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DE10238412A1 - Turbocharger with variable turbine geometry for IC engines has guide blade adjusting ring born in three inner radial bearings - Google Patents

Turbocharger with variable turbine geometry for IC engines has guide blade adjusting ring born in three inner radial bearings Download PDF

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Publication number
DE10238412A1
DE10238412A1 DE10238412A DE10238412A DE10238412A1 DE 10238412 A1 DE10238412 A1 DE 10238412A1 DE 10238412 A DE10238412 A DE 10238412A DE 10238412 A DE10238412 A DE 10238412A DE 10238412 A1 DE10238412 A1 DE 10238412A1
Authority
DE
Germany
Prior art keywords
adjusting ring
turbocharger
adjusting
ring
guide vanes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE10238412A
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German (de)
Inventor
Roland Dr. Baar
Mario Sievert
Andreas Rhein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volkswagen AG
Original Assignee
Volkswagen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volkswagen AG filed Critical Volkswagen AG
Priority to DE10238412A priority Critical patent/DE10238412A1/en
Publication of DE10238412A1 publication Critical patent/DE10238412A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

The turbocharger has a turbine with pivoted guide blades (14) with adjusting levers (16), acting with an adjusting ring (22), to set the blades at an angle relative to flow direction. The levers project with a lever arm (18) into apertures (20) in the ring. The ring is born with its radial inner surface in three inner slide bearings (24). Each bearing has a U-shaped bearing section engaging around the inner periphery of the adjusting ring.

Description

Die Erfindung betrifft einen Turbolader mit variabler Turbinengeometrie, mit an einem Leitschaufelträger schwenkbar angeordneten Leitschaufeln einer Turbine, denen jeweils ein Verstellhebel zugeordnet ist, und mit einem Verstellring, welcher mit den Verstellhebeln zusammen wirkt und durch Drehung relativ zum Leitschaufelträger eine Winkelstellung der Leitschaufeln relativ zu einer Strömungsrichtung kollektiv für alle Leitschaufeln verstellt, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a turbocharger with variable turbine geometry, swiveling on a guide vane carrier arranged guide vanes of a turbine, each of which an adjusting lever is assigned, and with an adjusting ring, which with the adjusting levers works together and by rotating relative to the guide vane carrier Angular position of the guide vanes relative to a flow direction collectively for all guide vanes adjusted, according to the preamble of the claim 1.

Aus der DE 100 13 335 A1 ist ein Turbolader bekannt, bei dem der Stellring an seiner Außenfläche auf Wälzkörpern gelagert ist. Diese Wälzkörper sind als an einem Tragring schwenkbar gelagerte, einarmige Hebel ausgebildet. Bei einer über eine Fremdsteuerung eingeleiteten Drehung des Stellringes wälzen sich die in Nuten geführten Abschnitte der Außenfläche des Stellringes bei gleichzeitigem Schwenken der einarmigen Hebel auf einem Nutgrund ab. Dies soll eine Selbsthemmung des Stellringes während einer Drehbewegung vermeiden.From the DE 100 13 335 A1 a turbocharger is known in which the adjusting ring is mounted on rolling elements on its outer surface. These rolling elements are designed as single-arm levers pivotably mounted on a support ring. When the adjusting ring is initiated by an external control, the sections of the outer surface of the adjusting ring guided in grooves roll on a groove base while the one-armed lever is pivoted at the same time. This is to avoid self-locking of the collar during a rotary movement.

Aus der EP 0 160 460 A2 ist ein Turbolader mit verstellbarer Turbinengeometrie bekannt, bei dem der Verstellring mittels Rollen gelagert ist. Die Rollen sind an einer der Stirnflächen des Verstellringes angeordnet und überragen einen Außenumfang des Verstellringes in radialer Richtung. Der Stellring ist in einer ringförmigen Ausnehmung drehbar angeordnet, wobei die Rollen in eine Erweiterung der Ausnehmung in axialer Richtung greifen.From the EP 0 160 460 A2 a turbocharger with adjustable turbine geometry is known, in which the adjusting ring is mounted by means of rollers. The rollers are arranged on one of the end faces of the adjusting ring and project beyond an outer circumference of the adjusting ring in the radial direction. The adjusting ring is rotatably arranged in an annular recess, the rollers engaging in an extension of the recess in the axial direction.

Die zuvor beschriebenen Lagerungen für den Stellring sind jedoch mechanisch aufwendig, kostenintensiv, haben einen hohen Bauraumbedarf und sind mit einer hohen Anzahl von Einzelteilen verbunden.The bearings described above for the However, the collar is mechanically complex and costly a high space requirement and are with a large number of individual parts connected.

Der Erfindung liegt die Aufgabe zugrunde, einen Turbolader der obengenannten Art bzgl. seines mechanischen Aufbaus einfacher zu gestalten.The invention is based on the object a turbocharger of the above type with regard to its mechanical Construction easier to make.

Diese Aufgabe wird erfindungsgemäß durch einen Turbolader der o.g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen angegeben.This object is achieved by a Turbocharger of the above Kind with the features characterized in claim 1 solved. Advantageous embodiments of the invention are specified in the dependent claims.

Dazu ist es erfindungsgemäß vorgesehen, dass der Verstellring an seiner radialen Innenfläche in mehreren, in Umfangsrichtung voneinander beabstandeten und bezüglich des Verstellringes radial innen liegend angeordneten Gleitlagern geführt ist.For this purpose, it is provided according to the invention that the adjusting ring on its radial inner surface in several, in the circumferential direction spaced apart and radial with respect to the adjusting ring internal slide bearings is guided.

Dies hat den Vorteil, dass die Lagerung vereinfacht ist und weniger Einzelbauteile benötigt. Gleichzeitig ist ein Bauraumbedarf reduziert.This has the advantage of storage is simplified and requires fewer individual components. At the same time is a Space requirements reduced.

Eine gleichzeitige Lagerung in axialer, wie auch radialer Richtung erzielt man dadurch, dass jedes Gleitlager einen U-förmigen Lagerabschnitt aufweist, welcher den Verstellring an dessen Innenumfang umgreift.Simultaneous storage in axial, as well as the radial direction can be achieved by using any plain bearing a U-shaped Bearing section which has the adjusting ring on its inner circumference embraces.

In einer bevorzugten Ausführungsform sind drei in Umfangsrichtung gleichmäßig voneinander beabstandete Gleitlager vorgesehen.In a preferred embodiment are three circumferentially evenly spaced from each other Plain bearings provided.

Weitere Merkmale, Vorteile und vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den abhängigen Ansprüchen, sowie aus der nachstehenden Beschreibung der Erfindung anhand der beigefügten Zeichnungen. Diese zeigen inOther features, advantages and advantageous configurations the invention result from the dependent claims, as well from the following description of the invention with reference to the accompanying drawings. These show in

1 eine schematische Darstellung eines erfindungsgemäß ausgebildeten Turbinenteils eines Abgasturboladers, 1 2 shows a schematic illustration of a turbine part of an exhaust gas turbocharger designed according to the invention,

2 eine vergrößerte Detailansicht einer Lagerung des Verstellringes gemäß 1 und 2 an enlarged detail view of a storage of the adjusting ring according to 1 and

3 eine Schnittansicht entlang Linie III-III von 2. 3 a sectional view taken along line III-III of 2 ,

1 und 2 zeigen schematisch eine bevorzugte Ausführungsform eines Turbinenteils eines ansonsten nicht näher dargestellten Abgasturboladers einer Brennkraftmaschine. An einem Leitschaufelträger 10 sind um eine Achse 12 schwenkbar gelagerte Leitschaufeln 14 angeordnet. Die Schwenkachsen 12 der Leitschaufeln 14 sind fest auf dem Leitschaufelträger 10 angeordnet. Jeder Leitschaufel 14 ist ein Verstellhebel 16 zugeordnet, welcher drehfest mit der jeweiligen Leitschaufel 14 verbunden ist und in radialer Richtung mit einem Hebelarm 18 in eine Aussparung 20 in einem Verstellring 22 hinein ragt. Mit "radial" ist hier und nachfolgend eine Richtung bzgl. einer Drehachse 28 der Turbine gemeint. 1 and 2 schematically show a preferred embodiment of a turbine part of an otherwise not shown exhaust gas turbocharger of an internal combustion engine. On a guide vane carrier 10 are about an axis 12 pivoting guide vanes 14 arranged. The swivel axes 12 the guide vanes 14 are firmly on the guide vane carrier 10 arranged. Every guide vane 14 is an adjustment lever 16 assigned, which rotatably with the respective guide vane 14 is connected and in the radial direction with a lever arm 18 in a recess 20 in an adjustment ring 22 protrudes into it. With "radial" is here and below a direction with respect to an axis of rotation 28 the turbine meant.

Der Verstellring 22 ist bezüglich des Leitschaufelträgers 10 schwenkbar angeordnet, wobei eine Verschwenkung des Verstellringes 22 bezüglich des Leitschaufelträgers 10 zu einem Verschwenken der Verstellhebel 16 um die jeweiligen Achsen 12 bedingt. Mit den Verstellhebeln 16 verschwenken auch die jeweiligen Leitschaufeln 14 um die Achsen 12. Je nach Stellung der Leitschaufeln 14 in Strömungsrichtung wird ein Druck bzw. eine Verdichterleistung geregelt. Hierdurch erfolgt mittels einer Verschwenkung des Verstellringes 22 eine Regelung von Luftmasse und Ladedruck auf einer nicht dargestellten Verdichterseite des Abgasturboladers bei verschiedenen Betriebspunkten einer Brennkraftmaschine, wobei durch die Leitschaufeln 14 die Turbine (Leistungsabgabe/Drehzahl) und der Verdichter über die Turbine (Welle) geregelt wird. Das Verschwenken des Verstellringes 22 erfolgt mit einer externen, nicht dargestellten Stelleinrichtung.The adjustment ring 22 is regarding the guide vane carrier 10 arranged pivotably, with a pivoting of the adjusting ring 22 with respect to the guide vane carrier 10 to pivot the adjustment lever 16 around the respective axes 12 conditionally. With the adjustment levers 16 also pivot the respective guide vanes 14 around the axes 12 , Depending on the position of the guide vanes 14 a pressure or a compressor output is regulated in the direction of flow. This is done by pivoting the adjusting ring 22 a regulation of air mass and boost pressure on a compressor side of the exhaust gas turbocharger, not shown, at different operating points of an internal combustion engine, with the guide vanes 14 the turbine (power output / speed) and the compressor is controlled by the turbine (shaft). The pivoting of the adjustment ring 22 takes place with an external control device, not shown.

Erfindungsgemäß sind Gleitlager 24 vorgesehen, welche an einer radial innenliegenden Seite des Verstellringes 22 angeordnet sind und eine gleitende Lagerung des Verstellringes 22 zur Verfügung stellen. Wie aus 3 ersichtlich, sind die Gleitlager hierzu mit einem U-förmig ausgebildeten Lagerabschnitt 26 ausgebildet, welcher eine radiale Innenseite des Verstellringes 22 umgreift. Hierdurch ergibt sich sowohl eine radiale als auch eine axiale Gleitlagerung des Verstellringes 22. Diese Lagerung hat einen einfachen mechanischen Aufbau bei gleichzeitig hoher Funktionssicherheit.According to the invention are plain bearings 24 provided, which on a radially inner side of the adjusting ring 22 are arranged and a sliding bearing of the adjusting ring 22 provide. How out 3 the plain bearings are visible for this purpose with a U-shaped bearing section 26 formed which has a radial inside of the adjusting ring 22 embraces. This results in both a radial and an axial sliding bearing of the adjusting ring 22 , This storage has a simple mechanical structure with high functional reliability.

Die Gleitlager 24 sind als fest eingebaute, starre Führungselemente ausgebildet und stellen eine Innenführung des Verstellringes 22 zur Verfügung.The plain bearings 24 are designed as fixed, rigid guide elements and provide an internal guide for the adjustment ring 22 to disposal.

Claims (3)

