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DE102004023280A1 - Exhaust gas turbocharger for internal combustion engine has spacing fitting sleeve installed in such way that one end engages in hole in flow duct component and other end engages in hole in guide vane support - Google Patents

Exhaust gas turbocharger for internal combustion engine has spacing fitting sleeve installed in such way that one end engages in hole in flow duct component and other end engages in hole in guide vane support Download PDF

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Publication number
DE102004023280A1
DE102004023280A1 DE200410023280 DE102004023280A DE102004023280A1 DE 102004023280 A1 DE102004023280 A1 DE 102004023280A1 DE 200410023280 DE200410023280 DE 200410023280 DE 102004023280 A DE102004023280 A DE 102004023280A DE 102004023280 A1 DE102004023280 A1 DE 102004023280A1
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DE
Germany
Prior art keywords
hole
end engages
exhaust gas
flow channel
gas turbocharger
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.)
Withdrawn
Application number
DE200410023280
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German (de)
Inventor
Dikran-Can Dipl.-Ing. Magzalci
Thomas Dipl.-Ing. Reske
Frank Dipl.-Ing. Wucherpfennig
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Priority to DE200410023280 priority Critical patent/DE102004023280A1/en
Publication of DE102004023280A1 publication Critical patent/DE102004023280A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F02C6/12—Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
    • F01D17/165—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for radial flow, i.e. the vanes turning around axes which are essentially parallel to the rotor centre line
    • 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

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

Abstract

The exhaust gas turbocharger for an internal combustion engine has for the fastening of a flow duct component (14) and guide vane support (16) on a bearing housing (12) at least one screw (24) and a distance sleeve installed between them in an annular passage (20). The distance sleeve is constructed as a spacing fitting sleeve (26) which is installed in such a way that one end engages in a hole in the flow duct component and the other end engages in a hole in the guide vane support.

Description

Die Erfindung betrifft einen Abgasturbolader für eine Brennkraftmaschine, insbesondere eines Kraftfahrzeuges, mit einem Turbinengehäuse, einem im Turbinengehäuse angeordneten Turbinenrad, einem Lagergehäuse, einem Strömungskanalbauteil, welches einen Abschnitt eines Strömungskanals in dem Turbinengehäuse ausbildet, und einem Leitschaufelträger mit Leitschaufeln, welche in einem zwischen dem Leitschaufelträger und dem Strömungskanalbauteil ausgebildeten Ringkanal um das Turbinenrad herum schwenkbar angeordnet sind, wobei zum Befestigen des Strömungskanalbauteils und des Leitschaufelträgers am Lagergehäuse wenigstens eine Schraube sowohl durch das Strömungskanalbauteil, den Leitschaufelträger und eine jeweilige Distanzhülse, welche zwischen dem Leitschaufelträger und dem Strömungskanalbauteil im Ringkanal angeordnet ist, hindurch in das Lagergehäuse eingreift, gemäß dem Oberbegriff des Patentanspruchs 1.The The invention relates to an exhaust gas turbocharger for an internal combustion engine, in particular of a motor vehicle, with a turbine housing, one in turbine housing arranged turbine wheel, a bearing housing, a flow channel component, which a section of a flow channel in the turbine housing and a vane carrier with vanes which in a between the vane support and the flow channel component trained annular channel around the turbine wheel pivotally arranged around are, wherein for securing the flow channel component and the guide vane on the bearing housing at least one screw through both the flow channel member, the vane support and a respective spacer sleeve, which is between the vane support and the flow channel component is arranged in the annular channel, engages through into the bearing housing, according to the generic term of claim 1

Aus der DE 100 11 441 C2 ist ein Abgasturbolader bekannt, bei dem ein separates Strömungskanalbauteil, welches auch als Trompete bezeichnet wird, einen Strömungskanal mit ringförmigem Turbinenmantel im Turbinengehäuse ausbildet.From the DE 100 11 441 C2 An exhaust gas turbocharger is known in which a separate flow channel component, which is also referred to as a trumpet, forms a flow channel with an annular turbine jacket in the turbine housing.

