diameter (di), as a second region (13) at the flow opening (13a).
7. Brennkraftmaschine nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass zwischen erstem und zweitem Bereich (9, 10; 12, 13) ein konusartig gestalteter Übergangsbereich (11, 14) angeordnet ist. 7. Internal combustion engine according to claim 5 or 6, characterized in that between the first and second region (9, 10, 12, 13) a conically shaped transition region (11, 14) is arranged.
8. Brennkraftmaschine nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass im montierten Zustand der erste Bereich (9) des Anschlussrohres (4) vom ersten (12) Bereich des Strömungskanals (7) und der zweite Bereich (10) des Anschlussrohres (4) vom zweiten Bereich (13) des Strömungskanals (7) umgeben ist. 8. Internal combustion engine according to one of claims 5 to 7, characterized in that in the mounted state, the first region (9) of the connection pipe (4) from the first (12) region of the flow channel (7) and the second region (10) of the connection pipe ( 4) is surrounded by the second region (13) of the flow channel (7).
9. Brennkraftmaschine nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, dass zumindest im betriebswarmen Zustand der Außendurchmesser (Dl) des ersten Bereiches (12) des Anschlussrohres (4) größer ist als der Innendurchmesser (d2) des zweiten Bereiches (10) des Strömungskanals (7). 9. Internal combustion engine according to one of claims 5 to 8, characterized in that at least in the operating temperature state, the outer diameter (Dl) of the first region (12) of the connection pipe (4) is greater than the inner diameter (d2) of the second region (10) of the Flow channel (7).
10. Verfahren zur Herstellung einer Verbindungsanordnung für eine Brennkraftmaschine nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der luft- oder gasabführende Teil (5) schraubenlos über zumindest ein Anschlussrohr (4) mit dem Zylinderkopf (1) verbunden wird, wobei das Anschlussrohr (4) in einen Strömungskanal (7) des Zylinderkopfes (1) einge- presst oder eingeschrumpft wird . 10. A method for producing a connecting arrangement for an internal combustion engine according to one of claims 1 to 9, characterized in that the air or gasabführende part (5) screwless via at least one connecting pipe (4) with the cylinder head (1) is connected, wherein the Connecting pipe (4) is pressed or shrunk into a flow channel (7) of the cylinder head (1).
PCT/EP2011/053776 2010-03-18 2011-03-14 Internal combustion engine having a connecting assembly for a cylinder head WO2011113783A1 (en)

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ATA440/2010 2010-03-18
AT4402010A AT509689B1 (en) 2010-03-18 2010-03-18 HEAD-COLLECTOR ARRANGEMENT
AT15312010A AT508336B1 (en) 2010-03-18 2010-09-14 INTERNAL COMBUSTION ENGINE WITH A CONNECTION ASSEMBLY FOR A CYLINDER HEAD
ATA1531/2010 2010-09-14

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PCT/EP2011/053776 WO2011113783A1 (en) 2010-03-18 2011-03-14 Internal combustion engine having a connecting assembly for a cylinder head
PCT/EP2011/053762 WO2011113776A1 (en) 2010-03-18 2011-03-14 Internal combustion engine having a connecting assembly for a cylinder head

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AT509689A1 (en) 2011-10-15
WO2011113780A1 (en) 2011-09-22
AT508087A3 (en) 2013-03-15
AT508336B1 (en) 2014-02-15
AT509689B1 (en) 2015-02-15
AT508233B1 (en) 2012-12-15
AT508087A2 (en) 2010-10-15
AT508234A3 (en) 2013-12-15
WO2011113776A1 (en) 2011-09-22
AT508233A3 (en) 2012-08-15
AT508234B1 (en) 2014-03-15
AT508336A2 (en) 2010-12-15
DE102011001195A1 (en) 2011-09-22
AT508336A3 (en) 2013-10-15
AT508234A2 (en) 2010-11-15
AT508087B1 (en) 2013-09-15

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