EP1860284A1 - Assemblage de carters - Google Patents

Assemblage de carters Download PDF

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Publication number
EP1860284A1
EP1860284A1 EP06405223A EP06405223A EP1860284A1 EP 1860284 A1 EP1860284 A1 EP 1860284A1 EP 06405223 A EP06405223 A EP 06405223A EP 06405223 A EP06405223 A EP 06405223A EP 1860284 A1 EP1860284 A1 EP 1860284A1
Authority
EP
European Patent Office
Prior art keywords
housing
turbine
gas inlet
bearing housing
bearing
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Withdrawn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
EP06405223A
Other languages
German (de)
English (en)
Inventor
Josef Bättig
Balz Flury
Marcel Meier
Markus Städeli
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.)
Accelleron Industries AG
Original Assignee
ABB Turbo Systems 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 ABB Turbo Systems AG filed Critical ABB Turbo Systems AG
Priority to EP06405223A priority Critical patent/EP1860284A1/fr
Publication of EP1860284A1 publication Critical patent/EP1860284A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F01D25/243—Flange connections; Bolting arrangements
    • 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
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/026—Scrolls for radial machines or engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/40—Application in turbochargers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
    • F05D2230/642—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins using maintaining alignment while permitting differential dilatation

Definitions

  • the invention relates to the field of exhaust gas turbochargers. It relates to a turbine housing, an exhaust gas turbine with such a turbine housing and a turbocharger with such an exhaust gas turbine.
  • Exhaust gas turbochargers are used to increase the performance of internal combustion engines. They include an exhaust gas turbine driven by the exhaust gases of the internal combustion engine and a compressor for compressing the fresh air supplied to the internal combustion engine. Turbine wheel and compressor wheel are usually arranged on a common shaft. In the lower power range of up to a few megawatts, turbochargers with radially impinged turbine wheel and internal bearing of the shaft are predominantly used.
  • the uncooled outer turbine housing, the gas inlet housing, which has a temperature of, for example, 650 ° C during operation, is usually mounted directly on the bearing housing, for example, considerably cooler, for example at 150 ° C.
  • the bearing housing in contrast to the gas-carrying channels, cooled to said temperature.
  • EP 0 118 051 shows how by means of a star-shaped, in the radial direction movable groove / comb connections a desaxation of the hotter component can be avoided.
  • EP 1 460 237 shows a connection between the bearing housing and the gas inlet housing a turbine of an exhaust gas turbocharger, in which a centering ring is provided for centering the gas inlet housing with respect to the shaft mounted in the bearing housing, wherein the centering ring and either the bearing housing or the gas inlet housing grooves and either radially or axially rectified centering cams Include engagement in the grooves. Due to the radially or axially rectified Zentri mecanicsnocken with corresponding grooves at least one of the connections between the bearing housing and the Centering ring and the centering ring and the gas inlet housing not form-fitting, whereby any positioning of the gas inlet housing relative to the bearing housing is made possible.
  • the preparation of the centering ring is relatively expensive and expensive. In operation, this compound due to the elastic and relatively small cross section of the centering a limited transverse stiffness on.
  • the invention has for its object to improve the housing of an exhaust gas turbine such that the exhaust gas turbine by means of improved centering of the turbine housing with respect to the shaft mounted in the bearing housing has a higher efficiency, while the greatest possible flexibility with respect to the positioning of the outer turbine housing parts to the bearing housing.
  • the turbine housing comprises a bearing housing and a gas inlet housing resting on the bearing housing and concentrically surrounding the bearing housing in the bearing area.
  • a gas inlet housing resting on the bearing housing and concentrically surrounding the bearing housing in the bearing area.
  • clamping brackets are guided, which with the gas inlet housing conclusive, i. positive, non-positive or material fit, are connected.
  • the clamping brackets brace the bearing housing and the gas inlet housing in the axial direction against each other.
  • the clamps are released, then rotated a housing part to the desired angle and finally fixed the clamp again.
  • the two housing parts remain concentric with each other, even if the two flanges have high temperature differences and thus radial dislocations.
  • the gas inlet housing is centered on the flanks of the clamping bracket star-shaped in the side walls of the radial grooves of the bearing housing.
  • the clamping bracket in the mounted state a bias, which ensures the necessary axial clamping force for axially fixing the two housing parts.
  • a bias which ensures the necessary axial clamping force for axially fixing the two housing parts.
  • an additional Clamping screw can be used.
  • the clamping bracket can also be used without bias, thus ensuring easier installation.
  • the clamping yokes in the gas inlet housing are guided in the circumferential direction in an annular groove. Due to the circumferential annular groove any tangential positions of the two housing parts to each other are possible.
  • the clamping yokes in the gas inlet housing in the annular groove are positively clamped in the axial direction.
  • the clamping yokes in the gas inlet housing in the annular groove are clamped non-positively in the circumferential direction.
  • the clamping yokes engage behind a free end with a radial projection of the bearing housing.
  • the free end of the tensioning bow comprises a shoulder which is fixed positively in an annular groove of the bearing housing in the radial direction.
  • the free end of the clamping bracket comprises a shoulder which is rotatably mounted in an annular groove of the bearing housing about a tangentially oriented axis of rotation.
  • the clamping brackets for axially clamping the bearing housing and the gas inlet housing comprise two free ends, and between the two free ends at least one spring area.
  • the exhaust gas turbocharger mainly consists of an exhaust gas turbine shown schematically as a radial turbine in Fig. 1 and a compressor, not shown.