Turbolader mit variabler Turbinengeometrie einer Brennkraftmaschine, insbesondere eines Kraftfahrzeuges, mit an einem Leitschaufelträger (10) schwenkbar angeordneten Leitschaufeln (14) einer Turbine, denen jeweils ein Verstellhebel zugeordnet ist, und mit einem Verstellring, welcher mit den Verstellhebeln zusammen wirkt und durch Drehung relativ zum Leitschaufelträger eine Winkelstellung der Leitschaufeln relativ zu einer Strömungsrichtung kollektiv für alle Leitschaufeln verstellt, dadurch gekennzeichnet, dass der Verstellring an seiner radialen Innenfläche in mehreren, in Umfangsrichtung voneinander beabstandeten und bezüglich des Verstellringes radial innen liegend angeordneten Gleitlagern geführt ist.Turbocharger with variable turbine geometry of an internal combustion engine, in particular a motor vehicle, with a guide vane carrier ( 10 ) pivoting guide vanes ( 14 ) a turbine, to each of which an adjusting lever is assigned, and with an adjusting ring, which cooperates with the adjusting levers and, by rotating relative to the guide vane carrier, collectively adjusts an angular position of the guide vanes relative to a flow direction for all guide vanes, characterized in that the adjusting ring on its radial inner surface in several, spaced from each other in the circumferential direction and with respect to the adjusting ring lying radially inside is arranged. Turbolader nach Anspruch 1, dadurch gekennzeichnet, dass jedes Gleitlager einen U-förmigen Lagerabschnitt aufweist, welcher den Verstellring an dessen Innenumfang umgreift.Turbocharger according to claim 1, characterized in that each Plain bearing a U-shaped Bearing section which has the adjusting ring on its inner circumference embraces. Turbolader nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass drei in Umfangsrichtung gleichmäßig voneinander beabstandete Gleitlager vorgesehen sind.Turbocharger according to at least one of the preceding claims, characterized characterized that three circumferentially evenly from each other spaced plain bearings are provided.
DE10238412A 2002-08-22 2002-08-22 Turbocharger with variable turbine geometry for IC engines has guide blade adjusting ring born in three inner radial bearings Withdrawn DE10238412A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10238412A DE10238412A1 (en) 2002-08-22 2002-08-22 Turbocharger with variable turbine geometry for IC engines has guide blade adjusting ring born in three inner radial bearings

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Application Number Priority Date Filing Date Title
DE10238412A DE10238412A1 (en) 2002-08-22 2002-08-22 Turbocharger with variable turbine geometry for IC engines has guide blade adjusting ring born in three inner radial bearings

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1635041A1 (en) * 2004-09-11 2006-03-15 IHI Charging Systems International GmbH Variable stator vanes for a turbocharger
WO2007093407A1 (en) * 2006-02-16 2007-08-23 Borgwarner Inc. Turbocharger comprising adjustable guide blades, blade lever and adjusting ring therefor
EP1965037A1 (en) * 2007-03-02 2008-09-03 Siemens Aktiengesellschaft Axial and radial support of the unison ring for inlet guide vane assemblies of hot gas expanders
WO2008118833A1 (en) * 2007-03-26 2008-10-02 Honeywell International Inc. Variable-vane assembly having fixed axial-radial guides and fixed radial-only guides for unison ring
DE102007022356A1 (en) * 2007-05-12 2008-11-13 Mahle International Gmbh Motor exhaust turbocharger has a mounting for the vanes, which remains stable irrespective of the vane settings
DE102009008531A1 (en) 2009-02-11 2010-08-12 Bosch Mahle Turbo Systems Gmbh & Co. Kg Adjusting ring for a charging device, in particular for an exhaust gas turbocharger of a motor vehicle
CN101943030A (en) * 2009-04-10 2011-01-12 霍尼韦尔国际公司 Variable-vane assembly with the fixed guide pin that is used for unison
CN101074609B (en) * 2006-05-18 2011-04-06 曼柴油机欧洲股份公司 Guide for an axial inlet turbine of an exhaust gas turbocharger
US8177491B2 (en) * 2005-08-02 2012-05-15 Honeywell International Inc. Variable geometry nozzle device
CN102966381A (en) * 2011-08-31 2013-03-13 诺沃皮尼奥内有限公司 Compact igv for turboexpander application
CN104018889A (en) * 2013-03-01 2014-09-03 株式会社Ihi Variable nozzle unit and variable geometry system turbocharger
CN111075512A (en) * 2018-10-19 2020-04-28 博格华纳公司 Turbocharger with variable turbine geometry
DE112010004597B4 (en) 2009-11-27 2022-05-25 Borgwarner Inc. Turbocharger with variable turbine geometry

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860827A (en) * 1953-06-08 1958-11-18 Garrett Corp Turbosupercharger
US4502836A (en) * 1982-07-02 1985-03-05 Swearingen Judson S Method for nozzle clamping force control
EP0378343B1 (en) * 1989-01-10 1995-06-07 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Variable geometry turbochargers
DE19717855C2 (en) * 1997-04-23 2000-11-16 Ver Energiewerke Ag Device for adjusting the guide vanes of turbomachines, in particular water turbines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860827A (en) * 1953-06-08 1958-11-18 Garrett Corp Turbosupercharger
US4502836A (en) * 1982-07-02 1985-03-05 Swearingen Judson S Method for nozzle clamping force control
EP0378343B1 (en) * 1989-01-10 1995-06-07 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Variable geometry turbochargers
DE19717855C2 (en) * 1997-04-23 2000-11-16 Ver Energiewerke Ag Device for adjusting the guide vanes of turbomachines, in particular water turbines

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1635041A1 (en) * 2004-09-11 2006-03-15 IHI Charging Systems International GmbH Variable stator vanes for a turbocharger
US8177491B2 (en) * 2005-08-02 2012-05-15 Honeywell International Inc. Variable geometry nozzle device
US8186944B2 (en) 2006-02-16 2012-05-29 Borgwarner Inc. Turbocharger comprising adjustable guide blades, blade lever and adjusting ring therefor
WO2007093407A1 (en) * 2006-02-16 2007-08-23 Borgwarner Inc. Turbocharger comprising adjustable guide blades, blade lever and adjusting ring therefor
KR101286263B1 (en) * 2006-02-16 2013-07-15 보르그워너 인코퍼레이티드 Turbocharger comprising adjustable guide blades, blade lever and adjusting ring therefor
CN101074609B (en) * 2006-05-18 2011-04-06 曼柴油机欧洲股份公司 Guide for an axial inlet turbine of an exhaust gas turbocharger
EP1965037A1 (en) * 2007-03-02 2008-09-03 Siemens Aktiengesellschaft Axial and radial support of the unison ring for inlet guide vane assemblies of hot gas expanders
WO2008118833A1 (en) * 2007-03-26 2008-10-02 Honeywell International Inc. Variable-vane assembly having fixed axial-radial guides and fixed radial-only guides for unison ring
US7670107B2 (en) 2007-03-26 2010-03-02 Honeywell International Inc. Variable-vane assembly having fixed axial-radial guides and fixed radial-only guides for unison ring
CN101542075B (en) * 2007-03-26 2013-01-09 霍尼韦尔国际公司 Variable-vane assembly with fixed axial-radial guide for unison ring and fixed single radial guide
DE102007022356A1 (en) * 2007-05-12 2008-11-13 Mahle International Gmbh Motor exhaust turbocharger has a mounting for the vanes, which remains stable irrespective of the vane settings
DE102009008531A1 (en) 2009-02-11 2010-08-12 Bosch Mahle Turbo Systems Gmbh & Co. Kg Adjusting ring for a charging device, in particular for an exhaust gas turbocharger of a motor vehicle
EP2226474A2 (en) 2009-02-11 2010-09-08 Bosch Mahle Turbo Systems GmbH & Co. KG Adjustment ring for a charger, in particular an exhaust gas turbocharger of a motor vehicle
US8747058B2 (en) 2009-02-11 2014-06-10 Bosch Mahle Turbo Systems GmbH Co. KG Adjusting ring for a charging device, more preferably for an exhaust gas turbocharger of a motor vehicle
US9017017B2 (en) * 2009-04-10 2015-04-28 Honeywell Internatonal Inc. Variable-vane assembly having fixed guide pins for unison ring
CN101943030A (en) * 2009-04-10 2011-01-12 霍尼韦尔国际公司 Variable-vane assembly with the fixed guide pin that is used for unison
DE112010004597B4 (en) 2009-11-27 2022-05-25 Borgwarner Inc. Turbocharger with variable turbine geometry
CN102966381B (en) * 2011-08-31 2016-06-29 诺沃皮尼奥内有限公司 Compact IGV for turbine expander application
US9464533B2 (en) 2011-08-31 2016-10-11 Nuovo Pignone S.P.A Compact IGV for turboexpander application
CN102966381A (en) * 2011-08-31 2013-03-13 诺沃皮尼奥内有限公司 Compact igv for turboexpander application
CN104018889A (en) * 2013-03-01 2014-09-03 株式会社Ihi Variable nozzle unit and variable geometry system turbocharger
US9945245B2 (en) 2013-03-01 2018-04-17 Ihi Corporation Variable nozzle unit and variable geometry system turbocharger
DE102014203354B4 (en) 2013-03-01 2023-11-02 Ihi Corp. VARIABLE NOZZLE UNIT AND VARIABLE TURBINE GEOMETRY CHARGER SYSTEM
CN111075512A (en) * 2018-10-19 2020-04-28 博格华纳公司 Turbocharger with variable turbine geometry
CN111075512B (en) * 2018-10-19 2023-12-01 博格华纳公司 Turbocharger with variable turbine geometry

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