WO2011069571A1 - Turbine for a supercharger device, and method for mounting a turbine of this type - Google Patents
Turbine for a supercharger device, and method for mounting a turbine of this type Download PDFInfo
- Publication number
- WO2011069571A1 WO2011069571A1 PCT/EP2010/005685 EP2010005685W WO2011069571A1 WO 2011069571 A1 WO2011069571 A1 WO 2011069571A1 EP 2010005685 W EP2010005685 W EP 2010005685W WO 2011069571 A1 WO2011069571 A1 WO 2011069571A1
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- WO
- WIPO (PCT)
- Prior art keywords
- turbine
- housing
- guide grid
- contour sleeve
- exhaust gas
- Prior art date
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Classifications
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- 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
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- 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
- F01D17/167—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes of vanes moving in translation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/246—Fastening of diaphragms or stator-rings
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- 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
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- 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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- 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
- F05D2260/00—Function
- F05D2260/30—Retaining components in desired mutual position
- F05D2260/33—Retaining components in desired mutual position with a bayonet coupling
Definitions
- the invention relates to a turbine for a supercharger, in particular for an exhaust gas turbocharger, the type specified in the preamble of claim 1 and a method for assembling such a turbine specified in the preamble of claim 9 Art.
- DE 10 2005 027 080 A1 discloses an exhaust gas turbine in an exhaust gas turbocharger with a turbine wheel mounted in a housing carrier, to which exhaust gas can be fed via an inlet flow, which can be discharged from the exhaust gas turbine via an outlet channel, with a turbine inlet cross section which, in the transition from the inlet flow to the
- Turbine is formed between two lateral boundary walls and in which a guide grid and a cooperating with the guide grid, is arranged in the axial direction adjustable axial slide, wherein one of the boundary walls of the
- Turbine inlet cross-section slidably executed and formed by the axial slide.
- the guide grid is fixedly mounted in the turbine inlet cross-section housing, wherein the axial slide is arranged on the outlet channel facing side, and wherein the outlet channel facing away from the housing-fixed boundary wall of the
- Turbine inlet cross section axially flush with the turbine blades of the
- the known exhaust gas turbine has further potential for improvement to simplify a mounting of the exhaust gas turbine.
- Charging device in particular for an exhaust gas turbocharger of the type mentioned above and to provide a method for assembling such a turbine, which allow low cost of the turbine.
- This object is achieved by a turbine for a charging device, in particular for an exhaust gas turbocharger, with the features of patent claim 1 and by a method for assembling such a turbine with the features of patent claim 9.
- a turbine according to the invention for a charging device in particular a
- Exhaust gas turbocharger with a recorded by a turbine housing and arranged in a turbine inlet area guide grid and at least partially arranged in a turbine outlet area contour sleeve elements for influencing flow parameters is provided by the fact that the contour sleeve element and / or the guide grid are fixed via a bayonet lock on the turbine housing.
- the contour sleeve element is integrally formed with the guide grid, which are then fixed by a bayonet fitting associated with this in the turbine housing.
- the one-piece design keeps the number of parts of the turbine according to the invention low, which is conducive to further cost reduction.
- Turbine housing can be inserted or pushed out of the housing via the turbine outlet, so so that the contour sleeve member and the guide grid can be mounted in a single step, which keeps the time and thus the cost of installation in a small frame. This is especially true when the guide grid and the contour sleeve member are integrally formed with each other. Likewise, the handling during assembly is simplified because then only a one-piece component must be spent and mounted. Additional assembly steps or arrangements for the handling of multiple components are not required. It should be noted at this point that the movement of the component assembly into the
- Turbine housing into or out of the turbine housing out in the axial direction of the turbine.
- This assembly of the component assembly on the turbine outlet has the advantage that the turbine outlet provides a sufficiently large accessibility in the turbine housing, so as to be able to mount the component assembly quickly and easily.
- the assembly of the component assembly or its definition in the turbine housing on said bayonet closure affects the installation with respect to time and cost continues to be very positive because, for example, a subsequent attachment process, for example by a welding ßrea and additional fasteners, such as a filler metal, not required.
- the bayonet closure of the turbine according to the invention has the shape that the component composite is introduced from the turbine outlet into the turbine housing and is then rotated in an axial end position, so overlap tabs of the bayonet closure, whereby the composite component is fixed in the axial direction of the turbine. A radial fixation of the component composite takes place via corresponding systems and via corresponding active surfaces in the radial direction.
- the guide grid and the contour sleeve element is formed integrally, said analogously to the contour sleeve member and / or the guide grid is transferable.
- the component assembly is a cassette solution of the said components, which is advantageously particularly quick and easy to assemble and in the case of one-piece design keeps the number of parts of the turbine and thus their costs low.
- the bayonet closure is represented, for example, by a corresponding casting design and machining of the corresponding components or of the component composite, in particular in the case of the one-piece design of the guide grid and of the contour sleeve element.
- the component composite comprises a slide element for influencing a flow cross-section of the guide grid, whereby on the one hand the turbine to a wide range of operating points of its associated drive unit, such as an internal combustion engine, adaptable, which allows extremely efficient operation of the turbine and thus the drive unit.
- the Slider element can be mounted together with the guide grid and the contour sleeve element in a single step, which avoids further steps for fixing the slider element and other fastening means. This too is low costs for assembly and thus beneficial for the turbine as a whole.
- the said slide element may be, for example, an axial slide which is displaceably mounted in the axial direction of the turbine and by means of which the flow cross section in a turbine wheel inlet region, in particular the flow cross section of the guide grid, can be variably adjusted.
- the component composite with the slider element while the slider element is slidably held or mounted for example, on the contour sleeve member.
- the invention also includes a charging device, in particular an exhaust gas turbocharger, with a bearing housing and with a turbine according to the invention, wherein the
- Bayonet lock is provided on sides of the bearing housing.
