DE102008060251B4 - Exhaust gas turbocharger with variable turbine geometry - Google Patents
Exhaust gas turbocharger with variable turbine geometry Download PDFInfo
- Publication number
- DE102008060251B4 DE102008060251B4 DE102008060251.5A DE102008060251A DE102008060251B4 DE 102008060251 B4 DE102008060251 B4 DE 102008060251B4 DE 102008060251 A DE102008060251 A DE 102008060251A DE 102008060251 B4 DE102008060251 B4 DE 102008060251B4
- Authority
- DE
- Germany
- Prior art keywords
- carrier ring
- radial surface
- guide vanes
- exhaust gas
- gas turbocharger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
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
- F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
- F01D17/143—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path the shiftable member being a wall, or part thereof of a radial diffuser
-
- 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
- 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
- F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
-
- 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
- F05D2250/00—Geometry
- F05D2250/40—Movement of components
- F05D2250/41—Movement of components with one degree of freedom
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/40—Movement of components
- F05D2250/42—Movement of components with two degrees of freedom
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
Abstract
Abgasturbolader mit variabler Turbinengeometrie, mit im Anströmbereich (4) des Turbinenrads (2) angeordneten Leitschaufeln (5), die an einem axial beweglichen Trägerring (7), welcher den Anströmbereich (4) zusammen mit einer gegenüberliegenden ringförmigen Radialfläche (8) axial begrenzt, um zur Turbinenradachse im Wesentlichen parallele Achsen schwenkbar gelagert und zwischen einer den Anströmbereich (4) im Wesentlichen absperrenden Schließlage und einer den Anströmbereich weitestgehend freigebenden Offenlage verstellbar sind, wobei die Leitschaufeln (5) zwischen der leitschaufelseitigen Stirnseite des Trägerrings (7) und der gegenüberliegenden ringförmigen Radialfläche (8) ein steuerbares axiales Spiel aufweisen, zu dessen Einstellung der Trägerring (7) axial verstellbar ist, dadurch gekennzeichnet, dass der Abstand zwischen Trägerring (7) und ringförmiger Radialfläche (8) mit zunehmendem Öffnungsgrad der Leitschaufeln (5) anwächst.Exhaust gas turbocharger with variable turbine geometry, with guide vanes (5) arranged in the inflow area (4) of the turbine wheel (2), which axially delimit the inflow area (4) on an axially movable carrier ring (7), together with an opposing annular radial surface (8), mounted pivotably about axes essentially parallel to the turbine wheel axis and adjustable between a closed position that essentially blocks the inflow area (4) and an open position that largely exposes the inflow area, the guide vanes (5) between the guide vane-side end face of the carrier ring (7) and the opposite annular one Radial surface (8) have a controllable axial play, for the adjustment of which the carrier ring (7) is axially adjustable, characterized in that the distance between the carrier ring (7) and the annular radial surface (8) increases as the opening of the guide vanes (5) increases.
Description
Die Erfindung bezieht sich auf einen Abgasturbolader (ATL) mit variabler Turbinengeometrie, mit im Anströmbereich des Turbinenrads angeordneten Leitschaufeln gemäß dem Oberbegriff des Anspruchs 1.The invention relates to an exhaust gas turbocharger (ETC) with variable turbine geometry, with guide vanes according to the preamble of
Um bei Kraftfahrzeugen geringe Kraftstoffverbräuche erreichen zu können, werden vergleichsweise kleine Hubräume aufweisende Verbrennungsmotoren eingesetzt, die erst in Kombination mit Abgasturboladern die für das jeweilige Fahrzeug wünschenswerte Leistung erreichen. Dabei sind Abgasturbolader mit variabler Turbinengeometrie bevorzugt, weil damit auch ein vergleichsweise hohes Motormoment bei niedrigen Drehzahlen erreichbar wird. Insbesondere kann durch die variable Turbinengeometrie ein so genanntes Turboloch vermieden werden.In order to be able to achieve low fuel consumption in motor vehicles, internal combustion engines with comparatively small cubic capacities are used, which only achieve the performance desired for the respective vehicle in combination with exhaust gas turbochargers. Exhaust gas turbochargers with variable turbine geometry are preferred because they also enable a comparatively high engine torque to be achieved at low speeds. In particular, a so-called turbo lag can be avoided through the variable turbine geometry.
