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WO2008055717A1 - Housing connection of an exhaust gas turbocharger - Google Patents

Housing connection of an exhaust gas turbocharger Download PDF

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Publication number
WO2008055717A1
WO2008055717A1 PCT/EP2007/055098 EP2007055098W WO2008055717A1 WO 2008055717 A1 WO2008055717 A1 WO 2008055717A1 EP 2007055098 W EP2007055098 W EP 2007055098W WO 2008055717 A1 WO2008055717 A1 WO 2008055717A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
compressor
fastening means
gas outlet
exhaust gas
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.)
Ceased
Application number
PCT/EP2007/055098
Other languages
German (de)
French (fr)
Inventor
Peter Neuenschwander
Zhanjun Hou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Accelleron Industries AG
Original Assignee
ABB Turbo Systems AG
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 ABB Turbo Systems AG filed Critical ABB Turbo Systems AG
Publication of WO2008055717A1 publication Critical patent/WO2008055717A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • 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
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
    • F01D21/045—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position special arrangements in stators or in rotors dealing with breaking-off of part of rotor
    • 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
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/30—Retaining components in desired mutual position
    • F05B2260/301—Retaining bolts or nuts
    • 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 exhaust gas turbochargers for supercharged internal combustion engines. It relates to a housing connection between the compressor housing and the gas outlet housing of such an exhaust gas turbocharger.
  • Ver Whyrradberstens With increasing demand on the exhaust gas turbocharger in terms of compressor pressure conditions and the risk of Ver Whyrradberstens has increased due to the immense centrifugal forces.
  • a Ver Whyrradbersten represents for the people and objects located in the vicinity of the turbocharger a significant risk, since the fragments of the compressor wheel can penetrate the outer walls of the exhaust gas turbocharger with their large kinetic energy. Flying debris can be fatal to humans and cause considerable damage to neighboring facilities.
  • the compressor wheel When bursting the centrifugal compressor, however, the compressor wheel acts like a wedge between the compressor diffuser and the insert wall. As a result, a large force is generated not only in the radial direction but also in the axial direction. This axial force can be too high loads for the screw connections from the compressor housing to
  • Gas outlet housing or designed to the bearing housing in the prior art as a rigid, solid compound, such as in DE 100 50 931, DE 101 07 807 or DE
  • the object of the invention is to make compressor housing safer in the event of a bursting compressor wheel.
  • the screws are as long as possible, as they can store more energy and reduce the force peaks in all affected turbocharger parts thanks to a flatter spring characteristic.
  • the fastening means is optionally arranged in the interior of the bearing housing, and the compressor housing is connected directly to the gas outlet housing of the turbine.
  • the fastening means may be arranged on the compressor side in a housing passage open towards the compressor side, for example a bore or a slot, so that the fastening takes place during assembly of the compressor housing on the bearing housing through the flow channel of the compressor.
