EP2592230A1 - Multi-section turbine casing for a turbo charger - Google Patents

Multi-section turbine casing for a turbo charger Download PDF

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Publication number
EP2592230A1
EP2592230A1 EP11008919.0A EP11008919A EP2592230A1 EP 2592230 A1 EP2592230 A1 EP 2592230A1 EP 11008919 A EP11008919 A EP 11008919A EP 2592230 A1 EP2592230 A1 EP 2592230A1
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EP
European Patent Office
Prior art keywords
turbocharger
parts
turbine housing
thermal insulation
insulating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11008919.0A
Other languages
German (de)
French (fr)
Other versions
EP2592230B1 (en
Inventor
Matthias Kroll
Holger Oberthür
Werner Loibl
Stefan MÜNZ
Waldemar Henke
Patric Hoecker
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Isolite GmbH
Original Assignee
Isolite GmbH
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Filing date
Publication date
Application filed by Isolite GmbH filed Critical Isolite GmbH
Priority to EP20110008919 priority Critical patent/EP2592230B1/en
Priority to ES11008919.0T priority patent/ES2470322T3/en
Publication of EP2592230A1 publication Critical patent/EP2592230A1/en
Application granted granted Critical
Publication of EP2592230B1 publication Critical patent/EP2592230B1/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
    • 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
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F01D25/14—Casings modified therefor
    • F01D25/145—Thermally insulated casings
    • 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
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/243—Flange connections; Bolting 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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/026—Scrolls for radial machines or engines
    • 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 a turbocharger for internal combustion engines according to the preamble of patent claim 1.
  • Turbocharger also known as turbocharger, short ATL, serve to increase the performance of internal combustion engines by increasing the fuel mixture throughput per cycle of the internal combustion engine.
  • Turbochargers in the prior art are made for example of temperature-resistant cast iron. This results in the problem that the turbocharger is in one piece and the compression chamber of the turbocharger is difficult to access from the outside. Any additional elements used in the turbocharger must be encapsulated / encapsulated during casting and are also difficult to access in the finished turbocharger and difficult to maintain or replace.
  • turbocharger for internal combustion engines, in which the compression chamber, so the interior of the turbocharger is easily accessible.
  • the invention provides a turbocharger for an internal combustion engine, comprising a turbine housing, wherein the turbine housing consists of at least two parts, wherein the parts are arranged with respect to a common central axis which substantially corresponds to the gas passage direction through the turbocharger.
  • the turbine housing of the turbocharger can thus consist of two halves, but it can also be three or more parts. These parts are typically arranged like a disk with respect to a common central axis.
  • the turbine housing is thus divided like a section into parts, wherein the sections are substantially perpendicular to the central axis of the turbine housing.
  • the turbocharger is easier to maintain and more accessible inside.
  • the turbocharger can be opened after a predetermined time, such as a maintenance interval or for repair purposes, and closed again after performing the maintenance or repairs.
  • two superimposed parts of the turbine housing may have smooth surfaces, such as sealing surfaces.
  • the parts can be connected together.
  • For connecting two parts can be screwed about or welded.
  • a screw can be solved relatively easily again. It is also possible that, for example, in a turbine housing that consists of four parts, two superimposed parts are bolted together and two other superimposed parts are welded together.
  • a thermal insulation can be used between two directly superimposed parts of the turbine housing.
  • the turbine housing of the turbocharger can therefore be introduced typically on its inner wall or inside a thermal insulation. Due to the thermal insulation, the gas flowing through the turbine can no longer come into direct contact with the inside of the turbocharger. The heat is no longer dissipative or lost only to a small extent. The heat of the hot exhaust gas can be used to a greater extent for heating, for example, catalysts. This can further advantages in terms of savings on fuel, reducing CO 2 emissions, so saving CO 2 , and more exhaust gas safety can be achieved.
