WO2012072672A1 - Exhaust-gas turbocharger having a bypass valve - Google Patents

Exhaust-gas turbocharger having a bypass valve Download PDF

Info

Publication number
WO2012072672A1
WO2012072672A1 PCT/EP2011/071362 EP2011071362W WO2012072672A1 WO 2012072672 A1 WO2012072672 A1 WO 2012072672A1 EP 2011071362 W EP2011071362 W EP 2011071362W WO 2012072672 A1 WO2012072672 A1 WO 2012072672A1
Authority
WO
WIPO (PCT)
Prior art keywords
turbine housing
ring
exhaust gas
gas turbocharger
turbocharger according
Prior art date
Application number
PCT/EP2011/071362
Other languages
German (de)
French (fr)
Inventor
Ralf Böning
Marc Hiller
Ralph-Maurice KÖMPEL
Original Assignee
Continental Automotive 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 Continental Automotive Gmbh filed Critical Continental Automotive Gmbh
Publication of WO2012072672A1 publication Critical patent/WO2012072672A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F02B37/183—Arrangements of bypass valves or actuators therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/16—Control of working fluid flow
    • F02C9/18—Control of working fluid flow by bleeding, bypassing or acting on variable working fluid interconnections between turbines or compressors or their stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to an exhaust gas turbocharger, the one
  • Turbochargers serve to improve the efficiency of a combustion ⁇ engine and thus to increase its performance.
  • the turbocharger has a turbine with a turbine wheel and a compressor with a compressor wheel, wherein the two wheels are arranged on a common shaft.
  • the turbine wheel is in this case driven via an exhaust gas mass flow of a connected internal combustion engine and in turn drives the compressor wheel.
  • the compressor compresses fresh air sucked in and feeds it to the internal combustion engine.
  • the common shaft is mounted in a bearing housing of the turbocharger.
  • the turbine wheel of the turbine is arranged in a turbine housing and the compressor wheel of the compressor in a compressor housing.
  • Such a turbocharger has to fulfill various requirements in operation on the internal combustion engine or a connected engine.
  • One of these requirements is to accommodate the high temperatures that may arise, for example, due to the hot exhaust gas mass flow in the turbocharger housing.
  • turbocharger thereby provides individual housings which each consist of a material adapted to the prevailing temperature there.
  • the compressor housing is usually made of aluminum
  • the bearing housing is made of gray cast iron, wherein the bearing housing can also be designed to be water cooled.
  • the turbine housing is generally made of materials with a high nickel content because of the high temperatures that prevail in this area. Due to the adapted, different materials for the individual housing, these housings are as formed separate parts which are interconnected and also have to be sealed against each other. Such a turbocharger is therefore expensive to manufacture and assembly.
  • Such a regulation of an exhaust gas turbocharger can be carried out using a bypass valve, which is also referred to as wastegate.
  • a bypass valve has a valve connected to the turbine housing of the exhaust gas turbocharger, which can be opened as needed to pass exhaust gas past the turbine directly into the exhaust of the vehicle. As a result, a further increase in the turbine speed is prevented.
  • bypass valve Due to its position in the hot exhaust gas flow, such a bypass valve is subject to a high thermal and mechanical load. This can lead to the fact that the valve seat located in the turbine housing of the bypass valve is severely impaired in its function. It can also lead to a destruction of the flap seat and thus the bypass valve.
  • the object of the invention is to provide an exhaust gas turbocharger, which does not have the disadvantages mentioned above.
  • Turbine housing material is displaced to this paragraph.
  • Figure 1 is a perspective sketch illustrating an exemplary embodiment of a water-cooled turbine housing, on which a flap of the
  • Figure 3 shows sketches to explain the shrinkage of a ring in the turbine housing of an exhaust gas turbocharger
  • a caulking with a circumferential step ver ⁇ ring provided in the turbine housing of an exhaust gas turbocharger.
  • An exhaust gas turbocharger which has a turbine housing and is equipped with a bypass valve having a valve flap, the valve flap closing on a ring, which is shrunk into the turbine housing and caulked with this.
  • FIG. 1 shows a perspective sketch for Veran ⁇ illustrating an embodiment of a water-cooled turbine housing 1, to which a flap 2 of the bypass valve is attached. Furthermore, a ring 3, a flap lever 4 and a flap plate 5 are shown in FIG.
  • FIG. 2 shows exemplary embodiments of the embodiment of a ring cast into the turbine housing and caulked with it, on which the valve flap of the
  • FIG. 2a An exemplary embodiment is shown in FIG. 2a, in which the ring 3 cast into the turbine housing 1 is provided with a peripheral groove 3a along its outer circumference. From the figure 2a it can be seen that in this groove 3a material of the turbine housing 1 is introduced. By this introduced into the groove 3a of the ring 3 turbine housing material is achieved that the ring is non-positively and positively connected to the turbine housing.
  • FIG. 2b an embodiment is shown in which the shrunk into the turbine housing 1 and caulked with this ring 3 is connected along its outer circumference with a um ⁇ current paragraph 3b. It can be seen from FIG. 2b that material of the turbine housing 1 was applied to this circumferential shoulder 3b during caulking. The caulking can be done circumferentially or punctually. Also applied by this to level 3b
  • Turbine housing material is achieved, that the ring 3 is positively and positively connected to the turbine housing 1.
  • FIG. 3 shows diagrams for explaining the Einschrumpfens and caulking a ring in the turbine housing of an exhaust turbocharger ⁇ .
  • the turbine housing 1 is shown in Figure 3a, in which a ring 3, which preferably consists of steel shrunk and firmly connected by caulking with the turbine housing 1.
  • FIG. 3 b shows that a valve flap 2 of a bypass valve is placed on the ring 3, which is shrunk into the turbine housing 1 and connected thereto by caulking, the ring 3 serving as a support for the flap valve 5, which acts on the flap lever 4 is stored.
  • the ring 3 is again shown separately, it being understood that this ring is provided along its outer periphery with neither a groove nor with a paragraph.
  • FIG. 4 shows sketches for explaining the shrinkage and caulking of a ring, which is provided on its outer circumference with a circumferential shoulder, into the turbine housing of an exhaust-gas turbocharger.
  • the turbine housing 1 is shown in Figure 4a, in which the ring 3, which is provided along its outer periphery with a shoulder 3b and which preferably consists of steel, shrunk and fixedly connected by caulking with the turbine housing 1.
  • the flap plates 5 resting on the ring 3 and the flap lever 4 are shown.
  • the ring 3 is again shown separately, wherein it can be seen that this ring, like the ring shown in FIG. 2b, is provided with a shoulder 3b along its outer circumference.
  • An advantageous embodiment of the invention is to specify a stop in the turbine housing 1, which predetermines a Aufla ⁇ geposition of the ring 3 in the turbine housing 1.
  • a stop in the turbine housing which predetermines a Aufla ⁇ geposition of the ring 3 in the turbine housing 1.
  • This stop is made of a material which is harder than the material of the turbine housing and preferably also has a higher melting point than the material of which the turbine housing is made.
  • This stop according to another imple mentation form also have a bend, so that it sets the support position of the ring both in its axial direction and in the radial direction.