  • the exhaust gas turbine mainly comprises a housing and a turbine wheel 3 arranged rotatably therein.
  • the housing comprises a bearing housing 1 and a spiral gas inlet housing 2 arranged radially outside the bearing housing, with a housing wall 22 on the gas outlet side and a housing area designated below as housing flange 21, with which the gas inlet housing rests on the bearing housing.
  • the turbine wheel 3 with the hub 31 and the blades 32 is arranged on a rotatably mounted shaft 7. Compressor side is arranged on the shaft also not shown compressor wheel.
  • the gas inlet housing goes downstream in an inflow channel for the exhaust gases connected to the exhaust gas turbocharger, also not shown on the internal combustion engine.
  • a guide device 4 for flow diversion is arranged between the gas inlet housing 2 and the turbine wheel 3. This comprises guide vanes 42 fastened to wall elements 41, which vanes can be designed to be adjustable in special embodiments of the exhaust gas turbine.
  • the gas inlet housing 2 is clamped in the axial direction with clamping straps 5 with the bearing housing 1.
  • the clamps in each case engage behind radial projections of the two housing parts and clamp them against each other by means of spring force or by means of other clamping means 6.
  • the material used for the tension bow is preferably a highly heat-resistant material (eg Nim80).
  • the turbine wheel with the shaft is first inserted into the bearing housing. Subsequently, the gas inlet housing is pushed in the axial direction on the bearing housing. Depending on the attachment concept for the guide device, a wall part 41 of the guide device can still be clamped between the bearing housing and the gas inlet housing.
  • the guide device also called nozzle ring, previously pushed onto the bearing housing or inserted into the gas inlet housing.
  • the gas inlet housing is pushed on the one hand with a radial support 29 on a radial support 19 of the bearing housing, while on the other hand the gas inlet housing is in contact with an axial support 28 against an axial support 18.
  • the finished on the bearing housing 1 deferred gas inlet housing 2 is then secured according to the invention with clamps 5.
  • the clamps are S-shaped, i. they include two oppositely directed, free ends.
  • the one, the gas inlet housing facing the free end is formed as a hook 51 which engages in a circumferential radial groove 23 of the housing flange 21.
  • the other free end engages behind a radial projection 12 on the bearing housing.
  • the clamping bracket has at least one spring part 53, which exerts a corresponding counterforce on a pulling force acting on the free ends.
  • the clamping bracket 5 is pivoted radially from the outside into the annular groove 23 of the housing flange 21.
  • the tip of the hook 51 engages behind the Ringnutumrandung 24.
  • the clamping bracket is pivoted with the other free end radially inward.
  • the support region 54 slides at the base of the hook 51 along a bearing surface 25 of the annular groove 23 until the hook wedged in the annular groove 23 between the annular groove border 24 and the support surface 25.
  • the other free end is meanwhile pushed over the radial projection 12. This is done against a certain resistance, since the clamp is spread in the spring area and thereby subjected to a voltage.
  • the annular groove edge 24 advantageously has a bearing surface with an inclination of 20-60 degrees to the turbine axis.
  • the tip of the hook 51 may also be provided with a chamfer, so that the hook wedged under axial Wernerg., a chamfer, so that the hook wedged under axial Wernerg., a chamfer, so that the hook wedged under axial Wernerg., a chamfer, so that the hook wedged under axial Wersted support surface 25 and the inclined bearing surface of the Ringnutumrandung. This wedging also provides frictional engagement for securing the tension bow to the gas inlet housing in the circumferential direction.
  • the clamping brackets are concerned not only for the axial attachment of the gas inlet housing 2 on the bearing housing 1, but also for the centering of the gas inlet housing 2 with respect to the bearing housing 1 and the shaft 7 mounted therein with the turbine wheel 3.
  • a plurality of star-shaped radial grooves 13 are arranged in the bearing housing 1.
  • the clamps are arranged in the radial grooves 13 of the bearing housing.
  • the radial grooves have mutually parallel groove walls 14, along which the clamps are guided with their lateral edges 56.
  • the clamping straps are only partially guided in the radial grooves, so that the frictional resistance is limited.
  • This annular groove is advantageously equipped with a circular segment-shaped cross-section, so that this leads to a likewise circular segment-shaped shoulder trained end of the clamping bracket in the annular groove can rotate. So now if the clamping ring is raised at the gas inlet housing end, the clamping ring rotates about an axis of rotation tangentially aligned with respect to the turbine shaft. The rotational movement allows the clamp to move in the radial groove 13.
  • the gas inlet housing 2 is thus centered on the flanks 56 of the clamping bracket star-shaped in the side walls 14 of the radial grooves 13 of the bearing housing 1.
  • the two housings, the bearing housing and the gas inlet housing concentric with each other, even if the two housing high Temperature differences and thus have radial dislocations.
  • the clamping bracket in the assembled state preferably has a bias which ensures the necessary axial clamping force of the two housing parts.
  • clamping means 6 a screw are used, which is used for the axial contraction of the clamping bracket. The screw is inserted into holes 55 provided in the clamp. So that the screw is not present on the bearing housing, a recess 15 is also provided in the region of the radial groove 13, as shown in FIG. 4 can be removed.
  • the clamping bracket can also be used without bias, which simplifies the assembly, since the clamping bracket can be pushed without resistance on the radial projection 12 on the bearing housing.
  • the bearing housing 1 may be provided in the region of the radial groove 13 with recesses 15. This ensures a direct flow of force without restricting the spring portion 53 of the bracket.
  • the clamping bracket need to be solved. Subsequently, the gas inlet housing can be rotated by the desired angle and finally the clamps are fixed again.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)
EP06405223A 2006-05-23 2006-05-23 Assemblage de carters Withdrawn EP1860284A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06405223A EP1860284A1 (fr) 2006-05-23 2006-05-23 Assemblage de carters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06405223A EP1860284A1 (fr) 2006-05-23 2006-05-23 Assemblage de carters

