EP2209969A2 - Supercharger device - Google Patents

Supercharger device

Info

Publication number
EP2209969A2
EP2209969A2 EP08851470A EP08851470A EP2209969A2 EP 2209969 A2 EP2209969 A2 EP 2209969A2 EP 08851470 A EP08851470 A EP 08851470A EP 08851470 A EP08851470 A EP 08851470A EP 2209969 A2 EP2209969 A2 EP 2209969A2
Authority
EP
European Patent Office
Prior art keywords
bearing
ring
dowel pin
roller
blade
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
EP08851470A
Other languages
German (de)
French (fr)
Other versions
EP2209969B1 (en
Inventor
Patric Hoecker
Florian Rentz
Ian Reynolds
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.)
BMTS Technology GmbH and Co KG
Original Assignee
Bosch Mahle Turbo Systems GmbH and Co KG
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 Bosch Mahle Turbo Systems GmbH and Co KG filed Critical Bosch Mahle Turbo Systems GmbH and Co KG
Publication of EP2209969A2 publication Critical patent/EP2209969A2/en
Application granted granted Critical
Publication of EP2209969B1 publication Critical patent/EP2209969B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/24—Control of the pumps by using pumps or turbines with adjustable guide vanes
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/50—Building or constructing in particular ways
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins

Definitions

  • the present invention relates to a charging device, in particular an exhaust gas turbocharger for a motor vehicle.
  • the invention also relates to a combustion engine equipped with such a charging device for a motor vehicle.
  • Exhaust gas turbochargers are usually used to increase the performance of piston engines, in which they increase an air and fuel flow rate per stroke.
  • the exhaust gas turbocharger driven by the exhaust gas flow of the piston engine compresses the air supplied to the combustion chamber, whereby it may be advantageous to decouple the compressed air flow supplied to the combustion chamber from the exhaust gas flow due to different engine operating conditions, thus improving in particular an efficiency, a response or an operating range of the exhaust gas turbocharger can be.
  • Such an intervention for controlling the exhaust-gas turbocharger can be achieved, for example, by a variable geometry of the nozzle channels leading to the turbine wheel.
  • an exhaust gas turbocharger with a variable turbine geometry is known, which is realized via a blade bearing ring with rotatably mounted thereon guide vanes, wherein the guide vanes together via a coaxial with the blade bearing ring and with respect to this ro tierbar mounted adjusting ring are adjustable.
  • the adjusting ring overlapping roller bearings can be stored exclusively in the blade bearing ring or additionally in a housing part, which indeed improves the storage, the installation, that is, the assembly, but much more difficult.
  • the present invention addresses the problem of providing a generic charging device an improved embodiment, which is characterized in particular by an improved storage of an adjusting ring.
  • the invention is based on the general idea of supporting an adjusting ring coupled to the guide vanes of a vane device via sliding or roller bearings, these sliding or roller bearings being provided on a respective locating pin which penetrates a vane bearing ring carrying the vanes and whose distance from a housing or defined to an arranged in this insert / cover disk element.
  • the adjusting ring is there arranged at coaxial with the blade bearing ring and mounted on the mentioned roller or slide bearing on this. About a rotation of the adjusting ring with respect to the blade bearing ring, the setting of the bearing blades mounted on the blade bearing ring is effected.
  • the storage of the adjusting can on the one hand simplifies and on the other hand, the variety of parts of the charging device according to the invention can be reduced because the roller or plain bearings now no longer need to be mounted separately from the dowel pins on the vane ring, but can be set via the dowel pins on the vane ring.
  • the dowel pins thus fulfill two tasks simultaneously, namely on the one hand to define an axial distance between the blade bearing ring and a housing or arranged in this insert / cover disk element and on the other hand to act as a carrier for the sliding or roller bearings.
  • the charging device can be made structurally simpler, which helps to keep maintenance and repair costs low and at the same time to reduce the production costs for the charging device according to the invention.
  • the supported by the dowel pins roller or plain bearings also ensure a particularly smooth-running storage of the adjusting ring and thus for a particularly high storage quality.
  • the high bearing quality is also responsible for the high positioning accuracy of the vane. lent, so that the charging device according to the invention can be adapted particularly precisely to the respective operating situation.
  • a roller bearing with a rotatably mounted bearing roller is provided on each dowel pin.
  • a rotatably mounted bearing roller can also be easily and therefore produced inexpensively and also ensures a particularly smooth mounting of the adjusting ring.
  • the adjusting ring can be guided via an annular groove, which is embedded in the respective bearing roller on the circumferential side and into which the adjusting ring engages.
  • At least one dowel pin on its end bearing the roller bearing on a collar which forms an axial stop for the bearing roller is conceivable, in particular, for example, clamping pins or locknuts.
  • At least one dowel pin expediently has a first radial step, via which it is supported on the vane bearing ring, wherein an axial distance between the first radial level and the collar of the dowel pin is greater than an axial extent of the roller bearing or the bearing roller, so that it is arranged with play between the blade bearing ring and the collar of the dowel pin.
  • the first radial stage By means of the first radial stage according to the invention, it is possible to predetermine an axial distance or an exact position of the dowel pin to the blade bearing ring, the axial distance between the blade bearing ring and the collar of the dowel pin still remaining for the bearing roller being greater than the axial longitudinal extent of the bearing Bearing roller, so that it can always be stored smoothly and without jamming over the dowel pin on the blade bearing ring. Another measure to secure the jam-free storage of the bearing roller is therefore not required, the first radial stage manufacturing technology is easy to manufacture and thus does not burden the charger with additional, for example, separately manufactured spacers.
  • FIGS. 1 to 9 each show a loading device with a roller or slide bearing arranged on a dowel pin according to the invention for supporting an adjusting ring on the blade bearing ring.
  • a charging device 1 which is only partially shown, which is designed, for example, as an exhaust-gas turbocharger for a motor vehicle, has a vane device 2 with which a variable turbine and / or compressor geometry can be realized.
  • the vane device 2 comprises at least one vane bearing ring 3 with guide vanes 4 rotatably mounted thereon / and an adjusting ring 5 arranged coaxially with the vane ring 3, via which the vanes 4 are jointly adjustable.
  • the guide vanes 4 are rotatably mounted on the blade bearing ring 3 by means of blade pins 6, wherein the blade pins 6 pass through the blade bearing ring 3 axially and are connected to the guide blade 4 at one end and to a blade lever 7 at one end , which each carries a radially outwardly directed lever head 8 and thus engages in a corresponding, not shown recess on the adjusting ring 5.