Abstract

The invention relates to an exhaust-gas turbocharger which has a turbine housing and is equipped with a bypass valve which has a valve flap. The valve flap rests on a ring which is either shrunk into the turbine housing, is caulked with the latter or is cast into it.

Description

Beschreibung / Description Description / Description
Abgasturbolader mit einem Bypassventil Exhaust gas turbocharger with a bypass valve
Die Erfindung betrifft einen Abgasturbolader, der ein The invention relates to an exhaust gas turbocharger, the one
Bypassventil aufweist. Bypass valve has.
Turbolader dienen dazu, den Wirkungsgrad eines Verbrennungs¬ motors zu verbessern und damit dessen Leistung zu steigern. Der Turbolader weist hierzu eine Turbine mit einem Turbinenrad und einen Verdichter mit einem Verdichterrad auf, wobei die beiden Laufräder auf einer gemeinsamen Welle angeordnet sind. Das Turbinenrad wird hierbei über einen Abgasmassenstrom einer angeschlossenen Brennkraftmaschine angetrieben und treibt wiederum das Verdichterrad an. Der Verdichter verdichtet angesaugte Frischluft und führt diese der Brennkraftmaschine zu. Die gemeinsame Welle ist in einem Lagergehäuse des Turboladers gelagert. Des Weiteren ist das Turbinenrad der Turbine in einem Turbinengehäuse angeordnet und das Verdichterrad des Verdichters in einem Verdichtergehäuse. Turbochargers serve to improve the efficiency of a combustion ¬ engine and thus to increase its performance. For this purpose, the turbocharger has a turbine with a turbine wheel and a compressor with a compressor wheel, wherein the two wheels are arranged on a common shaft. The turbine wheel is in this case driven via an exhaust gas mass flow of a connected internal combustion engine and in turn drives the compressor wheel. The compressor compresses fresh air sucked in and feeds it to the internal combustion engine. The common shaft is mounted in a bearing housing of the turbocharger. Furthermore, the turbine wheel of the turbine is arranged in a turbine housing and the compressor wheel of the compressor in a compressor housing.
Ein solcher Turbolader hat im Betrieb an der Brennkraftmaschine bzw. einem angeschlossenen Motor verschiedenste Anforderungen zu erfüllen. Eine dieser Anforderungen besteht darin, die hohen Temperaturen aufzunehmen, die beispielsweise aufgrund des heißen Abgasmassenstroms in dem Turboladergehäuse entstehen können. Such a turbocharger has to fulfill various requirements in operation on the internal combustion engine or a connected engine. One of these requirements is to accommodate the high temperatures that may arise, for example, due to the hot exhaust gas mass flow in the turbocharger housing.
Die übliche Konstruktion eines Turboladers sieht dabei einzelne Gehäuse vor, die jeweils aus einem an die dort herrschende Temperatur angepassten Werkstoff bestehen. Dabei ist das Verdichtergehäuse üblicherweise aus Aluminium, während das Lagergehäuse aus Grauguss ist, wobei das Lagergehäuse zusätzlich auch wassergekühlt ausgeführt sein kann. Das Turbinengehäuse besteht im Allgemeinen aufgrund der hohen Temperaturen, die in diesem Bereich herrschen, aus Werkstoffen mit einem hohen Nickelanteil. Aufgrund der angepassten, unterschiedlichen Werkstoffe für die einzelnen Gehäuse sind diese Gehäuse als separate Teile ausgebildet, die miteinander verbunden sind und dabei außerdem gegeneinander abgedichtet sein müssen. Ein solcher Turbolader ist daher aufwendig in der Herstellung und der Montage . The usual construction of a turbocharger thereby provides individual housings which each consist of a material adapted to the prevailing temperature there. In this case, the compressor housing is usually made of aluminum, while the bearing housing is made of gray cast iron, wherein the bearing housing can also be designed to be water cooled. The turbine housing is generally made of materials with a high nickel content because of the high temperatures that prevail in this area. Due to the adapted, different materials for the individual housing, these housings are as formed separate parts which are interconnected and also have to be sealed against each other. Such a turbocharger is therefore expensive to manufacture and assembly.
Je mehr die Motordrehzahl steigt, desto schneller dreht sich durch die antreibende Abgasmenge das Turbinenrad der Turbine und mit diesem auch die Welle des Abgasturboladers, auf welcher sich weiterhin das Verdichterrad des Verdichters befindet. Durch die schnellere Drehung der Welle und damit auch des Verdichterrades erhöht sich die Luftfördermenge des Verdichters. Dies führt zu einer wachsenden Abgasmenge des Motors und damit wiederum zu einem schnelleren Antreiben des Turbinenrades. Um die jeweils gegebenen mechanischen und thermischen Grenzen des Motors nicht zu überschreiten, ist eine Regelung des Abgasturboladers notwendig . The more the engine speed increases, the faster the turbine wheel of the turbine rotates due to the driving exhaust gas quantity, and with this also the shaft of the exhaust gas turbocharger, on which the compressor wheel of the compressor remains. The faster rotation of the shaft and thus also of the compressor wheel increases the air flow rate of the compressor. This leads to a growing amount of exhaust gas of the engine and thus in turn to a faster driving of the turbine wheel. In order not to exceed the respective given mechanical and thermal limits of the engine, a regulation of the exhaust gas turbocharger is necessary.
