EP1891301B1 - Adjusting shaft arrangement of a turbocharger - Google Patents

Adjusting shaft arrangement of a turbocharger Download PDF

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Publication number
EP1891301B1
EP1891301B1 EP06753813A EP06753813A EP1891301B1 EP 1891301 B1 EP1891301 B1 EP 1891301B1 EP 06753813 A EP06753813 A EP 06753813A EP 06753813 A EP06753813 A EP 06753813A EP 1891301 B1 EP1891301 B1 EP 1891301B1
Authority
EP
European Patent Office
Prior art keywords
adjusting shaft
turbocharger
seal
basic body
bush
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.)
Expired - Fee Related
Application number
EP06753813A
Other languages
German (de)
French (fr)
Other versions
EP1891301A1 (en
Inventor
Dirk Frankenstein
Volker Paul
Ralf Böning
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.)
BorgWarner Inc
Original Assignee
BorgWarner Inc
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 BorgWarner Inc filed Critical BorgWarner Inc
Publication of EP1891301A1 publication Critical patent/EP1891301A1/en
Application granted granted Critical
Publication of EP1891301B1 publication Critical patent/EP1891301B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/005—Sealing means between non relatively rotating elements
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/003—Preventing or minimising internal leakage of working-fluid, e.g. between stages by packing rings; Mechanical seals
    • 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
    • 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
    • F01D17/105—Final actuators by passing part of the fluid
    • 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
    • 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
    • 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
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/29—Three-dimensional machined; miscellaneous
    • F05D2250/293—Three-dimensional machined; miscellaneous lathed, e.g. rotation symmetrical

Definitions

  • the invention relates to a Verstellwellenan accent a VTG turbocharger or waste gate door bolster according to the preamble of claim 1.
  • VTG turbocharger is a variable turbine geometry (VTG) turbocharger that requires a variable shaft arrangement.
  • VTG turbocharger is a variable turbine geometry (VTG) turbocharger that requires a variable shaft arrangement.
  • Waste-Gate turbocharger the turbine bypass is controlled by means of a flap which is moved by the adjusting shaft.
  • a static seal is provided between the adjusting shaft and the bush, which at least substantially reduces, if not completely suppresses, exhaust gas and soot emissions of the turbocharger via the bushing to the outside.
  • the seal is designed as a piston ring.
  • the seal is arranged in a groove of a main body of the adjusting shaft between a fixing portion and a free end.
  • the main body is stepped, so that there are two cylindrical sections with different outer diameter.
  • the inner contour of the bush surrounding the main body is also designed to be complementary in a stepped manner, so that in turn results in two areas with a cylindrical inner diameter of different dimensions.
  • the transition of both areas can be formed as a slip chamfer for the piston ring assembly, so that the longest possible effective sealing gap both ends remain.
  • the conditional by the transition annular space between the bush and adjusting can serve as a collection volume for particles. Due to the accumulation of particles in the collecting volume, accumulation in the sealing gap is avoided, which can lead to the stiffness of the adjusting shaft.
  • the outer diameter of the bushing does not necessarily have to be stepped. It can also be constant over the entire socket length. A gradation of the bush outer diameter has the added advantage of preventing reverse misplacement.
  • Fig. 1 a known Verstellwellenan extract 1 of a VTG turbocharger is shown.
  • the VTG turbocharger itself is not shown in detail in the figures, since this may be a conventional construction known per se.
  • the adjusting shaft arrangement 1 has an adjusting shaft 2, which comprises a fixing section 3 and a free end 8.
  • Fig. 1 further shows that the fixing portion 3 and the free end 8 have a smaller outer diameter than a Main body 6 of the adjusting shaft 2, which is arranged between the fixing section 3 and the free end 8. All three sections have in the example case a cylindrical outer contour.
  • the adjusting shaft 2 is connected via the fixing section 3 with a lever 4.
  • the adjusting shaft arrangement 1 has a socket 5 which is arranged on the base body 6 of the adjusting shaft 2.
  • a seal 7 is provided, which is arranged in the region of the base body 6 between the sleeve 5 and the adjusting shaft 2.
  • the base body 6 has a circumferential groove and the seal may preferably be formed as a piston ring, which is arranged in the groove 9.
  • the base body 6 of the adjusting shaft 2 is formed continuously cylindrical or smooth and on both sides of the bushing slip chewing are clearly visible.
  • FIG. 2 illustrated first embodiment of Verstellwellenan angel invention provided with a base body 6, which is stepped, so that there are two cylindrical sections 10 and 11, which have different outer diameter.
  • the portion 10 has a larger outer diameter than the portion 11th
  • the bush 5 in the region of the section 10 has a larger inner diameter than in the region which surrounds the section 11 of the adjusting shaft 2.
  • the seal 7 is arranged in a groove of the base body 6.
  • the socket 5 also has two portions 12 and 13, wherein the portion 12 of larger inner diameter surrounds the portion 10 of the adjusting shaft 2, while the portion 13 surrounds the region 11 of the adjusting shaft 2 with a smaller outer diameter.
  • the portion 12 of the sleeve 13 also has a smaller outer diameter than the portion 13 of the sleeve 5.
  • Fig. 3 a second embodiment is shown, which is provided for a waste gate turbocharger. Since the formation of an adjustment also those of Fig. 2 may be referred to the above statements.