  • a rotational movement of the adjusting ring 5 with respect to the blade bearing ring 3 thus causes a uniform rotational movement of all vanes 4 about the blade pin. 6
  • the invention provides that a bearing of the adjusting 5 on the blade bearing ring 3 via sliding or roller bearings, each arranged on a, the blade bearing ring 3 penetrating dowel pin 9 are.
  • the dowel pin 9 has the task of defining an axial spacing of the blade bearing ring 3 with respect to a housing or with an insert part / cover disk element 10 arranged in the latter. 1, there is a radial gap between the dowel pin 9 and the blade bearing ring 3, whereby an at least certain radial and axial displaceability of the blade bearing ring 3 with respect to the housing 10 is given.
  • This mobility makes it possible to compensate for strains and / or tolerances better and at least reduces the risk of jamming of the guide vanes. 4
  • the roller bearing has a rotatably mounted bearing roller 11 which is arranged in the axial direction on the one hand adjacent to the blade bearing ring 3 and on the other hand to an axial stop 12, for example a nut.
  • the distance between the blade bearing ring 3 of a on the other hand, in the embodiment according to FIG. 1, two radial stages, namely a second radial stage 13 and a third radial stage 14 are delimited.
  • the dowel pin 9 is supported on the insert part / cover disk element 10, while it is supported on the blade bearing ring 3 via the third radial step 14.
  • Such radial stages 13, 14 can be produced particularly simply, for example by a turning process, and thus do not require a spacer sleeve 15 to be provided in this area, as proposed for example in FIGS. 5, 6, 8 and 9.
  • a further, namely a fourth radial step 16 may be provided, against which the axial stop 12 rests in the assembled state.
  • the bearing roller 11 is shown in FIG. 1 mounted smoothly on the dowel pin 9, wherein the predetermined by the radial stages 14 and 16 axial distance between the axial stop 12 and the blade bearing ring 3 is greater than the axial longitudinal extent of the bearing roller 11, so that this can be stored without jamming in any case.
  • the dowel pin 9 may also have a collar 17 at its end bearing the bearing roller 11, as shown for example in FIGS. 6 and 9.
  • This collar 17 forms another embodiment for an axial stop 12.
  • Another possibility for an axial stop 12 is a bearing sleeve 18 having a collar, as shown for example in accordance with FIG. 2.
  • the bearing sleeve 18 is between the dowel pin 9 and the associated roller bearing, that is, the bearing roller 11, arranged, wherein the bearing sleeve 18 has a greater axial extent than the bearing roller 11 so that they play with between the blade bearing ring 3 and the collar of the bearing sleeve 18 is arranged.
  • the bearing rollers 11 shown in FIGS. 1 to 7 and 9 may also be formed as sliding bearings, so that they are not rotatably mounted with respect to the dowel pin 9, but the adjusting 5 mounted in a circumferential groove 19 of the bearing roller 11 designed as a sliding bearing, in particular is guided.
  • the dowel pin 9 is formed without radial stages, which is why in this case for reliable definition of the axial distance between the blade bearing ring 3 on the one hand and the insert / cover plate member 10 on the other hand, the dowel pin 9 both with the insert / cover plate member 10 as well firmly connected to the blade bearing ring 3, in particular is pressed.
  • the bearing roller 11 may be formed as a sliding bearing. Looking at the embodiment of FIG.
  • the dowel pin 9 has a first radial step 20, via which it is supported on the blade bearing ring 3 and wherein an axial distance between the first radial step 20 and the collar 17 of the dowel pin 9 is greater as the axial extent of the bearing roller 11, so that it can be arranged with play between the blade bearing ring 3 and the collar 17 of the dowel pin 9. Also in this case, a jam-free storage of the bearing roller 11 is given.
  • an attachment of the dowel pin 9 on the insert / cover disk element 10 or on the housing by means of rivets, screws or welding is provided.
  • Figs. 1-4 and 7 of the dowel pin 9 is shown in not riveted state.
  • Figs. 5 and 8 and 9 the Pass pin 9 are also screwed into the insert / cover plate member 10.
  • a bearing head 21 with a circumferential groove 19 is provided on an adjusting ring 5 facing the end of the dowel pin 9, in which the adjusting ring 5 is slidably guided.
  • at least three bearing rollers 11 or three bearing heads 21 are provided with a lying between two bearing rollers 11 / bearing heads 21 angle range of 120 °.
  • four or more bearing rollers 11 are provided.
  • the charging device 1 makes it possible to realize a particularly simple and highly functional mounting of the adjusting ring 5 on the blade bearing ring 3, since the dowel pins 9 which define an axial spacing between the blade bearing ring 3 and the insert part / cover disk element 10 also act as supports for the adjusting ring 5 stock bearing rollers 11 and bearing heads 21 act. This also achieves a reduction in the variety of parts, which can also reduce storage and logistics costs.

Abstract

The invention relates to a supercharger device (1), in particular an exhaust gas turbocharger for a motor vehicle, with a variable turbo and/or compressor geometry and a guide vane device (2) arranged in a housing (10), comprising at least one vane mounting ring (3) with guide vanes (4) rotatably mounted thereon or therein and an adjuster ring (5) arranged coaxially to the vane mounting ring (3), which may rotate relative to the vane mounting ring (3) and by means of which the guide vanes (4) may be adjusted. The idea of the invention is that the mounting for the adjuster ring (5) on the vane mounting ring (3) is achieved by slide or roller bearings each arranged on a locating pin (9) passing through the vane mounting ring (3), wherein the locating pins (9) define an axial separation of the vane mounting ring (3) from the housing or to an insert piece or cover disc arrangement (10) arranged therein.

Description

Ladeeinrichtung loader
Die vorliegende Erfindung betrifft eine Ladeeinrichtung, insbesondere einen Abgasturbolader für ein Kraftfahrzeug. Die Erfindung betrifft außerdem einen mit einer derartigen Ladeeinrichtung ausgestatten Verbrennungsmotor für ein Kraftfahrzeug.The present invention relates to a charging device, in particular an exhaust gas turbocharger for a motor vehicle. The invention also relates to a combustion engine equipped with such a charging device for a motor vehicle.
