EP1751400B1 - Reduction of vibrations in a combustion engine and turbocharger system - Google Patents

Reduction of vibrations in a combustion engine and turbocharger system Download PDF

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Publication number
EP1751400B1
EP1751400B1 EP05741982.2A EP05741982A EP1751400B1 EP 1751400 B1 EP1751400 B1 EP 1751400B1 EP 05741982 A EP05741982 A EP 05741982A EP 1751400 B1 EP1751400 B1 EP 1751400B1
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EP
European Patent Office
Prior art keywords
gas turbocharger
combustion engine
exhaust
internal combustion
vibrations
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EP05741982.2A
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German (de)
French (fr)
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EP1751400A1 (en
Inventor
Alfons Tröndle
Balz Flury
Christoph Mathey
Heikki Mikonaho
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Wartsila Finland Oy
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Wartsila Finland Oy
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/04—Antivibration arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10078—Connections of intake systems to the engine
    • 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

Definitions

  • the invention relates to the field of supercharged internal combustion engines. It relates to an exhaust gas turbocharger and a system of internal combustion engine and exhaust gas turbocharger with a device for reducing vibrations.
  • Internal combustion engine and exhaust gas turbocharger systems have structural natural frequencies, which are excited by the ignition frequency of the engine and / or multiples of the rated engine speed, depending on their type of installation. If such resonances are within the operating range of the engine, the engine with the exhaust gas turbocharger can vibrate to an unduly high degree.
  • the resonance can be shifted away from the speed by changing the system stiffness or structural natural frequency.
  • multiple resonances may be within the intended operating range. Then often occur high vibrations, which can lead to a reduction in the service life of individual components or the entire system.
  • the invention is therefore an object of the invention to provide a system of internal combustion engine and exhaust gas turbocharger or an exhaust gas turbocharger for such a system in which the internal combustion engine can be operated in the entire available speed range without resulting in the life of individual components or the resulting oscillations to reduce the whole system.
  • the vibration damper and / or the vibration damper is attached to an exposed, strongly vibrating point of the system. Since there the vibrations are strongest and thus the vibration reducing agents can be used most effectively.
  • the exhaust gas turbocharger is usually attached to an exposed position on the internal combustion engine, it is particularly effective to attach the vibration reducing means on the exhaust gas turbocharger, for example on the filter muffler air inlet side of the compressor housing.
  • the damper or vibration absorber should act primarily in the main vibration direction of the eigenmodes of the lowest natural frequencies of the engine turbocharger system, d. H. usually in the direction of the turbocharger axis and transverse (horizontal) to it.
  • the turbocharger is usually mounted on a console above the engine or at the front of the engine in an exposed position. Through this exposed position he experiences the strongest vibrations and is therefore most suitable for the attachment of vibration dampers and vibration absorbers.
  • the mass of the vibration absorber is around 5 - 10% of the turbocharger weight. In this way, a balance is created between the damper force to be achieved and the additional weight which the loader must endure mechanically.
  • the damping is achieved by the damping properties of the attachment or with a separate damper.
  • components of the turbocharger can be used as a vibration damper or vibration.
  • a decoupled filter silencer can be used as absorber mass, while on the attachment of the filter silencer to the compressor housing damping can be achieved.
  • the absorber mass consists of a loose bulk material and is arranged in a corresponding container.
  • This space may be formed in a rigidly mounted tank as an additional component in the internal combustion engine and exhaust gas turbocharger system or as an integral part in a housing cavity on the turbocharger, console or engine.
  • the vibration damper is attached to a strong oscillating part of the turbocharger and rigidly connected to the engine block, console or an external attachment point.
  • the dampers must be designed for a relatively high natural frequency (10 - 100 Hz) and small vibration amplitudes (0.1 - 2 mm).
  • the vibration damper and damper can be mounted on all turbocharger housings, on the console or on external parts of the engine block. Since the temperatures at the gas inlet or gas outlet are high and the parts can be damaged, vibration dampers and silencers should be fitted to the bearing housing, compressor housing, filter silencer or on turbochargers without filter silencer on the intake manifold.
  • the filter silencer itself can also be mounted as a vibration damper, with a damping can be achieved via the connection to the compressor housing.
  • Fig. 1 shows an exhaust gas turbocharger, as it is attached to an internal combustion engine, wherein in the figure, only the outer housing parts and the connecting flanges for the leads to the engine can be seen.
  • the air for the internal combustion engine is sucked in via a filter silencer 5 and guided in the compressor housing 1 to the rotating compressor wheel.
  • the compressor wheel is attached to one end of a shaft, which is rotatably mounted in the bearing housing 4. At the other end of the shaft, the turbine wheel is attached.
  • the turbine housing comprises two parts, the gas inlet housing 2 with the supply of hot exhaust gases from the internal combustion engine, and the gas outlet housing 3 with the outlet flange for connecting the exhaust system.
  • the turbocharger is connected to the bearing housing or to a part of the turbine housing with the internal combustion engine.
  • the Exhaust gas turbocharger with a second support be supported in the region of the filter muffler in addition.
  • the internal combustion engine to a vibration damper 6, which is attached to the filter muffler of the exhaust gas turbocharger and whose mass is arranged as loose bulk material in a container.
  • a vibration damper / damper can also be mounted on another housing of the exhaust gas turbocharger or it can be integrated in the housing of the exhaust gas turbocharger or itself be a part of this housing.
  • the vibration damper with a first support on the bearing housing and with a second support on the flange connection between the compressor housing and the filter muffler be attached.
  • the additional attachment serves to connect the vibration damper / damper as stiff as possible to the turbocharger, so that the vibrations are transmitted as directly as possible to the vibration damper.
  • Fig. 1 an additional vibration damper 7 is shown, which is firmly connected to the filter muffler 5 and a corresponding support (eg console, engine block or external framework).
  • the additional vibration damper dampens the oscillating filter silencer optimally (highest amplitude position), especially when the support 8 is very stiff.
  • Fig. 2 shows a vibration damper 9 which is fixed to the bearing housing. The damping takes place via the material damping of the attachment (multi-layered material with damping intermediate layers) or through a separate vibration damper.

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

Description

Technisches GebietTechnical area

Die Erfindung bezieht sich auf das Gebiet der aufgeladenen Verbrennungsmotoren. Sie betrifft einen Abgasturbolader sowie ein System aus Verbrennungsmotor und Abgasturbolader mit einer Vorrichtung zum Reduzieren von Schwingungen.The invention relates to the field of supercharged internal combustion engines. It relates to an exhaust gas turbocharger and a system of internal combustion engine and exhaust gas turbocharger with a device for reducing vibrations.

Stand der TechnikState of the art

Systeme aus Verbrennungsmotor und Abgasturbolader haben abhängig von ihrer Aufstellungsart Struktureigenfrequenzen, die von der Zündfrequenz des Motors und/oder den Vielfachen der Nenndrehzahl des Motors angeregt werden. Liegen solche Resonanzen im Betriebsbereich des Motors, kann der Motor mit dem Abgasturbolader unzulässig stark schwingen.Internal combustion engine and exhaust gas turbocharger systems have structural natural frequencies, which are excited by the ignition frequency of the engine and / or multiples of the rated engine speed, depending on their type of installation. If such resonances are within the operating range of the engine, the engine with the exhaust gas turbocharger can vibrate to an unduly high degree.

Bei Motoren mit konstanter Drehzahl kann die Resonanz durch Verändern der Systemsteifigkeit bzw. der Struktureigenfrequenz von der Drehzahl weg geschoben werden. Auf Motoren mit variabler Drehzahl hingegen können mehrere Resonanzen im vorgesehenen Betriebsbereich liegen. Dann treten oft hohe Vibrationen auf, die zu einer Verringerung der Standzeit einzelner Bauteile oder des ganzen Systems führen können.For constant speed motors, the resonance can be shifted away from the speed by changing the system stiffness or structural natural frequency. On variable speed motors, however, multiple resonances may be within the intended operating range. Then often occur high vibrations, which can lead to a reduction in the service life of individual components or the entire system.