Bei bisherigen Abgasturboladern haben die im Anströmbereich des Turbinenrads angeordneten Leitschaufeln zwischen dem Trägerring und der gegenüberliegenden radialen Ringfläche ein vergleichsweise großes axiales Spiel, um eine verklemmungsfreie Drehverstellung der Leitschaufeln bei hoher thermischer Belastung der Turbine des Abgasturboladers zu ermöglichen.In previous exhaust gas turbochargers, the guide vanes arranged in the inflow area of the turbine wheel between the carrier ring and the opposite radial ring surface have a comparatively large axial play in order to enable jamming-free rotary adjustment of the guide vanes when the turbine of the exhaust gas turbocharger is exposed to high thermal loads.
Dieses axiale Spiel ist zwar in der Offenlage der Leitschaufeln unbeachtlich, jedoch bedeutet es andererseits, dass sich der Anströmbereich des Turbinenrads nicht vollständig verschließen lässt, dass heißt in Schließlage der Leitschaufeln wird das Turbinenrad von einem nicht vernachlässigbaren und nicht steuerbaren Abgasstrom des zugeordneten Motors beaufschlagt.This axial play is irrelevant in the open position of the guide vanes, but on the other hand it means that the inflow area of the turbine wheel cannot be completely closed, i.e. when the guide vanes are in the closed position, the turbine wheel is acted upon by a non-negligible and uncontrollable exhaust gas flow from the associated motor.
Dementsprechend lässt sich der Abgasturbolader nicht optimal an die Betriebszustände des zugeordneten Verbrennungsmotors anpassen.Accordingly, the exhaust gas turbocharger cannot be optimally adapted to the operating states of the assigned internal combustion engine.
Zur Anpassung des Abgasturboladers an die jeweiligen Betriebszustände ist es grundsätzlich bekannt, den Trägerring oder die ringförmige Radialfläche axial beweglich anzuordnen und mit steuerbarem Druck in Richtung der Leitschaufeln zu drängen, so dass die Leitschaufeln zwischen dem Trägerring und der Ringfläche mit steuerbarer Kraft eingeklemmt werden.In order to adapt the exhaust gas turbocharger to the respective operating conditions, it is basically known to arrange the carrier ring or the annular radial surface in an axially movable manner and to push it with controllable pressure in the direction of the guide vanes so that the guide vanes are clamped between the carrier ring and the annular surface with controllable force.
So zeigt beispielsweise die
Aus der
Aus der
Aufgabe der Erfindung ist es nun, die variable Turbinengeometrie zu optimieren.The object of the invention is now to optimize the variable turbine geometry.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.According to the invention, this object is achieved by the characterizing features of
Die Erfindung beruht auf dem allgemeinen Gedanken, das axiale Spiel der Leitschaufeln an die jeweiligen Betriebsbedingungen anzupassen.The invention is based on the general idea of adapting the axial play of the guide vanes to the respective operating conditions.
Dazu kann gemäß einer vorteilhaften Ausführungsform der Erfindung vorgesehen sein, den Trägerring axial verstellbar anzuordnen. Dabei kann dem Trägerring einerseits eine Anschubfederung, die den Trägerring in Richtung der ringförmigen Radialfläche spannt und andererseits eine Ausrückvorrichtung zugeordnet sein, die den Trägerring gegen die Anschubfederung zurückzustellen gestattet.For this purpose, it can be provided according to an advantageous embodiment of the invention to arrange the carrier ring axially adjustable. On the one hand, the carrier ring can be assigned a push-spring system that tensions the carrier ring in the direction of the annular radial surface and, on the other hand, a disengagement device that allows the carrier ring to be reset against the push-spring system.
Vorteilhafter Weise können bei dieser konstruktiven Ausgestaltung der Erfindung ähnliche Anschub- und Ausrückaggregate eingesetzt werden, wie sie für Kupplungen zwischen dem Antriebsstrang eines Kraftfahrzeugs und dessen Antriebsmotor üblich sind.In this structural embodiment of the invention, it is advantageously possible to use similar push-on and release units as are customary for clutches between the drive train of a motor vehicle and its drive motor.