Abgasturbolader werden üblicherweise zur Leistungssteigerung von Kolbenmotoren eingesetzt, bei welchen sie einen Luft- und Kraftstoffdurchsatz pro Arbeitstakt erhöhen. Der vom Abgasstrom des Kolbenmotors angetriebene Abgasturbolader verdichtet die dem Brennraum zugeführte Luft, wobei es aufgrund unterschiedlicher Motorbetriebszustände von Vorteil sein kann, den dem Brennraum zugeführten verdichteten Luftstrom von dem Abgasstrom zu entkoppeln, so dass insbesondere ein Wirkungsgrad, ein Ansprechverhalten oder ein Betriebsbereich des Abgasturboladers verbessert werden können. Ein derartiger Eingriff zur Steuerung des Abgasturboladers kann beispielsweise durch eine variable Geometrie der zum Turbinenrad führenden Düsenkanäle erreicht werden.Exhaust gas turbochargers are usually used to increase the performance of piston engines, in which they increase an air and fuel flow rate per stroke. The exhaust gas turbocharger driven by the exhaust gas flow of the piston engine compresses the air supplied to the combustion chamber, whereby it may be advantageous to decouple the compressed air flow supplied to the combustion chamber from the exhaust gas flow due to different engine operating conditions, thus improving in particular an efficiency, a response or an operating range of the exhaust gas turbocharger can be. Such an intervention for controlling the exhaust-gas turbocharger can be achieved, for example, by a variable geometry of the nozzle channels leading to the turbine wheel.
Aus der DE 102 62 006 B4 ist ein Abgasturbolader mit einer variablen Turbinengeometrie bekannt, die über einen Schaufellagerring mit drehbar daran/darin gelagerten Leitschaufeln realisiert wird, wobei die Leitschaufeln zusammen über einen koaxial zum Schaufellagerring und bezüglich diesem ro- tierbar gelagerten Verstellring verstellbar sind. Am Schaufellagerring sind dabei zumindest drei Rollenlager drehbar gelagert, welche ihrerseits über eine jeweilige Umfangsnut den Verstellring lagern. Die den Verstellring lagernden Rollenlager können dabei ausschließlich im Schaufellagerring gelagert sein oder aber zusätzlich in einem Gehäuseteil, was die Lagerung zwar verbessert, den Einbau, das heißt die Montage, jedoch deutlich erschwert.From DE 102 62 006 B4 an exhaust gas turbocharger with a variable turbine geometry is known, which is realized via a blade bearing ring with rotatably mounted thereon guide vanes, wherein the guide vanes together via a coaxial with the blade bearing ring and with respect to this ro tierbar mounted adjusting ring are adjustable. At the blade bearing ring while at least three roller bearings are rotatably mounted, which in turn store the adjusting ring via a respective circumferential groove. The adjusting ring overlapping roller bearings can be stored exclusively in the blade bearing ring or additionally in a housing part, which indeed improves the storage, the installation, that is, the assembly, but much more difficult.
Eine weitere Ladeeinrichtung mit einer variablen Turbinengeometrie ist beispielsweise aus der EP 1 009 918 Bl bekannt.Another charging device with a variable turbine geometry is known for example from EP 1 009 918 Bl.
Die vorliegende Erfindung beschäftigt sich mit dem Problem, für eine gattungsgemäße Ladeeinrichtung eine verbesserte Ausführungsform anzugeben, welche sich insbesondere durch eine verbesserte Lagerung eines Verstellringes auszeichnet.The present invention addresses the problem of providing a generic charging device an improved embodiment, which is characterized in particular by an improved storage of an adjusting ring.
Dieses Problem wird erfindungsgemäß durch die Gegenstände der unabhängigen Ansprüche gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This problem is solved according to the invention by the subject matters of the independent claims. Advantageous embodiments are the subject of the dependent claims.
Die Erfindung beruht auf dem allgemeinen Gedanken, einen mit den Leitschaufeln einer Leitschaufeleinrichtung gekoppelten Verstellring über Gleit- oder Rollenlager zu lagern, wobei diese Gleit- oder Rollenlager an einem jeweiligen Passstift vorgesehen sind, welcher einen die Leitschaufeln tragenden Schaufellagerring durchdringt und dessen Abstand zu einem Gehäuse oder zu einem in diesem angeordneten Einlegeteil/Deckscheibenelement definiert. Der Verstellring ist da- bei koaxial zum Schaufellagerring angeordnet und über die erwähnten Rollen- beziehungsweise Gleitlager an diesem gelagert. Über eine Rotation des Verstellring bezüglich des Schaufellagerrings, wird die Einstellung der am Schaufellagerring gelagerten Leitschaufeln bewirkt. Durch die Lagerung des Verstellringes am Schaufellagerring über Gleit- oder Rollenlager, welche jeweils auf einem, den Schaufellagerring durchdringenden Passstift angeordnet sind, kann die Lagerung des Verstellringes einerseits vereinfacht und andererseits die Teilevielfalt der erfindungsgemäßen Ladeeinrichtung reduziert werden, da die Rollen- beziehungsweise die Gleitlager nun nicht mehr separat von den Passstiften am Schaufellagerring montiert werden müssen, sondern über die Passstifte am Schaufellagerring festgelegt werden können. Die Passstifte erfüllen somit zwei Aufgaben gleichzeitig, nämlich einerseits einen Axialabstand zwischen dem Schaufellagerring und einem Gehäuse beziehungsweise einem in diesem angeordneten Einlegeteil/Deckscheibenelement zu definieren und andererseits als Träger für das Gleit- beziehungsweise Rollenlager zu fungieren. Hierdurch lässt sich insbesondere auch die Ladeeinrichtung konstruktiv einfacher ausgestalten, was dazu beiträgt, einen Wartungs- beziehungsweise Reparaturaufwand gering zu halten und gleichzeitig die Herstellungskosten für die erfindungsgemäße Ladeeinrichtung zu senken. Die von den Passstiften getragenen Rollen- beziehungsweise Gleitlager sorgen darüber hinaus für eine besonders leichtgängige Lagerung des Verstellringes und dadurch für eine besonders hohe Lagerqualität. Die hohe Lagerqualität zeichnet dabei auch für eine hohe Stellgenauigkeit der Leitschaufel verantwort- lieh, wodurch sich die erfindungsgemäße Ladeeinrichtung besonders exakt an die jeweilige Betriebssituation anpassen lässt .The invention is based on the general idea of supporting an adjusting ring coupled to the guide vanes of a vane device via sliding or roller bearings, these sliding or roller bearings being provided on a respective locating pin which penetrates a vane bearing ring carrying the vanes and whose distance from a housing or defined to an arranged in this insert / cover disk element. The adjusting ring is there arranged at coaxial with the blade bearing ring and mounted on the mentioned roller or slide bearing on this. About a rotation of the adjusting ring with respect to the blade bearing ring, the setting of the bearing blades mounted on the blade bearing ring is effected. Due to the mounting of the adjusting ring on the blade bearing ring via sliding or roller bearings, which are each arranged on one, the blade bearing ring penetrating dowel, the storage of the adjusting can on the one hand simplifies and on the other hand, the variety of parts of the charging device according to the invention can be reduced because the roller or plain bearings now no longer need to be mounted separately from the dowel pins on the vane ring, but can be set via the dowel pins on the vane ring. The dowel pins thus fulfill two tasks simultaneously, namely on the one hand to define an axial distance between the blade bearing ring and a housing or arranged in this insert / cover disk element and on the other hand to act as a carrier for the sliding or roller bearings. In this way, in particular, the charging device can be made structurally simpler, which helps to keep maintenance and repair costs low and at the same time to reduce the production costs for the charging device according to the invention. The supported by the dowel pins roller or plain bearings also ensure a particularly smooth-running storage of the adjusting ring and thus for a particularly high storage quality. The high bearing quality is also responsible for the high positioning accuracy of the vane. lent, so that the charging device according to the invention can be adapted particularly precisely to the respective operating situation.