  • connection may optionally comprise further housing parts, such as a guide, both on the compressor side, as well as on the turbine side.
  • FIG. 1 is a schematic representation of an exhaust gas turbocharger in the region of the inventive housing connection between the compressor housing and the turbine housing,
  • Fig. 3 shows an exhaust gas turbocharger according to the prior art with a conventional housing connection between the compressor housing and the turbine housing.
  • FIG. 3 shows an exhaust gas turbocharger according to the prior art.
  • the figure corresponds to the input mentioned Figure 9a of the CIMAC Paper no. 133, CIMAC Congress 2004, Kyoto.
  • Such an exhaust gas turbocharger comprises a compressor housing 1, in which the compressor wheel 6 is arranged, and a turbine housing 2, in which the turbine wheel is arranged.
  • the flow direction of the air in the compressor or the exhaust gas in the turbine is indicated by arrows.
  • a bearing housing 3 is arranged, in which the shaft is rotatably mounted and to which compressor housing 1 and turbine housing 2 are fixed.
  • the compressor housing and the turbine housing is held together with circumferentially spaced, long, thick screws 5.
  • Fig. 1 shows an embodiment of the inventive compound the compressor housing 1 and the gas outlet housing 2 by means of fastening means 5, wherein the fastening means 5 connect the compressor housing 1 and the gas outlet housing 2 each directly.
  • fastening means 5 a plurality of fastening pins or screws arranged distributed along the circumference are advantageously provided, which according to the invention are designed as expansion screws or as expansion bolts fastened with nuts.
  • a Dehnschraube or a Dehnbolzen characterized by the fact that they by a taper of the shaft 53 to just below the Thread core diameter in the connecting direction are stretchable and therefore loads can be absorbed elastically.
  • bolt threaded portions 51 and 52 are formed on both sides of the tapered shaft, with which on the one hand, the bolt 5 can be screwed in the turbine housing and on the other hand a nut for mounting the compressor housing can be screwed. With an expansion screw with attached screw head eliminates the thread for the mother.
  • the fastening means of the inventive connection between the compressor housing and the gas outlet housing are guided according to the invention by bushings in the bearing housing.
  • the fastening means can be made longer in the axial direction than if they were arranged radially outside the housing between the housing parts.
  • expansion bolts and expansion bolts also conventional screws, screws or long threaded rods or threaded bolts could be used in such a long connections, which can also absorb more energy because of the axial length.
  • additional housing parts such as, for example, a diffuser 7 on the compressor side or a hood 8 or a diffuser on the turbine side, can also be attached.
  • the fastening means are guided by additional openings in the other housing parts.
  • the assembly takes place in the illustrated embodiment of the compressor side.
  • the compressor housing with the fastening means on the bearing housing, or screwed behind the gas outlet housing is screwed.
  • the area around the fastening means is optionally covered by means of a cover plate 4 with respect to the flow channel.
  • a cover plate As a cover plate, a separate component can be used, or if this is not attached, the diffuser 7 can serve as a cover to the flow channel.
  • compressor housing and gas outlet housing can also be done from the turbine side.
  • fastening means on the turbine side, in the gas outlet housing.
  • the fasteners can be separated from the flow channel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