Eine derartige Regelung eines Abgasturboladers kann unter Verwendung eines Bypassventils erfolgen, das auch als Wastegate bezeichnet wird. Ein derartiges Bypassventil weist eine mit dem Turbinengehäuse des Abgasturboladers verbundene Klappe auf, die bei Bedarf geöffnet werden kann, um Abgas an der Turbine vorbei direkt in den Auspuff des Fahrzeugs zu leiten. Dadurch wird ein weiteres Ansteigen der Turbinendrehzahl unterbunden. Such a regulation of an exhaust gas turbocharger can be carried out using a bypass valve, which is also referred to as wastegate. Such a bypass valve has a valve connected to the turbine housing of the exhaust gas turbocharger, which can be opened as needed to pass exhaust gas past the turbine directly into the exhaust of the vehicle. As a result, a further increase in the turbine speed is prevented.
Ein derartiges Bypassventil unterliegt aufgrund seiner Position im heißen Abgasstrom einer hohen thermischen und mechanischen Belastung. Dies kann dazu führen, dass der im Turbinengehäuse befindliche Klappensitz des Bypassventils in seiner Funktion stark beeinträchtigt wird. Es kann auch zu einer Zerstörung des Klappensitzes und damit des Bypassventils kommen. Due to its position in the hot exhaust gas flow, such a bypass valve is subject to a high thermal and mechanical load. This can lead to the fact that the valve seat located in the turbine housing of the bypass valve is severely impaired in its function. It can also lead to a destruction of the flap seat and thus the bypass valve.
Die Aufgabe der Erfindung besteht darin, einen Abgasturbolader anzugeben, der die vorstehend genannten Nachteile nicht auf- weist. The object of the invention is to provide an exhaust gas turbocharger, which does not have the disadvantages mentioned above.
Diese Aufgabe wird durch einen Abgasturbolader mit den im Anspruch 1 angegebenen Merkmalen gelöst. Vorteilhafte Ausge- staltungen und Weiterbildungen eines Abgasturboladers mit den im Anspruch 1 angegebenen Merkmalen sind Gegenstand der abhängigen Patentansprüche . Die Vorteile der Erfindung bestehen insbesondere darin, dass ein in das Turbinengehäuse eingeschrumpfter und mit diesem verstemmter Ring, auf welchem die Ventilklappe des Bypassventils bei geschlossener Klappenstellung aufliegt, aus einem für hohe Temperaturen und mechanische Belastungen geeigneten Material gewählt werden kann. Ein derartiger Ring benötigt nur einen sehr geringen Einbauraum. Des Weiteren wird erreicht, dass der Wärmeübergang vom Ring zum Turbinengehäuse, welches vorzugsweise wassergekühlt ist, durch die Auflageflächen des Ringes am Turbinengehäuse erheblich verbessert ist. This object is achieved by an exhaust gas turbocharger with the features specified in claim 1. Advantageous Events and developments of an exhaust gas turbocharger with the features specified in claim 1 are the subject of the dependent claims. The advantages of the invention are, in particular, that a shrunk into the turbine housing and caulked with this ring on which the valve flap of the bypass valve rests with the flap closed, can be selected from a suitable material for high temperatures and mechanical stress. Such a ring requires only a very small installation space. Furthermore, it is achieved that the heat transfer from the ring to the turbine housing, which is preferably water-cooled, is significantly improved by the bearing surfaces of the ring on the turbine housing.
Weist der Ring an seinem Außenumfang einen umlaufenden Absatz auf, dann ist sichergestellt, dass verstemmtes Has the ring on its outer circumference on a circumferential shoulder, then it is ensured that caulked
Turbinengehäusematerial auf diesen Absatz verdrängt wird. Turbine housing material is displaced to this paragraph.