  • the thermal insulation can be bolted to at least one of the two parts.
  • the thermal insulation is therefore interchangeable. As a result, for example, after a predetermined maintenance interval, the thermal insulation can be maintained or replaced, whereby the service life of the turbocharger can be increased.
  • the thermal insulation may include one or more layers.
  • the thermal insulation can be adjusted according to the required temperatures or temperature windows.
  • the individual layers may have different thicknesses and / or densities and / or materials and / or material mixtures.
  • the multiple layers are typically overlaid. It is also possible to have one or more layers of air between each other layers.
  • the thermal insulation may consist of a cover layer, for example a metal cover plate, and one or more underlying insulating mats and / or insulating shells.
  • the one or more layers can therefore be applied, for example, under a cover layer.
  • the cover layer is typically the innermost layer. It is also possible to provide other, for example, metallic layers between the insulating mats and / or insulating shells.
  • the thermal insulation typically takes into account the best possible flow guidance, in order to take into account not only the good insulation properties but also the good flow guidance properties.
  • the multiple layers or insulating mats and / or insulating shells may consist of a fiber fabric of mineral fibers, such as glass and / or silicate and / or ceramic fibers.
  • the insulating mats and / or insulating shells can therefore be designed as fiber mats and / or fiber shells.
  • thermal insulation can be used in the turbocharger, for example, in four parts of a turbine housing two thermal insulation, ie in each case a thermal insulation between two parts.
  • the Fig. 1 shows a sectional view through a turbocharger according to the present invention.
  • FIG. 1 a turbocharger 10 is shown in a section perpendicular to the central axis 23 of the turbocharger.
  • the gas stream of hot gas enters FIG. 1 on the right side of the turbocharger 10, as indicated by the arrow 15.
  • the compressed gas stream exits, as indicated by the arrow 13.
  • the turbocharger 10, as in FIG. 1 shown, has a turbine housing, which consists of the two parts 11A and 11B.
  • the division of the turbine housing into two parts is to be understood as purely exemplary.
  • the turbine housing may also consist of several parts. These parts may, like the parts 11A and 11B, be arranged substantially perpendicular to the central axis 23.
  • the turbocharger 10 has an interior 21.
  • the compressed gas stream exits the opening 25 on the left side of the turbocharger.
  • the two parts, so the two halves 11A and 11B of the turbine housing can lie directly on each other. They can be suitably connected, as described below on the basis of FIG. 2 is explained.
  • FIG. 12 shows a plan view of the left half 11A of the two parts / halves 11A and 11B of the turbine housing of the turbocharger 10, as in FIG FIG. 1 shown.
  • the selection of the half 11A is to be understood as merely exemplary, and the half 11B and possible further parts (not shown here) can be considered in the same way.
  • Half / part 11A as in FIG. 2
  • This is typically a smooth sealing surface that can be contacted with a corresponding sealing surface on the part 11B (not shown here), so that the two surfaces can lie substantially plane and evenly on one another, so that a good seal can be achieved.
  • Screw holes 29 are also indicated. It is understood that the number of screw holes is not fixed and may be selected according to the size and / or requirements of the turbocharger.
  • the corresponding sealing surface of the part 11 B may also have screw holes, so that the two halves 11 A and 11 B can be screwed together suitably. It is also possible to weld the two halves 11A and 11B of the turbine housing of the turbocharger 10 together.
  • FIG. 3 Again, the two parts 11A and 11B are shown, as they are already based on the FIGS. 1 and 2 have been described. Additionally is in FIG. 3 a thermal insulation 17 is shown.
  • the thermal insulation 17 is in FIG. 3 provided between the two parts 11A and 11B.
  • the thermal insulation 17 is similar in shape to the shape of the inside of the part 11A so that it can abut against the inside of the part 11A.
  • the thermal insulation may be bolted to at least one or typically both parts 11A and 11B. As a result, the thermal insulation 17 between the two halves 11A and 11B can be used and also removed again.
  • the thermal insulation 17 may be multi-layered, for example, the thermal insulation of insulating mats and / or insulating shells exist, with an overlying cover plate (not shown here).
  • the layers can each be mat-like, fabric-like or net-like.