Um den hohen Anforderungen von Endkunden und Klassifikationsgesellschaften gerecht zu werden, müssen bestimmte Schwingungsgrenzwerte am Motorblock und am Abgasturbolader eingehalten werden. Gelingt es nicht, durch Verändern der Eigenfrequenzen die Schwingungsgrenzwerte der Hersteller oder Klassifikationsgesellschaften über den ganzen Drehzahlbereich zu unterschreiten, müssen gewisse Drehzahlbereiche des Motors für den Betrieb gesperrt werden, um Schäden zu vermeiden. Zwangsläufig ergeben sich dadurch Nachteile für den Betreiber. Bislang sind keine konkreten konstruktiven Abhilfemaßnahmen bekannt und untersucht, um die Schwingungen in einem System aus Verbrennungsmotor und Abgasturbolader wirksam zu reduzieren. Verschiedene konkrete Maßnahmen für andere Systeme lassen sich der DE 44 13 393 C1 , EP 0 214 825 A2 , EP 1 060 932 A2 , EP 1 098 069 A2 und US 6 298 963 B1 entnehmen.In order to meet the high demands of end customers and classification societies, certain vibration limits on the engine block and on the turbocharger must be complied with. If it is not possible, by changing the natural frequencies, to fall below the vibration limits of the manufacturers or classification societies over the entire speed range, certain engine speed ranges must be blocked for operation in order to avoid damage. Inevitably, this results in disadvantages for the operator. So far, no concrete constructive remedial measures are known and investigated in order to effectively reduce the vibrations in an internal combustion engine and exhaust gas turbocharger system. Different concrete Measures for other systems can be the DE 44 13 393 C1 . EP 0 214 825 A2 . EP 1 060 932 A2 . EP 1 098 069 A2 and US 6 298 963 B1 remove.

Kurze Darstellung der ErfindungBrief description of the invention

Der Erfindung liegt folglich die Aufgabe zugrunde, ein System aus Verbrennungsmotor und Abgasturbolader oder einen Abgasturbolader für ein solches System zu schaffen, in welchem der Verbrennungsmotor in dem gesamten zu Verfügung stehenden Drehzahlbereich betrieben werden kann, ohne durch dabei entstehende Schwingungen die Standzeit einzelner Bauteile oder des ganzen Systems zu verringern.The invention is therefore an object of the invention to provide a system of internal combustion engine and exhaust gas turbocharger or an exhaust gas turbocharger for such a system in which the internal combustion engine can be operated in the entire available speed range without resulting in the life of individual components or the resulting oscillations to reduce the whole system.

Erfindungsgemäß wird diese Aufgabe durch einen Abgasturbolader gemäß Anspruch 1 oder ein System aus Verbrennungsmotor und Abgasturbolader gemäß Anspruch 5 gelöst.According to the invention this object is achieved by an exhaust gas turbocharger according to claim 1 or a system of internal combustion engine and exhaust gas turbocharger according to claim 5.

Vorteilhafterweise wird der Schwingungstilger und/oder der Schwingungsdämpfer an einer exponierten, stark schwingenden Stelle des Systems befestigt. Da dort die Schwingungen am stärksten sind und damit die schwingungsreduzierenden Mittel am wirkungsvollsten eingesetzt werden können.Advantageously, the vibration damper and / or the vibration damper is attached to an exposed, strongly vibrating point of the system. Since there the vibrations are strongest and thus the vibration reducing agents can be used most effectively.