In order to be able to safely absorb the energy in the event of a punctured compressor wheel of an exhaust gas turbocharger, it is advantageous if the screws are as long as possible and embodied as anti-fatigue screws, thereby being able to store more energy and reduce the force peaks in all of the related turbocharger parts due to a more even spring characteristic. The aim of the invention is to provide a fixing connection which is as long as possible. To this end, the screws (5) are arranged inside the bearing housing (3), and the compressor housing (1) is directly connected to the gas outlet housing (2) of the turbine.

Description

GEHÄUS EVERB INDUNG EINES ABGASTURBOLADERS HOUSING EVERB INDUNG OF AN EXHAUST BURGLAR

B E S C H R E I B U N GDESCRIPTION

Technisches GebietTechnical area

Die Erfindung bezieht sich auf das Gebiet der Abgasturbolader für aufgeladene Brennkraftmaschinen. Sie betrifft eine Gehäuseverbindung zwischen dem Verdichtergehäuse und dem Gasaustrittsgehäuse eines solchen Abgasturboladers.The invention relates to the field of exhaust gas turbochargers for supercharged internal combustion engines. It relates to a housing connection between the compressor housing and the gas outlet housing of such an exhaust gas turbocharger.

Stand der TechnikState of the art

„Meeting the requirements of modern diesel & gas engines: The new TPL..-C turbocharger generation", Dr. Dirk Wunderwald, et al, CIMAC Paper No. 133, CIMAC Congress 2004, Kyoto zeigt auf Seite 7 in den Figuren 9a und 9b zwei gängige Möglichkeiten, wie bei Abgasturboladern das Verdichtergehäuse mit dem Gasaustrittsgehäuse der Turbine verbunden sein kann. In der ersten Abbildung, Figure 9a, sind die beiden Gehäuseteile über radial aussenliegende Schrauben miteinander verschraubt. In der zweiten Abbildung, Figure 9b, sind Verdichtergehäuse und Gasaustrittsgehäuse je separat mit dem Lagergehäuse verschraubt. Ebenfalls je separat mit dem Lagergehäuse verschraubt sind Verdichtergehäuse und Gasaustrittsgehäuse bei der in DE 100 50 931 offenbarten Ausführungsform.Dr. Dirk Wunderwald, et al., CIMAC Paper No. 133, CIMAC Congress 2004, Kyoto, shows on page 7 in Figures 9a and "Meeting the requirements of modern diesel & gas engines: The new TPL ..- C turbocharger generation" In the first figure, Figure 9a, the two housing parts are bolted together by means of radially outward-lying screws Each separately bolted to the bearing housing are also separately bolted to the bearing housing compressor housing and gas outlet housing in the disclosed in DE 100 50 931 embodiment.

Mit zunehmender Anforderung an den Abgasturbolader hinsichtlich der Verdichter- Druckverhältnisse ist auch die Gefahr des Verdichterradberstens infolge der immensen Fliehkräfte gestiegen. Ein Verdichterradbersten stellt für die sich in der Umgebung des Turboladers befindlichen Menschen und Gegenstände eine erhebliche Gefahr dar, da die Bruchstücke des Verdichterrades mit ihrer grossen kinetischen Energie die Aussenwände des Abgasturboladers durchschlagen können. Herumfliegende Bruchstücke können für Menschen tödlich sein und an benachbarten Anlagen erheblichen Schaden anrichten.With increasing demand on the exhaust gas turbocharger in terms of compressor pressure conditions and the risk of Verdichterradberstens has increased due to the immense centrifugal forces. A Verdichterradbersten represents for the people and objects located in the vicinity of the turbocharger a significant risk, since the fragments of the compressor wheel can penetrate the outer walls of the exhaust gas turbocharger with their large kinetic energy. Flying debris can be fatal to humans and cause considerable damage to neighboring facilities.

Um das Durchschlagen der Aussenwände des Turboladers durch in radialer Richtung weggeschleuderten Bruchstücke zu verhindern, sind verschiedene Vorschläge gemacht worden, z.B. grossere Wanddicke für die das Verdichterrad radial nach aussen umgebenden Gehäuseteile.In order to prevent the penetration of the outer walls of the turbocharger by fragments thrown away in the radial direction, various proposals have been made have, for example, greater wall thickness for the compressor radially outwardly surrounding housing parts.

Beim Bersten des Radialverdichters wirkt das Verdichterrad aber wie ein Keil zwischen dem Verdichterdiffusor und der Einsatzwand. Dadurch wird nicht nur in radialer Richtung, sondern auch in axialer Richtung eine grosse Kraft erzeugt. Diese axiale Kraft kann zu hohen Belastungen für die Verschraubungen vom Verdichtergehäuse zumWhen bursting the centrifugal compressor, however, the compressor wheel acts like a wedge between the compressor diffuser and the insert wall. As a result, a large force is generated not only in the radial direction but also in the axial direction. This axial force can be too high loads for the screw connections from the compressor housing to

Gasaustrittsgehäuse, bzw. zum Lagergehäuse führen. Um diesen hohen Belastungen nicht nachzugeben, sind die Verschraubungen vom Verdichtergehäuse zumLead the gas outlet housing or to the bearing housing. In order not to give in to these high loads, the screw connections from the compressor housing to

Gasaustrittsgehäuse, bzw. zum Lagergehäuse im Stand der Technik als starre, feste Verbindung ausgeführt, wie etwa in der DE 100 50 931 , der DE 101 07 807 oder der DEGas outlet housing, or designed to the bearing housing in the prior art as a rigid, solid compound, such as in DE 100 50 931, DE 101 07 807 or DE

10 2004 027 594 ausgeführt.10 2004 027 594 executed.