- the arrangement of the bayonet closure on the side of the bearing housing has the advantage that thereby minimizing the influence of distortion of the turbine housing by different thermal expansions on a clamping tendency of the slider element, which is a movable component, is possible. This reduces the failure probability of the turbine, which also minimizes the likelihood of costly and time-consuming maintenance or repair work.
- a heat shield is arranged in the axial direction of the turbine between the bearing housing and the guide grid or between the bearing housing and the guide sleeve integrally formed with the contour sleeve member to heat transfer from the acted upon by a hot medium, such as exhaust gas turbine to reduce the bearing housing at least, which keeps different thermal expansions low.
- the heat shield is thus also clamped in the turbine housing, thereby avoiding further fasteners that would increase the cost of the turbine.
- the invention also relates to a method for assembling a turbine for a
- Charging device in particular an exhaust gas turbocharger, wherein in a
- Turbine housing a guide grid in a turbine inlet area and a
- Turbines according to the invention are to be regarded as advantageous embodiments of the method and vice versa.
- the inventive method allows a particularly simple and thus time and cost assembly of the turbine and thus the entire charging device due to the particularly simple and quick installation and optionally disassembly of the contour sleeve member and / or the guide grid or the composite component described.
- FIG. 1 shows a detail of a perspective view of an exhaust gas turbocharger with an embodiment of the turbine according to the invention.
- FIG. 2 shows a detail of a longitudinal sectional view of the exhaust gas turbocharger according to FIG. 1.
- Fig. 1 shows an exhaust gas turbocharger 10 with a bearing housing 12 in which a running tool is mounted.
- This power tool includes one shaft and two with the shaft rotatably connected impellers, wherein an impeller as the compressor wheel of a compressor of the exhaust gas turbocharger 10 and an impeller as the turbine wheel of a turbine 14 of the
- Exhaust gas turbocharger 10 is formed.
- the turbine wheel is received by a turbine housing 16 of the turbine 14. Also received by the turbine housing 16 is a in one
- FIGS. 1 and 2 are not shown and formed integrally with the guide grille 18, the contoured sleeve element is not shown in FIGS. 1 and 2 and formed in a turbine outlet region.
- Contour sleeve element and a trained as an axial slide and on the
- Contoured sleeve element slidably held slide element is now inserted from a turbine outlet side according to a direction arrow 20 ago in the turbine housing 16 inserted or opposite to this pushed out.
- a bayonet closure 24 is provided, which thus defines the contour sleeve element, the guide grid 8 and the axial slide in the axial direction according to a directional arrow 22 of the turbine 14 and the exhaust gas turbocharger 10 on the turbine housing 16.
- Bearing housing 12 is fixed or clamped in the axial direction.
- the heat shield 26 prevents an excessively high heat transfer from the acted upon by a hot exhaust turbine 14 on the bearing housing 12, which different thermal expansions and thus leakage and negative influences on the mentioned storage of the running gear at least reduced.
- Tolerance chain allows said turbine wheel.
- Bayonet catch 24 so this low tolerance chain is a simple and thus time and cost assembly of the composite component beneficial, which is associated with low costs for the exhaust gas turbocharger 10 overall.
- the turbine housing 16 and the bearing housing 12 are connected by means of a V-band clamp 28, which ensures a firm cohesion and thus secure clamping of the composite component and the heat shield 26.
Abstract
The invention relates to a turbine (14) for a supercharger device (10), in particular an exhaust-gas turbocharger (10), having a guide cascade (18), which is accommodated by a turbine housing (16) and is arranged in a turbine inlet region, and a contour sleeve element which is arranged at least in regions in a turbine outlet region for influencing flow parameters, wherein the contour sleeve element and/or the guide cascade (18) are/is fixed on the turbine housing (26) via a bayonet closure (24). Furthermore, the invention relates to a method for mounting a turbine (14) for a supercharger device (10), in particular an exhaust-gas turbocharger (10), in which method, in a turbine housing (16), a guide cascade (18) is arranged in a turbine inlet region and a contour sleeve element is arranged in a turbine outlet region for influencing flow parameters, wherein the contour sleeve element and/or the guide cascade (18) are/is connected to the turbine housing (16) via a bayonet closure (24).
Description
Turbine für eine Aufladeeinrichtung Turbine for a charging device
sowie Verfahren zur Montage einer solchen Turbine and method for assembling such a turbine
Die Erfindung betrifft eine Turbine für eine Aufladeeinrichtung, insbesondere für einen Abgasturbolader, der im Oberbegriff des Patentanspruchs 1 angegebenen Art sowie ein Verfahren zur Montage einer solchen Turbine der im Oberbegriff des Patentanspruchs 9 angegebenen Art. The invention relates to a turbine for a supercharger, in particular for an exhaust gas turbocharger, the type specified in the preamble of claim 1 and a method for assembling such a turbine specified in the preamble of claim 9 Art.