Da der Abgasturbolader in der Regel an exponierter Lage am Verbrennungsmotor befestigt ist, ist es besonders wirkungsvoll, die schwingungsreduzierenden Mittel am Abgasturbolader zu befestigen, beispielsweise am Filterschalldämpfer lufteintrittsseitig des Verdichtergehäuses.Since the exhaust gas turbocharger is usually attached to an exposed position on the internal combustion engine, it is particularly effective to attach the vibration reducing means on the exhaust gas turbocharger, for example on the filter muffler air inlet side of the compressor housing.

Weitere Vorteile ergeben sich aus den abhängigen Ansprüchen.Further advantages emerge from the dependent claims.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Im Folgenden sind anhand der Figuren verschiedene erfindungsgemäße Ausführungsformen schematisch dargestellt und näher erläutert.In the following, various embodiments of the invention are shown schematically and explained in more detail with reference to FIGS.

In allen Figuren sind gleichwirkende Elemente mit gleichen Bezugszeichen versehen.In all figures, the same elements are provided with the same reference numerals.

Es zeigen:

Fig. 1
eine Ansicht eines erfindungsgemäßen Abgasturboladers gemäß einer ersten Ausführungsform, und
Fig. 2
eine Ansicht eines erfindungsgemäßen Abgasturboladers gemäß einer zweiten Ausführungsform.
Show it:
Fig. 1
a view of an exhaust gas turbocharger according to the invention according to a first embodiment, and
Fig. 2
a view of an exhaust gas turbocharger according to the invention according to a second embodiment.

Weg zur Ausführung der ErfindungWay to carry out the invention

Durch das Anbringen eines gedämpften Schwingungstilgers oder eines Schwingungsdämpfers an exponierten Stellen, an denen die Vibrationen am stärksten sind, können die Schwingungen von Verbrennungsmotor und Abgasturbolader wirksam reduziert werden.By attaching a damped vibration absorber or a vibration damper in exposed areas where the vibrations are strongest, the vibrations of the engine and exhaust gas turbocharger can be effectively reduced.

Dabei sollte der Dämpfer oder Schwingungstilger in erster Linie in die Hauptschwingungsrichtung der Eigenformen der tiefsten Eigenfrequenzen des Motor- Turbolader-Systems wirken, d. h. in der Regel in Richtung der Turboladerachse und quer (horizontal) dazu.The damper or vibration absorber should act primarily in the main vibration direction of the eigenmodes of the lowest natural frequencies of the engine turbocharger system, d. H. usually in the direction of the turbocharger axis and transverse (horizontal) to it.

Der Turbolader ist meist auf einer Konsole über dem Motor oder an der Stirnseite des Motors in exponierter Lage befestigt. Durch diese exponierte Lage erfährt er die stärksten Vibrationen und ist deshalb für das Anbringen von Schwingungsdämpfern und Schwingungstilgern am besten geeignet.The turbocharger is usually mounted on a console above the engine or at the front of the engine in an exposed position. Through this exposed position he experiences the strongest vibrations and is therefore most suitable for the attachment of vibration dampers and vibration absorbers.

Die Masse des Schwingungstilgers beträgt rund 5 - 10% der Turboladergewichts. Auf diese Weise wird eine Ausgewogenheit geschaffen zwischen der zu erreichenden Dämpferkraft und dem Zusatzgewicht, welches der Lader mechanisch ertragen muss.The mass of the vibration absorber is around 5 - 10% of the turbocharger weight. In this way, a balance is created between the damper force to be achieved and the additional weight which the loader must endure mechanically.

Die Dämpfung erfolgt durch die dämpfenden Eigenschaften der Befestigung oder mit separatem Dämpfer. Auch können Bauteile des Turboladers als Schwingungstilger oder Schwingungsdämpfer genutzt werden. Beispielsweise kann ein abgekoppelter Filterschalldämpfer als Tilgermasse genutzt werden, während über die Befestigung des Filterschalldämpfers an dem Verdichtergehäuse eine Dämpfung erzielt werden kann.The damping is achieved by the damping properties of the attachment or with a separate damper. Also, components of the turbocharger can be used as a vibration damper or vibration. For example, a decoupled filter silencer can be used as absorber mass, while on the attachment of the filter silencer to the compressor housing damping can be achieved.