Abstract

The invention relates to an adjusting shaft arrangement (1) of a variable turbine geometry turbocharger or waste gate turbocharger having an adjusting shaft (2) which has a fastening section (3); having a lever (4) which is connected to the adjusting shaft (2) via the fastening section (3); having a sleeve (5) which is arranged on a base body (6) of the adjusting shaft (2); and having a seal (7) which is arranged in the region of the base body (6) between the sleeve (5) and the adjusting shaft (2); the main body (6) of the adjusting shaft (2) having a stepped outer contour; and the sleeve (5) having an inner contour with a stepped inner contour which complements the design of the base body (6).

Description

Die Erfindung betrifft eine Verstellwellenanordnung eines VTG-Turboladers bzw. Waste-Gate Türboladers gemäß dem Oberbegriff des Anspruchs 1. Eine solche Verstellwellenanordnung ist aus der WO 2004/063535 bekannt. Unter einem VTG-Turbolader versteht man einen Turbolader mit variabler Turbinengeometrie (VTG), die eine Verstellwellenanordnung benötigt. Beim Waste-Gate Turbolader wird der Turbinenbypaß mittels einer Klappe, die durch die Verstellwelle bewegt wird, geregelt.The invention relates to a Verstellwellenanordnung a VTG turbocharger or waste gate door bolster according to the preamble of claim 1. Such Verstellwellenanordnung is from the WO 2004/063535 known. A VTG turbocharger is a variable turbine geometry (VTG) turbocharger that requires a variable shaft arrangement. In the Waste-Gate turbocharger, the turbine bypass is controlled by means of a flap which is moved by the adjusting shaft.

Bei bekannten Verstellwellenanordnungen von VTG-Turboladern kann das Problem einer mangelhaften Dichtwirkung der Spaltdichtung im Bereich zwischen der Verstellwelle und der Buchse, in Abhängigkeit des anliegenden Abgasüberdruckes, auftreten, was zu Abgas- und Rußemissionen des Turboladers nach außen führen kann.In known Verstellwellenanordnungen of VTG turbochargers, the problem of poor sealing effect of the gap seal in the region between the adjusting and the sleeve, depending on the applied exhaust gas overpressure occur, which can lead to exhaust and soot emissions of the turbocharger to the outside.

Aus der WO2004/063535 A1 ist eine verbesserte Abdichtung mittels mittig in der Buchse angeordnetem Kolbenring bekannt, so dass dessen Dichtwirkung mit der Spaltdichtwirkung kombiniert wird.From the WO2004 / 063535 A1 an improved seal is known by means arranged centrally in the bushing piston ring, so that its sealing effect is combined with the gap-tight action.