Die DE 10 2005 027 080 A1 offenbart eine Abgasturbine in einem Abgasturbolader mit einem in einem Gehäuseträger gelagerten Turbinenrad, dem über eine Einlassflut Abgas zuführbar ist, welches über einen Austrittskanal aus der Abgasturbine abführbar ist, mit einem Turbineneintrittsquerschnitt, der im Übergang von der Einlassflut zu dem DE 10 2005 027 080 A1 discloses an exhaust gas turbine in an exhaust gas turbocharger with a turbine wheel mounted in a housing carrier, to which exhaust gas can be fed via an inlet flow, which can be discharged from the exhaust gas turbine via an outlet channel, with a turbine inlet cross section which, in the transition from the inlet flow to the
Turbinenrad zwischen zwei seitlichen Begrenzungswänden gebildet ist und in dem ein Leitgitter und ein mit dem Leitgitter zusammenwirkender, in Achsrichtung verstellbarer Axialschieber angeordnet ist, wobei eine der Begrenzungswände des Turbine is formed between two lateral boundary walls and in which a guide grid and a cooperating with the guide grid, is arranged in the axial direction adjustable axial slide, wherein one of the boundary walls of the
Turbineneintrittsquerschnitts verschieblich ausgeführt und von dem Axialschieber gebildet ist. Das Leitgitter ist im Turbineneintrittsquerschnittgehäuse fest montiert, wobei der Axialschieber auf der dem Austrittskanal zugewandten Seite angeordnet ist, und wobei die dem Austrittskanal abgewandte, gehäusefeste Begrenzungswand des Turbine inlet cross-section slidably executed and formed by the axial slide. The guide grid is fixedly mounted in the turbine inlet cross-section housing, wherein the axial slide is arranged on the outlet channel facing side, and wherein the outlet channel facing away from the housing-fixed boundary wall of the
Turbineneintrittsquerschnitts axial bündig mit den Turbinenradschaufeln des Turbine inlet cross section axially flush with the turbine blades of the
Turbinenrades abschließt. Turbine wheel completes.
Die bekannte Abgasturbine weist dabei weiteres Verbesserungspotential auf, eine Montage der Abgasturbine zu vereinfachen. The known exhaust gas turbine has further potential for improvement to simplify a mounting of the exhaust gas turbine.
Es ist daher Aufgabe der vorliegenden Erfindung, eine Turbine für eine It is therefore an object of the present invention to provide a turbine for a
Aufladeeinrichtung, insbesondere für einen Abgasturbolader der eingangs genannten Art sowie ein Verfahren zur Montage einer solchen Turbine bereitzustellen, welches geringe Kosten für die Turbine ermöglichen.
Diese Aufgabe wird durch eine Turbine für eine Aufladeeinrichtung, insbesondere für einen Abgasturbolader, mit den Merkmalen des Patentanspruchs 1 sowie durch ein Verfahren zur Montage einer solchen Turbine mit den Merkmalen des Patentanspruchs 9 gelöst. Vorteilhafte Ausgestaltungen mit zweckmäßigen und nicht-trivialen Charging device, in particular for an exhaust gas turbocharger of the type mentioned above and to provide a method for assembling such a turbine, which allow low cost of the turbine. This object is achieved by a turbine for a charging device, in particular for an exhaust gas turbocharger, with the features of patent claim 1 and by a method for assembling such a turbine with the features of patent claim 9. Advantageous embodiments with appropriate and non-trivial
Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben. Further developments of the invention are specified in the dependent claims.
Eine erfindungsgemäße Turbine für eine Aufladeeinrichtung, insbesondere einen A turbine according to the invention for a charging device, in particular a
Abgasturbolader, mit einem durch ein Turbinengehäuse aufgenommenen und in einem Turbineneintrittsbereich angeordneten Leitgitter und einem zumindest bereichsweise in einem Turbinenaustrittsbereich angeordneten Konturhülsenelemente zur Beeinflussung von Strömungsparametern ist dadurch bereitgestellt, dass das Konturhülsenelement und/oder das Leitgitter über einen Bajonettverschluss an dem Turbinengehäuse festgelegt sind. Exhaust gas turbocharger, with a recorded by a turbine housing and arranged in a turbine inlet area guide grid and at least partially arranged in a turbine outlet area contour sleeve elements for influencing flow parameters is provided by the fact that the contour sleeve element and / or the guide grid are fixed via a bayonet lock on the turbine housing.
Dies ermöglicht eine besonders einfache, schnelle und damit zeit- und kostengünstige Montage des Konturhülsenelements und/oder des Leitgitters, was geringen Kosten für die Turbine zuträglich ist. This allows a particularly simple, fast and thus time and cost-effective installation of the contour sleeve member and / or the guide grid, which is beneficial for low cost turbine.
Bei einer vorteilhaften Ausführungsform der Erfindung ist das Konturhülsenelement mit dem Leitgitter einstückig ausgebildet, wobei diese dann durch einen diesen zugeordneten Bajonettverschluss im Turbinengehäuse festgelegt sind. Die einstückige Ausbildung hält dabei die Teileanzahl der erfindungsgemäßen Turbine gering, was einer weiteren Kostenreduzierung zuträglich ist. In an advantageous embodiment of the invention, the contour sleeve element is integrally formed with the guide grid, which are then fixed by a bayonet fitting associated with this in the turbine housing. The one-piece design keeps the number of parts of the turbine according to the invention low, which is conducive to further cost reduction.
Ist ein Bauteilverbund, welcher das Leitgitter und das Konturhülsenelement umfasst, in das Turbinengehäuse einschiebbar und aus dem Turbinengehäuse ausschiebbar, wobei der Bauteilverbund vorteilhafterweise von einem Turbinenaustritt her in das Is a component composite, which comprises the guide grid and the contour sleeve member, inserted into the turbine housing and pushed out of the turbine housing, wherein the component composite advantageously from a turbine outlet forth in the
Turbinengehäuse einschiebbar bzw. über den Turbinenaustritt aus dem Gehäuse ausschiebbar ist, so sind damit das Konturhülsenelement und das Leitgitter in einem einzigen Arbeitsschritt montierbar, was die Zeit und damit die Kosten für die Montage in einem geringen Rahmen hält. Dies trifft insbesondere dann zu, wenn das Leitgitter und das Konturhülsenelement einstückig miteinander ausgebildet sind. Ebenso ist das Handling während der Montage vereinfacht, da dann lediglich ein einstückiges Bauteil verbracht sowie montiert werden muss. Zusätzliche Montageschritte oder Vorkehrungen für das Handling mehrerer Bauteile sind nicht vonnöten.