Die Tilgermasse besteht aus einem losen Schüttgut und ist in einem entsprechenden Behälter angeordnet. Dieser Raum kann in einem starr befestigten Tank als zusätzliches Bauteil im System aus Verbrennungsmotor und Abgasturbolader, oder als integraler Bestandteil in einem Gehäusehohlraum am Turbolader, der Konsole oder dem Motor ausgebildet sein.The absorber mass consists of a loose bulk material and is arranged in a corresponding container. This space may be formed in a rigidly mounted tank as an additional component in the internal combustion engine and exhaust gas turbocharger system or as an integral part in a housing cavity on the turbocharger, console or engine.

Der Schwingungsdämpfer wird an einem stark schwingenden Teil des Turboladers befestigt und mit dem Motorblock, Konsole oder einem außenstehenden Befestigungspunkt starr verbunden. Die Dämpfer müssen abhängig von der Anwendung auf eine relativ hohe Eigenfrequenz (10 - 100 Hz) und kleine Schwingungsamplituden (0,1 - 2 mm) ausgelegt sein.The vibration damper is attached to a strong oscillating part of the turbocharger and rigidly connected to the engine block, console or an external attachment point. Depending on the application, the dampers must be designed for a relatively high natural frequency (10 - 100 Hz) and small vibration amplitudes (0.1 - 2 mm).

Schwingungstilger und Dämpfer können an allen Gehäusen des Turboladers, der Konsole oder an außenliegenden Teilen des Motorblocks angebracht sein. Da am Gaseintritt oder Gasaustritt die Temperaturen hoch sind und die Teile Schaden nehmen können, sollten Schwingungsdämpfer und -tilger an Lagergehäuse, Verdichtergehäuse, Filterschalldämpfer oder bei Turboladern ohne Filterschalldämpfer am Saugstutzen angebracht werden. Der Filterschalldämpfer selbst kann auch als Schwingungstilger angebaut werden, wobei über die Verbindung zum Verdichtergehäuse eine Dämpfung erreicht werden kann.The vibration damper and damper can be mounted on all turbocharger housings, on the console or on external parts of the engine block. Since the temperatures at the gas inlet or gas outlet are high and the parts can be damaged, vibration dampers and silencers should be fitted to the bearing housing, compressor housing, filter silencer or on turbochargers without filter silencer on the intake manifold. The filter silencer itself can also be mounted as a vibration damper, with a damping can be achieved via the connection to the compressor housing.

Fig. 1 zeigt einen Abgasturbolader, wie er auf einen Verbrennungsmotor befestigt wird, wobei in der Abbildung nur die äußeren Gehäuseteile sowie die Anschlussflansche für die Zuleitungen zum Verbrennungsmotor zu sehen sind. Die Luft für den Verbrennungsmotor wird über einen Filterschalldämpfer 5 angesaugt und im Verdichtergehäuse 1 auf das rotierende Verdichterrad geführt. Das Verdichterrad ist an einem Ende einer Welle befestigt, welche im Lagergehäuse 4 drehbar gelagert ist. Am anderen Ende der Welle ist das Turbinenrad befestigt. Das Turbinengehäuse umfasst zwei Teile, das Gaseintrittsgehäuse 2 mit der Zuleitung der heißen Abgase vom Verbrennungsmotor, sowie das Gasaustrittsgehäuse 3 mit dem Auslassflansch zum Anschließen der Auspuffanlage. Je nach Art und Größe ist der Abgasturbolader am Lagergehäuse oder an einem Teil des Turbinengehäuses mit dem Verbrennungsmotor verbunden. Hilfsweise kann der Abgasturbolader mit einer zweiten Stütze, etwa im Bereich des Filterschalldämpfers zusätzlich abgestützt sein. Fig. 1 shows an exhaust gas turbocharger, as it is attached to an internal combustion engine, wherein in the figure, only the outer housing parts and the connecting flanges for the leads to the engine can be seen. The air for the internal combustion engine is sucked in via a filter silencer 5 and guided in the compressor housing 1 to the rotating compressor wheel. The compressor wheel is attached to one end of a shaft, which is rotatably mounted in the bearing housing 4. At the other end of the shaft, the turbine wheel is attached. The turbine housing comprises two parts, the gas inlet housing 2 with the supply of hot exhaust gases from the internal combustion engine, and the gas outlet housing 3 with the outlet flange for connecting the exhaust system. Depending on the type and size, the turbocharger is connected to the bearing housing or to a part of the turbine housing with the internal combustion engine. In the alternative, the Exhaust gas turbocharger with a second support, be supported in the region of the filter muffler in addition.