Gegebenenfalls können an der ringförmigen Radialfläche Anschläge zur Begrenzung des Stellhubs des Trägerrings in Richtung der Radialfläche angeordnet sein.If necessary, stops for limiting the adjustment stroke of the carrier ring in the direction of the radial surface can be arranged on the annular radial surface.
Im Übrigen wird hinsichtlich bevorzugter Merkmale der Erfindung auf die Ansprüche und die nachfolgende Erläuterung der Zeichnung verwiesen, anhand der eine besonders bevorzugte Ausführungsform der Erfindung näher erläutert wird.Furthermore, with regard to preferred features of the invention, reference is made to the claims and the following explanation of the drawing, on the basis of which a particularly preferred embodiment of the invention is explained in more detail.
Schutz wird nicht nur für ausdrücklich angegebene oder dargestellte Merkmalskombinationen sondern auch für prinzipiell beliebige Kombinationen der angegebenen oder dargestellten Einzelmerkmale beansprucht.Protection is claimed not only for expressly specified or represented combinations of features but also in principle for any combinations of the specified or represented individual features.
In der Zeichnung zeigt
-
1 einen ausschnittsweisen Axialschnitt des Anströmbereichs des Turbinenrads des Abgasturboladers und -
2 entsprechende Schnittbilder, welche den Trägerring einerseits in an die radiale Ringfläche angenäherter Position und andererseits in von dieser Ringfläche abgerückter Position zeigen.
-
1 a partial axial section of the inflow area of the turbine wheel of the exhaust gas turbocharger and -
2 corresponding sectional images showing the carrier ring on the one hand in a position approached to the radial ring surface and on the other hand in a position moved away from this ring surface.
Gemäß
Die Leitschaufeln
Bei bisherigen Abgasturboladern ist der Trägerring
Erfindungsgemäß ist nun vorgesehen, dass sich der Trägerring
Gemäß
Mittels Ausrückhebel
Dabei kann die Abrückbewegung in prinzipiell beliebiger Weise gesteuert werden.The moving away movement can in principle be controlled in any way.
Erfindungsgemäß ist vorgesehen, den Abstand zwischen Trägerring
Zudem ist es auch möglich, den Trägerring
It is also possible to use the carrier ring
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008060251.5A DE102008060251B4 (en) | 2008-12-03 | 2008-12-03 | Exhaust gas turbocharger with variable turbine geometry |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008060251.5A DE102008060251B4 (en) | 2008-12-03 | 2008-12-03 | Exhaust gas turbocharger with variable turbine geometry |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102008060251A1 DE102008060251A1 (en) | 2010-06-10 |
DE102008060251B4 true DE102008060251B4 (en) | 2021-08-12 |
Family
ID=42145490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008060251.5A Expired - Fee Related DE102008060251B4 (en) | 2008-12-03 | 2008-12-03 | Exhaust gas turbocharger with variable turbine geometry |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008060251B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4361407A1 (en) * | 2022-10-28 | 2024-05-01 | Atlas Copco Energas Gmbh | Turbomachine with adjustable guide elements and method of operating the turbomachine |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011121394A1 (en) | 2011-12-17 | 2013-06-20 | Ihi Charging Systems International Gmbh | Adjustable control device for use in turbine of turbo-supercharger in combustion engine, has carrier ring axially positionable by rotary ring along symmetry axis, where carrier ring and rotary ring are arranged in force-transferable manner |
GB201408087D0 (en) * | 2014-05-07 | 2014-06-18 | Cummins Ltd | Variable geometry turbine assembly |
DE102015100673A1 (en) * | 2015-01-19 | 2016-07-21 | Ihi Charging Systems International Gmbh | Adjustable guide device for an exhaust gas guide section of an exhaust gas turbocharger, exhaust gas guide section for an exhaust gas turbocharger and exhaust gas turbocharger |
PT3542033T (en) | 2016-11-18 | 2023-10-17 | Air Liquide | A low friction inlet nozzle for a turbo expander |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5769602A (en) | 1995-04-26 | 1998-06-23 | Rotoflow Corporation | Active automatic clamping control |