Diese Anordnung hat jedoch den entscheidenden Nachteil, dass die für die Kolbenringmontage notwendige Schlupffase in der Buchsenbohrung die wirksame Spaltdichtlänge deutlich verkürzt, da bei einer symmetrischen Buchsengeometrie und nicht seitengerichteten Montage auch an der anderen Buchsenstirnseite zweckmäßigerweise eine Schlupffase notwendig wird.However, this arrangement has the decisive disadvantage that the necessary for the piston ring assembly slip in the Bushing bore the effective gap sealing length significantly shortened, as in a symmetrical bushing geometry and non-paged mounting also on the other side of the bushing expediently a slip be necessary.

Es ist daher Aufgabe der vorliegenden Erfindung, eine Verstellwellenanordnung eines VTG- bzw. Waste-Gate-Turboladers zu schaffen, die zum einen eine Kombination von Spalt- und Kolbenringdichtung darstellt, um dessen Abgas- und Rußemissionen nach außen deutlich zu vermindern, und zum anderen bei gleicher Buchsenlänge eine verbesserte Dichtwirkung ermöglicht.It is therefore an object of the present invention to provide a Verstellwellenanordnung a VTG or waste-gate turbocharger, which is a combination of gap and piston ring seal to significantly reduce its exhaust and soot emissions to the outside, and on the other allows for the same socket length improved sealing effect.

Die Lösung dieser Aufgabe erfolgt durch die Merkmale des Anspruchs 1. Die Unteransprüche haben vorteilhafte Weiterbildungen der Erfindung zum Inhalt.The solution of this object is achieved by the features of claim 1. The subclaims have advantageous developments of the invention to the content.

Erfindungsgemäß wird eine statische Abdichtung zwischen der Verstellwelle und der Buchse geschaffen, die Abgas- und Rußemissionen des Turboladers über die Buchse nach außen zumindest erheblich reduziert, wenn nicht gar gänzlich unterbindet.According to the invention, a static seal is provided between the adjusting shaft and the bush, which at least substantially reduces, if not completely suppresses, exhaust gas and soot emissions of the turbocharger via the bushing to the outside.

Vorzugsweise ist die Dichtung als Kolbenring ausgebildet.Preferably, the seal is designed as a piston ring.

Bei einer besonders bevorzugten Ausführungsform ist die Dichtung in einer Nut eines Hauptkörpers der Verstellwelle zwischen einem Fixierungsabschnitt und einem freien Ende angeordnet.In a particularly preferred embodiment, the seal is arranged in a groove of a main body of the adjusting shaft between a fixing portion and a free end.

Der Hauptkörper ist gestuft ausgebildet, so dass sich zwei zylindrische Abschnitte mit unterschiedlichem Außendurchmesser ergeben. Die Innenkontur der den Hauptkörper umgebenden Buchse ist komplementär ebenfalls gestuft ausgebildet, so dass sich wiederum zwei Bereiche mit zylindrischem Innendurchmesser unterschiedlichem Maßes ergeben. Der Übergang beider Bereiche kann als Schlupffase für die Kolbenringmontage ausgebildet werden, so dass ein möglichst langer effektiver Dichtspalt an beiden Enden verbleibt. Der durch den Übergang bedingte ringförmige Zwischenraum zwischen Buchse und Verstellwelle kann dabei als Sammelvolumen für Partikel dienen. Durch die Partikelansammlungen im Sammelvolumen wird eine Ansammlung im Dichtspalt vermieden, was zur Schwergängigkeit der Verstellwelle führen kann. Der Außendurchmesser der Buchse muss nicht zwangsläufig gestuft ausgeführt sein. Er kann auch konstant über die gesamte Buchsenlänge sein. Eine Stufung des Buchsenaußendurchmessers hat den zusätzlichen Vorteil, dass seitenverkehrte Fehlmontagen verhindert werden.The main body is stepped, so that there are two cylindrical sections with different outer diameter. The inner contour of the bush surrounding the main body is also designed to be complementary in a stepped manner, so that in turn results in two areas with a cylindrical inner diameter of different dimensions. The transition of both areas can be formed as a slip chamfer for the piston ring assembly, so that the longest possible effective sealing gap both ends remain. The conditional by the transition annular space between the bush and adjusting can serve as a collection volume for particles. Due to the accumulation of particles in the collecting volume, accumulation in the sealing gap is avoided, which can lead to the stiffness of the adjusting shaft. The outer diameter of the bushing does not necessarily have to be stepped. It can also be constant over the entire socket length. A gradation of the bush outer diameter has the added advantage of preventing reverse misplacement.

