EP2446130A1 - Turbocompresseur et procédé de montage d'un dispositif de régulation d'un turbocompresseur - Google Patents

Turbocompresseur et procédé de montage d'un dispositif de régulation d'un turbocompresseur

Info

Publication number
EP2446130A1
EP2446130A1 EP10723566A EP10723566A EP2446130A1 EP 2446130 A1 EP2446130 A1 EP 2446130A1 EP 10723566 A EP10723566 A EP 10723566A EP 10723566 A EP10723566 A EP 10723566A EP 2446130 A1 EP2446130 A1 EP 2446130A1
Authority
EP
European Patent Office
Prior art keywords
control rod
turbocharger
turbine
guide
control
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Withdrawn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
EP10723566A
Other languages
German (de)
English (en)
Inventor
Ralf Böning
Christian Uhlig
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.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP2446130A1 publication Critical patent/EP2446130A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • F02B37/183—Arrangements of bypass valves or actuators therefor
    • F02B37/186—Arrangements of actuators or linkage for bypass valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/105—Final actuators by passing part of the fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/141—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
    • 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
    • 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
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/49318—Repairing or disassembling

Definitions

  • the present invention relates to a turbocharger and to a method of assembling a controller of a turbocharger.
  • turbocharger for an internal combustion engine of a motor vehicle, consisting essentially of a radial turbine with a turbine wheel, which is driven by the exhaust gas flow of the internal combustion engine, and a centrifugal compressor arranged in the intake tract of the internal combustion engine with a compressor wheel, which is coupled by means of a turbocharger shaft with the turbine wheel.
  • Such turbochargers are generally used to increase the performance of internal combustion engines.
  • wastegate valve To control the amount of exhaust gas flowing through the turbine, it is possible on the turbine side of the turbocharger, inter alia. a so-called wastegate valve can be used.
  • a wastegate is a controllable bypass valve. This directs at a set boost pressure on the compressor side a portion of the hot exhaust gases generated around the turbine directly into the exhaust. As a result, too high a rotational speed of the turbocharger and, associated therewith, an overload of the bearings and an exceeding of the mechanical and thermal limits of the internal combustion engine can be prevented.
  • the control of the wastegate valve can be done for example by a pressure box, which with over- or under- pressure is supplied.
  • the coupling of the pressure cell to the wastegate valve is usually via a control rod.
  • This control rod can be coupled by means of an intermediate piece, which may be, for example, as a ball head, as an adjustable ball head or as a screw, with a control lever which is rotatably connected to the wastegate valve.
  • an intermediate piece which may be, for example, as a ball head, as an adjustable ball head or as a screw, with a control lever which is rotatably connected to the wastegate valve.
  • the adjustment of the wastegate valve is usually carried out in a complex manner manually, e.g. First, the pressure can be charged with a defined pressure and then the wastegate valve in a
  • a turbocharger in particular for an internal combustion engine of a motor vehicle, having a turbine, which has a turbine housing, with a control device for controlling an exhaust gas flow flowing through the turbine, comprising: an adjusting element for adjusting the exhaust gas flow, a control lever arranged on the turbine housing for actuating the adjusting element a control rod which is connected to the control lever via an adjusting piece, wherein the setting piece has a guide for stepless displacement of the control rod in the adjusting piece, and wherein the control rod is fixed in the guide by a StoffSchluss.
  • a method of assembling a control device of a turbocharger comprising the steps of: inserting the control rod into the guide of the adjusting piece; Positioning the adjusting element in an end position, which corresponds to a maximum or minimum position of the adjusting element with respect to the adjustment of the exhaust gas flow; Axially moving the control rod by means of the control device in a position which corresponds to the end position of the adjusting element; and fixing the control rod in the guide.
  • the adjusting element, the control lever, the adjusting piece with the guide and the control rod are components of the control device.
  • the control device is used to control the exhaust gas flow flowing through the turbine.
  • the fact that the control rod is continuously displaceable in the guide, it can be brought into any axial position for guidance and fixed there indissoluble.