Abstract

The turbocharger (10) has a turbine housing, which has two units (11A,11B). The units are arranged to a common central axis (23). The central axis corresponds to gas passage directions (13,15) through the turbocharger. The units of the turbine housing are screwed together. A thermal insulation is inserted between the two units of the turbine housing. The insulating mats or insulating shells are made from fiber fabric or mineral fibers, for example glass, silicate or ceramic fibers.

Description

Gebiet der ErfindungField of the invention

Die Erfindung betrifft einen Turbolader für Verbrennungsmotoren gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a turbocharger for internal combustion engines according to the preamble of patent claim 1.

Stand der TechnikState of the art

Turbolader, auch Abgasturbolader, kurz ATL, genannt, dienen der Leistungssteigerung von Verbrennungsmotoren durch Erhöhung des Treibstoffgemischdurchsatzes pro Arbeitstakt des Verbrennungsmotors.Turbocharger, also known as turbocharger, short ATL, serve to increase the performance of internal combustion engines by increasing the fuel mixture throughput per cycle of the internal combustion engine.

Turbolader im Stand der Technik werden beispielsweise aus temperaturfestem Guss hergestellt. Dabei ergibt sich das Problem, dass der Turbolader einstückig vorliegt und die Verdichtungskammer des Turboladers von außen nur schwer zugänglich ist. Eventuell in den Turbolader eingesetzte zusätzliche Elemente müssen beim Guss umgossen/umschlossen werden und sind ebenfalls beim fertigen Turbolader nur schwer zugänglich und nur schwierig zu warten oder auszuwechseln.Turbochargers in the prior art are made for example of temperature-resistant cast iron. This results in the problem that the turbocharger is in one piece and the compression chamber of the turbocharger is difficult to access from the outside. Any additional elements used in the turbocharger must be encapsulated / encapsulated during casting and are also difficult to access in the finished turbocharger and difficult to maintain or replace.

Angesichts der oben genannten Probleme und des diskutierten Stands der Technik ist es Aufgabe der vorliegenden Erfindung, einen Turbolader für Verbrennungsmotoren bereitzustellen, bei die Verdichtungskammer, also das Innere des Turboladers einfach zugänglich ist.In view of the above problems and the discussed prior art, it is an object of the present invention to provide a turbocharger for internal combustion engines, in which the compression chamber, so the interior of the turbocharger is easily accessible.

Beschreibung der ErfindungDescription of the invention

Diese Aufgabe wird einem Turbolader für Verbrennungsmotoren entsprechend des Patentanspruchs 1 gelöst.This object is achieved by a turbocharger for internal combustion engines according to patent claim 1.

Die Erfindung stellt einen Turbolader für einen Verbrennungsmotor bereit, mit einem Turbinengehäuse, wobei das Turbinengehäuse aus mindestens zwei Teilen besteht, wobei die Teile bezüglich einer gemeinsamen Mittelachse angeordnet sind, die im Wesentlichen der Gasdurchtrittsrichtung durch den Turbolader entspricht.The invention provides a turbocharger for an internal combustion engine, comprising a turbine housing, wherein the turbine housing consists of at least two parts, wherein the parts are arranged with respect to a common central axis which substantially corresponds to the gas passage direction through the turbocharger.

Das Turbinengehäuse des Turboladers kann also aus zwei Hälften bestehen, es können aber ebenso drei oder mehr Teile sein. Diese Teile sind typischerweise scheibenartig bezüglich einer gemeinsamen Mittelachse angeordnet. Das Turbinengehäuse ist also schnittartig in Teile unterteilt, wobei die Schnitte im Wesentlichen senkrecht zur Mittelachse des Turbinengehäuses liegen. Durch die Teilung des Turbinengehäuses in mehrere Teile ist der Turbolader in seinem Inneren besser wartbar und besser zugänglich. Insbesondere kann der Turbolader nach einer vorbestimmten Zeit, etwa einem Wartungsintervall oder zu Reparaturzwecken, geöffnet werden und nach Durchführung der Wartung oder der Reparaturen wieder geschlossen werden.The turbine housing of the turbocharger can thus consist of two halves, but it can also be three or more parts. These parts are typically arranged like a disk with respect to a common central axis. The turbine housing is thus divided like a section into parts, wherein the sections are substantially perpendicular to the central axis of the turbine housing. By dividing the turbine housing into several parts, the turbocharger is easier to maintain and more accessible inside. In particular, the turbocharger can be opened after a predetermined time, such as a maintenance interval or for repair purposes, and closed again after performing the maintenance or repairs.

In dem Turbolader wie oben beschrieben, können unmittelbar aufeinanderliegende Teile des Turbinengehäuses miteinander verschraubt werden.In the turbocharger as described above, immediately superposed parts of the turbine housing can be bolted together.

In dem Turbolader wie oben beschrieben können unmittelbar aufeinanderliegende Teile des Turbinengehäuses miteinander verschweißt werden.In the turbocharger as described above, parts of the turbine housing which are directly superimposed on one another can be welded together.

Jeweils zwei aufeinanderliegende Teile des Turbinengehäuses können glatte Flächen, beispielsweise Dichtflächen besitzen. Im Bereich, wo diese Dichtflächen aufeinander liegen, können die Teile miteinander verbunden werden. Zur Verbindung können jeweils zwei Teile etwa verschraubt werden oder verschweißt werden. Insbesondere kann eine Verschraubung relativ einfach wieder gelöst werden. Es ist ebenso möglich, dass beispielsweise bei einem Turbinengehäuse, dass aus vier Teilen besteht, je zwei aufeinander liegende Teile miteinander verschraubt sind und zwei weitere aufeinander liegende Teile miteinander verschweißt sind.In each case two superimposed parts of the turbine housing may have smooth surfaces, such as sealing surfaces. In the area where these sealing surfaces lie on each other, the parts can be connected together. For connecting two parts can be screwed about or welded. In particular, a screw can be solved relatively easily again. It is also possible that, for example, in a turbine housing that consists of four parts, two superimposed parts are bolted together and two other superimposed parts are welded together.

In dem Turbolader wie oben beschrieben kann zwischen zwei unmittelbar aufeinanderliegenden Teilen des Turbinengehäuses eine thermische Isolierung eingesetzt werden.In the turbocharger as described above, a thermal insulation can be used between two directly superimposed parts of the turbine housing.

In das Turbinengehäuse des Turboladers kann also typischerweise an seiner Innenwand oder Innenseite eine thermische Isolierung eingebracht werden. Durch die thermische Isolierung kann das die Turbine durchströmende Gas nicht mehr in direktem Kontakt mit der Innenseite des Turboladers kommen. Die Wärme geht nicht mehr oder nur noch zu einem geringen Teil dissipativ verloren. Die Wärme des heißen Abgases kann in größerem Maße zur Erwärmung beispielsweise von Katalysatoren eingesetzt werden. Hierdurch können weiter Vorteile in Bezug auf Einsparungen an Kraftstoff, Senkung von CO2-Emissionen, also Einsparung von CO2, sowie mehr Abgassicherheit erzielt werden.In the turbine housing of the turbocharger can therefore be introduced typically on its inner wall or inside a thermal insulation. Due to the thermal insulation, the gas flowing through the turbine can no longer come into direct contact with the inside of the turbocharger. The heat is no longer dissipative or lost only to a small extent. The heat of the hot exhaust gas can be used to a greater extent for heating, for example, catalysts. This can further advantages in terms of savings on fuel, reducing CO 2 emissions, so saving CO 2 , and more exhaust gas safety can be achieved.

In dem Turbolader wie oben beschrieben kann die thermische Isolierung mit wenigstens einem der beiden Teile verschraubt werden kann.In the turbocharger as described above, the thermal insulation can be bolted to at least one of the two parts.

Die thermische Isolierung ist damit also auswechselbar. Dadurch lässt sich beispielsweise nach einem vorbestimmten Wartungsintervall die thermische Isolierung warten oder austauschen, wodurch die Lebensdauer des Turboladers erhöht werden kann.The thermal insulation is therefore interchangeable. As a result, for example, after a predetermined maintenance interval, the thermal insulation can be maintained or replaced, whereby the service life of the turbocharger can be increased.

In dem Turbolader wie oben beschrieben kann die thermische Isolierung eine oder mehrere Schichten aufweisen.In the turbocharger as described above, the thermal insulation may include one or more layers.

Durch die mehrschichtige Isolierung kann die thermische Isolierung entsprechend den benötigte Temperaturen oder Temperaturfenstern abgestimmt werden. Dabei können die einzelnen Schichten unterschiedlichen Dicken und/oder Dichten und/oder Materialien und/oder Materialmischungen aufweisen. Die mehreren Schichten sind typischerweise übereinander aufgebracht. Es ist ebenso möglich, eine oder mehrere Luftschichten zwischen jeweils anderen Schichten zu haben.Due to the multi-layer insulation, the thermal insulation can be adjusted according to the required temperatures or temperature windows. The individual layers may have different thicknesses and / or densities and / or materials and / or material mixtures. The multiple layers are typically overlaid. It is also possible to have one or more layers of air between each other layers.