Weitere Einzelheiten, Vorteile und Merkmale der Erfindung ergeben sich aus nachfolgender Beschreibung zweier Ausführungsbeispiele anhand der beigefügten Zeichnung.
Es zeigen:

Fig. 1
eine teilweise geschnittene Darstellung einer be- kannten Verstellwellenanordnung,
Fig. 2
eine der Fig. 1 entsprechende Darstellung einer ers- ten Ausführungsform der erfindungsgemäßen Verstell- wellenanordnung (VTG); und
Fig. 3
eine der Fig. 1 entsprechende Darstellung einer zweiten Ausführungsform der erfindungsgemäßen Ver- stellwellenanordnung (Waste-Gate).
Further details, advantages and features of the invention will become apparent from the following description of two embodiments with reference to the accompanying drawings.
Show it:
Fig. 1
a partially cutaway view of a known Verstellwellenanordnung,
Fig. 2
one of the Fig. 1 corresponding representation of a first embodiment of the adjustment shaft arrangement (VTG) according to the invention; and
Fig. 3
one of the Fig. 1 corresponding representation of a second embodiment of the adjustment shaft arrangement according to the invention (waste gate).

In Fig. 1 ist eine bekannte Verstellwellenanordnung 1 eines VTG-Turboladers dargestellt. Der VTG-Turbolader selber ist in den Figuren nicht näher dargestellt, da es sich hierbei um eine übliche, an sich bekannte Konstruktion handeln kann.In Fig. 1 a known Verstellwellenanordnung 1 of a VTG turbocharger is shown. The VTG turbocharger itself is not shown in detail in the figures, since this may be a conventional construction known per se.

Die Verstellwellenanordnung 1 weist eine Verstellwelle 2 auf, die einen Fixierungsabschnitt 3 und ein freies Ende 8 umfasst. Fig. 1 zeigt weiter, dass der Fixierungsabschnitt 3 und das freie Ende 8 einen geringeren Außendurchmesser haben, als ein Hauptkörper 6 der Verstellwelle 2, der zwischen dem Fixierungsabschnitt 3 und dem freien Ende 8 angeordnet ist. Alle drei Abschnitte weisen im Beispielsfalle eine zylindrische Außenkontur auf.The adjusting shaft arrangement 1 has an adjusting shaft 2, which comprises a fixing section 3 and a free end 8. Fig. 1 further shows that the fixing portion 3 and the free end 8 have a smaller outer diameter than a Main body 6 of the adjusting shaft 2, which is arranged between the fixing section 3 and the free end 8. All three sections have in the example case a cylindrical outer contour.

Die Verstellwelle 2 ist über den Fixierungsabschnitt 3 mit einem Hebel 4 verbunden.The adjusting shaft 2 is connected via the fixing section 3 with a lever 4.

Ferner weist die Verstellwellenanordnung 1 eine Buchse 5 auf, die auf dem Basiskörper 6 der Verstellwelle 2 angeordnet ist.Furthermore, the adjusting shaft arrangement 1 has a socket 5 which is arranged on the base body 6 of the adjusting shaft 2.

Schließlich ist eine Dichtung 7 vorgesehen, die im Bereich des Basiskörpers 6 zwischen der Buchse 5 und der Verstellwelle 2 angeordnet ist. Hierfür weist der Basiskörper 6 eine umlaufende Nut auf und die Dichtung kann vorzugsweise als Kolbenring ausgebildet sein, der in der Nut 9 angeordnet ist. Somit ergibt sich zwischen der Buchse 5 und der Verstellwelle 2 bzw. ihrem Basiskörper 6 eine Abdichtung, die ein Nachaußendringen von Rußemissionen oder Abgasen deutlich einschränkt.Finally, a seal 7 is provided, which is arranged in the region of the base body 6 between the sleeve 5 and the adjusting shaft 2. For this purpose, the base body 6 has a circumferential groove and the seal may preferably be formed as a piston ring, which is arranged in the groove 9. Thus results between the sleeve 5 and the adjusting shaft 2 and its base body 6, a seal that limits a Nachaußendringen of soot emissions or exhaust gases significantly.