An dieser Stelle sei angemerkt, dass die Verbringung des Bauteilverbunds in das Turbine housing can be inserted or pushed out of the housing via the turbine outlet, so so that the contour sleeve member and the guide grid can be mounted in a single step, which keeps the time and thus the cost of installation in a small frame. This is especially true when the guide grid and the contour sleeve member are integrally formed with each other. Likewise, the handling during assembly is simplified because then only a one-piece component must be spent and mounted. Additional assembly steps or arrangements for the handling of multiple components are not required. It should be noted at this point that the movement of the component assembly into the
Turbinengehäuse hinein bzw. aus dem Turbinengehäuse heraus in axialer Richtung der Turbine erfolgt. Diese Montage des Bauteilverbunds über den Turbinenaustritt birgt dabei den Vorteil, dass der Turbinenaustritt eine ausreichend große Zugänglichkeit in das Turbinengehäuse bietet, um somit den Bauteilverbund schnell und einfach montieren zu können. Turbine housing into or out of the turbine housing out in the axial direction of the turbine. This assembly of the component assembly on the turbine outlet has the advantage that the turbine outlet provides a sufficiently large accessibility in the turbine housing, so as to be able to mount the component assembly quickly and easily.
Die Montage des Bauteilverbunds bzw. dessen Festlegung in dem Turbinengehäuse über den besagten Bajonettverschluss beeinflusst die Montage bezüglich der Zeit und der Kosten weiterhin sehr positiv, da beispielsweise ein nachfolgender Befestigungsprozess beispielsweise durch einen Schwei ßprozess und zusätzliche Befestigungsmittel, beispielsweise ein Schweißzusatzwerkstoff, nicht vonnöten sind. Der Bajonettverschluss der erfindungsgemäßen Turbine weist dabei die Form auf, dass der Bauteilverbund von dem Turbinenaustritt her in das Turbinengehäuse eingeführt wird und anschließend in einer axialen Endlage verdreht wird, damit sich Laschen des Bajonettverschlusses überdecken, wodurch der Bauteilverbund in axialer Richtung der Turbine festgelegt ist. Eine radiale Festlegung des Bauteilverbunds erfolgt dabei über entsprechende Anlagen und über korrespondierende Wirkflächen in radialer Richtung. The assembly of the component assembly or its definition in the turbine housing on said bayonet closure affects the installation with respect to time and cost continues to be very positive because, for example, a subsequent attachment process, for example by a welding ßprozess and additional fasteners, such as a filler metal, not required. The bayonet closure of the turbine according to the invention has the shape that the component composite is introduced from the turbine outlet into the turbine housing and is then rotated in an axial end position, so overlap tabs of the bayonet closure, whereby the composite component is fixed in the axial direction of the turbine. A radial fixation of the component composite takes place via corresponding systems and via corresponding active surfaces in the radial direction.
An dieser Stelle sei angemerkt, dass das zu dem Bauteilverbund, bei welchem At this point it should be noted that this is the component composite in which
beispielsweise das Leitgitter und das Konturhülsenelement einstückig ausgebildet ist, Gesagte analog auf das Konturhülsenelement und/oder das Leitgitter übertragbar ist. Der Bauteilverbund stellt eine Kassettenlösung der genannten Bauteile dar, welche vorteilhafterweise besonders schnell und einfach zu montieren ist sowie im Falle der einstückigen Ausbildung die Teileanzahl der Turbine und damit deren Kosten gering hält. For example, the guide grid and the contour sleeve element is formed integrally, said analogously to the contour sleeve member and / or the guide grid is transferable. The component assembly is a cassette solution of the said components, which is advantageously particularly quick and easy to assemble and in the case of one-piece design keeps the number of parts of the turbine and thus their costs low.
In jeglicher Ausführungsform ist dabei der Bajonettverschluss beispielsweise durch eine entsprechende Gussgestaltung und Bearbeitung der entsprechenden Bauteile bzw. des Bauteilverbunds, insbesondere im Falle der einstückigen Ausbildung des Leitgitters und des Konturhülsenelements, darstellbar. In any embodiment, the bayonet closure is represented, for example, by a corresponding casting design and machining of the corresponding components or of the component composite, in particular in the case of the one-piece design of the guide grid and of the contour sleeve element.
Vorteilhafterweise umfasst der Bauteilverbund ein Schieberelement zur Beeinflussung eines Strömungsquerschnitts des Leitgitters, wodurch einerseits die Turbine an ein breites Spektrum von Betriebspunkten eines ihr zugeordneten Antriebsaggregats, beispielsweise einer Verbrennungskraftmaschine, anpassbar ist, was einen äußerst effizienten Betrieb der Turbine und damit des Antriebsaggregats ermöglicht. Andererseits ist dann eine weitere Vereinfachung der Montage realisiert, da nun auch das
Schieberelement zusammen mit dem Leitgitter und dem Konturhülsenelement in einem einzigen Arbeitsschritt montierbar ist, was weitere Arbeitsschritte zur Festlegung des Schieberelements sowie weitere Befestigungsmittel vermeidet. Auch dies ist geringen Kosten für die Montage und damit für die Turbine insgesamt zuträglich. Advantageously, the component composite comprises a slide element for influencing a flow cross-section of the guide grid, whereby on the one hand the turbine to a wide range of operating points of its associated drive unit, such as an internal combustion engine, adaptable, which allows extremely efficient operation of the turbine and thus the drive unit. On the other hand, then a further simplification of the assembly is realized, since now also the Slider element can be mounted together with the guide grid and the contour sleeve element in a single step, which avoids further steps for fixing the slider element and other fastening means. This too is low costs for assembly and thus beneficial for the turbine as a whole.