Aus der JP 61268804 ist eine Abgasturbine eines Abgasturboladers mit variabler Turbinengeometrie bekannt, wobei zur Vermeidung von Vibrationen der Leitschaufeln diese bzgl. Leitschaufel-Schwenkachsen radial versetzet bzw. beabstandet angeordnet sind. Die Leitschaufeln sind von einem Leitschaufelträger getragen, welcher mittels Schrauben an einem Lagergehäuse befestigt ist. Ein Strömungskanal für Abgas wird in der Abgasturbine vollständig von dem Turbinengehäuse ausgebildet. Dies erfordert eine hohe Genauigkeit bei der Herstellung des Turbinengehäuse, damit freie Enden der Leitschaufeln einerseits eng genug an einer Wandung des Turbinengehäuses anliegen, um entsprechend abzudichten, andererseits aber nicht zu fest am Turbinengehäuse anliegen, da sonst die Gefahr besteht, dass ein Verstellmechanismus für die Leitschaufeln blockiert wird. Zusätzlich verschärft sich dieses Problem durch Temperaturausdehnungen bei dem Turbinengehäuse und dem Leitschaufelträger.From the JP 61268804 is an exhaust gas turbine of an exhaust gas turbocharger with variable turbine geometry known, which are arranged radially offset relative to the guide vane pivot axes or spaced to avoid vibrations of the vanes. The vanes are carried by a vane carrier which is secured by screws to a bearing housing. A flow passage for exhaust gas is completely formed in the exhaust turbine of the turbine housing. This requires a high accuracy in the manufacture of the turbine housing, so that free ends of the vanes on the one hand tight enough against a wall of the turbine housing to seal accordingly, but on the other hand not rest too firmly on the turbine housing, otherwise there is a risk that an adjustment mechanism for the Guide vanes is blocked. In addition, this problem is exacerbated by thermal expansion of the turbine housing and vane support.

Um diese Problematik der Temperaturausdehnung mit der Gefahr der Verklemmung zwischen Leitschaufeln und Turbinengehäuse zu entschärfen, wurde in der US 4 804 316 vorgeschlagen, den Leitschaufelträger mittels einer Schraube, die durch eine Distanzhülse greift, an demjenigen Teil des Turbinengehäuses anzuschrauben, welcher zusammen mit dem Leitschaufelträger einen Ringkanal für die Leitschaufeln ausbildet.To mitigate this problem of temperature expansion with the risk of jamming between vanes and turbine housing, was in the US 4,804,316 proposed to screw the vane support by means of a screw which engages through a spacer sleeve on that part of the turbine housing, which forms together with the guide vane carrier an annular channel for the guide vanes.

Der Erfindung liegt die Aufgabe zugrunde, einen Aufbau und eine Montage eines Abgasturboladers bei gleichzeitig verbesserter Positioniergenauigkeit zu vereinfachen.Of the Invention is based on the object, a structure and a mounting an exhaust gas turbocharger with improved positioning accuracy to simplify.

Diese Aufgabe wird erfindungsgemäß durch einen Abgasturbolader der o.g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den weiteren Ansprüchen beschrieben.These The object is achieved by a Exhaust gas turbocharger of the o.g. Type with the characterized in claim 1 Characteristics solved. Advantageous embodiments of the invention are in the other claims described.

Dazu ist es bei einem Abgasturbolader der o.g. Art erfindungsgemäß vorgesehen, dass die jeweilige Distanzhülse als eine Distanzpasshülse ausgebildet ist.To it is in an exhaust gas turbocharger the o.g. Art provided according to the invention, that the respective spacer sleeve as a spacer sleeve is trained.

Dies hat den Vorteil, dass als Schrauben zum Befestigen des Leitschaufelträgers und des Strömungskanalbauteils am Lagergehäuse herkömmliche Schrauben und keine Passschrauben verwendet werden können, was die Montage vereinfacht und die Herstellungskosten senkt, und ein Passungsbereich zur exakten Positionierung von Leitschaufelträger und Strömungskanalbauteil durch die ohnehin vorhandenen Distanzhülsen zur Verfügung gestellt wird.This has the advantage of being used as screws for attaching the vane carrier and the flow channel component on the bearing housing conventional Screws and no dowel screws can be used, what simplifies assembly and lowers manufacturing costs, and a Fitting range for exact positioning of guide vane carrier and Flow channel member provided by the already existing spacers available becomes.

In einer bevorzugten Weiterbildung der Erfindung ist die jeweilige Distanzpasshülse derart angeordnet, dass ein Ende der Distanzpasshülse in eine Bohrung im Strömungskanalbauteil und das entsprechend andere Ende der Distanzpasshülse in eine Bohrung im Leitschaufelträger greift.In a preferred embodiment of the invention is the respective Distance fitting sleeve arranged such that one end of the Distanzpasshülse in a bore in the flow channel component and the other end of the Distanzpasshülse in a bore in the vane carrier attacks.

Zweckmäßigerweise sind drei Schrauben mit entsprechend drei Distanzpasshülsen vorgesehen.Conveniently, Three screws with correspondingly three spacer sleeves are provided.

Die Erfindung wird im folgenden anhand der Zeichnung näher erläutert. Diese zeigt in der einzigen Fig. eine bevorzugte Ausführungsform eines erfindungsgemäßen Abgasturboladers in perspektivischer, teilweise geschnittener Ansicht.The The invention will be explained in more detail below with reference to the drawing. These shows in the only Fig. A preferred embodiment of an exhaust gas turbocharger according to the invention in perspective, partially sectioned view.