Bei der in Fig. 1 dargestellten Verstellwellenanordnung ist der Basiskörper 6 der Verstellwelle 2 durchgehend zylindrisch bzw. glatt ausgebildet und an beiden Buchsenstirnseiten sind Schlupffasen deutlich erkennbar.At the in Fig. 1 illustrated adjusting shaft assembly, the base body 6 of the adjusting shaft 2 is formed continuously cylindrical or smooth and on both sides of the bushing slip chewing are clearly visible.

Im Gegensatz hierzu ist die in Fig. 2 dargestellte erste Ausführungsform der erfindungsgemäßen Verstellwellenanordnung mit einem Basiskörper 6 versehen, der abgestuft ist, so dass sich zwei zylindrische Abschnitte 10 und 11 ergeben, die unterschiedliche Außendurchmesser haben. Bei der dargestellten Ausführungsform weist der Abschnitt 10 einen größeren Außendurchmesser auf als der Abschnitt 11.In contrast, the in Fig. 2 illustrated first embodiment of Verstellwellenanordnung invention provided with a base body 6, which is stepped, so that there are two cylindrical sections 10 and 11, which have different outer diameter. In the illustrated embodiment, the portion 10 has a larger outer diameter than the portion 11th

Dementsprechend weist die Buchse 5 im Bereich des Abschnittes 10 einen größeren Innendurchmesser als in dem Bereich auf, der den Abschnitt 11 der Verstellwelle 2 umgibt.Accordingly, the bush 5 in the region of the section 10 has a larger inner diameter than in the region which surrounds the section 11 of the adjusting shaft 2.

Auch bei der erfindungsgemäßen Ausführungsform ist in einer Nut des Basiskörpers 6 die Dichtung 7 angeordnet. Somit kann bezüglich aller übereinstimmender Merkmale auf die Beschreibung der Fig. 1 verwiesen werden.Also in the embodiment according to the invention, the seal 7 is arranged in a groove of the base body 6. Thus, with respect to all matching features, the description of the Fig. 1 to get expelled.

Wie Fig. 2 ferner zeigt, weist die Buchse 5 ebenfalls zwei Abschnitte 12 und 13 auf, wobei der Abschnitt 12 mit größerem Innendurchmesser den Abschnitt 10 der Verstellwelle 2 umgibt, während der Abschnitt 13 den Bereich 11 der Verstellwelle 2 mit geringerem Außendurchmesser umgibt. Der Abschnitt 12 der Buchse 13 hat ferner einen geringeren Außendurchmesser als der Abschnitt 13 der Buchse 5. Diesbezüglich kann zur ergänzenden Offenbarung auf die zeichnerische Darstellung der Fig. 2 verwiesen werden.As Fig. 2 also shows, the socket 5 also has two portions 12 and 13, wherein the portion 12 of larger inner diameter surrounds the portion 10 of the adjusting shaft 2, while the portion 13 surrounds the region 11 of the adjusting shaft 2 with a smaller outer diameter. The portion 12 of the sleeve 13 also has a smaller outer diameter than the portion 13 of the sleeve 5. In this regard, for additional disclosure to the drawings of the Fig. 2 to get expelled.