Dadurch wird eine definierte Auflage des Ringes auf dem Tur- binengehäuse für alle Betriebssituationen sichergestellt, was wiederum die Dichtheit des Abgasturboladers begünstigt. Des Weiteren kann aufgrund des genannten Absatzes die Höhe des Ringes und damit der Abstand der auf dem Ring aufliegenden Klappe zur Bodenfläche des Ringes variiert werden. Dies führt zu montage- und strömungsraumtechnischen Vorteilen, aufgrund welcher die Abführung des heißen Abgases von der Bypassklappe optimiert ist. Darüber hinaus wird eine deutlich höhere Haltbarkeit des Ringes gewährleistet . Nachfolgend wird die Erfindung anhand der Zeichnungen näher erläutert. Es zeigt This ensures a defined support of the ring on the turbine housing for all operating situations, which in turn favors the tightness of the exhaust gas turbocharger. Furthermore, due to the said paragraph, the height of the ring and thus the distance of the resting on the ring flap to the bottom surface of the ring can be varied. This leads to advantages in terms of assembly and flow space, due to which the discharge of the hot exhaust gas from the bypass flap is optimized. In addition, a significantly higher durability of the ring is ensured. The invention will be explained in more detail with reference to the drawings. It shows
Figur 1 eine perspektivische Skizze zur Veranschaulichung eines Ausführungsbeispiels für ein wassergekühltes Turbinengehäuse, an welchem eine Klappe desFigure 1 is a perspective sketch illustrating an exemplary embodiment of a water-cooled turbine housing, on which a flap of the
Bypassventils befestigt ist, Figur 2 Skizzen zweier Ausführungsbeispiele für die Ausge¬ staltung eines Ringes, Bypass valve is attached, 2 shows sketches of two embodiments for the Substituted ¬ staltung a ring,
Figur 3 Skizzen zur Erläuterung des Einschrumpfens eines Ringes in das Turbinengehäuse eines Abgasturboladers und Figure 3 shows sketches to explain the shrinkage of a ring in the turbine housing of an exhaust gas turbocharger and
Figur 4 Skizzen zur Erläuterung des Einschrumpfens und Figure 4 sketches to explain the shrinkage and
Verstemmens eines mit einer umlaufenden Stufe ver¬ sehenen Ringes in das Turbinengehäuse eines Abgas- turboladers. A caulking with a circumferential step ver ¬ ring provided in the turbine housing of an exhaust gas turbocharger.
Nachfolgend wird ein Abgasturbolader beschrieben, der ein Turbinengehäuse aufweist und mit einem eine Ventilklappe aufweisenden Bypassventil ausgestattet ist, wobei die Ven- tilklappe auf einem Ring schließt, der in das Turbinengehäuse eingeschrumpft und mit diesem verstemmt ist. An exhaust gas turbocharger is described below, which has a turbine housing and is equipped with a bypass valve having a valve flap, the valve flap closing on a ring, which is shrunk into the turbine housing and caulked with this.
Die Figur 1 zeigt eine perspektivische Skizze zur Veran¬ schaulichung eines Ausführungsbeispiels für ein wassergekühltes Turbinengehäuse 1, an welchem eine Klappe 2 des Bypassventils befestigt ist. Des Weiteren sind in der Figur 1 ein Ring 3, ein Klappenhebel 4 und ein Klappenteller 5 gezeigt. 1 shows a perspective sketch for Veran ¬ illustrating an embodiment of a water-cooled turbine housing 1, to which a flap 2 of the bypass valve is attached. Furthermore, a ring 3, a flap lever 4 and a flap plate 5 are shown in FIG.
Die Figur 2 zeigt Ausführungsbeispiele für die Ausgestaltung eines in das Turbinengehäuse eingegossenen und mit diesem verstemmten Ringes, auf welchem die Ventilklappe des FIG. 2 shows exemplary embodiments of the embodiment of a ring cast into the turbine housing and caulked with it, on which the valve flap of the
Bypassventils aufliegt. Bypass valve rests.
Dabei ist in der Figur 2a ein Ausführungsbeispiel gezeigt, bei welchem der in das Turbinengehäuse 1 eingegossene Ring 3 entlang seines Außenumfanges mit einer umlaufenden Nut 3a versehen ist. Aus der Figur 2a ist ersichtlich, dass in diese Nut 3a Material des Turbinengehäuses 1 eingebracht ist. Durch dieses in die Nut 3a des Ringes 3 eingebrachte Turbinengehäusematerial wird erreicht, dass der Ring kraft- und formschlüssig mit dem Turbinengehäuse verbunden ist. In der Figur 2b ist ein Ausführungsbeispiel gezeigt, bei welchem der in das Turbinengehäuse 1 eingeschrumpfte und mit diesem verstemmte Ring 3 entlang seines Außenumfanges mit einem um¬ laufenden Absatz 3b verbunden ist. Aus der Figur 2b ist er- sichtlich, dass auf diesen umlaufenden Absatz 3b während des Verstemmens Material des Turbinengehäuses 1 aufgebracht wurde. Das Verstemmen kann dabei umlaufend oder punktuell erfolgen. Auch durch dieses auf die Stufe 3b aufgebrachte An exemplary embodiment is shown in FIG. 2a, in which the ring 3 cast into the turbine housing 1 is provided with a peripheral groove 3a along its outer circumference. From the figure 2a it can be seen that in this groove 3a material of the turbine housing 1 is introduced. By this introduced into the groove 3a of the ring 3 turbine housing material is achieved that the ring is non-positively and positively connected to the turbine housing. In the figure 2b, an embodiment is shown in which the shrunk into the turbine housing 1 and caulked with this ring 3 is connected along its outer circumference with a um ¬ current paragraph 3b. It can be seen from FIG. 2b that material of the turbine housing 1 was applied to this circumferential shoulder 3b during caulking. The caulking can be done circumferentially or punctually. Also applied by this to level 3b