In dem Turbolader wie oben beschrieben kann die thermische Isolierung aus einer Deckschicht, beispielsweise einem metallischem Deckblech, und ein oder mehreren darunter liegenden Isoliermatten und/oder Isolierschalen bestehen.In the turbocharger as described above, the thermal insulation may consist of a cover layer, for example a metal cover plate, and one or more underlying insulating mats and / or insulating shells.

Die ein oder mehreren Schichten können also beispielsweise unter einer Deckschicht angebracht werden. Dabei ist die Deckschicht typischerweise die am weitesten innen liegende Schicht. Es ist ebenso möglich, auch weitere, beispielsweise metallische Schichten zwischen den Isoliermatten und/oder Isolierschalen vorzusehen.The one or more layers can therefore be applied, for example, under a cover layer. The cover layer is typically the innermost layer. It is also possible to provide other, for example, metallic layers between the insulating mats and / or insulating shells.

Es versteht sich, dass die thermische Isolierung typischerweise eine möglichst günstige Strömungsführung berücksichtigt, um neben den guten Isolierungseigenschaften auch die guten Strömungsführungseigenschaften zu berücksichtigen. Die mehreren Schichten oder Isoliermatten und/oder Isolierschalen können aus einem Fasergewebe aus mineralischen Fasern, beispielsweise aus Glas und/oder Silikat und/oder Keramikfasern bestehen. Die lsoliermatten und/oder Isolierschalen können also als Fasermatten und/oder Faserschalen ausgebildet sein.It is understood that the thermal insulation typically takes into account the best possible flow guidance, in order to take into account not only the good insulation properties but also the good flow guidance properties. The multiple layers or insulating mats and / or insulating shells may consist of a fiber fabric of mineral fibers, such as glass and / or silicate and / or ceramic fibers. The insulating mats and / or insulating shells can therefore be designed as fiber mats and / or fiber shells.

Es versteht sich, dass auch mehr als eine thermische Isolierung in den Turbolader eingesetzt werden können, beispielsweise bei vier Teilen eines Turbinengehäuses zwei thermische Isolierungen, also jeweils eine thermische Isolierung zwischen zwei Teilen.It is understood that more than one thermal insulation can be used in the turbocharger, for example, in four parts of a turbine housing two thermal insulation, ie in each case a thermal insulation between two parts.

Kurzbeschreibung der FigurenBrief description of the figures

Der Erfindungsgegenstand wird anhand der nachfolgenden Zeichnungen beispielhaft erläutert.The subject invention is exemplified with reference to the following drawings.

Es zeigen:

  • Fig. 1: eine Schnittzeichnung durch einen erfindungsgemäßen mehrteiligen Turbolader.
  • Fig. 2: eine Draufsicht auf einen Teil des erfindungsgemäßen Turboladers aus Figur 1.
  • Fig. 3 eine Schnittzeichnung eines erfindungsgemäßen Turboladers mit einer Isolierung.
Show it:
  • Fig. 1 : A sectional view through a multi-part turbocharger according to the invention.
  • Fig. 2 : A plan view of a part of the turbocharger according to the invention FIG. 1 ,
  • Fig. 3 a sectional view of a turbocharger according to the invention with insulation.

Detaillierte BeschreibungDetailed description

Die Fig. 1 zeigt eine Schnittzeichnung durch einen Turbolader entsprechend der vorliegenden Erfindung.The Fig. 1 shows a sectional view through a turbocharger according to the present invention.

In der Figur 1 ist ein Turbolader 10 in einem Schnitt senkrecht zur Mittelachse 23 des Turboladers gezeigt. Der Gasstrom aus heißem Gas tritt in Figur 1 auf der rechten Seite des Turboladers 10 ein, wie durch den Pfeil 15 angedeutet. Auf der linken Seite des Turboladers 10 tritt der verdichtete Gasstrom aus, wie durch den Pfeil 13 angedeutet ist.In the FIG. 1 a turbocharger 10 is shown in a section perpendicular to the central axis 23 of the turbocharger. The gas stream of hot gas enters FIG. 1 on the right side of the turbocharger 10, as indicated by the arrow 15. On the left side of the turbocharger 10, the compressed gas stream exits, as indicated by the arrow 13.