Bei einer vorteilhaften Weiterbildung der erfindungsgemäßen Lösung ist auf jedem Passstift ein Rollenlager mit einer drehbar gelagerten Lagerrolle vorgesehen. Eine derart drehbar gelagerte Lagerrolle lässt sich ebenfalls einfach und dadurch kostengünstig herstellen und gewährleistet zudem eine besonders leichtgängige Lagerung des Verstellringes. Geführt werden kann dabei der Verstellring über eine umfangs- seitig in die jeweilige Lagerrolle eingelassene Ringnut, in welche der Verstellring eingreift.In an advantageous development of the solution according to the invention, a roller bearing with a rotatably mounted bearing roller is provided on each dowel pin. Such a rotatably mounted bearing roller can also be easily and therefore produced inexpensively and also ensures a particularly smooth mounting of the adjusting ring. In this case, the adjusting ring can be guided via an annular groove, which is embedded in the respective bearing roller on the circumferential side and into which the adjusting ring engages.
Bei einer weiteren vorteilhaften Ausführungsform der erfindungsgemäßen Lösung weist zumindest ein Passstift an seinem das Rollenlager tragenden Ende einen Kragen auf, der einen Axialanschlag für die Lagerrolle bildet. Ein derartig am Passstift angeformter Kragen lässt sich einfach und vorzugsweise in einem einzigen, gemeinsamen Arbeitsschritt zusammen mit dem Passstift herstellen, wobei der Passstift mit seinem dem Kragen abgewandten Längsende durch den Schaufellagerring gesteckt werden muss. Selbstverständlich sind auch andere Axialanschläge für die Lagerrolle denkbar, insbesondere beispielsweise Klemmstifte oder Kontermuttern.In a further advantageous embodiment of the solution according to the invention, at least one dowel pin on its end bearing the roller bearing on a collar which forms an axial stop for the bearing roller. Such a collar formed on the dowel pin can be easily and preferably produced in a single, common step together with the dowel pin, the dowel pin must be inserted with its longitudinal end facing away from the collar through the blade bearing ring. Of course, other axial stops for the bearing roller are conceivable, in particular, for example, clamping pins or locknuts.
Zweckmäßig weist zumindest ein Passstift eine erste Radialstufe auf, über welche sich dieser am Schaufellagerring abstützt, wobei ein Axialabstand zwischen der ersten Radial- stufe und dem Kragen des Passstiftes größer ist als eine A- xialausdehnung des Rollenlagers beziehungsweise der Lagerrolle, so dass diese mit Spiel zwischen dem Schaufellagerring und dem Kragen des Passstiftes angeordnet ist. Über die erfindungsgemäße erste Radialstufe lässt sich ein Axialabstand beziehungsweise eine genaue Position des Passstiftes zum Schaufellagerring vorherbestimmen, wobei bei einem Anliegen der ersten Radialstufe am Schaufellagerring der noch für die Lagerrolle verbleibende Axialabstand zwischen dem Schaufellagerring und dem Kragen des Passstiftes größer ist als die axiale Längserstreckung der Lagerrolle, so dass diese stets leichtgängig und verklemmungsfrei über den Passstift am Schaufellagerring gelagert werden kann. Eine weitere Maßnahme zur Sicherung der klemmfreien Lagerung der Lagerrolle ist daher nicht erforderlich, wobei die erste Radialstufe fertigungstechnisch einfach herzustellen ist und dadurch die Ladeeinrichtung nicht mit zusätzlichen, beispielsweise separat herzustellenden Abstandselementen belastet.At least one dowel pin expediently has a first radial step, via which it is supported on the vane bearing ring, wherein an axial distance between the first radial level and the collar of the dowel pin is greater than an axial extent of the roller bearing or the bearing roller, so that it is arranged with play between the blade bearing ring and the collar of the dowel pin. By means of the first radial stage according to the invention, it is possible to predetermine an axial distance or an exact position of the dowel pin to the blade bearing ring, the axial distance between the blade bearing ring and the collar of the dowel pin still remaining for the bearing roller being greater than the axial longitudinal extent of the bearing Bearing roller, so that it can always be stored smoothly and without jamming over the dowel pin on the blade bearing ring. Another measure to secure the jam-free storage of the bearing roller is therefore not required, the first radial stage manufacturing technology is easy to manufacture and thus does not burden the charger with additional, for example, separately manufactured spacers.
Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Other important features and advantages of the invention will become apparent from the dependent claims, from the drawings and from the associated figure description with reference to the drawings.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen. Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Bauteile beziehen .It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention. Preferred embodiments of the invention are illustrated in the drawings and will be described in more detail in the following description, wherein like reference numerals refer to the same or similar or functionally identical components.