Bei dem besagten Schieberelement kann es sich beispielsweise um einen Axialschieber handeln, der in axialer Richtung der Turbine verschiebbar gelagert ist und mittels welchem der Strömungsquerschnitt in einem Turbinenradeintrittsbereich, insbesondere der Strömungsquerschnitt des Leitgitters, variabel einstellbar ist. Zur Darstellung des Bauteilverbunds mit dem Schieberelement ist dabei das Schieberelement beispielsweise auf dem Konturhülsenelement verschiebbar gehalten bzw. gelagert. The said slide element may be, for example, an axial slide which is displaceably mounted in the axial direction of the turbine and by means of which the flow cross section in a turbine wheel inlet region, in particular the flow cross section of the guide grid, can be variably adjusted. To illustrate the component composite with the slider element while the slider element is slidably held or mounted, for example, on the contour sleeve member.
Zur Erfindung gehört auch eine Aufladeeinrichtung, insbesondere ein Abgasturbolader, mit einem Lagergehäuse und mit einer erfindungsgemäßen Turbine, wobei der The invention also includes a charging device, in particular an exhaust gas turbocharger, with a bearing housing and with a turbine according to the invention, wherein the
Bajonettverschluss auf Seiten des Lagergehäuses vorgesehen ist. Die Anordnung des Bajonettverschlusses auf Seiten des Lagergehäuses birgt den Vorteil, dass dadurch eine Minimierung des Einflusses eines Verzugs des Turbinengehäuses durch unterschiedliche Wärmedehnungen auf eine Klemmneigung des Schieberelements, welches ein bewegliches Bauteil darstellt, ermöglicht ist. Dies reduziert die Ausfallwahrscheinlichkeit der Turbine, was ebenso die Wahrscheinlichkeit für kosten- und zeitintensive Wartungsoder Reparaturarbeiten gering hält. Bayonet lock is provided on sides of the bearing housing. The arrangement of the bayonet closure on the side of the bearing housing has the advantage that thereby minimizing the influence of distortion of the turbine housing by different thermal expansions on a clamping tendency of the slider element, which is a movable component, is possible. This reduces the failure probability of the turbine, which also minimizes the likelihood of costly and time-consuming maintenance or repair work.
Des Weiteren ist dadurch eine kurze Toleranzkette zu einem durch das Turbinengehäuse aufgenommenen Turbinerad darstellbar, was vorteilhaft für die Fertigungskosten der Bauteile sowie für die Montage ist. Furthermore, a short tolerance chain to a turbine wheel accommodated by the turbine housing can thereby be displayed, which is advantageous for the manufacturing costs of the components and for assembly.
Bei einer weiteren vorteilhaften Ausführungsform der Erfindung sind das In a further advantageous embodiment of the invention that are
Konturhülsenelement und das Leitgitter mittels des mit dem Turbinengehäuse Contour sleeve element and the guide grid by means of the turbine housing
verbundenen Lagergehäuses in dem Bajonettverschluss in axialer Richtung der Turbine geklemmt, wobei das Leitgitter und das Konturhülsenelement sich über den connected bearing housing in the bayonet lock in the axial direction of the turbine clamped, wherein the guide grid and the contour sleeve member over the
Bajonettverschluss am Turbinengehäuse abstützen. Dies ist der festen Halterung der besagten Bauteile in dem Turbinengehäuse zuträglich. Support bayonet catch on turbine housing. This is conducive to the fixed support of said components in the turbine housing.
Vorteilhafterweise ist in axialer Richtung der Turbine zwischen dem Lagergehäuse und dem Leitgitter bzw. zwischen dem Lagergehäuse und dem mit dem Konturhülsenelement einstückig ausgebildeten Leitgitter ein Hitzeschild angeordnet, um einen Wärmeübergang von der mit einem heißen Medium, beispielsweise Abgas, beaufschlagbaren Turbine auf
das Lagergehäuse zumindest zu reduzieren, was unterschiedliche Wärmeausdehnungen gering hält. Der Hitzeschild ist somit ebenfalls in dem Turbinengehäuse festgelegt bzw. geklemmt, wodurch weitere Befestigungsmittel, die die Kosten der Turbine erhöhen würden, vermieden werden. Advantageously, a heat shield is arranged in the axial direction of the turbine between the bearing housing and the guide grid or between the bearing housing and the guide sleeve integrally formed with the contour sleeve member to heat transfer from the acted upon by a hot medium, such as exhaust gas turbine to reduce the bearing housing at least, which keeps different thermal expansions low. The heat shield is thus also clamped in the turbine housing, thereby avoiding further fasteners that would increase the cost of the turbine.
Die Erfindung betrifft auch ein Verfahren zur Montage einer Turbine für eine The invention also relates to a method for assembling a turbine for a
Aufladeeinrichtung, insbesondere einen Abgasturbolader, bei welchem in einem Charging device, in particular an exhaust gas turbocharger, wherein in a
Turbinengehäuse ein Leitgitter in einem Turbineneintrittsbereich sowie ein Turbine housing a guide grid in a turbine inlet area and a
Konturhülsenelement in einem Turbinenaustrittsbereich zur Beeinflussung von Contour sleeve element in a turbine outlet area for influencing
Strömungsparametern angeordnet werden, wobei erfindungsgemäß vorgesehen ist, dass das Konturhülsenelement und/oder das Leitgitter über einen Bajonettverschluss mit dem Turbinengehäuse verbunden werden. Vorteilhafte Ausgestaltungen der Flow parameters are arranged, which is inventively provided that the contour sleeve member and / or the guide grid are connected via a bayonet lock with the turbine housing. Advantageous embodiments of
erfindungsgemäßen Turbine sind dabei als vorteilhafte Ausgestaltungen des Verfahrens und umgekehrt anzusehen. Auch das erfindungsgemäße Verfahren ermöglicht eine besonders einfache und damit zeit- und kostengünstige Montage der Turbine und damit der gesamte Aufladeeinrichtung infolge der besonders einfachen und schnellen Montage und gegebenenfalls Demontage des Konturhülsenelements und/oder des Leitgitters bzw. des beschriebenen Bauteilverbunds. Turbines according to the invention are to be regarded as advantageous embodiments of the method and vice versa. The inventive method allows a particularly simple and thus time and cost assembly of the turbine and thus the entire charging device due to the particularly simple and quick installation and optionally disassembly of the contour sleeve member and / or the guide grid or the composite component described.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels sowie anhand der Zeichnungen. Die vorstehend in der Beschreibung genannten Merkmale und Further advantages, features and details of the invention will become apparent from the following description of a preferred embodiment and from the drawings. The features mentioned above in the description and
Merkmalskombinationen sowie die nachfolgend in der Figurenbeschreibung genannten und/oder in den Figuren alleine gezeigten Merkmale und Merkmalskombinationen sind nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Feature combinations as well as the features and feature combinations mentioned below in the description of the figures and / or shown alone in the figures are not only in the respectively indicated combination but also in others
Kombinationen oder in Alleinstellung verwendbar, ohne den Rahmen der Erfindung zu verlassen. Combinations or alone, without departing from the scope of the invention.