Der Turbolader 10, wie in Figur 1 dargestellt, besitzt ein Turbinengehäuse, das aus den beiden Teilen 11A und 11B besteht. Die Teilung des Turbinengehäuses in zwei Teile ist rein beispielhaft zu verstehen. Das Turbinengehäuse kann ebenso aus mehreren Teilen bestehen. Diese Teile können, ähnlich wie die Teile 11A und 11B im Wesentlichen senkrecht zur Mittelachse 23 angeordnet sein.The turbocharger 10, as in FIG. 1 shown, has a turbine housing, which consists of the two parts 11A and 11B. The division of the turbine housing into two parts is to be understood as purely exemplary. The turbine housing may also consist of several parts. These parts may, like the parts 11A and 11B, be arranged substantially perpendicular to the central axis 23.

Der Turbolader 10 weist einen Innenraum 21 auf. Der verdichtete Gasstrom tritt auf der linken Seite des Turboladers aus der Öffnung 25 aus. Mit dem Bezugszeichen 18 ist die Teilungslinie, hier gestrichelt gezeichnet, zwischen den beiden Teilen 11A und 11 B des Turbinengehäuses angedeutet. Die beiden Teile, also die beiden Hälften 11A und 11 B des Turbinengehäuses können liegen direkt aufeinander. Sie können geeignet verbunden sein, wie nachfolgend anhand der Figur 2 erläutert wird.The turbocharger 10 has an interior 21. The compressed gas stream exits the opening 25 on the left side of the turbocharger. The reference numeral 18, the division line, shown here by dashed lines, between the two parts 11A and 11 B of the turbine housing indicated. The two parts, so the two halves 11A and 11B of the turbine housing can lie directly on each other. They can be suitably connected, as described below on the basis of FIG. 2 is explained.

Die Figur 2 zeigt eine Draufsicht auf die linke Hälfte 11A der beiden Teile / Hälften 11A und 11 B des Turbinengehäuses des Turboladers 10, wie in Figur 1 dargestellt. Die Auswahl der Hälfte 11A ist rein beispielhaft zu verstehen und die Hälfte 11 B sowie mögliche weiter Teile (hier nicht gezeigt) können genauso betrachtet werden.The FIG. 2 FIG. 12 shows a plan view of the left half 11A of the two parts / halves 11A and 11B of the turbine housing of the turbocharger 10, as in FIG FIG. 1 shown. The selection of the half 11A is to be understood as merely exemplary, and the half 11B and possible further parts (not shown here) can be considered in the same way.

Die Hälfte / das Teil 11A, wie in Figur 2 dargestellt, besitzt eine Dichtfläche 27. Dabei handelt es sich typischerweise um eine glatte Dichtfläche, die sich mit einer entsprechenden Dichtfläche am Teil 11B (hier nicht gezeigt) kontaktieren lässt, so dass die beiden Flächen im Wesentlichen plan und ebenmäßig aufeinander liegen können, so dass eine gute Dichtung erzielt werden kann. In der Figur 2 sind ferner Schraubenlöcher 29 angedeutet. Es versteht sich, dass die Zahl der Schraubenlöcher nicht festgelegt ist und entsprechend der Größe und/oder den Anforderungen an den Turbolader gewählt werden können. Die entsprechende Dichtfläche des Teils 11 B (hier nicht gezeigt) kann ebenfalls Schraubenlöcher aufweisen, so dass die beiden Hälften 11A und 11B geeignet miteinander verschraubt werden können. Ebenso ist es möglich, die beiden Hälften 11A und 11 B des Turbinengehäuses des Turboladers 10 miteinander zu verschweißen.Half / part 11A, as in FIG. 2 This is typically a smooth sealing surface that can be contacted with a corresponding sealing surface on the part 11B (not shown here), so that the two surfaces can lie substantially plane and evenly on one another, so that a good seal can be achieved. In the FIG. 2 Screw holes 29 are also indicated. It is understood that the number of screw holes is not fixed and may be selected according to the size and / or requirements of the turbocharger. The corresponding sealing surface of the part 11 B (not shown here) may also have screw holes, so that the two halves 11 A and 11 B can be screwed together suitably. It is also possible to weld the two halves 11A and 11B of the turbine housing of the turbocharger 10 together.

In Figur 3 sind wiederum die beiden Teile 11A und 11B gezeigt, wie sie bereits anhand der Figuren 1 und 2 beschrieben wurden. Zusätzlich ist in Figur 3 eine thermische Isolierung 17 gezeigt. Die thermische Isolierung 17 ist in Figur 3 zwischen den beiden Teilen 11A und 11B vorgesehen. Die thermische Isolierung 17 ist in ihrer Form der Form der Innenseite des Teils 11A ähnlich, so dass sie an der Innenseite des Teils 11A anliegen kann. Die thermische Isolierung kann mit wenigstens einer oder typischerweise mit beiden Teilen 11A und 11 B verschraubt werden. Dadurch kann die thermische Isolierung 17 zwischen die beiden Hälften 11A und 11B eingesetzt werden und auch wieder entnommen werden. Die thermische Isolierung 17 kann mehrschichtig vorgesehen sein, beispielsweise kann die thermische Isolierung aus Isoliermatten und/oder Isolierschalen bestehen, mit einem darüber liegenden Deckblech (hier nicht gezeigt). Die Schichten können jeweils mattenartig, gewebeartig oder netzartig ausgebildet sein.In FIG. 3 Again, the two parts 11A and 11B are shown, as they are already based on the FIGS. 1 and 2 have been described. Additionally is in FIG. 3 a thermal insulation 17 is shown. The thermal insulation 17 is in FIG. 3 provided between the two parts 11A and 11B. The thermal insulation 17 is similar in shape to the shape of the inside of the part 11A so that it can abut against the inside of the part 11A. The thermal insulation may be bolted to at least one or typically both parts 11A and 11B. As a result, the thermal insulation 17 between the two halves 11A and 11B can be used and also removed again. The thermal insulation 17 may be multi-layered, for example, the thermal insulation of insulating mats and / or insulating shells exist, with an overlying cover plate (not shown here). The layers can each be mat-like, fabric-like or net-like.

Es versteht sich, dass in den zuvor beschriebenen Ausführungsbeispielen genannte Merkmale sich nicht auf die speziell in den Figuren gezeigten Kombinationen beschränken, sondern auch in beliebigen anderen Kombinationen möglich sein können.It is understood that in the embodiments described above mentioned features are not limited to the combinations shown specifically in the figures, but may also be possible in any other combinations.

Claims (8)

Turbolader (10 für einen Verbrennungsmotor, mit einem Turbinengehäuse (11A, 11B),
dadurch gekennzeichnet, dass
das Turbinengehäuse (11A, 11 B) aus mindestens zwei Teilen (11A, 11B) besteht, wobei die Teile (11A, 11 B) bezüglich einer gemeinsamen Mittelachse (23) angeordnet sind, die im Wesentlichen der Gasdurchtrittsrichtung (13, 15) durch den Turbolader (10) entspricht.Turbocharger (10 for an internal combustion engine, with a turbine housing (11A, 11B),
characterized in that
the turbine housing (11A, 11B) consists of at least two parts (11A, 11B), wherein the parts (11A, 11B) are arranged with respect to a common central axis (23) substantially passing through the gas passage direction (13, 15) Turbocharger (10) corresponds. Turbolader (10) nach Anspruch 1, wobei unmittelbar aufeinanderliegende Teile (11A, 11B) des Turbinengehäuses miteinander verschraubt werden können.Turbocharger (10) according to claim 1, wherein directly superposed parts (11A, 11B) of the turbine housing can be screwed together. Turbolader (10) nach wenigstens einem der Ansprüche 1 oder 2, wobei unmittelbar aufeinanderliegende Teile (11A, 11B) des Turbinengehäuses miteinander verschweißt werden können.Turbocharger (10) according to at least one of claims 1 or 2, wherein directly superposed parts (11A, 11B) of the turbine housing can be welded together. Turbolader (10) nach wenigstens einem der Ansprüche 1 - 3, wobei zwischen zwei unmittelbar aufeinanderliegenden Teilen (11A, 11B) des Turbinengehäuses eine thermische Isolierung (17) eingesetzt ist.Turbocharger (10) according to at least one of claims 1-3, wherein between two directly superimposed parts (11A, 11B) of the turbine housing, a thermal insulation (17) is inserted. Turbolader (10) nach Anspruch 4, wobei die thermische Isolierung (17) mit wenigstens einem der beiden Teile (11A, 11B) verschraubt ist.A turbocharger (10) according to claim 4, wherein the thermal insulation (17) is bolted to at least one of the two parts (11A, 11B). Turbolader (10) nach wenigstens einem der Ansprüche 4 oder 5, wobei die Isolierung (17) ein oder mehrere Schichten aufweist.Turbocharger (10) according to at least one of claims 4 or 5, wherein the insulation (17) comprises one or more layers. Turbolader (10) nach wenigstens einem der Ansprüche 4 - 6, wobei die Isolierung (17) aus einer Deckschicht, beispielsweise einem metallischem Deckblech, und ein oder mehreren darunter liegenden Isoliermatten und/oder Isolierschalen besteht.Turbocharger (10) according to at least one of claims 4-6, wherein the insulation (17) consists of a cover layer, for example a metallic cover plate, and one or more underlying insulating mats and / or insulating shells. Turbolader (10) nach Anspruch 7, wobei die Isoliermatten und/oder Isolierschalen aus einem Fasergewebe aus mineralischen Fasern, beispielsweise aus Glas und/oder Silikat und/oder Keramikfasern bestehen.Turbocharger (10) according to claim 7, wherein the insulating mats and / or insulating shells made of a fiber fabric of mineral fibers, for example of glass and / or silicate and / or ceramic fibers.
EP20110008919 2011-11-09 2011-11-09 Multi-section turbine casing for a turbo charger Active EP2592230B1 (en)

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EP20110008919 EP2592230B1 (en) 2011-11-09 2011-11-09 Multi-section turbine casing for a turbo charger
ES11008919.0T ES2470322T3 (en) 2011-11-09 2011-11-09 Multi-part turbine housing for a turbocharger

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Application Number Priority Date Filing Date Title
EP20110008919 EP2592230B1 (en) 2011-11-09 2011-11-09 Multi-section turbine casing for a turbo charger

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EP2592230A1 true EP2592230A1 (en) 2013-05-15
EP2592230B1 EP2592230B1 (en) 2014-05-07

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9810238B2 (en) 2015-03-09 2017-11-07 Caterpillar Inc. Turbocharger with turbine shroud

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7627763U1 (en) * 1976-09-04 1977-12-29 Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen EXHAUST TURBOCHARGER
GB2186328A (en) * 1986-02-11 1987-08-12 Ishikawajima Harima Heavy Ind Turbine housings for turbochargers
EP1357278A2 (en) * 2002-04-25 2003-10-29 Benteler Automobiltechnik GmbH & Co. KG Exhaust gas turbine for a turbocharger
EP1795711A2 (en) * 2004-05-18 2007-06-13 Forschungszentrum Jülich Gmbh Exhaust gas turbocharger
DE102009007734A1 (en) * 2009-02-05 2010-08-12 Daimler Ag Turbine housing i.e. two-vaned turbine housing, for exhaust-gas turbocharger of drive unit, has spiral duct including inner part via which exhaust gas flows, and thermally insulating opening formed between outer shell of duct and inner part

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7627763U1 (en) * 1976-09-04 1977-12-29 Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen EXHAUST TURBOCHARGER
GB2186328A (en) * 1986-02-11 1987-08-12 Ishikawajima Harima Heavy Ind Turbine housings for turbochargers
EP1357278A2 (en) * 2002-04-25 2003-10-29 Benteler Automobiltechnik GmbH & Co. KG Exhaust gas turbine for a turbocharger
EP1795711A2 (en) * 2004-05-18 2007-06-13 Forschungszentrum Jülich Gmbh Exhaust gas turbocharger
DE102009007734A1 (en) * 2009-02-05 2010-08-12 Daimler Ag Turbine housing i.e. two-vaned turbine housing, for exhaust-gas turbocharger of drive unit, has spiral duct including inner part via which exhaust gas flows, and thermally insulating opening formed between outer shell of duct and inner part

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ES2470322T3 (en) 2014-06-23
EP2592230B1 (en) 2014-05-07

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