Dabei zeigen, jeweils schematisch,Show, in each case schematically,
Fig. 1 bis 9 jeweils eine Ladeeinrichtung mit einem erfind- dungsgemäß auf einem Passstift angeordneten Rollen- oder Gleitlager zur Lagerung eines Verstellringes am Schaufellagerring.FIGS. 1 to 9 each show a loading device with a roller or slide bearing arranged on a dowel pin according to the invention for supporting an adjusting ring on the blade bearing ring.
Entsprechend der Fig. 1 weist eine lediglich teilweise dargestellte Ladeeinrichtung 1, welche beispielsweise als Abgasturbolader für ein Kraftfahrzeug ausgebildet ist, eine Leitschaufeleinrichtung 2 auf, mit welcher eine variable Turbinen- und/oder Verdichtergeometrie realisierbar ist. Die Leitschaufeleinrichtung 2 umfasst dabei zumindest einen Schaufellagerring 3 mit drehbar daran/darin gelagerten Leitschaufeln 4 sowie einem koaxial zum Schaufellagerring 3 angeordneten Verstellring 5, über welchen die Leitschaufeln 4 gemeinsam verstellbar sind. Wie der Fig. 1 dabei zu entnehmen ist, sind die Leitschaufeln 4 mittels Schaufelzapfen 6 am Schaufellagerring 3 drehbar gelagert, wobei die Schaufelzapfen 6 den Schaufellagerring 3 axial durchsetzen und jeweils drehfest einenends mit der Leitschaufel 4 und andere- nends mit einem Schaufelhebel 7 verbunden sind, welcher jeweils einen radial nach außen gerichteten Hebelkopf 8 trägt und damit in eine korrespondierende, nicht dargestellte Ausnehmung am Verstellring 5 eingreift. Eine Rotationsbewegung des Verstellringes 5 bezüglich des Schaufellagerringes 3 bewirkt somit eine gleichmäßige Drehbewegung sämtlicher Leitschaufeln 4 um deren Schaufelzapfen 6.According to FIG. 1, a charging device 1, which is only partially shown, which is designed, for example, as an exhaust-gas turbocharger for a motor vehicle, has a vane device 2 with which a variable turbine and / or compressor geometry can be realized. In this case, the vane device 2 comprises at least one vane bearing ring 3 with guide vanes 4 rotatably mounted thereon / and an adjusting ring 5 arranged coaxially with the vane ring 3, via which the vanes 4 are jointly adjustable. 1, the guide vanes 4 are rotatably mounted on the blade bearing ring 3 by means of blade pins 6, wherein the blade pins 6 pass through the blade bearing ring 3 axially and are connected to the guide blade 4 at one end and to a blade lever 7 at one end , which each carries a radially outwardly directed lever head 8 and thus engages in a corresponding, not shown recess on the adjusting ring 5. A rotational movement of the adjusting ring 5 with respect to the blade bearing ring 3 thus causes a uniform rotational movement of all vanes 4 about the blade pin. 6
Um eine Lagerung des rotierbar bezüglich des Schaufellagerrings 3 ausgebildeten Verstellrings 5 konstruktiv möglichst einfach zu gestalten, ist erfindungsgemäß vorgesehen, dass eine Lagerung des Verstellringes 5 am Schaufellagerring 3 über Gleit- oder Rollenlager erfolgt, die jeweils auf einem, den Schaufellagerring 3 durchdringenden Passstift 9 angeordnet sind. Der Passstift 9 hat dabei zugleich die Aufgabe, einen Axialabstand des Schaufellagerringes 3 zu einem Gehäuse oder zu einem in diesem angeordneten Einlegeteil/Deckscheibenelement 10 zu definieren. Wie insbesondere der Fig. 1 zu entnehmen ist, besteht zwischen dem Passstift 9 und dem Schaufellagerring 3 ein Radialspalt, wodurch eine zumindest gewisse radiale und axiale Verschieblichkeit des Schaufellagerrings3 in Bezug auf das Gehäuse 10 gegeben ist. Diese Verschieblichkeit ermöglicht es, Dehnungen und/oder Toleranzen besser ausgleichen zu können und vermindet zumindest die Gefahr eines Verklemmens der Leitschaufeln 4.In order to design a mounting of the rotatable relative to the blade bearing ring 3 formed adjusting 5 constructive as simple as possible, the invention provides that a bearing of the adjusting 5 on the blade bearing ring 3 via sliding or roller bearings, each arranged on a, the blade bearing ring 3 penetrating dowel pin 9 are. At the same time, the dowel pin 9 has the task of defining an axial spacing of the blade bearing ring 3 with respect to a housing or with an insert part / cover disk element 10 arranged in the latter. 1, there is a radial gap between the dowel pin 9 and the blade bearing ring 3, whereby an at least certain radial and axial displaceability of the blade bearing ring 3 with respect to the housing 10 is given. This mobility makes it possible to compensate for strains and / or tolerances better and at least reduces the risk of jamming of the guide vanes. 4
Gemäß der Fig. 1 weist dabei das Rollenlager eine drehbar gelagerte Lagerrolle 11 auf, welche in Axialrichtung einerseits benachbart zum Schaufellagerring 3 und andererseits zu einem Axialanschlag 12, beispielsweise einer Mutter angeordnet ist. Der Abstand zwischen dem Schaufellagerring 3 einer- seits und dem Gehäuse 10 andererseits wird bei der Ausführungsform gemäß der Fig. 1 von zwei Radialstufen, nämlich einer zweiten Radialstufe 13 sowie einer dritten Radialstufe 14 begrenzt. Über die zweite Radialstufe 13 stützt sich der Passstift 9 am Einlegeteil/Deckscheibenelement 10 ab, während er sich über die dritte Radialstufe 14 am Schaufellagerring 3 abstützt. Derartige Radialstufen 13, 14 lassen sich besonders einfach, beispielsweise durch einen Drehvorgang herstellen und erübrigen somit eine in diesem Bereich vorzusehende Abstandshülse 15, wie diese beispielsweise in den Fig. 5, 6, 8 und 9 vorgeschlagen ist.According to FIG. 1, the roller bearing has a rotatably mounted bearing roller 11 which is arranged in the axial direction on the one hand adjacent to the blade bearing ring 3 and on the other hand to an axial stop 12, for example a nut. The distance between the blade bearing ring 3 of a On the other hand, in the embodiment according to FIG. 1, two radial stages, namely a second radial stage 13 and a third radial stage 14 are delimited. Via the second radial step 13, the dowel pin 9 is supported on the insert part / cover disk element 10, while it is supported on the blade bearing ring 3 via the third radial step 14. Such radial stages 13, 14 can be produced particularly simply, for example by a turning process, and thus do not require a spacer sleeve 15 to be provided in this area, as proposed for example in FIGS. 5, 6, 8 and 9.