Publications (1)

Publication Number Publication Date
EP1860284A1 true EP1860284A1 (fr) 2007-11-28

Family

ID=37188805

Family Applications (1)

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EP06405223A Withdrawn EP1860284A1 (fr) 2006-05-23 2006-05-23 Assemblage de carters

Country Status (1)

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EP (1) EP1860284A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009123300A3 (fr) * 2008-03-31 2010-09-30 Mitsubishi Heavy Industries, Ltd. Structure à volute pour machine rotative et machine rotative correspondante
WO2013003251A1 (fr) * 2011-06-28 2013-01-03 Williams International Co., L.L.C. Systèmes et procédés d'accouplement de corps d'un conduit de fluide d'une turbomachine
US8418458B2 (en) 2009-01-20 2013-04-16 Williams International Co., L.L.C. Turbocharger core
DE102014012123A1 (de) * 2014-08-14 2016-02-18 Man Diesel & Turbo Se Abgasturbolader
CN105531460A (zh) * 2013-09-25 2016-04-27 三菱重工业株式会社 压缩机及增压器
CN106104006A (zh) * 2014-03-31 2016-11-09 三菱重工业株式会社 离心压缩机、增压器及离心压缩机的制造方法
EP2466078A3 (fr) * 2010-12-16 2017-12-20 Honeywell International Inc. Joint pour l'alignement de boîtiers
JP2018084241A (ja) * 2018-02-13 2018-05-31 三菱重工業株式会社 遠心圧縮機および過給機
CN105531460B (zh) * 2013-09-25 2018-06-01 三菱重工业株式会社 压缩机及增压器
DE102017208107A1 (de) * 2017-05-15 2018-11-15 Man Diesel & Turbo Se Turbolader
GB2570664A (en) * 2018-01-31 2019-08-07 Bowman Power Group Ltd Turbomachinery

