EP1687512B1 - Turbocompresseur comprenant un dispositif de nettoyage - Google Patents

Turbocompresseur comprenant un dispositif de nettoyage Download PDF

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Publication number
EP1687512B1
EP1687512B1 EP04797254.2A EP04797254A EP1687512B1 EP 1687512 B1 EP1687512 B1 EP 1687512B1 EP 04797254 A EP04797254 A EP 04797254A EP 1687512 B1 EP1687512 B1 EP 1687512B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
flow duct
gas inlet
flow
inlet housing
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
Application number
EP04797254.2A
Other languages
German (de)
English (en)
Other versions
EP1687512A1 (fr
Inventor
Detlef Behrendt
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
Publication of EP1687512A1 publication Critical patent/EP1687512A1/fr
Application granted granted Critical
Publication of EP1687512B1 publication Critical patent/EP1687512B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01D25/002—Cleaning of turbomachines
    • 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

Definitions

  • the invention relates to the field of exhaust gas turbochargers.
  • both the internal combustion engine and the turbocharger can be thermally overstressed.
  • damage or even destruction of the valves can occur in the internal combustion engine.
  • a dirt layer is deposited on the nozzle ring and on the turbine blades of a turbocharger connected to a four-stroke internal combustion engine, an increase in the pressures and the rotational speed of the turbocharger can be expected.
  • both components of the internal combustion engine and the turbocharger are thermally and mechanically stressed higher, which can also lead to the destruction of the affected components.
  • the axial turbine has a gas inlet housing with an outer and an inner housing wall, the latter serving to cover the turbine wheel and the shaft opposite the flow channel.
  • the cleaning device consists of several arranged on the gas inlet housing of the axial turbine water injectors with reaching into the flow channel nozzles and a water pipe. At a certain degree of contamination of the axial turbine, a cleaning requirement is determined via a measuring and evaluation unit. Accordingly, water is injected into the flow channel via the nozzles arranged upstream of the guide vanes.
  • the resulting water droplets are transported from the exhaust gas flow to the guide and the blades of the axial turbine and clean them of the adhering contaminants.
  • sufficient cleaning of the fixed guide vanes can only be achieved if they are acted upon as completely as possible on their surface facing the exhaust gas stream with the water droplets.
  • the water injectors or the nozzles must be arranged uniformly distributed over the entire circumference of the axial turbine. Accordingly, a larger number of injectors and nozzles is required, whereby such a solution is relatively complicated and therefore expensive.
  • the effort to seal the gas inlet housing increases with increasing number of nozzles.
  • Another problem is the arrangement of the nozzles in a region of the flow channel in which a relatively high flow velocity prevails. This creates a shallow jet of water which reaches only parts of the vanes. A sufficient cleaning is therefore not guaranteed.
  • a cleaning device for the nozzle ring and the blades of the axial turbine of a turbocharger which achieves an improved cleaning effect with a reduced construction cost, is in DE 196 51 318 described. It consists of only one nozzle with at least one injection opening and a detergent feed line.
  • the injection opening is arranged on any point of an imaginary circular area, which in turn by a distance upstream of the inner housing wall arranged center and is defined by a diameter.
  • the center lies on an imaginary parallel surface formed at a distance from the inner housing wall. The distance corresponds to the percentage diameter of the center diameter of the nozzle ring.
  • the center point is located at an intersection of the parallel surface and the perpendicularly intersecting streamline.
  • the diameter of the circular area is also dependent on the average diameter of the nozzle ring, which is multiplied by a percentage.
  • the injection opening of the nozzle is aligned at least approximately parallel to the tangential plane.
  • the invention is therefore an object of the invention to provide a cleaning device for the nozzle ring and the blades of the axial turbine of a turbocharger of the type mentioned, which achieves an improved cleaning effect with low construction costs.
  • the rod-shaped nozzle projects into the flow channel.
  • the cleaning agent is injected with the flow toward the nozzle ring and turbine blades.
  • the tubular nozzle can be easily inserted through an opening in the gas inlet housing in the flow channel. There are no complicated leads and holes in the housing necessary.
  • the nozzle is guided through existing openings, for example a wastegate opening in the gas inlet housing wall into the flow channel.
  • openings are often provided on both sides, since at the time of manufacture of the housing is not known whether and on which side such a waste gate will be connected. In this way, the cleaning device can be realized very easily, even in existing systems without such cleaning.
  • FIG. 1 shows a section through a radial gas inlet housing of an axial turbine of a turbocharger.
  • the arrows indicate the flow direction of the exhaust gases.
  • the hot exhaust gases come from below into the flow channel 2 and are guided past an inner housing wall on the nozzle ring, not shown, and then on the blades of the turbine.
  • the inner housing wall 12 covers the turbine wheel.
  • the inventive cleaning device is arranged upstream of the annular division of the flow, so that with a single nozzle 3 with a plurality of injection openings 32, the cleaning liquid can be distributed in the entire flow.
  • the nozzle protrudes into the flow channel substantially at right angles to the flow direction of the exhaust gas.
  • the nozzle is tubular, wherein the tube is advantageously closed at the end, for having one or more of said injection openings.
  • FIGS. 2 and 3 show different embodiments of such nozzles with round or slot-shaped injection openings 32 and 33. Further opening shapes, such as square or rectangular, are conceivable.
  • a plurality of injection openings are provided, these are advantageously arranged such that an overlap with the adjacent injection openings is ensured, and thus a further improved water distribution at the nozzle ring and the blades is achieved.
  • This is inventively achieved in slot-shaped openings so that the slots are aligned at right angles to each other.
  • the supply area 31 of the tubular nozzle is fastened to the gas inlet housing, for example, by means of a fastening disk 4.
  • the mounting plate is fastened by means of screws or other fastening means, for example through the mounting holes on the housing wall.
  • the nozzle is guided into the flow channel by openings already provided in the housing, for example the waste gate used for discharging exhaust gas from the flow channel.
  • the waste gate is often provided, it is not or only used on one side, so that at least one corresponding connection flange can be used for inserting the cleaning nozzle.
  • the cleaning device can be installed without additional drilling, and be retrofitted to existing turbines.
  • FIGS. 4 and 5 show external views of the gas inlet housing with the inventive cleaning device, in which the nozzles are guided through the Wast gate.
  • Fig. 4 shows an arrangement in which the detergent feed line is attached via the mounting plate to the wastegate flange. This arrangement has respect to the arrangement according to Fig.

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

Claims (5)

  1. Turbine axiale d'un turbocompresseur, comprenant un carter d'entrée de gaz (1), une roue de turbine avec des aubes mobiles, un canal d'écoulement (2) réalisé dans le carter d'entrée de gaz (1) pour les gaz d'échappement d'un moteur à combustion interne connecté au turbocompresseur, un anneau de tuyère disposé en amont des pales mobiles dans le canal d'écoulement (2) ainsi qu'un dispositif de nettoyage (3) disposé plus en amont, débouchant dans le canal d'écoulement (2),
    le canal d'écoulement étant divisé sous forme annulaire en amont de l'anneau de tuyère et le dispositif de nettoyage (3) se composant d'une tuyère (31) avec au moins une ouverture d'injection (32, 33) ainsi que d'une conduite d'amenée de fluide de nettoyage (34), et
    la tuyère (3) étant réalisée sous forme de barre et pénétrant à travers une ouverture dans le carter d'entrée de gaz (1) en amont de la division du canal d'écoulement dans le canal d'écoulement (2), caractérisée en ce que
    l'au moins une tuyère (3) présente plusieurs ouvertures d'injections en forme de fentes (32, 33) qui sont orientées dans la direction d'écoulement de telle sorte que le fluide de nettoyage puisse être injecté dans la direction d'écoulement dans le canal d'écoulement (2) et en ce que les ouvertures d'injection sont disposées au moins en partie à angle droit les unes par rapport aux autres.
  2. Turbine axiale selon la revendication 1, caractérisée en ce que la tuyère (3) est disposée dans le canal d'écoulement (2) à angle droit par rapport aux lignes d'écoulement (21).
  3. Turbine axiale selon la revendication 1, caractérisée en ce que la tuyère (3) comprend plusieurs ouvertures d'injection (32, 33) et en ce que les ouvertures d'injection (32, 33) sont orientées de telle sorte que le fluide de nettoyage puisse être injecté à la fois dans la direction d'écoulement et suivant un angle aigu par rapport à la direction d'écoulement dans le canal d'écoulement (2).
  4. Turbine axiale selon l'une quelconque des revendications 1 ou 3, caractérisée en ce qu'un disque de fixation (4) est monté sur la barre de tuyère (3) et en ce que la barre de tuyère (3) est fixée au carter d'entrée de gaz (1) par le biais du disque de fixation (4).
  5. Turbine axiale selon l'une quelconque des revendications précédentes, caractérisée en ce qu'au niveau du carter d'entrée de gaz (1) est prévue au moins une ouverture pour évacuer le gaz d'échappement et en ce que la tuyère (3) est guidée à travers cette ouverture d'évacuation de gaz dans le canal d'écoulement (2).
EP04797254.2A 2003-11-24 2004-11-19 Turbocompresseur comprenant un dispositif de nettoyage Expired - Fee Related EP1687512B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003155105 DE10355105A1 (de) 2003-11-24 2003-11-24 Reinigungsvorrichtung
PCT/CH2004/000697 WO2005049972A1 (fr) 2003-11-24 2004-11-19 Dispositif de nettoyage

Publications (2)

Publication Number Publication Date
EP1687512A1 EP1687512A1 (fr) 2006-08-09
EP1687512B1 true EP1687512B1 (fr) 2016-09-28

Family

ID=34530307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04797254.2A Expired - Fee Related EP1687512B1 (fr) 2003-11-24 2004-11-19 Turbocompresseur comprenant un dispositif de nettoyage

Country Status (4)

Country Link
EP (1) EP1687512B1 (fr)
JP (1) JP2007533899A (fr)
DE (1) DE10355105A1 (fr)
WO (1) WO2005049972A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005028296B4 (de) * 2005-06-18 2007-03-29 Man Diesel Se Abgasturbolader für eine Brennkraftmaschine
JP4650233B2 (ja) * 2005-11-24 2011-03-16 株式会社Ｉｈｉ 過給機
GB2459314B (en) * 2008-04-17 2012-12-12 Cummins Turbo Tech Ltd Turbocharger cleaning
US8602721B2 (en) 2009-12-02 2013-12-10 Wartsila Finland Oy Method of operating turbocharged piston engine
DE102011082089A1 (de) 2011-09-02 2013-03-07 Abb Turbo Systems Ag Reinigungsvorrichtung einer Abgasturbine
KR102120499B1 (ko) * 2013-03-19 2020-06-09 에이비비 터보 시스템즈 아게 배기가스 터빈의 세척 장치
DE102017218425A1 (de) * 2017-10-16 2019-04-18 Lufthansa Technik Ag Vorrichtung zum Reinigen von Turbinenschaufeln eines Strahltriebwerks

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1565778A (en) * 1925-12-15 Carbon-removing attachment for internal-combustion engines
CH350065A (de) * 1956-06-16 1960-11-15 Kloeckner Humboldt Deutz Ag Verfahren zum Sauberhalten von Kreiselverdichtern
DE2008503A1 (de) * 1969-07-28 1971-02-11 VEB Bergmann Borsig/Gorlitzer Ma schinenbau, Werk Berlin, Berlin Einrichtung zum Waschen der Schaufeln von Gasturbinen
SE387720B (sv) * 1974-12-30 1976-09-13 Stal Laval Turbin Ab Tvettapparat for tvastegskompressor
CH615987A5 (en) * 1976-07-23 1980-02-29 Sulzer Ag Injection valve for a turbocharger-washing device
DE2641425A1 (de) * 1976-09-15 1978-03-16 Kloeckner Humboldt Deutz Ag Vorrichtung zum reinigen einer turbine
DE3220081C1 (de) * 1982-05-28 1987-07-09 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Vorrichtung zur Reinigung von Turbinen, insbesondere von Abgasturboladern an Brennkraftmaschinen
US4548040A (en) * 1984-05-11 1985-10-22 Elliott Turbomachinery Company, Inc. Method and apparatus for determining when to initiate cleaning of turbocharger turbine blades
DE3526343A1 (de) * 1985-07-23 1987-02-05 Proizv Ob Turbomotornyj Z Im K Axialgasturbine
JP3547522B2 (ja) * 1995-05-17 2004-07-28 新潟原動機株式会社 排気タービン過給機の洗浄装置
DE19549142A1 (de) * 1995-12-29 1997-07-03 Asea Brown Boveri Verfahren und Vorrichtung zur Nassreinigung des Düsenrings einer Abgasturbolader-Turbine
DE19651318A1 (de) * 1996-12-11 1998-06-18 Asea Brown Boveri Axialturbine eines Turboladers

Also Published As

Publication number Publication date
DE10355105A1 (de) 2005-06-02
WO2005049972A1 (fr) 2005-06-02
EP1687512A1 (fr) 2006-08-09
JP2007533899A (ja) 2007-11-22

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