Kurze Darstellung der ErfindungBrief description of the invention

Die Aufgabe der Erfindung liegt darin, Verdichtergehäuse für den Fall eines berstenden Verdichterrades sicherer zu machen. Um die Energie beim Bersten des Verdichterrades absorbieren zu können, ist es günstig, wenn die Schrauben möglichst lang sind, da sie dadurch mehr Energie speichern können und dank einer flacheren Federkennlinie die Kraftspitzen in allen betroffenen Turboladerteilen reduzieren.The object of the invention is to make compressor housing safer in the event of a bursting compressor wheel. In order to absorb the energy when bursting the compressor wheel, it is advantageous if the screws are as long as possible, as they can store more energy and reduce the force peaks in all affected turbocharger parts thanks to a flatter spring characteristic.

Erfindungsgemäss wird dies erreicht, indem die radial aussen liegenden Befestigungen von Verdichtergehäuse und Gasaustrittsgehäuse mit dehnbaren Befestigungsmitteln, insbesondere Dehnschrauben oder Dehnbolzen.According to the invention this is achieved by the radially outwardly located fasteners of the compressor housing and gas outlet housing with expandable fastening means, in particular expansion screws or expansion bolts.

Um eine möglichst lange Befestigungsverbindung zu ermöglichen, wird das Befestigungsmittel optional im Innern des Lagergehäuses angeordnet, und das Verdichtergehäuse direkt mit dem Gasaustrittsgehäuse der Turbine verbunden. Dabei kann das Befestigungsmittel verdichterseitig in einer zur Verdichterseite hin offenen Gehäusedurchführung, beispielsweise einer Bohrung oder einem Schlitz, angeordnet sein, so dass die Befestigung bei der Montage des Verdichtergehäuses am Lagergehäuse durch den Strömungskanal des Verdichter erfolgt.In order to allow the longest possible fastening connection, the fastening means is optionally arranged in the interior of the bearing housing, and the compressor housing is connected directly to the gas outlet housing of the turbine. In this case, the fastening means may be arranged on the compressor side in a housing passage open towards the compressor side, for example a bore or a slot, so that the fastening takes place during assembly of the compressor housing on the bearing housing through the flow channel of the compressor.

Die Verbindung kann optional weitere Gehäuseteile, wie etwa eine Leitvorrichtung umfassen, und zwar sowohl auf der Verdichterseite, wie auch auf der Turbinenseite. Kurze Beschreibung der ZeichnungenThe connection may optionally comprise further housing parts, such as a guide, both on the compressor side, as well as on the turbine side. Brief description of the drawings

Nachfolgend sind anhand der Zeichnungen Ausführungsformen der erfindungsgemässen Gehäuseverbindung beschrieben. Hierbei zeigtEmbodiments of the inventive housing connection will be described below with reference to the drawings. This shows

Fig. 1 eine schematische Darstellung eines Abgasturboladers im Bereich der erfindungsgemässen Gehäuseverbindung zwischen dem Verdichtergehäuse und dem Turbinengehäuse,1 is a schematic representation of an exhaust gas turbocharger in the region of the inventive housing connection between the compressor housing and the turbine housing,

Fig. 2 ein Befestigungsmittel einer erfindungsgemässen Gehäuseverbindung, und2 shows a fastening means of a housing connection according to the invention, and

Fig. 3 einen Abgasturbolader gemäss dem Stand der Technik mit einer herkömmlichen Gehäuseverbindung zwischen dem Verdichtergehäuse und dem Turbinengehäuse.Fig. 3 shows an exhaust gas turbocharger according to the prior art with a conventional housing connection between the compressor housing and the turbine housing.

Weg zur Ausführung der ErfindungWay to carry out the invention

Fig. 3 zeigt einen Abgasturbolader gemäss dem Stand der Technik. Die Abbildung entspricht der Eingangs erwähnten Figur 9a des CIMAC Paper No. 133, CIMAC Congress 2004, Kyoto. Ein solcher Abgasturbolader umfasst ein Verdichtergehäuse 1 , in welchem das Verdichterrad 6 angeordnet ist, sowie ein Turbinengehäuse 2, in welchem das Turbinenrad angeordnet ist. Die Strömungsrichtung der Luft im Verdichter bzw. des Abgases in der Turbine ist mit Pfeilen angedeutet. Zwischen Verdichter und Turbine ist ein Lagergehäuse 3 angeordnet, in welchem die Welle drehbar gelagert ist und an welchem Verdichtergehäuse 1 und Turbinengehäuse 2 befestigt sind. In der abgebildeten Ausführungsform wird das Verdichtergehäuse und das Turbinengehäuse mit entlang dem Umfang verteilt angeordneten, langen, dicken Schrauben 5 zusammengehalten.Fig. 3 shows an exhaust gas turbocharger according to the prior art. The figure corresponds to the input mentioned Figure 9a of the CIMAC Paper no. 133, CIMAC Congress 2004, Kyoto. Such an exhaust gas turbocharger comprises a compressor housing 1, in which the compressor wheel 6 is arranged, and a turbine housing 2, in which the turbine wheel is arranged. The flow direction of the air in the compressor or the exhaust gas in the turbine is indicated by arrows. Between compressor and turbine, a bearing housing 3 is arranged, in which the shaft is rotatably mounted and to which compressor housing 1 and turbine housing 2 are fixed. In the illustrated embodiment, the compressor housing and the turbine housing is held together with circumferentially spaced, long, thick screws 5.

Fig. 1 zeigt eine Ausführungsform der erfindungsgemässen Verbindung dem Verdichtergehäuse 1 und dem Gasaustrittsgehäuse 2 mittels Befestigungsmittel 5, wobei die Befestigungsmittel 5 das Verdichtergehäuse 1 und das Gasaustrittsgehäuse 2 jeweils direkt miteinander verbinden. Als Befestigungsmittel 5 sind vorteilhafterweise mehrere, entlang dem Umfang verteilt angeordnete Befestigungsstifte oder Schrauben vorgesehen, welche erfindungsgemäss als Dehnschraube oder als mit Muttern befestigte Dehnbolzen ausgebildet sind. Wie in Fig. 2 dargestellt, zeichnet sich eine Dehnschraube oder ein Dehnbolzen dadurch aus, dass sie durch eine Verjüngung des Schaftes 53 bis knapp unter den Gewindekerndurchmesser in Verbindungsrichtung dehnbar sind und daher Belastungen elastisch aufgenommen werden können. Beim dargestellten Bolzen sind beidseitig des verjüngten Schafts Gewindeteile 51 und 52 ausgebildet, mit welchen einerseits der Bolzen 5 im Turbinengehäuse festgeschraubt werden kann und auf die andererseits eine Mutter zur Befestigung des Verdichtergehäuses aufgeschraubt werden kann. Bei einer Dehnschraube mit aufgesetztem Schraubenkopf entfällt das Gewinde für die Mutter.Fig. 1 shows an embodiment of the inventive compound the compressor housing 1 and the gas outlet housing 2 by means of fastening means 5, wherein the fastening means 5 connect the compressor housing 1 and the gas outlet housing 2 each directly. As fastening means 5, a plurality of fastening pins or screws arranged distributed along the circumference are advantageously provided, which according to the invention are designed as expansion screws or as expansion bolts fastened with nuts. As shown in Fig. 2, a Dehnschraube or a Dehnbolzen characterized by the fact that they by a taper of the shaft 53 to just below the Thread core diameter in the connecting direction are stretchable and therefore loads can be absorbed elastically. In the illustrated bolt threaded portions 51 and 52 are formed on both sides of the tapered shaft, with which on the one hand, the bolt 5 can be screwed in the turbine housing and on the other hand a nut for mounting the compressor housing can be screwed. With an expansion screw with attached screw head eliminates the thread for the mother.

Die Befestigungsmittel der erfindungsgemässen Verbindung zwischen Verdichtergehäuse und Gasaustrittsgehäuse sind erfindungsgemäss durch Durchführungen im Lagergehäuse geführt. Dadurch können die Befestigungsmittel in axialer Richtung länger ausgebildet werden, als wenn sie radial ausserhalb des Gehäuses zwischen den Gehäuseteilen angeordnet würden. Neben Dehnschrauben und Dehnbolzen könnten bei solch langen Verbindungen auch herkömmliche Schrauben, Schaftschrauben oder langen Gewindestangen oder Gewindebolzen eingesetzt werden, die ja aufgrund der axialen Länge auch mehr Energie aufnehmen können.The fastening means of the inventive connection between the compressor housing and the gas outlet housing are guided according to the invention by bushings in the bearing housing. As a result, the fastening means can be made longer in the axial direction than if they were arranged radially outside the housing between the housing parts. In addition to expansion bolts and expansion bolts also conventional screws, screws or long threaded rods or threaded bolts could be used in such a long connections, which can also absorb more energy because of the axial length.

Bei der innenliegenden Befestigung können zusätzlich weitere Gehäuseteile wie zum Beispiel verdichterseitig ein Diffusor 7 oder turbinenseitig eine Haube 8 oder ein Diffusor mitbefestigt werden. Dabei werden die Befestigungsmittel durch zusätzliche Öffnungen in den weiteren Gehäuseteilen geführt.In the case of internal fastening, additional housing parts, such as, for example, a diffuser 7 on the compressor side or a hood 8 or a diffuser on the turbine side, can also be attached. The fastening means are guided by additional openings in the other housing parts.

Die Montage erfolgt in der dargestellten Ausführungsform von der Verdichterseite her. Dabei wird das Verdichtergehäuse mit den Befestigungsmitteln am Lagergehäuse, bzw. dem dahinter angeordneten Gasaustrittsgehäuse festgeschraubt. Anschliessend wird optional der Bereich um die Befestigungsmittel mittels einer Abdeckplatte 4 gegenüber dem Strömungskanal abgedeckt. Als Abdeckplatte kann ein separates Bauteil verwendet werden, oder, falls dieser nicht mitbefestigt ist, kann der Diffusor 7 als Abdeckung zum Strömungskanal hin dienen.The assembly takes place in the illustrated embodiment of the compressor side. In this case, the compressor housing with the fastening means on the bearing housing, or screwed behind the gas outlet housing is screwed. Subsequently, the area around the fastening means is optionally covered by means of a cover plate 4 with respect to the flow channel. As a cover plate, a separate component can be used, or if this is not attached, the diffuser 7 can serve as a cover to the flow channel.

Die Befestigung von Verdichtergehäuse und Gasaustrittsgehäuse kann auch von der Turbinenseite her erfolgen. In diesem, in den Figuren nicht dargestellten Fall befinden sich dich Öffnungen für die Befestigungsmittel auf der Turbinenseite, im Gasaustrittsgehäuse. Wiederum können mit separaten oder integrierten Abdeckplatten die Befestigungsmittel von dem Strömungskanal getrennt werden. BezugszeichenlisteThe attachment of compressor housing and gas outlet housing can also be done from the turbine side. In this case, not shown in the figures, there are openings for the fastening means on the turbine side, in the gas outlet housing. Again, with separate or integrated cover plates, the fasteners can be separated from the flow channel. LIST OF REFERENCE NUMBERS

Verdichtergehäusecompressor housing

GasaustrittsgehäuseGas outlet casing

Lagergehäusesbearing housing

Abdeckungcover

Befestigungsmittelfastener

Gewindeteilethreaded parts

Verjüngter SchaftTapered shaft

Verdichterradcompressor

Diffusordiffuser

Haube Hood

Claims

PAT E N TA N S P R Ü C H E PAT EN TA NSPR O CHE 1. Gehäuseverbindung zwischen einem Verdichtergehäuse (1 ) und einem Gasaustrittsgehäuse (2) eines Abgasturboladers mittels mindestens einem Befestigungsmittel (5), wobei das mindestens eine Befestigungsmittel (5) das Verdichtergehäuse (1 ) und das Gasaustrittsgehäuse (2) jeweils direkt miteinander verbindet, dadurch gekennzeichnet, dass das Befestigungsmittel (5) in Verbindungsrichtung dehnbar ausgestaltet ist.1. housing connection between a compressor housing (1) and a gas outlet housing (2) of an exhaust gas turbocharger by means of at least one fastening means (5), wherein the at least one fastening means (5), the compressor housing (1) and the gas outlet housing (2) each directly connects, characterized characterized in that the fastening means (5) is designed stretchable in the connecting direction. 2. Gehäuseverbindung nach Anspruch 1 , wobei als Befestigungsmittel (5) Dehnbolzen mit Muttern und/ oder Dehnschrauben angeordnet sind. 2. housing connection according to claim 1, wherein as fastening means (5) expansion bolts with nuts and / or expansion screws are arranged. 3. Gehäuseverbindung nach Anspruch 1 oder 2, wobei das mindestens eine3. housing connection according to claim 1 or 2, wherein the at least one Befestigungsmittel (5) im Innern eines, zwischen dem Verdichtergehäuse (1 ) und dem Gasaustrittsgehäuse (2) angeordneten, Lagergehäuses (3) angeordnet ist.Fastening means (5) in the interior of, between the compressor housing (1) and the gas outlet housing (2) arranged bearing housing (3) is arranged. 4. Gehäuseverbindung nach einem der Ansprüche 1 bis 3, wobei das Befestigungsmittel (5) verdichterseitig in einer zur Verdichterseite hin offenen Durchführung durch eine Verdichtergehäusewand angeordnet ist.4. Housing connection according to one of claims 1 to 3, wherein the fastening means (5) is arranged on the compressor side in an opening towards the compressor side passage through a compressor housing wall. 5. Gehäuseverbindung nach Anspruch 4, wobei zwischen der Durchführung und dem Strömungskanal eine Abdeckung (4) vorgesehen ist.5. housing connection according to claim 4, wherein between the passage and the flow channel, a cover (4) is provided. 6. Gehäuseverbindung nach Anspruch 1 , dadurch gekennzeichnet, dass die Verbindung den Diffusor des Verdichters oder eine umlaufende Platte, bzw. Ring einschliesst.6. housing connection according to claim 1, characterized in that the compound encloses the diffuser of the compressor or a rotating plate, or ring. 7. Gehäuseverbindung nach Anspruch 1 , dadurch gekennzeichnet, dass die Verbindung einen Diffusor und/ oder eine Haube der Turbine einschliesst.7. housing connection according to claim 1, characterized in that the connection includes a diffuser and / or a hood of the turbine. 8. Abgasturboladergehäuse, umfassend ein Verdichtergehäuse (1 ), ein Gasaustrittsgehäuse (2) sowie ein zwischen dem Verdichtergehäuse und dem Gasaustrittsgehäuse angeordnetes Lagergehäuse (3), wobei das Verdichtergehäuse direkt mittels im Innern des Lagergehäuses (3) geführten Befestigungsmitteln (5) mit dem Gasaustrittsgehäuse verbunden ist. 8. Exhaust gas turbocharger housing, comprising a compressor housing (1), a gas outlet housing (2) and arranged between the compressor housing and the gas outlet housing bearing housing (3), wherein the compressor housing directly by means of inside the bearing housing (3) guided fastening means (5) with the gas outlet housing connected is.
PCT/EP2007/055098 2006-11-10 2007-05-25 Housing connection of an exhaust gas turbocharger Ceased WO2008055717A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06023406 2006-11-10
EP06023406.9 2006-11-10

Publications (1)

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WO2008055717A1 true WO2008055717A1 (en) 2008-05-15

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009013332A3 (en) * 2007-07-24 2009-03-19 Continental Automotive Gmbh Turbocharger having a turbocharger housing comprising a threaded connection by means of an anchor
WO2008125382A3 (en) * 2007-04-16 2009-10-01 Continental Automotive Gmbh Exhaust gas turbocharger
WO2011084282A3 (en) * 2009-12-16 2011-09-29 Borgwarner Inc. Exhaust-gas turbocharger
WO2012107193A1 (en) * 2011-02-08 2012-08-16 Voith Patent Gmbh Housing for an exhaust-gas turbocharger with burst protection collapsible zone

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230848A1 (en) * 1986-01-24 1987-08-05 ROTO-MASTER Inc. Turbocharger water-cooled bearing housing
EP0395826A1 (en) * 1989-05-02 1990-11-07 AlliedSignal Inc. Unidirectional turbocharger assembly
DE19925684A1 (en) * 1999-06-04 2000-12-07 Asea Brown Boveri Fastener for turbocharger to base e.g. IC engine has positively interconnecting connection elements on bearing housing and main fastener foot
DE10107807C1 (en) 2001-02-20 2002-07-25 Man B & W Diesel Ag Flow machine with radial compressor wheel, used as a turbosupercharger, has cavity between inner cylinder of spiral casing and casing insertion piece
DE10050931C1 (en) 2000-10-13 2002-08-14 Man B & W Diesel Ag Turbo machine with impeller with radial flow
WO2002090722A1 (en) * 2001-05-04 2002-11-14 Abb Turbo Systems Ag Burst protection device for radial compressors pertaining to turbochargers
EP1273766A1 (en) * 2000-05-10 2003-01-08 General Motors Corporation Turbocharger with thermal isolation connection
DE102004027594A1 (en) 2004-06-05 2005-12-29 Man B & W Diesel Ag Turbomachine with radially flowing compressor wheel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230848A1 (en) * 1986-01-24 1987-08-05 ROTO-MASTER Inc. Turbocharger water-cooled bearing housing
EP0395826A1 (en) * 1989-05-02 1990-11-07 AlliedSignal Inc. Unidirectional turbocharger assembly
DE19925684A1 (en) * 1999-06-04 2000-12-07 Asea Brown Boveri Fastener for turbocharger to base e.g. IC engine has positively interconnecting connection elements on bearing housing and main fastener foot
EP1273766A1 (en) * 2000-05-10 2003-01-08 General Motors Corporation Turbocharger with thermal isolation connection
DE10050931C1 (en) 2000-10-13 2002-08-14 Man B & W Diesel Ag Turbo machine with impeller with radial flow
DE10107807C1 (en) 2001-02-20 2002-07-25 Man B & W Diesel Ag Flow machine with radial compressor wheel, used as a turbosupercharger, has cavity between inner cylinder of spiral casing and casing insertion piece
WO2002090722A1 (en) * 2001-05-04 2002-11-14 Abb Turbo Systems Ag Burst protection device for radial compressors pertaining to turbochargers
DE102004027594A1 (en) 2004-06-05 2005-12-29 Man B & W Diesel Ag Turbomachine with radially flowing compressor wheel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008125382A3 (en) * 2007-04-16 2009-10-01 Continental Automotive Gmbh Exhaust gas turbocharger
WO2009013332A3 (en) * 2007-07-24 2009-03-19 Continental Automotive Gmbh Turbocharger having a turbocharger housing comprising a threaded connection by means of an anchor
WO2011084282A3 (en) * 2009-12-16 2011-09-29 Borgwarner Inc. Exhaust-gas turbocharger
CN102639839A (en) * 2009-12-16 2012-08-15 博格华纳公司 Exhaust-gas turbocharger
WO2012107193A1 (en) * 2011-02-08 2012-08-16 Voith Patent Gmbh Housing for an exhaust-gas turbocharger with burst protection collapsible zone

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