Turbinegehäusematerial wird erreicht, dass der Ring 3 kraft- und formschlüssig mit dem Turbinengehäuse 1 verbunden ist.  Turbine housing material is achieved, that the ring 3 is positively and positively connected to the turbine housing 1.
Die Figur 3 zeigt Skizzen zur Erläuterung des Einschrumpfens und Verstemmens eines Ringes in das Turbinengehäuse eines Abgas¬ turboladers. Dabei ist in der Figur 3a das Turbinengehäuse 1 gezeigt, in welches ein Ring 3, der vorzugsweise aus Stahl besteht, eingeschrumpft und durch ein Verstemmen mit dem Turbinengehäuse 1 fest verbunden ist. Die Figur 3b zeigt, dass auf den Ring 3, der in das Turbinengehäuse 1 eingeschrumpft und mit diesem durch ein Verstemmen verbunden ist, eine Ventilklappe 2 eines Bypassventils aufgesetzt ist, wobei der Ring 3 als Auflage für den Ventilklappenteller 5 dient, welcher am Klappenhebel 4 gelagert ist. In der Figur 3c ist der Ring 3 nochmals gesondert dargestellt, wobei ersichtlich ist, dass dieser Ring entlang seines Außenumfanges weder mit einer Nut noch mit einem Absatz versehen ist. 3 shows diagrams for explaining the Einschrumpfens and caulking a ring in the turbine housing of an exhaust turbocharger ¬. In this case, the turbine housing 1 is shown in Figure 3a, in which a ring 3, which preferably consists of steel shrunk and firmly connected by caulking with the turbine housing 1. FIG. 3 b shows that a valve flap 2 of a bypass valve is placed on the ring 3, which is shrunk into the turbine housing 1 and connected thereto by caulking, the ring 3 serving as a support for the flap valve 5, which acts on the flap lever 4 is stored. In the figure 3c, the ring 3 is again shown separately, it being understood that this ring is provided along its outer periphery with neither a groove nor with a paragraph.
Die Figur 4 zeigt Skizzen zur Erläuterung des Einschrumpfens und Verstemmens eines Ringes, der an seinem Außenumfang mit einem umlaufenden Absatz versehen ist, in das Turbinengehäuse eines Abgasturboladers. Dabei ist in der Figur 4a das Turbinengehäuse 1 gezeigt, in welches der Ring 3, der entlang seines Außenumfanges mit einem Absatz 3b versehen ist und welcher vorzugsweise aus Stahl besteht, eingeschrumpft und durch ein Verstemmen mit dem Turbinengehäuse 1 fest verbunden ist. Des Weiteren sind in der Figur 4a der auf dem Ring 3 aufliegende Klappenteller 5 und der Klappenhebel 4 gezeigt. In der Figur 4b ist der Ring 3 nochmals gesondert dargestellt, wobei ersichtlich ist, dass dieser Ring ebenso wie der in der Figur 2b gezeigte Ring entlang seines Außenumfanges mit einem Absatz 3b versehen ist. FIG. 4 shows sketches for explaining the shrinkage and caulking of a ring, which is provided on its outer circumference with a circumferential shoulder, into the turbine housing of an exhaust-gas turbocharger. In this case, the turbine housing 1 is shown in Figure 4a, in which the ring 3, which is provided along its outer periphery with a shoulder 3b and which preferably consists of steel, shrunk and fixedly connected by caulking with the turbine housing 1. Furthermore, in FIG. 4 a, the flap plates 5 resting on the ring 3 and the flap lever 4 are shown. In FIG. 4b, the ring 3 is again shown separately, wherein it can be seen that this ring, like the ring shown in FIG. 2b, is provided with a shoulder 3b along its outer circumference.
Eine vorteilhafte Ausgestaltung der Erfindung besteht darin, im Turbinengehäuse 1 einen Anschlag vorzugeben, der eine Aufla¬ geposition des Ringes 3 im Turbinengehäuse 1 vorgibt. Zu diesem Zweck kann in einer vorgegebenen Tiefe des Turbinengehäuses, welches aus einem Leichtmetall , vorzugsweise Aluminium, besteht, ein Einschluss eines anderen Materials vorgesehen sein, das den Anschlag bildet . Dieser Anschlag besteht aus einem Material , das härter ist als das Material des Turbinengehäuses und vorzugsweise auch einen höheren Schmelzpunkt aufweist als das Material, aus welchem das Turbinegehäuse besteht. Dieser Anschlag kann gemäß einer weiteren Aus führungsform auch eine Abwinkelung aufweisen, so dass er die Auflageposition des Ringes sowohl in dessen Axialrichtung als auch in Radialrichtung vorgibt. An advantageous embodiment of the invention is to specify a stop in the turbine housing 1, which predetermines a Aufla ¬ geposition of the ring 3 in the turbine housing 1. For this purpose, at a predetermined depth of the turbine housing, which consists of a light metal, preferably aluminum, an inclusion of another material may be provided, which forms the stop. This stop is made of a material which is harder than the material of the turbine housing and preferably also has a higher melting point than the material of which the turbine housing is made. This stop, according to another imple mentation form also have a bend, so that it sets the support position of the ring both in its axial direction and in the radial direction.

Claims

Patentansprüche / Patent Claims Claims / Patent Claims
1. Abgasturbolader, der ein Turbinengehäuse (1) aufweist und mit einem eine Ventilklappe (2) aufweisenden Bypassventil ausge- stattet ist, dadurch gekennzeichnet, dass die Ventilklappe (2) auf einem Ring (3) aufliegt, der entweder in das Turbinengehäuse (1) eingeschrumpft und mit diesem verstemmt ist oder in dieses eingegossen ist. An exhaust gas turbocharger, which has a turbine housing (1) and is equipped with a bypass valve having a valve flap (2), characterized in that the valve flap (2) rests on a ring (3) which is either in the turbine housing (1 ) shrunk and caulked with this or is poured into this.
2. Abgasturbolader nach Anspruch 1 , dadurch gekennzeichnet, dass der Ring (3) ein Stahlring ist. 2. Exhaust gas turbocharger according to claim 1, characterized in that the ring (3) is a steel ring.
3. Abgasturbolader nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass im Turbinengehäuse (1) ein Anschlag vorgesehen ist, der eine Auflageposition des Ringes im Turbinengehäuse (1) vorgibt . 3. Exhaust gas turbocharger according to claim 1 or 2, characterized in that in the turbine housing (1) is provided a stop which predetermines a support position of the ring in the turbine housing (1).
4. Abgasturbolader nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Ring (3) an seinem Außenumfang einen umlaufenden Absatz (3b) aufweist, auf welchen Material des Turbinengehäuses (1) aufgebracht ist. 4. Exhaust gas turbocharger according to one of the preceding claims, characterized in that the ring (3) on its outer circumference has a peripheral shoulder (3b), on which material of the turbine housing (1) is applied.
5. Abgasturbolader nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet , dass der Ring (3) mit dem Turbinengehäuse (1) umlaufend oder punktuell verstemmt ist. 5. Exhaust gas turbocharger according to one of the preceding claims, characterized in that the ring (3) with the turbine housing (1) is circumferentially or selectively caulked.
6. Abgasturbolader nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der in das Turbinengehäuse (1) eingegossene Ring (3) mit dem Turbinengehäuse verstemmt ist. 6. Exhaust gas turbocharger according to one of claims 1 to 3, characterized in that in the turbine housing (1) cast ring (3) is caulked to the turbine housing.
7. Abgasturbolader nach einem der Ansprüche 1 bis 3 oder 6, dadurch gekennzeichnet, dass der Ring (3) an seinem Außenumfang eine umlaufende Nut (3a) aufweist, in welche Material des Turbinengehäuses (1) eingebracht ist. 7. Exhaust gas turbocharger according to one of claims 1 to 3 or 6, characterized in that the ring (3) has on its outer circumference a circumferential groove (3a), in which material of the turbine housing (1) is introduced.
8. Abgasturbolader nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Ring (3) an seinem Außenumfang einen umlaufenden Absatz (3b) aufweist, welcher vom Material des Turbinengehäuses (1) umschlossen wird. 8. Exhaust gas turbocharger according to one of claims 1 to 3, characterized in that the ring (3) on its outer circumference a having circumferential shoulder (3b), which is enclosed by the material of the turbine housing (1).
9. Abgasturbolader nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Turbinengehäuse (1) aus einem Leichtmetall besteht. 9. Exhaust gas turbocharger according to one of the preceding claims, characterized in that the turbine housing (1) consists of a light metal.
10. Abgasturbolader nach Anspruch 9, dadurch gekennzeichnet, dass das Turbinengehäuse (1) aus Aluminium besteht. 10. Exhaust gas turbocharger according to claim 9, characterized in that the turbine housing (1) consists of aluminum.
11. Abgasturbolader nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Turbinengehäuse (1) einen oder mehrere Kühlkanäle aufweist. 11. Exhaust gas turbocharger according to one of the preceding claims, characterized in that the turbine housing (1) has one or more cooling channels.
PCT/EP2011/071362 2010-12-03 2011-11-30 Exhaust-gas turbocharger having a bypass valve WO2012072672A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010062403A DE102010062403A1 (en) 2010-12-03 2010-12-03 Exhaust gas turbocharger with a bypass valve
DE102010062403.9 2010-12-03