Die aus der einzigen Fig. ersichtliche bevorzugte Ausführungsform eines erfindungsgemäßen Abgasturboladers für eine Brennkraftmaschine umfasst ein Turbinengehäuse 10, ein Lagergehäuse 12, ein Strömungskanalbauteil 14, welches auch als Trompete, Konturhülse oder Kartusche bezeichnet wird, und einen Leitschaufelträger 16, an dem Leitschaufeln 18 verschwenkbar in einem Ringkanal 20, welcher zwischen dem Strömungskanalbauteil 14 und dem Leitschaufelträger 16 ausgebildet ist, angeordnet sind. An dem Leitschaufelträger 16 ist ferner ein Verstellring 22 angeordnet, welcher alle am Leitschaufelträger 16 angeordneten Leitschaufeln 18 kollektiv verschwenkt. Zwischen dem Leitschaufelträger 16 und dem Strömungskanalbauteil 14 ist wenigstens eine Distanzpasshülse 26 angeordnet, welche eine Breite des Ringkanals 20 bestimmt.The preferred embodiment of an exhaust gas turbocharger according to the invention for an internal combustion engine which can be seen from the single FIGURE comprises a turbine housing 10 , a bearing housing 12 , a flow channel component 14 , which is also referred to as a trumpet, contour sleeve or cartridge, and a vane carrier 16 on the vanes 18 pivotable in a ring channel 20 , which is between the flow channel component 14 and the vane carrier 16 is formed, are arranged. On the vane carrier 16 is further an adjusting ring 22 arranged, which all on the vane carrier 16 arranged vanes 18 pivoted collectively. Between the vane carrier 16 and the flow channel component 14 is at least a Distanzpasshülse 26 arranged, which has a width of the annular channel 20 certainly.

Eine Schraube 24 greift durch das Strömungskanalbauteil 14, jeweils eine Distanzpasshülse 26 und den Leitschaufelträger 16 hindurch in das Lagergehäuse 12 hinein und befestigt auf diese Weise das Strömungskanalbauteil 14 und den Leitschaufelträger 16 am Lagergehäuse 12. Durch den von der Distanzpasshülse 26 zur Verfügung gestellten Passungsbereich wird eine funktionsrichtige Ausrichtung von Strömungskanalbauteil 14 zu Leitschaufelträger 16 sichergestellt.A screw 24 engages through the flow channel component 14 , each a Distanzpasshülse 26 and the vane carrier 16 through into the bearing housing 12 in and attached in this way the flow channel component 14 and the vane carrier 16 on the bearing housing 12 , By the of the distance sleeve 26 provided fitting range is a functionally correct orientation of flow channel component 14 to guide vane carrier 16 ensured.

Die als "VTG-Modul" bezeichnete Kombination aus Leitschaufelträger 16 und Verstellring 22 wird beispielsweise mit drei Schrauben am Lagergehäuse 12 verschraubt, wobei dementsprechend drei Distanzpasshülsen 26 vorgesehen sind. Durch die Verwendung von Passhülsen 26 als Distanzhülsen zwischen dem Leitschaufelträger 16 und dem Strömungskanalbauteil 14 können "normale" Schrauben verwendet werden und die spezielle Herstellung von Passschrauben ist entbehrlich.The "VTG module" combination of vane carrier 16 and adjusting ring 22 For example, with three screws on the bearing housing 12 screwed, with accordingly three Distanzpasshülsen 26 are provided. Through the use of dowel sleeves 26 as spacers between the vane support 16 and the flow channel component 14 "normal" screws can be used and the special production of fitting screws is unnecessary.

Claims (3)