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1273234A (en) * 1968-04-16 1972-05-03 Garrett Corp Centrifugal compressors
DE3235538A1 (de) * 1982-09-25 1984-03-29 Audi Nsu Auto Union Ag, 7107 Neckarsulm Abgasturbolader fuer brennkraftmaschinen
EP0118051A2 (fr) * 1983-03-04 1984-09-12 BBC Brown Boveri AG Couplage entre les parties chaudes et froides d'un turbocompresseur non refroidi
DE10028160A1 (de) * 2000-06-07 2001-12-20 Borgwarner Inc Gehäusegruppe für die Turbine eines Abgas-Turboladers
EP1460237A1 (fr) * 2003-03-19 2004-09-22 ABB Turbo Systems AG Carter pour une turbosoufflante

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1273234A (en) * 1968-04-16 1972-05-03 Garrett Corp Centrifugal compressors
DE3235538A1 (de) * 1982-09-25 1984-03-29 Audi Nsu Auto Union Ag, 7107 Neckarsulm Abgasturbolader fuer brennkraftmaschinen
EP0118051A2 (fr) * 1983-03-04 1984-09-12 BBC Brown Boveri AG Couplage entre les parties chaudes et froides d'un turbocompresseur non refroidi
DE10028160A1 (de) * 2000-06-07 2001-12-20 Borgwarner Inc Gehäusegruppe für die Turbine eines Abgas-Turboladers
EP1460237A1 (fr) * 2003-03-19 2004-09-22 ABB Turbo Systems AG Carter pour une turbosoufflante

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009123300A3 (fr) * 2008-03-31 2010-09-30 Mitsubishi Heavy Industries, Ltd. Structure à volute pour machine rotative et machine rotative correspondante
CN101952556A (zh) * 2008-03-31 2011-01-19 三菱重工业株式会社 回转机械涡管结构和回转机械
RU2470161C2 (ru) * 2008-03-31 2012-12-20 Мицубиси Хеви Индастрис, Лтд. Улиточный направляющий аппарат и соответствующая турбина
US8757964B2 (en) 2008-03-31 2014-06-24 Pebble Bed Modular Reactor (Pty) Limited Rotary machine scroll structure and rotary machine
CN101952556B (zh) * 2008-03-31 2015-03-04 三菱重工业株式会社 回转机械
US8418458B2 (en) 2009-01-20 2013-04-16 Williams International Co., L.L.C. Turbocharger core
EP2466078A3 (fr) * 2010-12-16 2017-12-20 Honeywell International Inc. Joint pour l'alignement de boîtiers
WO2013003251A1 (fr) * 2011-06-28 2013-01-03 Williams International Co., L.L.C. Systèmes et procédés d'accouplement de corps d'un conduit de fluide d'une turbomachine
CN105531460A (zh) * 2013-09-25 2016-04-27 三菱重工业株式会社 压缩机及增压器
EP3009633A4 (fr) * 2013-09-25 2016-09-14 Mitsubishi Heavy Ind Ltd Compresseur et compresseur à suralimentation
CN105531460B (zh) * 2013-09-25 2018-06-01 三菱重工业株式会社 压缩机及增压器
CN106104006A (zh) * 2014-03-31 2016-11-09 三菱重工业株式会社 离心压缩机、增压器及离心压缩机的制造方法
EP3128184A4 (fr) * 2014-03-31 2017-08-16 Mitsubishi Heavy Industries, Ltd. Compresseur centrifuge, compresseur de suralimentation et procédé de fabrication de compresseur centrifuge
EP3412916A1 (fr) * 2014-03-31 2018-12-12 Mitsubishi Heavy Industries, Ltd. Compresseur centrifuge, compresseur de suralimentation et procédé de fabrication d'un compresseur centrifuge
CN106104006B (zh) * 2014-03-31 2019-06-18 三菱重工业株式会社 离心压缩机、增压器、离心压缩机的制造方法及消音器
JP2016041927A (ja) * 2014-08-14 2016-03-31 マン・ディーゼル・アンド・ターボ・エスイー 排気ガスターボチャージャー
KR20160021034A (ko) * 2014-08-14 2016-02-24 만 디젤 앤 터보 에스이 배기 가스 터보차저
DE102014012123A1 (de) * 2014-08-14 2016-02-18 Man Diesel & Turbo Se Abgasturbolader
DE102017208107A1 (de) * 2017-05-15 2018-11-15 Man Diesel & Turbo Se Turbolader
GB2570664A (en) * 2018-01-31 2019-08-07 Bowman Power Group Ltd Turbomachinery
JP2018084241A (ja) * 2018-02-13 2018-05-31 三菱重工業株式会社 遠心圧縮機および過給機

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