Publications (1)

Publication Number Publication Date
WO2012072672A1 true WO2012072672A1 (en) 2012-06-07

Family

ID=45047832

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/071362 WO2012072672A1 (en) 2010-12-03 2011-11-30 Exhaust-gas turbocharger having a bypass valve

Country Status (2)

Country Link
DE (1) DE102010062403A1 (en)
WO (1) WO2012072672A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015209929A1 (en) * 2015-05-29 2016-12-01 Continental Automotive Gmbh Impeller housing for an exhaust gas turbocharger with a valve seat ring having a bypass valve and exhaust gas turbocharger and assembly method

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012121925A2 (en) * 2011-03-04 2012-09-13 Borgwarner Inc. Multi-stage turbocharger arrangement
CN103620184B (en) 2011-06-22 2016-10-26 株式会社Ihi Multistage supercharging system
KR101655616B1 (en) * 2014-12-15 2016-09-08 현대자동차주식회사 Apparatus for supporting waste gate module
DE102014225966A1 (en) 2014-12-16 2016-06-16 Continental Automotive Gmbh Impeller housing with a bypass valve device for exhaust gas turbocharger and turbocharger
DE102015212305A1 (en) 2015-07-01 2017-01-05 Continental Automotive Gmbh Impeller housing for an exhaust gas turbocharger with a valve seat ring having a bypass valve and exhaust gas turbocharger and method for producing a valve seat ring
DE102015219328A1 (en) 2015-10-07 2017-04-13 Bayerische Motoren Werke Aktiengesellschaft Exhaust gas turbocharger and method for producing such an exhaust gas turbocharger
DE102016210016A1 (en) * 2016-06-07 2017-12-07 Borgwarner Inc. Insert for a bypass in a turbine housing
DE102016216599A1 (en) 2016-09-02 2018-03-08 Bayerische Motoren Werke Aktiengesellschaft Exhaust gas turbocharger for a vehicle
DE102017202961A1 (en) 2017-02-23 2018-08-23 BMTS Technology GmbH & Co. KG Wastegate valve means
DE102017218382A1 (en) 2017-10-13 2019-04-18 Continental Automotive Gmbh Impeller housing for an exhaust gas turbocharger with a valve seat ring having a bypass valve and exhaust gas turbocharger and assembly method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1043112A (en) * 1963-02-13 1966-09-21 Schwitzer Corp Improvements in or relating to turbochargers for internal combustion engines
DE3937402A1 (en) * 1989-11-10 1991-05-16 Porsche Ag IC-engine cylinder head valve seat - is cast in cylinder head and projection extending into cylinder head away from combustion chamber
DE10149287A1 (en) * 2001-10-05 2003-04-24 Bayerische Motoren Werke Ag Exhaust gas two stage turbocharger for I.C engine with switchable turbocharger arrangement, has diverter flap located in turbocharger housing
WO2009106166A1 (en) * 2008-02-27 2009-09-03 Continental Automotive Gmbh Cooled double-walled turbine housing
EP2199564A1 (en) * 2007-10-11 2010-06-23 Mitsubishi Heavy Industries, Ltd. Fluid switching valve device, exhaust gas control valve comprising the same, and west gate valve
DE102010013702A1 (en) * 2010-04-01 2011-10-06 Continental Automotive Gmbh Turbine for exhaust gas turbocharger, particularly for motor vehicle, has turbine housing and waste gate-valve which has waste gate-flap that controls flue gas volume passing through waste gate-valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1043112A (en) * 1963-02-13 1966-09-21 Schwitzer Corp Improvements in or relating to turbochargers for internal combustion engines
DE3937402A1 (en) * 1989-11-10 1991-05-16 Porsche Ag IC-engine cylinder head valve seat - is cast in cylinder head and projection extending into cylinder head away from combustion chamber
DE10149287A1 (en) * 2001-10-05 2003-04-24 Bayerische Motoren Werke Ag Exhaust gas two stage turbocharger for I.C engine with switchable turbocharger arrangement, has diverter flap located in turbocharger housing
EP2199564A1 (en) * 2007-10-11 2010-06-23 Mitsubishi Heavy Industries, Ltd. Fluid switching valve device, exhaust gas control valve comprising the same, and west gate valve
WO2009106166A1 (en) * 2008-02-27 2009-09-03 Continental Automotive Gmbh Cooled double-walled turbine housing
DE102010013702A1 (en) * 2010-04-01 2011-10-06 Continental Automotive Gmbh Turbine for exhaust gas turbocharger, particularly for motor vehicle, has turbine housing and waste gate-valve which has waste gate-flap that controls flue gas volume passing through waste gate-valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015209929A1 (en) * 2015-05-29 2016-12-01 Continental Automotive Gmbh Impeller housing for an exhaust gas turbocharger with a valve seat ring having a bypass valve and exhaust gas turbocharger and assembly method