Abgasturbolader für eine Brennkraftmaschine, insbesondere eines Kraftfahrzeuges, mit einem Turbinengehäuse (10), einem im Turbinengehäuse (10) angeordneten Turbinenrad, einem Lagergehäuse (12), einem Strömungskanalbauteil (14), welches einen Abschnitt eines Strömungskanals in dem Turbinengehäuse (10) ausbildet, und einem Leitschaufelträger (16) mit Leitschaufeln (18), welche in einem zwischen dem Leitschaufelträger (16) und dem Strömungskanalbauteil (14) ausgebildeten Ringkanal (20) um das Turbinenrad herum schwenkbar angeordnet sind, wobei zum Befestigen des Strömungskanalbauteils (14) und des Leitschaufelträgers (16) am Lagergehäuse (12) wenigstens eine Schraube (24) sowohl durch das Strömungskanalbauteil (14), den Leitschaufelträger (16) und eine jeweilige Distanzhülse, welche zwischen dem Leitschaufelträger (16) und dem Strömungskanalbauteil (14) im Ringkanal (20) angeordnet ist, hindurch in das Lagergehäuse (12) eingreift, dadurch gekennzeichnet, dass die jeweilige Distanzhülse als eine Distanzpasshülse (26) ausgebildet ist.Exhaust gas turbocharger for an internal combustion engine, in particular of a motor vehicle, with a turbine housing ( 10 ), one in the turbine housing ( 10 ) arranged turbine wheel, a bearing housing ( 12 ), a flow channel component ( 14 ), which forms a portion of a flow channel in the turbine housing ( 10 ) and a vane carrier ( 16 ) with vanes ( 18 ), which in one between the guide vane carrier ( 16 ) and the flow channel component ( 14 ) formed annular channel ( 20 ) are arranged pivotable about the turbine wheel, wherein for fastening the flow channel component ( 14 ) and the vane carrier ( 16 ) on the bearing housing ( 12 ) at least one screw ( 24 ) through both the flow channel component ( 14 ), the vane carrier ( 16 ) and a respective spacer sleeve, which between the guide vane carrier ( 16 ) and the flow channel component ( 14 ) in the annular channel ( 20 ) is arranged, into the bearing housing ( 12 ) engages, characterized in that the respective spacer sleeve as a Distanzpasshülse ( 26 ) is trained. Abgasturbolader nach Anspruch 1, dadurch gekennzeichnet, dass die jeweilige Distanzpasshülse (26) derart angeordnet ist, dass ein Ende der Distanzpasshülse (26) in eine Bohrung im Strömungskanalbauteil (14) und das entsprechend andere Ende der Distanzpasshülse (26) in eine Bohrung im Leitschaufelträger (16) greift.Exhaust gas turbocharger according to claim 1, characterized in that the respective Distanzpasshülse ( 26 ) is arranged such that one end of the Distanzpasshülse ( 26 ) into a bore in the flow channel component ( 14 ) and the corresponding other end of the spacer sleeve ( 26 ) into a bore in the guide vane carrier ( 16 ) attacks. Abgasturbolader nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens eine Schraube, beispielsweise drei Schrauben, mit der entsprechenden Anzahl von mindestens einer Distanzpasshülse, beispielsweise drei Distanzpasshülsen, vorgesehen ist bzw. sind.Exhaust gas turbocharger according to at least one of the preceding Claims, characterized in that at least one screw, for example three Screws, with the appropriate number of at least one Distanzpasshülse, such as three Distance dowels, is provided or are.
DE200410023280 2004-05-11 2004-05-11 Exhaust gas turbocharger for internal combustion engine has spacing fitting sleeve installed in such way that one end engages in hole in flow duct component and other end engages in hole in guide vane support Withdrawn DE102004023280A1 (en)

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DE200410023280 DE102004023280A1 (en) 2004-05-11 2004-05-11 Exhaust gas turbocharger for internal combustion engine has spacing fitting sleeve installed in such way that one end engages in hole in flow duct component and other end engages in hole in guide vane support

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DE200410023280 DE102004023280A1 (en) 2004-05-11 2004-05-11 Exhaust gas turbocharger for internal combustion engine has spacing fitting sleeve installed in such way that one end engages in hole in flow duct component and other end engages in hole in guide vane support

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010123764A3 (en) * 2009-04-20 2011-01-20 Borgwarner Inc. Insulating and damping sleeve for a rolling element bearing cartridge

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998041737A1 (en) * 1997-03-17 1998-09-24 Alliedsignal Inc. Pressure balanced dual axle variable nozzle turbocharger
EP1227221A2 (en) * 2001-01-24 2002-07-31 Mahle Gmbh Unison ring for a turbocharger
EP1398463A1 (en) * 2002-09-10 2004-03-17 Borg Warner Inc. Variable geometry guide vanes and turbocharger with these vanes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998041737A1 (en) * 1997-03-17 1998-09-24 Alliedsignal Inc. Pressure balanced dual axle variable nozzle turbocharger
EP1227221A2 (en) * 2001-01-24 2002-07-31 Mahle Gmbh Unison ring for a turbocharger
EP1398463A1 (en) * 2002-09-10 2004-03-17 Borg Warner Inc. Variable geometry guide vanes and turbocharger with these vanes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010123764A3 (en) * 2009-04-20 2011-01-20 Borgwarner Inc. Insulating and damping sleeve for a rolling element bearing cartridge
US8807840B2 (en) 2009-04-20 2014-08-19 Borgwarner Inc. Insulating and damping sleeve for a rolling element bearing cartridge

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Effective date: 20110511