  • the idea on which the present invention is based is to fix the control rod in the guide by means of a material closure.
  • the control rod is first introduced into the guide of the setting piece. Since the control rod is not fixed to the setting piece, it can be moved continuously in the guide.
  • the adjustment element for regulating the exhaust gas flow flowing through the turbine can be positioned automatically in an end position, for example. By an axial movement of the control rod by the control device, this can be brought into a position corresponding to the end position of the adjusting element. This axial movement can also be automated. It is thus possible to set the correct position of the control rod, for example, for an end position of the control element. Then the control rod can be fixed in the set position in the guide.
  • the adjustment element has a wastegate valve for controlling an exhaust gas quantity of the exhaust gas flow flowing through the turbine.
  • a wastegate valve allows a simple and inexpensive construction of the control device.
  • By means of a wastegate valve it is e.g. at full load of the internal combustion engine possible to direct a portion of the exhaust gases directly into the exhaust of the engine, so as not to exceed the maximum permitted speed of the turbocharger and the mechanical and thermal limits of the engine by a high boost pressure.
  • the setting element has a variable turbine geometry (VTG) with adjustable guide vanes for controlling a flow direction of the exhaust gas flow flowing through the turbine.
  • VFG variable turbine geometry
  • a variable turbine geometry allows a variable impingement of the turbine blading.
  • the speed of the turbine wheel and thus the boost pressure on the compressor side of the turbocharger can be controlled while the amount of exhaust gas remains the same. There is thus no exhaust discharged unused in the exhaust. This increases the efficiency of the turbocharger and the internal combustion engine.
  • the control device has a control device.
  • the control device By means of the control device, the exhaust gas flow flowing through the turbine, in particular the exhaust gas mass flow, can advantageously be adapted to the operating state of the engine.
  • the control device is designed as a pressure cell, wherein the pressure cell is coupled to the control rod for the axial movement of the control rod. This makes it possible to pressurize the pressure cell with an already provided by a compressor of the turbocharger overpressure or provided by a vacuum pump, in particular a diesel engine, provided negative pressure. As a result, the structure of the turbocharger is simplified and thus cheaper.
  • control device is designed as an electromagnetic actuator, wherein the electromechanical actuator is coupled to the control rod for the axial movement of the control rod.
  • electromechanical actuator is coupled to the control rod for the axial movement of the control rod.
  • the adjusting piece is riveted to the control lever. This ensures extensive security against manipulation. Furthermore, this compound can be executed and prefabricated with a minimum number of components. This reduces the manufacturing, material and storage costs.
  • control rod in the guide by a Wi fixed resistance welding process.
  • control rod is fixed in the guide by a crimping process. This makes it possible to fix the connection between the control rod and the setting piece with a simple tool tamper-proof.
  • Fig. 1 is a schematic view of a first embodiment of a turbocharger according to the invention
  • FIG. 2 is a schematic view of a second embodiment of a turbocharger according to the invention.
  • Fig. 3 is a schematic partial view of a section through a part of the control device for a turbocharger according to the invention.
  • FIG. 1 shows a schematic view of a first exemplary embodiment of a turbocharger 1 according to the invention.
  • the turbocharger according to the invention designated here by reference numeral 1, has a turbine 2 in a known manner, the turbine 2 being provided in a turbine housing 3.
  • turbocharger 1 has a control device 10 for controlling the exhaust gas flow flowing through the turbine 2.
  • the control device 10 has an adjusting element 4, a non-rotatably connected to the adjusting element 4 control lever
  • the control lever 5 is connected to the control rod 7 via the adjusting piece 8.
  • the adjusting element 4 is designed as a wastegate valve 4 for adjusting the amount of exhaust gas flowing through the turbine 2.
  • the adjusting piece 8 has a guide 9 for guiding the control rod 7.
  • the control rod 7 is continuously displaceable in this guide 9 and can be fixed in an arbitrary axial position in the guide 9 preferably by a material connection.
  • the control device 10 also has a control device 6, which is connected to the control rod 7.
  • the control device 6 is preferably designed as a pressure cell, which can be controlled for example via a pressure generated by the compressor of the turbocharger 1.