Um auch den Axialanschlag 12 mit definiertem Axialabstand zum Schaufellagerring 3 festlegen zu können, kann eine weitere, nämlich eine vierte Radialstufe 16 vorgesehen sein, an welcher der Axialanschlag 12 in montiertem Zustand anliegt. Die Lagerrolle 11 ist dabei gemäß der Fig. 1 leichtgängig auf dem Passstift 9 gelagert, wobei der durch die Radialstufen 14 und 16 vorgegebene Axialabstand zwischen dem Axialanschlag 12 und dem Schaufellagerring 3 größer ist als die a- xiale Längserstreckung der Lagerrolle 11, so dass diese auf jeden Fall klemmfrei gelagert werden kann. Gleiches gilt auch für die Leitschaufeln 4, da der Axialabstand zwischen dem Gehäuse 10 und dem Schaufellagerring 3, der durch die zweite und dritte Radialstufe 13, 14 begrenzt ist, ein Einklemmen der Leitschaufeln 4 zwischen dem Schaufellagerring 3 und dem Einlegeteil/Deckscheibenelement 10 zuverlässig verhindert . Anstelle des gemäß der Fig. 1 dargestellten Axialanschlages 12 kann der Passstift 9 an seinem die Lagerrolle 11 tragenden Ende auch einen Kragen 17 aufweisen, wie dies beispielsweise in den Fig. 6 und 9 dargestellt ist. Dieser Kragen 17 bildet dabei eine andere Ausführungsform für einen Axialanschlag 12. Eine weitere Möglichkeit für einen Axialanschlag 12 bildet eine, einen Kragen aufweisende Lagerhülse 18, wie diese beispielsweise gemäß der Fig. 2 dargestellt ist. Die Lagerhülse 18 ist dabei zwischen dem Passstift 9 und dem zugehörigen Rollenlager, das heißt der Lagerrolle 11, angeordnet, wobei die Lagerhülse 18 eine größere axiale Ausdehnung aufweist als die Lagerrolle 11, so dass diese mit Spiel zwischen dem Schaufellagerring 3 und dem Kragen der Lagerhülse 18 angeordnet ist. Dabei können die gemäß den Fig. 1 bis 7 und 9 gezeigten Lagerrollen 11 auch als Gleitlager ausgebildet sein, so dass diese nicht bezüglich des Passstiftes 9 drehbar gelagert sind, sondern der Verstellring 5 in einer Umfangsnut 19 der als Gleitlager ausgebildeten Lagerrolle 11 gelagert, insbesondere geführt ist.In order to fix the axial stop 12 with defined axial distance to the blade bearing ring 3, a further, namely a fourth radial step 16 may be provided, against which the axial stop 12 rests in the assembled state. The bearing roller 11 is shown in FIG. 1 mounted smoothly on the dowel pin 9, wherein the predetermined by the radial stages 14 and 16 axial distance between the axial stop 12 and the blade bearing ring 3 is greater than the axial longitudinal extent of the bearing roller 11, so that this can be stored without jamming in any case. The same applies to the guide vanes 4, since the axial distance between the housing 10 and the blade bearing ring 3, which is bounded by the second and third radial stage 13, 14, reliably prevents trapping of the guide vanes 4 between the blade bearing ring 3 and the insert / cover disk element 10 , Instead of the axial stop 12 shown in FIG. 1, the dowel pin 9 may also have a collar 17 at its end bearing the bearing roller 11, as shown for example in FIGS. 6 and 9. This collar 17 forms another embodiment for an axial stop 12. Another possibility for an axial stop 12 is a bearing sleeve 18 having a collar, as shown for example in accordance with FIG. 2. The bearing sleeve 18 is between the dowel pin 9 and the associated roller bearing, that is, the bearing roller 11, arranged, wherein the bearing sleeve 18 has a greater axial extent than the bearing roller 11 so that they play with between the blade bearing ring 3 and the collar of the bearing sleeve 18 is arranged. The bearing rollers 11 shown in FIGS. 1 to 7 and 9 may also be formed as sliding bearings, so that they are not rotatably mounted with respect to the dowel pin 9, but the adjusting 5 mounted in a circumferential groove 19 of the bearing roller 11 designed as a sliding bearing, in particular is guided.
Gemäß den Fig. 4 und 5 ist der Passstift 9 ohne Radialstufen ausgebildet, weswegen in diesem Fall zur zuverlässigen Definition des Axialabstandes zwischen dem Schaufellagerring 3 einerseits und dem Einlegeteil/Deckscheibenelement 10 andererseits, der Passstift 9 sowohl mit dem Einlegeteil/Deckscheibenelement 10 als auch mit dem Schaufellagerring 3 fest verbunden, insbesondere verpresst ist. Auch bei diesen Ausführungsformen kann die Lagerrolle 11 als Gleitlager ausgebildet sein. Betrachtet man die Ausführungsform gemäß der Fig. 6, so fällt auf, dass der Passstift 9 eine erste Radialstufe 20 aufweist, über welche sich dieser am Schaufellagerring 3 abstützt und wobei ein Axialabstand zwischen der ersten Radialstufe 20 und dem Kragen 17 des Passstiftes 9 größer ist als die axiale Ausdehnung der Lagerrolle 11, so dass diese mit Spiel zwischen dem Schaufellagerring 3 und dem Kragen 17 des Passstiftes 9 angeordnet werden kann. Auch in diesem Fall ist eine verklemmfreie Lagerung der Lagerrolle 11 gegeben .4 and 5, the dowel pin 9 is formed without radial stages, which is why in this case for reliable definition of the axial distance between the blade bearing ring 3 on the one hand and the insert / cover plate member 10 on the other hand, the dowel pin 9 both with the insert / cover plate member 10 as well firmly connected to the blade bearing ring 3, in particular is pressed. Also in these embodiments, the bearing roller 11 may be formed as a sliding bearing. Looking at the embodiment of FIG. 6, it is striking that the dowel pin 9 has a first radial step 20, via which it is supported on the blade bearing ring 3 and wherein an axial distance between the first radial step 20 and the collar 17 of the dowel pin 9 is greater as the axial extent of the bearing roller 11, so that it can be arranged with play between the blade bearing ring 3 and the collar 17 of the dowel pin 9. Also in this case, a jam-free storage of the bearing roller 11 is given.
Im Unterschied zur Fig. 6, bei welcher die Abstandshülse 15 stirnendseitig auf dem Einlegeteil/Deckscheibenelement 10 beziehungsweise dem Schaufellagerring 3 aufliegt, sind die Abstandshülsen 15 gemäß den Fig. 8 und 9 jeweils in den Schaufellagerring 3 einerseits und in das Gehäuse 10 andererseits eingelassen. Hierdurch ist es möglich, den Passstift 9 thermisch von den die Leitschaufeln 4 umströmenden heißen Abgasen zu entkoppeln, wodurch der Passstift 9 insgesamt geschützt angeordnet ist.In contrast to FIG. 6, in which the spacer sleeve 15 rests on the end part / cover disk element 10 or the blade bearing ring 3, the spacer sleeves 15 according to FIGS. 8 and 9 are inserted into the blade bearing ring 3 on the one hand and into the housing 10 on the other hand. This makes it possible to decouple the dowel pin 9 thermally from the vanes 4 flowing around the hot exhaust gases, whereby the dowel pin 9 is arranged protected overall.
Vorzugsweise ist bei allen dargestellten Ladeeinrichtungen 1 eine Befestigung des Passstiftes 9 am Einlegeteil/Deckscheibenelement 10 bzw. am Gehäuse mittels Nieten, Schrauben oder Schweißen vorgesehen. Dabei ist beispielsweise in den Fig. 1-4 und 7 der Passstift 9 in nicht vernietetem Zustand gezeigt. In den Fig. 5 sowie 8 und 9 kann der Passstift 9 auch in das Einlegeteil/Deckscheibenelement 10 eingeschraubt werden.Preferably, in all the illustrated charging devices 1, an attachment of the dowel pin 9 on the insert / cover disk element 10 or on the housing by means of rivets, screws or welding is provided. Here, for example, in Figs. 1-4 and 7 of the dowel pin 9 is shown in not riveted state. In Figs. 5 and 8 and 9, the Pass pin 9 are also screwed into the insert / cover plate member 10.
Gemäß der Fig. 8 ist an einem dem Verstellring 5 zugewandten Ende des Passstiftes 9 ein Lagerkopf 21 mit einer Umfangsnut 19 vorgesehen, in welcher der Verstellring 5 gleitend geführt ist. Generell gilt dabei für eine zuverlässige Lagerung des Verstellringes 5 am Schaufellagerring 3, dass zumindest drei Lagerrollen 11 oder drei Lagerköpfe 21 mit einem jeweils zwischen zwei Lagerrollen 11/Lagerköpfen 21 liegenden Winkelbereich von 120° vorgesehen sind. Selbstverständlich ist auch denkbar, dass vier oder mehr Lagerrollen 11 vorgesehen sind.According to FIG. 8, a bearing head 21 with a circumferential groove 19 is provided on an adjusting ring 5 facing the end of the dowel pin 9, in which the adjusting ring 5 is slidably guided. Generally applies to a reliable storage of the adjusting ring 5 on the blade bearing ring 3, that at least three bearing rollers 11 or three bearing heads 21 are provided with a lying between two bearing rollers 11 / bearing heads 21 angle range of 120 °. Of course, it is also conceivable that four or more bearing rollers 11 are provided.
Durch die erfindungsgemäße Ladeeinrichtung 1 lässt sich eine besonders einfache und hoch funktionelle Lagerung des Verstellringes 5 am Schaufellagerring 3 realisieren, da die Passstifte 9, welche einen Axialabstand zwischen dem Schaufellagerring 3 und dem Einlegeteil/Deckscheibenelement 10 definieren, zugleich als Träger für die den Verstellring 5 lagernden Lagerrollen 11 beziehungsweise Lagerköpfe 21 fungieren. Dadurch wird zudem eine Reduktion der Teilevielfalt erreicht, wodurch sich auch die Lager- und Logistikkosten reduzieren lassen.The charging device 1 according to the invention makes it possible to realize a particularly simple and highly functional mounting of the adjusting ring 5 on the blade bearing ring 3, since the dowel pins 9 which define an axial spacing between the blade bearing ring 3 and the insert part / cover disk element 10 also act as supports for the adjusting ring 5 stock bearing rollers 11 and bearing heads 21 act. This also achieves a reduction in the variety of parts, which can also reduce storage and logistics costs.
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Claims

Ansprüche claims
1. Ladeeinrichtung (1), insbesondere ein Abgasturbolader für ein Kraftfahrzeug, mit1. charging device (1), in particular an exhaust gas turbocharger for a motor vehicle, with
- einer variablen Turbinen- und/oder Verdichtergeometrie,a variable turbine and / or compressor geometry,
- einer, in einem Gehäuse (10) angeordneten Leitschaufeleinrichtung (2), umfassend zumindest einen Schaufellagerring (3) mit drehbar daran/darin gelagerten Leitschaufeln (4) und einen koaxial zum Schaufellagerring (3) angeordneten und an diesem gelagerten Verstellring (5) , der relativ zum Schaufellagerring (3) rotierbar ist und über welchen die Leitschaufeln (4) verstellbar sind, dadurch gekennzeichnet, dass eine Lagerung des Verstellrings (5) am Schaufellagerring (3) über Gleit- oder Rollenlager erfolgt, die jeweils auf einem den Schaufellagerring (3) durchdringenden Passstift (9) angeordnet sind, wobei die Passstifte (9) einen Axialabstand des Schaufellagerrings (3) zum Gehäuse oder zu einem in diesem angeordneten Einlegeteil/Deckscheibenelement (10) definieren.a stator vane means (2) arranged in a housing (10), comprising at least one vane bearing ring (3) with vanes (4) rotatably mounted thereon and an adjusting ring (5) coaxial with the vane ring (3) and mounted thereon; which is rotatable relative to the blade bearing ring (3) and over which the guide vanes (4) are adjustable, characterized in that a bearing of the adjusting ring (5) on the blade bearing ring (3) via sliding or roller bearings, each on a the blade bearing ring ( 3) are arranged penetrating dowel pin (9), wherein the dowel pins (9) define an axial distance of the vane bearing ring (3) to the housing or to an insert member / cover disk element (10) arranged therein.
2. Ladeeinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass auf jedem Passstift (9) ein Rollenlager mit einer drehbar gelagerten Lagerrolle (11) vorgesehen ist.2. Loading device according to claim 1, characterized in that on each dowel pin (9) a roller bearing with a rotatably mounted bearing roller (11) is provided.
3. Ladeeinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zumindest ein Passstift (9) an seinem das Rollenlager tragenden Ende einen Kragen (17) aufweist, der einen Axialanschlag (12) für das Rollenlager/die Lagerrolle (11) bildet.3. Loading device according to claim 1 or 2, characterized in that in that at least one dowel pin (9) has at its end bearing the roller bearing a collar (17) which forms an axial stop (12) for the roller bearing / the bearing roller (11).
4. Ladeeinrichtung nach Anspruch 3, dadurch gekennzeichnet, dass zumindest ein Passstift (9) eine erste Radialstufe (20) aufweist, über welche sich dieser am Schaufellagering (3) abstützt, wobei ein Axialabstand zwischen der ersten Radialstufe (20) und dem Kragen (17) des Passstiftes (9) größer ist als eine Axialausdehnung der Lagerrolle (11), so dass diese mit Spiel zwischen dem Schaufellagerring (3) und dem Kragen (17) des Passstiftes (9) angeordnet ist.4. Loading device according to claim 3, characterized in that at least one dowel pin (9) has a first radial step (20), via which it is supported on the blade bearing ring (3), wherein an axial distance between the first radial step (20) and the collar ( 17) of the dowel pin (9) is greater than an axial extent of the bearing roller (11), so that it is arranged with play between the blade bearing ring (3) and the collar (17) of the dowel pin (9).
5. Ladeeinrichtung nach Anspruch 4, dadurch gekennzeichnet, dass zumindest ein Passstift (9) neben der ersten Radialstufe (20) eine zweite Radialstufe (13) aufweist, über welche sich der Passstift (9) am Gehäuse oder an einem in diesem angeordneten Einlegeteil/Deckscheibenelement (10) abstützt, wobei zwischen dem Schaufellagering (3) und dem Gehäuse/Einlegeteil/Deckscheibenelement (10) eine den Passstift (9) umgebende Abstandshülse (15) vorgesehen ist.5. Loading device according to claim 4, characterized in that at least one dowel pin (9) next to the first radial step (20) has a second radial step (13) via which the dowel pin (9) on the housing or on an in this arranged insert / Cover disk element (10) is supported, wherein between the blade bearing ring (3) and the housing / insert / cover disk element (10) a the dowel pin (9) surrounding the spacer sleeve (15) is provided.
6. Ladeeinrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Abstandshülse (15) in der Art der zweiten Radialstufe (13) und einer axial dazu benachbarten dritten Radial- stufe (14) ausgebildet ist, wobei sich der Passstift (9) ü- ber die zweite Radialstufe (14) am Gehäuse oder an dem in diesem angeordneten Einlegeteil/Deckscheibenelement (10) und über die dritte Radialstufe (14) am Schaufellagerring (3) abstützt.6. Loading device according to claim 5, characterized in that the spacer sleeve (15) in the manner of the second radial stage (13) and an axially adjacent thereto third radial stage (14) is formed, wherein the dowel pin (9) via the second radial step (14) on the housing or on the in this arranged insert / cover plate element (10) and the third radial step (14) on the blade bearing ring (3) supported.
7. Ladeeinrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die Abstandshülse (15) in den Schaufellagerring (3) und/oder in das Einlegeteil/Deckscheibenelement (10) eingelassen ist.7. Loading device according to claim 5 or 6, characterized in that the spacer sleeve (15) in the blade bearing ring (3) and / or in the insert / cover plate element (10) is embedded.
8. Ladeeinrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass eine, einen Kragen aufweisende Lagerhülse (18) vorgesehen ist, die zwischen dem Passstift (9) und dem zugehörigen Rollenlager angeordnet ist, wobei die Lagerhülse (18) eine größere axiale Ausdehnung aufweist als das Rollenlager, so dass diese mit Spiel zwischen dem Schaufellagerring (3) und dem Kragen der Lagerhülse (18) angeordnet ist.8. Loading device according to one of claims 1 to 7, characterized in that a collar having a bearing sleeve (18) is provided, which is arranged between the dowel pin (9) and the associated roller bearing, wherein the bearing sleeve (18) has a larger axial Has expansion than the roller bearing, so that it is arranged with play between the blade bearing ring (3) and the collar of the bearing sleeve (18).
9. Ladeeinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass an einem dem Verstellring (5) zugewandten Ende des Passstiftes (9) ein Lagerkopf (21) mit einer Umfangsnut (19) vorgesehen, in welcher der Verstellring (5) gleitend geführt ist .9. Loading device according to claim 1, characterized in that on a the adjusting ring (5) facing the end of the dowel pin (9) has a bearing head (21) provided with a circumferential groove (19), in which the adjusting ring (5) is slidably guided.
10. Ladeeinrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass drei Lagerrollen (11) oder drei Lagerköpfe (21) mit einem jeweils zwischen zwei Lagerrollen (11) /Lagerköpfen (21) liegenden Winkelbereich von 120° vorgesehen sind.10. Loading device according to one of claims 1 to 9, characterized in that three bearing rollers (11) or three bearing heads (21) are provided with a respectively between two bearing rollers (11) / bearing heads (21) lying angle range of 120 °.
11. Verbrennungsmotor mit einer Ladeeinrichtung (1) nach einem der Ansprüche 1 bis 10.11. Internal combustion engine with a charging device (1) according to one of claims 1 to 10.
***** *****
EP08851470.8A 2007-11-21 2008-11-13 Supercharger device Not-in-force EP2209969B1 (en)

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DE200710056154 DE102007056154A1 (en) 2007-11-21 2007-11-21 loader
PCT/EP2008/065453 WO2009065763A2 (en) 2007-11-21 2008-11-13 Supercharger device

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DE102007056154A1 (en) 2009-05-28
US20100316489A1 (en) 2010-12-16
WO2009065763A3 (en) 2010-01-14
EP2209969B1 (en) 2016-06-29
US8845279B2 (en) 2014-09-30
WO2009065763A2 (en) 2009-05-28

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