In Fig. 3 ist eine zweite Ausführungsform dargestellt, die für einen Waste-Gate-Turbolader vorgesehen ist. Da die Ausbildung einer Verstellwelle auch derjenigen der Fig. 2 entspricht, kann auf die vorstehenden Ausführungen Bezug genommen werden.In Fig. 3 a second embodiment is shown, which is provided for a waste gate turbocharger. Since the formation of an adjustment also those of Fig. 2 may be referred to the above statements.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Verstellwellenanordnungadjusting shaft
22
Verstellwelleadjusting
33
Fixierungsabschnittfixing section
44
Hebellever
55
BuchseRifle
66
Basiskörperbase body
77
Dichtungpoetry
88th
Freies EndeFree end
99
Nutgroove
1010
Abschnitt der Verstellwelle 2 mit großem Außendurchmes- serSection of the adjusting shaft 2 with a large outer diameter
1111
Abschnitt der Verstellwelle 2 mit geringerem Außendurch- messerSection of the adjusting shaft 2 with a smaller outer diameter
1212
Abschnitt der Buchse 5 mit größerem InnendurchmesserSection of the socket 5 with a larger inner diameter
1313
Abschnitt der Buchse 5 mit geringerem InnendurchmesserSection of the socket 5 with a smaller inner diameter
1414
Schlupffasechamfer
1515
Sammelvolumencollection volume

Claims (5)

  1. Adjusting shaft arrangement (1) of a VTG or wastegate turbocharger,
    - having an adjusting shaft (2) which has a fixing section (3) and a basic body (6);
    - having a lever (4) which is connected to the adjusting shaft (2) via the fixing section (3);
    - having a bush (5) which is arranged on a basic body (6) of the adjusting shaft (2); and
    - having a seal (7) which is arranged in the region of the basic body (6) between the bush (5) and the adjusting shaft (2);
    characterized in that
    - the basic body (6) of the adjusting shaft (2) has a stepped outer contour; and
    - the bush (5) has an inner contour which is designed to be complementary to the design of the basic body (6).
  2. Adjusting shaft arrangement according to Claim 1, characterized in that the seal (7) is a piston ring.
  3. Adjusting shaft arrangement according to Claim 1 or 2, characterized in that the seal (7) is arranged in a groove (9) of the adjusting shaft (2).
  4. Adjusting shaft arrangement according to one of Claims 1 to 3, characterized in that the adjusting shaft (2) has a free end (8) whose outside diameter is smaller than the outside diameter of the basic body (6) of the adjusting shaft (2).
  5. Adjusting shaft arrangement according to one of Claims 1 to 4, characterized in that the bush (5) has an outer contour designed to be stepped in a complementary manner.
EP06753813A 2005-06-02 2006-05-23 Adjusting shaft arrangement of a turbocharger Expired - Fee Related EP1891301B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200520008606 DE202005008606U1 (en) 2005-06-02 2005-06-02 Setting shaft fitting for supercharger has base body of setting shaft with stepped external outline and bush with complementary internal outline
PCT/EP2006/004906 WO2006128616A1 (en) 2005-06-02 2006-05-23 Adjusting shaft arrangement of a turbocharger

Publications (2)

Publication Number Publication Date
EP1891301A1 EP1891301A1 (en) 2008-02-27
EP1891301B1 true EP1891301B1 (en) 2010-12-29

Family

ID=34833483

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06753813A Expired - Fee Related EP1891301B1 (en) 2005-06-02 2006-05-23 Adjusting shaft arrangement of a turbocharger

Country Status (7)

Country Link
US (1) US8172513B2 (en)
EP (1) EP1891301B1 (en)
JP (1) JP2008542607A (en)
KR (1) KR20080014780A (en)
CN (1) CN101189412B (en)
DE (2) DE202005008606U1 (en)
WO (1) WO2006128616A1 (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1895106A1 (en) * 2006-08-28 2008-03-05 ABB Turbo Systems AG Sealing of variable guide vanes
DE102008057207A1 (en) 2008-11-13 2010-05-27 Continental Mechanical Components Germany Gmbh Shaft device with a sealing device
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DE202005008606U1 (en) 2005-08-04
EP1891301A1 (en) 2008-02-27
WO2006128616A1 (en) 2006-12-07
US20090226304A1 (en) 2009-09-10
JP2008542607A (en) 2008-11-27
CN101189412B (en) 2010-06-23
CN101189412A (en) 2008-05-28
US8172513B2 (en) 2012-05-08
KR20080014780A (en) 2008-02-14
DE502006008610D1 (en) 2011-02-10

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