  • the turbocharger 1 controls the exhaust gas flowing through the turbine 2 independently.
  • a vacuum box which is acted upon by a negative pressure generated by a vacuum pump
  • a more precise control of the control rod 7 is required, furthermore, the wastegate valve can already idle an internal combustion engine, for example, for preheating a Catalytic converter can be opened.
  • the control device 6 may also be designed as an electromechanical actuating unit. This electromechanical actuating unit can be controlled, for example, via a pressure sensor on the compressor of the turbocharger 1 or directly via the engine control of a motor vehicle.
  • the control lever 5 for actuating the wastegate valve 4 is preferably attached directly to the turbine housing 3, but it would also be possible, depending on the structural design, to attach the control lever 5 to any other location of the turbocharger housing or the internal combustion engine.
  • the connection between the control lever 5 and the intermediate piece 8 is preferably designed to be rotatable. This connection can be riveted. As a result, a play-free and tamper-proof connection between the control lever 5 and the setting piece 8 is ensured. Furthermore, this connection is to be made with a minimum number of parts.
  • control lever 5, the control rod 7 and the adjusting piece 8 are preferably made of metallic materials. However, it would also be possible to manufacture these components from heat-resistant plastic materials or, for example, composite materials.
  • the control rod 7 connected to the control device 6 is inserted into the guide 9 of the adjusting piece 8. Characterized in that the control rod 7 is continuously displaceable in the guide 9, the control rod 7 by the control device 6 in any axial position with respect to the Leadership 9 are brought. Subsequently, the wastegate valve 4 is positioned in a setting which corresponds to a maximum amount of exhaust gas flowing through the turbine 2, ie the wastegate valve 4 is closed. This positioning of the wastegate valve 4 is preferably carried out automatically, for example via a compressed air actuator, which presses the wastegate valve 4 into a closed position. The control rod 7 is now moved by the control device 6 into a position which corresponds to the maximum amount of exhaust gas flowing through the turbine 2.
  • the control rod 7 now has the correct position in the guide 9 of the adjusting 8 and can be fixed in the guide 9.
  • the fixing of the control rod 7 in the guide 9 by a resistance welding process. This welding process can be carried out very quickly and automatically.
  • a flanging method such as, for example, crimping, can be used to fix the control rod 7 in the guide 9.
  • the fixing of the control rod 7 in the guide 9 can also be done by any other welding method, by a soldering process or for example by an adhesive method.
  • the adjusting element 4 is formed in this second embodiment of the invention as a variable turbine geometry 4.
  • the guide vanes 11 are adjustably mounted in the turbine housing 3 and, depending on their position, guide the exhaust gas over the entire surface or only over part of the surface of the turbine blades of the turbine wheel 2.
  • the rotational speed of the turbine 2 changes.
  • the rotational speed of the turbine 2 and thus the rotational speed of the compressor 2 and thus the boost pressure of the internal combustion engine can be controlled.
  • the mounting method essentially corresponds to the procedure for adjusting the control device 10 of the first embodiment of the present invention shown in FIG. 1.
  • the vanes 11 of the variable turbine geometry 4 are brought into an end position, for example, a position in which a maximum speed of the turbine 2 is generated.
  • This hiring in an end position is preferably carried out automatically, for example by an electric servomotor, which presses the guide vanes in the end position.
  • the control rod is fixed in the guide 9.
  • 3 shows a schematic partial view of a section through a part of the control device 10.
  • FIG. 3 shows a detailed view of the control lever 7 and of the adjusting piece 8.
  • the adjusting piece 8 is here designed as a part of the control rod 7 enclosing sleeve.
  • the sleeve inner surface serves as a guide 9 for the control rod 7.
  • the cross section of the control rod 7 and the guide 9 is preferably circular, but it is also possible to use any other arbitrary cross section for the guide 9 and the control rod 7.
  • control rod 7 has a damping element, which
  • Vibrations of the control rod 7 attenuates. Vibrations of the control rod 7 may occur, for example, when using a compressor side controlled pressure cell as a control device 6. Pressure fluctuations on the compressor side of the turbocharger 1 can be transmitted via the pressure box and the control rod 7 on the adjustment 4. This can be effectively prevented by a damping element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Supercharger (AREA)