Erfindungsgemäß weist der Verbrennungsmotor einen Schwingungstilger 6 auf, welcher am Filterschalldämpfer des Abgasturboladers befestigt ist und dessen Masse als loses Schüttgut in einem Behälter angeordnet ist. Ein solcher Schwingungstilger/-dämpfer kann auch auf einem anderen Gehäuse des Abgasturboladers befestigt werden oder er kann im Gehäuse des Abgasturboladers integriert angeordnet oder selber ein Teil diese Gehäuses sein.According to the invention, the internal combustion engine to a vibration damper 6, which is attached to the filter muffler of the exhaust gas turbocharger and whose mass is arranged as loose bulk material in a container. Such a vibration damper / damper can also be mounted on another housing of the exhaust gas turbocharger or it can be integrated in the housing of the exhaust gas turbocharger or itself be a part of this housing.

Beispielsweise kann der Schwingungstilger mit einer ersten Abstützung am Lagergehäuse und mit einer zweiten Abstützung auf die Flanschverbindung zwischen dem Verdichtergehäuse und dem Filterschalldämpfer befestigt sein. Dabei dient die zusätzliche Befestigung dazu, den Schwingungstilger/- dämpfer so steif wie möglich mit dem Turbolader zu verbinden, damit die Schwingungen möglichst direkt auf den Schwingungstilger übertragen werden.For example, the vibration damper with a first support on the bearing housing and with a second support on the flange connection between the compressor housing and the filter muffler be attached. The additional attachment serves to connect the vibration damper / damper as stiff as possible to the turbocharger, so that the vibrations are transmitted as directly as possible to the vibration damper.

Rechts unten in Fig. 1 ist ein zusätzlicher Schwingungsdämpfer 7 dargestellt, der fest mit dem Filterschalldämpfer 5 und einer entsprechenden Auflage (z.B. Konsole, Motorblock oder externes Gerüst) verbunden ist. Der zusätzliche Schwingungsdämpfer dämpft den schwingenden Filterschalldämpfer optimal (Stelle mit höchsten Amplituden), insbesondere wenn die Abstützung 8 sehr steif ist.Right below in Fig. 1 an additional vibration damper 7 is shown, which is firmly connected to the filter muffler 5 and a corresponding support (eg console, engine block or external framework). The additional vibration damper dampens the oscillating filter silencer optimally (highest amplitude position), especially when the support 8 is very stiff.

Fig. 2 zeigt einen Schwingungstilger 9, der am Lagergehäuse befestigt ist. Die Dämpfung erfolgt über die Materialdämpfung der Befestigung (mehrschichtiges Material mit dämpfenden Zwischenschichten) oder durch einen separaten Schwingungsdämpfer. Fig. 2 shows a vibration damper 9 which is fixed to the bearing housing. The damping takes place via the material damping of the attachment (multi-layered material with damping intermediate layers) or through a separate vibration damper.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Verdichtergehäusecompressor housing
22
GaseintrittsgehäuseGas inlet casing
33
GasaustrittsgehäuseGas outlet casing
44
Lagergehäusebearing housing
55
Filterschalldämpferfilter silencer
66
Schwingungstilgervibration absorber
77
Schwingungsdämpfervibration
88th
Unterlagedocument
99
Schwingungstilgervibration absorber