Also Published As

Publication number Publication date
DE102010062403A1 (en) 2012-06-06

Similar Documents

Publication Publication Date Title
WO2012072672A1 (en) Exhaust-gas turbocharger having a bypass valve
EP2649322B1 (en) Turbocharger which is integrated into the cylinder head of an engine
EP2659097B1 (en) Exhaust-gas turbocharger having a water-cooled turbine housing with an integrated electric wastegate actuator
EP2659105B1 (en) Exhaust-gas turbocharger having a turbine housing with an integrated wastegate actuator
DE10297203T5 (en) turbocharger
DE102010013702A1 (en) Turbine for exhaust gas turbocharger, particularly for motor vehicle, has turbine housing and waste gate-valve which has waste gate-flap that controls flue gas volume passing through waste gate-valve
WO2011058104A2 (en) Turbocharger housing
DE112013001173T5 (en) Systems and methods for protecting a turbocharger aluminum bearing housing
DE102007017824A1 (en) turbocharger
DE102015114935B4 (en) Turbocharger with boost pressure control valve
DE102011002627A1 (en) Exhaust gas turbocharger with a compressor housing with integrated wastegate actuator
WO2010003537A2 (en) Turbine housing for an exhaust gas turbocharger of an internal combustion engine
DE102014223044A1 (en) Exhaust gas turbocharger and internal combustion engine
DE102007025128A1 (en) loader
DE102010030516A1 (en) Exhaust gas turbocharger for internal combustion engine, has turbine wheel rotatably arranged in bearing housing, compressor housing and turbine housing via drive shaft, where shaft is driven by compressor wheel
DE102014101398B4 (en) Turbocharger compressor with integrated back plate and bearing housing
DE102008000848A1 (en) Exhaust gas turbocharger for internal-combustion engine of motor vehicle, has adjusting pieces fully opening, partially opening or closing cross section depending upon misalignment position, where cross section lies between guide vanes
DE102013001978A1 (en) Valve unit for a wastegate system and turbocharger
DE102010019542A1 (en) Adjustment device, in particular for an exhaust gas guide section of an exhaust gas turbocharger and exhaust gas turbocharger
EP2071134A2 (en) Turbine with variable geometry
WO2014131413A1 (en) Sealing arrangement for a turbocharger shaft of an exhaust gas turbocharger
DE102010054914A1 (en) Guide device for fluid energy machine, particularly exhaust gas turbocharger, comprises inner ring and outer ring surrounding inner ring from outer peripheral side, where inner ring and outer ring are rotatable around rotation axis
DE102012218138A1 (en) Supercharger for motor vehicle, has adjusting element formed as thin sheet component that is arranged on turbine wheel at opposite side of blade bearing ring in which several guide vanes are rotatably mounted
DE202014104463U1 (en) Liquid cooled turbine with bearing housing
DE102014218782A1 (en) Charged internal combustion engine with liquid-cooled turbine and bearing housing

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11788518

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11788518

Country of ref document: EP

Kind code of ref document: A1