Abstract

L'invention concerne un turbocompresseur, en particulier pour un moteur à combustion interne de véhicule automobile. Le turbocompresseur selon l'invention comprend une turbine présentant un carter de turbine, ainsi qu'un dispositif de régulation qui sert à réguler un flux de gaz d'échappement traversant la turbine et qui présente un élément de réglage pour le réglage du flux de gaz d'échappement, un levier de régulation placé sur le carter de turbine et servant à l'actionnement de l'élément de réglage, ainsi qu'une tige de régulation reliée au levier de régulation par le biais d'une pièce de réglage. La pièce de réglage présente un guidage pour le déplacement continu de la tige de régulation dans la pièce de réglage et la tige de régulation peut être fixée dans le guidage par liaison de matière. L'invention concerne en outre un procédé pour le montage d'un dispositif de régulation d'un tel turbocompresseur.
EP10723566A 2009-06-22 2010-05-25 Turbocompresseur et procédé de montage d'un dispositif de régulation d'un turbocompresseur Withdrawn EP2446130A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009029880A DE102009029880A1 (de) 2009-06-22 2009-06-22 Turbolader und Verfahren zur Montage einer Regeleinrichtung eines Turboladers
PCT/EP2010/057100 WO2010149442A1 (fr) 2009-06-22 2010-05-25 Turbocompresseur et procédé de montage d'un dispositif de régulation d'un turbocompresseur

Publications (1)

Publication Number Publication Date
EP2446130A1 true EP2446130A1 (fr) 2012-05-02

Family

ID=42455381

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10723566A Withdrawn EP2446130A1 (fr) 2009-06-22 2010-05-25 Turbocompresseur et procédé de montage d'un dispositif de régulation d'un turbocompresseur

Country Status (5)

Country Link
US (1) US20120117966A1 (fr)
EP (1) EP2446130A1 (fr)
CN (1) CN102803679A (fr)
DE (1) DE102009029880A1 (fr)
WO (1) WO2010149442A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8869527B2 (en) 2009-09-03 2014-10-28 Volkswagen Ag Method for mounting and setting an actuator of an exhaust gas turbocharger, and an actuator intended for a charging device

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DE102011004917A1 (de) * 2011-03-01 2012-09-06 Bosch Mahle Turbo Systems Gmbh & Co. Kg Verfahren zum Justieren einer Druckdose/Unterdruckdose
DE102011088005A1 (de) * 2011-12-08 2013-06-13 Continental Automotive Gmbh Vorrichtung zur Steuerung des Wastegatesystems eines Abgasturboladers
DE102012203624B4 (de) 2012-03-07 2023-08-10 Borgwarner Inc. Abgasturbolader zur Verwendung mit einem Verbrennungsmotor
DE102012204497A1 (de) * 2012-03-21 2013-09-26 Mahle International Gmbh Wastegate-Ventilvorrichtung
US9856882B2 (en) * 2012-05-03 2018-01-02 Borgwarner Inc. Exhaust-gas turbocharger
JP2015524037A (ja) 2012-06-19 2015-08-20 ボーグワーナー インコーポレーテッド 排気ガスターボチャージャ
US9206735B2 (en) * 2012-08-02 2015-12-08 Honeywell International Inc. Actuator and valve linkage
KR20160028476A (ko) * 2013-07-22 2016-03-11 보르그워너 인코퍼레이티드 배기가스 터보과급기
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Publication number Priority date Publication date Assignee Title
US8869527B2 (en) 2009-09-03 2014-10-28 Volkswagen Ag Method for mounting and setting an actuator of an exhaust gas turbocharger, and an actuator intended for a charging device
US9562468B2 (en) 2009-09-03 2017-02-07 Volkswagen Ag Method for mounting and setting an actuator of an exhaust gas turbocharger, and an actuator intended for a charging device

Also Published As

Publication number Publication date
WO2010149442A1 (fr) 2010-12-29
US20120117966A1 (en) 2012-05-17
CN102803679A (zh) 2012-11-28
DE102009029880A1 (de) 2010-12-23

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