Claims (7)

  1. Exhaust-gas turbocharger for the supercharging of an internal combustion engine, comprising a device for reducing vibrations, wherein the device for reducing vibrations comprises a vibration absorber (6; 9) and means (7) for damping the vibrations,
    wherein the vibration absorber (6; 9) comprises a mass composed of loose bulk material which is arranged in a corresponding container chamber.
  2. Exhaust-gas turbocharger according to Claim 1, wherein the container chamber is formed in a rigidly fastened tank as an additional component in the supercharging device.
  3. Exhaust-gas turbocharger according to Claim 1, wherein the container chamber is formed as an integral constituent part in a housing cavity on the exhaust-gas turbocharger.
  4. System composed of an internal combustion engine and of an exhaust-gas turbocharger,
    wherein the exhaust-gas turbocharger is an exhaust-gas turbocharger according to one of Claims 1 to 3.
  5. System composed of an internal combustion engine and an exhaust-gas turbocharger, comprising a device for reducing vibrations of the internal combustion engine and/or of the exhaust-gas turbocharger, wherein the device for reducing vibrations comprises at least one vibration absorber (6; 9) and means (7) for damping the vibrations,
    wherein the vibration absorber (6; 9) comprises a mass composed of loose bulk material which is arranged in a corresponding container chamber, which container chamber is formed in a rigidly fastened tank as an additional component in the system composed of internal combustion engine and exhaust-gas turbocharger, or is formed as an integral constituent part in a housing cavity on a bracket on which the exhaust-gas turbocharger is fastened over the internal combustion engine or to the end side of the internal combustion engine, or is formed on the internal combustion engine.
  6. System according to Claim 5, wherein the vibration absorber (6; 9) and/or the means (7) for damping the vibrations are fastened at an exposed point, which is subject to intense vibration, of the system.
  7. System according to one of Claims 4 to 6, wherein the vibration absorber (6; 9) and/or the means (7) for damping the vibrations act in the main direction of vibration of the eigenmodes of the lowest eigenfrequencies of the system.
EP05741982.2A 2004-06-03 2005-06-01 Reduction of vibrations in a combustion engine and turbocharger system Active EP1751400B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05741982.2A EP1751400B1 (en) 2004-06-03 2005-06-01 Reduction of vibrations in a combustion engine and turbocharger system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04405340A EP1602803A1 (en) 2004-06-03 2004-06-03 Vibration reduction device for combustion engine and turbocharger system
EP05741982.2A EP1751400B1 (en) 2004-06-03 2005-06-01 Reduction of vibrations in a combustion engine and turbocharger system
PCT/CH2005/000307 WO2005119013A1 (en) 2004-06-03 2005-06-01 Vibration surpressor

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EP1751400A1 EP1751400A1 (en) 2007-02-14
EP1751400B1 true EP1751400B1 (en) 2018-08-15

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EP04405340A Withdrawn EP1602803A1 (en) 2004-06-03 2004-06-03 Vibration reduction device for combustion engine and turbocharger system
EP05741982.2A Active EP1751400B1 (en) 2004-06-03 2005-06-01 Reduction of vibrations in a combustion engine and turbocharger system

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EP04405340A Withdrawn EP1602803A1 (en) 2004-06-03 2004-06-03 Vibration reduction device for combustion engine and turbocharger system

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US (1) US7900449B2 (en)
EP (2) EP1602803A1 (en)
JP (1) JP4829219B2 (en)
WO (1) WO2005119013A1 (en)

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Also Published As

Publication number Publication date
US7900449B2 (en) 2011-03-08
EP1751400A1 (en) 2007-02-14
JP2008501881A (en) 2008-01-24
JP4829219B2 (en) 2011-12-07
US20070151242A1 (en) 2007-07-05
WO2005119013A1 (en) 2005-12-15
EP1602803A1 (en) 2005-12-07

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