Die Zeichnungen zeigen: The drawings show:
Fig. 1 ausschnittsweise eine perspektivische Ansicht eines Abgasturboladers mit einer Ausführungsform der erfindungsgemäßen Turbine; und 1 shows a detail of a perspective view of an exhaust gas turbocharger with an embodiment of the turbine according to the invention; and
Fig. 2 ausschnittsweise eine Längsschnittansicht des Abgasturboladers gemäß Fig. 1. 2 shows a detail of a longitudinal sectional view of the exhaust gas turbocharger according to FIG. 1.
Die Fig. 1 zeigt einen Abgasturbolader 10 mit einem Lagergehäuse 12, in welchem ein Laufzeug gelagert ist. Dieses Laufzeug umfasst eine Welle und zwei mit der Welle
drehfest verbundene Laufräder, wobei ein Laufrad als Verdichterrad eines Verdichters des Abgasturboladers 10 und ein Laufrad als Turbinenrad einer Turbine 14 des Fig. 1 shows an exhaust gas turbocharger 10 with a bearing housing 12 in which a running tool is mounted. This power tool includes one shaft and two with the shaft rotatably connected impellers, wherein an impeller as the compressor wheel of a compressor of the exhaust gas turbocharger 10 and an impeller as the turbine wheel of a turbine 14 of the
Abgasturboladers 10 ausgebildet ist. Exhaust gas turbocharger 10 is formed.
Das Turbinenrad ist dabei durch ein Turbinengehäuse 16 der Turbine 14 aufgenommen. Ebenso durch das Turbinengehäuse 16 aufgenommen ist ein in einem The turbine wheel is received by a turbine housing 16 of the turbine 14. Also received by the turbine housing 16 is a in one
Turbineneintrittsbereich angeordnetes Leitgitter 18 sowie ein zumindest bereichsweise in einem Turbinenaustrittsbereich angeordnetes Konturhülsenelement zur Beeinflussung von Strömungsparametern, wobei das Konturhülsenelement in den Fig. 1 und 2 nicht dargestellt und einstückig mit dem Leitgitter 18 ausgebildet ist. Ein Bauteilverbund, welcher das Leitgitter 18 sowie das einstückig mit diesem ausgebildeten 1 and 2 are not shown and formed integrally with the guide grille 18, the contoured sleeve element is not shown in FIGS. 1 and 2 and formed in a turbine outlet region. A composite component, which the guide grid 18 and integrally formed therewith
Konturhülsenelement sowie ein als Axialschieber ausgebildetes und auf dem Contour sleeve element and a trained as an axial slide and on the
Konturhülsenelement verschiebbar gehaltenes Schieberelement umfasst, ist nun von einer Turbinenaustrittsseite gemäß einem Richtungspfeil 20 her in das Turbinengehäuse 16 einschiebbar bzw. entgegengesetzt aus diesem heraus schiebbar. Contoured sleeve element slidably held slide element is now inserted from a turbine outlet side according to a direction arrow 20 ago in the turbine housing 16 inserted or opposite to this pushed out.
Zur Festlegung dieses Bauteilverbunds ist ein Bajonettverschluss 24 vorgesehen, der somit das Konturhülsenelement, das Leitgitter 8 sowie den Axialschieber in axialer Richtung gemäß einem Richtungspfeil 22 der Turbine 14 bzw. des Abgasturboladers 10 an dem Turbinengehäuse 16 festlegt. To fix this component composite, a bayonet closure 24 is provided, which thus defines the contour sleeve element, the guide grid 8 and the axial slide in the axial direction according to a directional arrow 22 of the turbine 14 and the exhaust gas turbocharger 10 on the turbine housing 16.
Zur Montage wird dabei der genannte Bauteilverbund von dem Turbinenaustritt gemäß dem Richtungspfeil 20 her in das Turbinengehäuse 16 eingeschoben und in einer axialen Endlage verdreht, damit sich Laschen 30, 32 und 34 des Bajonettverschlusses 24 überdecken. Damit ist der Bauteilverbund in axialer Richtung gemäß dem Richtungspfeil 22 festgelegt. Eine radiale Festlegung erfolgt über entsprechende, in radialer Richtung gemäß einem Richtungspfeil 36 zusammenwirkende Flächen, von welchen in der Fig. 1 beispielhaft Flächen 38 und 40 dargestellt sind. To assemble said component composite is inserted from the turbine outlet according to the direction arrow 20 ago in the turbine housing 16 and rotated in an axial end position so that tabs 30, 32 and 34 of the bayonet catch 24 overlap. Thus, the component composite is fixed in the axial direction according to the directional arrow 22. A radial fixing takes place via corresponding surfaces cooperating in the radial direction according to a directional arrow 36, of which surfaces 38 and 40 are shown by way of example in FIG.
Insbesondere in Zusammenschau mit Fig. 2 wird deutlich, dass in axialer Richtung gemäß dem Richtungspfeil 22 zwischen dem Leitgitter 18 und dem Lagergehäuse 12 ein Hitzeschild 26 angeordnet ist, das ebenso wie der Bauteilverbund in dem In particular, in conjunction with Fig. 2 it is clear that in the axial direction according to the directional arrow 22 between the guide grid 18 and the bearing housing 12, a heat shield 26 is arranged, which, like the composite component in the
Bajonettverschluss 24 durch das mit dem Turbinengehäuse 16 verbundene Bayonet catch 24 through which connected to the turbine housing 16
Lagergehäuse 12 in axialer Richtung festgelegt bzw. geklemmt ist. Bearing housing 12 is fixed or clamped in the axial direction.
Der Hitzeschild 26 verhindert dabei einen allzu starken Wärmeübergang von der mit einem heißen Abgas beaufschlagbaren Turbine 14 auf das Lagergehäuse 12, was
unterschiedliche Wärmeausdehnungen und damit Leckagen sowie Negativeinflüsse auf die erwähnte Lagerung des Laufzeugs zumindest reduziert. The heat shield 26 prevents an excessively high heat transfer from the acted upon by a hot exhaust turbine 14 on the bearing housing 12, which different thermal expansions and thus leakage and negative influences on the mentioned storage of the running gear at least reduced.
Dieser Tatsache ist auch die Anordnung des Bajonettverschlusses 24 auf Seiten des Lagergehäuses 12, also auf einer dem Lagergehäuse 12 zugewandten Seite der Turbine 14, zuträglich, was ebenso den besagten Verzug gering hält sowie eine kurze This fact is also the arrangement of the bayonet catch 24 on the side of the bearing housing 12, ie on a side facing the bearing housing 12 of the turbine 14, conducive, which also keeps said delay low and a short
Toleranzkette zu dem besagten Turbinenrad ermöglicht. Tolerance chain allows said turbine wheel.
Wie die schnelle und einfache Montierbarkeit des Bauteilverbunds durch den How the quick and easy assembling of the component composite by the
Bajonettverschluss 24 so ist auch diese geringe Toleranzkette einer einfachen und damit zeit- und kostengünstigen Montage des Bauteilverbunds zuträglich, was mit geringen Kosten für den Abgasturbolader 10 insgesamt einher geht. Bayonet catch 24 so this low tolerance chain is a simple and thus time and cost assembly of the composite component beneficial, which is associated with low costs for the exhaust gas turbocharger 10 overall.
Verbunden sind das Turbinengehäuse 16 und das Lagergehäuse 12 dabei mittels einer V-Bandschelle 28, die einen festen Zusammenhalt und damit eine sichere Klemmung des Bauteilverbunds sowie des Hitzeschilds 26 gewährleistet.
The turbine housing 16 and the bearing housing 12 are connected by means of a V-band clamp 28, which ensures a firm cohesion and thus secure clamping of the composite component and the heat shield 26.
Claims
1. Turbine (14) für eine Aufladeeinrichtung (10), insbesondere einen Abgasturbolader (10), mit einem durch ein Turbinengehäuse (16) aufgenommenen und in einem Turbineneintrittsbereich angeordneten Leitgitter (18) und einem zumindest bereichsweise in einem Turbinenaustrittsbereich angeordneten 1. Turbine (14) for a charging device (10), in particular an exhaust gas turbocharger (10), with a by a turbine housing (16) received and arranged in a turbine inlet region guide grille (18) and arranged at least partially in a turbine outlet region
Konturhülsenelement zur Beeinflussung von Strömungsparametern, Contour sleeve element for influencing flow parameters,
dadurch gekennzeichnet, dass characterized in that
das Konturhülsenelement und/oder das Leitgitter (18) über einen the contour sleeve element and / or the guide grid (18) via a
Bajonettverschluss (24) an dem Turbinengehäuse (26) festgelegt sind. Bayonet (24) on the turbine housing (26) are fixed.
2. Turbine (14) nach Anspruch 1 , 2. Turbine (14) according to claim 1,
dadurch gekennzeichnet, dass characterized in that
das Konturhülsenelement mit dem Leitgitter (18) einstückig ausgebildet ist. the contoured sleeve element is integrally formed with the guide grid (18).
3. Turbine (14) nach einem der Ansprüche 1 oder 2, 3. turbine (14) according to any one of claims 1 or 2,
dadurch gekennzeichnet, dass characterized in that
ein Bauteilverbund, welcher das Leitgitter (18) und das Konturhülsenelement umfasst, in das Turbinengehäuse (16) einschiebbar und aus dem Turbinengehäuse (16) ausschiebbar ist. a composite component, which comprises the guide grid (18) and the contour sleeve member, in the turbine housing (16) can be inserted and pushed out of the turbine housing (16).
4. Turbine (14) nach Anspruch 3, 4. turbine (14) according to claim 3,
dadurch gekennzeichnet, dass characterized in that
der Bauteilverbund von einem Turbinenaustritt her in das Turbinengehäuse (16) einschiebbar und über den Turbinenaustritt aus dem Turbinengehäuse (16) ausschiebbar ist. Turbine (14) nach einem der Ansprüche 3 oder 4, the component composite can be inserted from a turbine outlet into the turbine housing (16) and can be pushed out of the turbine housing (16) via the turbine outlet. Turbine (14) according to one of claims 3 or 4,
dadurch gekennzeichnet, dass characterized in that
der Bauteilverbund ein Schieberelement zur Beeinflussung eines the component composite a slider element for influencing a
Strömungsquerschnitts des Leitgitters (18) umfasst. Flow cross section of the guide grid (18).
Aufladeeinrichtung (10), insbesondere Abgasturbolader (10), mit einem Charging device (10), in particular exhaust gas turbocharger (10), with a
Lagergehäuse (12) und einer Turbine (14) nach einem der vorhergehenden Ansprüchen, wobei der Bajonettverschluss (14) auf Seiten des Lagergehäuses (12) vorgesehen ist. Bearing housing (12) and a turbine (14) according to one of the preceding claims, wherein the bayonet closure (14) on the sides of the bearing housing (12) is provided.
Aufladeeinrichtung (10) nach Anspruch 6, Charging device (10) according to claim 6,
dadurch gekennzeichnet, dass characterized in that
das Konturhülsenelement und das Leitgitter (18) mittels des mit dem the contour sleeve member and the guide grid (18) by means of the with
Turbinengehäuse (16) verbundene Lagergehäuses (12) in dem Bajonettverschluss (24) in axialer Richtung (22) der Turbine (14) geklemmt sind. Turbine housing (16) connected to the bearing housing (12) in the bayonet lock (24) in the axial direction (22) of the turbine (14) are clamped.
Aufladeeinrichtung (10) nach einem der Ansprüche 6 oder 7, Charging device (10) according to one of claims 6 or 7,
dadurch gekennzeichnet, dass characterized in that
in axialer Richtung (22) der Turbine (14) zwischen den Lagergehäuse (12) und dem Leitgitter (18) ein Hitzeschild (26) angeordnet ist. in the axial direction (22) of the turbine (14) between the bearing housing (12) and the guide grid (18) a heat shield (26) is arranged.
Verfahren zur Montage einer Turbine (14) für eine Aufladeeinrichtung (10), insbesondere einen Abgasturbolader (10), bei welchem in einem Turbinengehäuse (16) ein Leitgitter (18) in einem Turbineneintrittsbereich sowie ein Method for mounting a turbine (14) for a charging device (10), in particular an exhaust gas turbocharger (10), in which in a turbine housing (16) a guide grid (18) in a turbine inlet region and a
Konturhülsenelement in einem Turbinenaustrittsbereich zur Beeinflussung von Strömungsparametern angeordnet werden, Are arranged in a turbine outlet area for influencing flow parameters
dadurch gekennzeichnet, dass characterized in that
das Konturhülsenelement und/oder das Leitgitter (18) über einen the contour sleeve element and / or the guide grid (18) via a
Bajonettverschluss (24) mit dem Turbinengehäuse (16) verbunden werden. Bayonet closure (24) with the turbine housing (16) are connected.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910057742 DE102009057742A1 (en) | 2009-12-10 | 2009-12-10 | Turbine for a supercharger and method for assembling such a turbine |
DE102009057742.4 | 2009-12-10 |
Publications (1)
Publication Number | Publication Date |
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WO2011069571A1 true WO2011069571A1 (en) | 2011-06-16 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2010/005685 WO2011069571A1 (en) | 2009-12-10 | 2010-09-16 | Turbine for a supercharger device, and method for mounting a turbine of this type |
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DE (1) | DE102009057742A1 (en) |
WO (1) | WO2011069571A1 (en) |
Families Citing this family (1)
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DE202015008551U1 (en) * | 2015-12-14 | 2017-03-16 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Flange connection of a turbocharger and an aftertreatment device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB589689A (en) * | 1944-03-31 | 1947-06-26 | British Thomson Houston Co Ltd | Improvements in and relating to centrifugal compressors |
DE4438611A1 (en) * | 1994-10-28 | 1996-05-02 | Bmw Rolls Royce Gmbh | Radial compressor or radial turbine with a diffuser or turbine guide ring having vanes |
DE102004031986A1 (en) * | 2004-07-01 | 2006-01-19 | Volkswagen Ag | Exhaust-gas turbocharger for internal combustion engine, has three studs arranged at fixed-blade carrier in circumferential direction and pass through notches formed in bearing housing to form bayonet lock for connecting carrier at housing |
DE102005027080A1 (en) | 2005-06-11 | 2006-12-14 | Daimlerchrysler Ag | Exhaust gas turbine in an exhaust gas turbocharger |
EP1734231A1 (en) * | 2005-06-16 | 2006-12-20 | BorgWarner Inc. | Turbocharger and nozzle mounting ring therefor |
DE102007040679A1 (en) * | 2007-08-29 | 2009-03-05 | Bayerische Motoren Werke Aktiengesellschaft | Guide vane device for turbine of turbo charger, comprises two spaced bolt over distance, where spaced bolts are projected on guide vane facing side from side wall with head in increased diameter |
-
2009
- 2009-12-10 DE DE200910057742 patent/DE102009057742A1/en not_active Withdrawn
-
2010
- 2010-09-16 WO PCT/EP2010/005685 patent/WO2011069571A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB589689A (en) * | 1944-03-31 | 1947-06-26 | British Thomson Houston Co Ltd | Improvements in and relating to centrifugal compressors |
DE4438611A1 (en) * | 1994-10-28 | 1996-05-02 | Bmw Rolls Royce Gmbh | Radial compressor or radial turbine with a diffuser or turbine guide ring having vanes |
DE102004031986A1 (en) * | 2004-07-01 | 2006-01-19 | Volkswagen Ag | Exhaust-gas turbocharger for internal combustion engine, has three studs arranged at fixed-blade carrier in circumferential direction and pass through notches formed in bearing housing to form bayonet lock for connecting carrier at housing |
DE102005027080A1 (en) | 2005-06-11 | 2006-12-14 | Daimlerchrysler Ag | Exhaust gas turbine in an exhaust gas turbocharger |
EP1734231A1 (en) * | 2005-06-16 | 2006-12-20 | BorgWarner Inc. | Turbocharger and nozzle mounting ring therefor |
DE102007040679A1 (en) * | 2007-08-29 | 2009-03-05 | Bayerische Motoren Werke Aktiengesellschaft | Guide vane device for turbine of turbo charger, comprises two spaced bolt over distance, where spaced bolts are projected on guide vane facing side from side wall with head in increased diameter |
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