DE19961613A1 (en) | 1999-12-21 | 2001-07-19 | Daimler Chrysler Ag | Exhaust gas turbine of an exhaust gas turbocharger for an internal combustion engine |
EP1420152A2 (en) | 2002-11-18 | 2004-05-19 | BorgWarner Turbo Systems GmbH | Turbocharger |
-
2008
- 2008-12-03 DE DE102008060251.5A patent/DE102008060251B4/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5769602A (en) | 1995-04-26 | 1998-06-23 | Rotoflow Corporation | Active automatic clamping control |
DE19961613A1 (en) | 1999-12-21 | 2001-07-19 | Daimler Chrysler Ag | Exhaust gas turbine of an exhaust gas turbocharger for an internal combustion engine |
EP1420152A2 (en) | 2002-11-18 | 2004-05-19 | BorgWarner Turbo Systems GmbH | Turbocharger |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4361407A1 (en) * | 2022-10-28 | 2024-05-01 | Atlas Copco Energas Gmbh | Turbomachine with adjustable guide elements and method of operating the turbomachine |
Also Published As
Publication number | Publication date |
---|---|
DE102008060251A1 (en) | 2010-06-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19816645B4 (en) | Turbocharger turbine | |
EP0093462B1 (en) | Turbo charger with a sliding ring valve | |
DE102004035044A1 (en) | Compressor in an exhaust gas turbocharger for an internal combustion engine and method for operating a compressor | |
DE102016002701A1 (en) | Turbocharger turbine assembly | |
WO2007121843A1 (en) | Turbocharger with adjustable turbine geometry and pressure compensating opening in the blade carrier ring | |
DE102006019780A1 (en) | Exhaust gas turbocharger in an internal combustion engine | |
WO2006133838A1 (en) | Waste gas turbine in a waste gas turbocharger | |
DE19924228A1 (en) | Multi-flow, adjustable exhaust gas turbocharger | |
DE112014004824T5 (en) | VTG turbocharger with wastegate controlled by a shared actuator | |
EP2209969A2 (en) | Supercharger device | |
WO2010069301A2 (en) | Fully variable turbine for exhaust gas turbocharger | |
DE102008060251B4 (en) | Exhaust gas turbocharger with variable turbine geometry | |
EP2617947B1 (en) | Aircraft gas turbine engine with adjustable fan | |
DE102014223044A1 (en) | Exhaust gas turbocharger and internal combustion engine | |
DE102016002722A1 (en) | Turbocharger turbine nozzle and safety structure | |
EP1420152A2 (en) | Turbocharger | |
EP1530671B1 (en) | Exhaust gas turbocharger for an internal combustion engine | |
DE102014108292A1 (en) | Diffuser with variable geometry and associated operating method | |
DE102011003991A1 (en) | Camshaft adjuster with a pressure accumulator | |
DE102010051777A1 (en) | Turbine for an exhaust gas turbocharger of an internal combustion engine | |
DE102013006369B4 (en) | Ring slide device for an exhaust gas turbocharger | |
DE102011115206A1 (en) | Exhaust gas turbocharger for internal combustion engine, has two valves that are formed such that respective opening states of valves are set differently depending on the state of engine for optimized adjustment of operating parameters | |
DE102010054914A1 (en) | Guide device for fluid energy machine, particularly exhaust gas turbocharger, comprises inner ring and outer ring surrounding inner ring from outer peripheral side, where inner ring and outer ring are rotatable around rotation axis | |
DE102015105219A1 (en) | Regulating device for an exhaust gas guide portion of an exhaust gas turbocharger | |
DE102012108975A1 (en) | Adjustable distributor for an exhaust gas turbocharger and turbocharger |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
R163 | Identified publications notified | ||
R163 | Identified publications notified |
Effective date: 20120613 |
|
R012 | Request for examination validly filed |
Effective date: 20130321 |
|
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R081 | Change of applicant/patentee |
Owner name: BMTS TECHNOLOGY GMBH & CO. KG, DE Free format text: FORMER OWNER: BOSCH MAHLE TURBO SYSTEMS GMBH & CO. KG, 70376 STUTTGART, DE |
|
R082 | Change of representative |
Representative=s name: BRP RENAUD UND PARTNER MBB RECHTSANWAELTE PATE, DE |
|
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R082 | Change of representative |
Representative=s name: HERRMANN, JOCHEN, DIPL.-ING., DE |
|
R082 | Change of representative |
Representative=s name: HERRMANN, JOCHEN, DIPL.-ING., DE |
|
R020 | Patent grant now final | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |