EP0818615A2 - Boítier de catalyseur - Google Patents

Boítier de catalyseur Download PDF

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Publication number
EP0818615A2
EP0818615A2 EP97111254A EP97111254A EP0818615A2 EP 0818615 A2 EP0818615 A2 EP 0818615A2 EP 97111254 A EP97111254 A EP 97111254A EP 97111254 A EP97111254 A EP 97111254A EP 0818615 A2 EP0818615 A2 EP 0818615A2
Authority
EP
European Patent Office
Prior art keywords
funnel
catalyst
housing according
large diameter
central part
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.)
Granted
Application number
EP97111254A
Other languages
German (de)
English (en)
Other versions
EP0818615B1 (fr
EP0818615A3 (fr
Inventor
Helmut Bauer
Werner Harsch
Olaf Herden
Robert Siebert
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
Publication of EP0818615A2 publication Critical patent/EP0818615A2/fr
Publication of EP0818615A3 publication Critical patent/EP0818615A3/fr
Application granted granted Critical
Publication of EP0818615B1 publication Critical patent/EP0818615B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
    • F01N13/1894—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells the parts being assembled in longitudinal direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • F01N3/2857—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing the mats or gaskets being at least partially made of intumescent material, e.g. unexpanded vermiculite
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/02—Fitting monolithic blocks into the housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
    • 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
    • Y10T29/49345—Catalytic device making

Definitions

  • the invention relates to a catalyst housing according to the preamble of claim 1.
  • Catalytic converter housing as used to connect a catalytic converter in exhaust systems from Internal combustion engines, in particular motor vehicles, are used, are available in a variety of designs, with two systems prevailing on the market to have.
  • the first system one with a catalytically active material coated monolith (ceramic or metallic design) with an inflatable mat wrapped, which has the task of storing the monolith.
  • this inflatable mat again put a sheet metal jacket, which is wound with a fixed force and this keeps the monolith in place.
  • This tense sheet metal jacket is to the End faces stapled, which ensures a tight fit of the monolith.
  • Face Inlet and outlet funnels are installed that meet the requirements (Connection of the exhaust pipe) are aligned.
  • the inflatable mat becomes an organic liquid submerged to make it easier to assemble.
  • This organic liquid evaporates then, so that the inflatable mat becomes very porous.
  • the thermal stress on the converter the converter shells in contrast to that Monoliths very different, so that for a safe function of the Shell converter a production with very tight tolerances is necessary.
  • Such catalyst housing arrangements are known for example from DE 42 23 648 C, DE 38 21 397 C, DE 38 11 224 C and DE 37 29 994 A.
  • the funnel that has the task of Differences in diameter between the inlet or outlet tube and the catalyst body to compensate should on the one hand ensure a controlled exhaust gas flow and on the other hand Protect the inflatable mat from being washed out by the pulsating exhaust gas flow.
  • the funnel collar is usually placed in a 90 ° angle to the funnel axis, as is the case for example from DE 34 30 398 A, Figure 5 is known.
  • Such funnels are usually made from sheet metal by deep drawing, however, there are two disadvantages. On the one hand you need sheet metal boards with a high thickness in order to make a still weldable small diameter for the Obtain connection of the exhaust pipe.
  • the second disadvantage is the 90 ° funnel adjustment to the funnel collar, which is welded to the catalytic converter housing. It can happen that depending on the location of the monolith in its Tolerance field and possible decentralized fastening of the funnel collar to the An effective monolith surface of up to 15% is covered.
  • a Improvement here shows the funnel connection according to FIG. 1 of DE 34 30 398 A, in which there is only a slight overlap of the effective monolith face. This However, connection requires high precision in the manufacture of the housing parts and the Funnel, since otherwise it is not possible to insert the funnel into the housing with a precise fit.
  • the object of the present invention is to provide a catalyst housing with a low weight and on the other hand to produce with a favorable exhaust gas flow.
  • the invention therefore uses the basic concept of the introduction described first Catalytic converter housing, in which the housing jacket is not formed in one piece with the funnel is.
  • the inlet and / or outlet funnel of the catalyst housing a so-called tube funnel is used instead of a deep-drawn funnel. That is, the The blank geometry of the funnel is a tube. The pipe is placed in a follow-on tool required large diameter expanded and the required small diameter moved in. The tube is preferably pulled in by pressing (Pulling) the tube funnel into a die.
  • the tube funnel is manufactured in two stages, whereby the widening of one end takes place on the retraction or vice versa. Because of this It is possible to process the blank (semi-finished product) with the thickness just required provided, which is necessary for the expansion.
  • the funnel has on its large diameter a material thickness that is at most 90% of the material thickness on its small diameter. Especially the material thickness at the large diameter is at most 80%. That is advantageous Material thickness on the large diameter, however, at least 40% and in particular at least 60% of the material thickness on the small diameter, otherwise the funnel will close again becomes difficult and on the other hand the weldability either on the large diameter or on the Small diameter becomes problematic.
  • this thickness distribution on the funnel it is possible, weight optimized on the one hand and easy to weld on the other To design both ends, so that on the one hand the separate catalyst jacket without problems on the large diameter of the funnel and the separate exhaust pipe on the Small diameter of the funnel can be welded.
  • the hoppers of the prior art have an opposite Weight distribution, d. H. the large diameter has a thicker wall thickness than that Small diameter, which makes these funnels much heavier.
  • connection slope is off manufacturing reasons preferably directed inwards.
  • The is manufactured Connection slope advantageous due to rolling.
  • connection slope is advantageously kept as short as possible, i. H. so, that within the allowable manufacturing tolerances for the middle section and the funnel seamless connection of the two parts is possible.
  • connection slope is advantageous at an angle of 10 ° to 70 ° and in particular from 20 ° to 50 ° to the longitudinal axis, since under this geometry, larger manufacturing tolerances with short connection bevels possible are.
  • connection bevel The part that crosses the connection bevel can also be provided with a connection bevel be formed, which is then directed opposite (to the outside).
  • connection slope advantageously has an angle to the longitudinal axis ⁇ the angle of the internal bevel.
  • ceramic or metallic are preferably used as the catalyst core
  • Monoliths are used, with one or more monoliths in the middle part of the Catalyst housing can be accommodated.
  • the tubular middle part in which the catalyst core is located is very particularly preferred located, wound, d. H. is - as described at the beginning - from a sheet metal strip manufactured, which the catalyst core (with a the catalyst core against the middle part supporting intermediate layer, especially mat) wrapped.
  • the funnel described above is preferably inlet and arranged on the outlet side of the middle part.
  • FIG. 1 shows the winding converter 20 which is common today and which is constructed from a middle part 21 and an inlet funnel 22 and an outlet funnel 23
  • Sheet metal jacket 21 encloses a catalytically coated monolith 24 below Intermediate layer of an inflatable mat 25.
  • the catalytically coated monolith 24 wrapped with the inflatable mat 25 which has the task of storing the monolith 24.
  • On the Inflatable mat 25 is then placed on the sheet metal jacket 21 and with a predetermined force wrapped (pulled) over the inflatable mat. This will tension the unit.
  • the tense Sheet metal jacket 21 is then stapled on its end faces, whereby a tight fit of the Monolith 24 is guaranteed.
  • sheet metal blanks are deep-drawn Funnels 22, 23 attached to the end faces of the sheet metal jacket 21 and welded 26.
  • Zum Compensation of tolerances have the funnels 22, 23 funnel bundles 27, 28 which in one 90 ° to the longitudinal axis.
  • the funnel bundles result from Deep drawing the funnels 20 to 23 from the corresponding sheet metal plates by clamping the edge of the board.
  • the funnel edge 27 or 28 accordingly has the greatest material thickness of the funnel 22 or 23, since there is almost no pulling of the material here.
  • This thickness exceeds the thickness of the Small diameter 29 or 30, since the starting thickness of the sheet metal plate can be chosen in this way must that the small diameter after deep drawing a still weldable thickness for the Have joining and welding with the inlet or outlet pipe (not shown).
  • the wall thickness during deep drawing the large diameter is equal to the blank wall thickness (the sheet metal plate).
  • the wall thickness is far below due to the deformation the blank wall thickness. But since there is also a welded joint on no diameter a minimum wall thickness is required here.
  • This certain minimal Wall thickness can only be influenced by changes in the blank dimensions, so that the raw part wall thickness and thus the part weight for production must be increased, although it is not necessary for the connection to the middle section.
  • funnel setting 27 or 28 which means that it depends radial position of the monolith 24 in its tolerance field a concealment 31 of up to 15% the cross-sectional area F of the monolith 24 can come.
  • the pipe funnels 2 and 3 avoid the connection problems to the sheet metal jacket 1 with a new connection geometry.
  • the sheet metal jacket 1 is on its ends 11 and 12 at an angle of approx. 30 ° to the horizontal (longitudinal axis) inclined so that there are connection bevels.
  • On these connecting slopes 11 or 12 are diameter tolerances of the wound sheet metal jacket 1 compared to Large diameters 7 and 8 of the tube funnels 2 and 3 compensated. This allows the Large diameter 7 or 8 axially parallel to the connection bevels 11 or 12 be welded on.
  • the connecting slopes 11 and 12 cover the Inflatable mat 5, so that they are not washed out by the pulsating exhaust gas flow can.
  • the channels 13 of the catalyst core are not covered 4, so that its effective cross section can be fully used.
  • funnels 2 and 3 can be performed asymmetrically.
  • the tubular blank preferably first drawn into a die at one end and then, to produce the large diameter, asymmetrical to the longitudinal axis of the Small diameter widened.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
EP97111254A 1996-07-10 1997-07-04 Boîtier de catalyseur Expired - Lifetime EP0818615B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19627705 1996-07-10
DE19627705 1996-07-10

Publications (3)

Publication Number Publication Date
EP0818615A2 true EP0818615A2 (fr) 1998-01-14
EP0818615A3 EP0818615A3 (fr) 1998-04-15
EP0818615B1 EP0818615B1 (fr) 2011-09-28

Family

ID=7799384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97111254A Expired - Lifetime EP0818615B1 (fr) 1996-07-10 1997-07-04 Boîtier de catalyseur

Country Status (2)

Country Link
US (1) US6185819B1 (fr)
EP (1) EP0818615B1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000012878A1 (fr) * 1998-08-26 2000-03-09 Volkswagen Aktiengesellschaft Procede permettant de fabriquer le boitier d'un convertisseur catalytique par une technique d'enroulement-etirement
US6185819B1 (en) 1996-07-10 2001-02-13 Volkswagen Ag Catalytic converter housing arrangement
LU90603B1 (en) * 2000-06-16 2001-12-17 Delphi Tech Inc Method for assembling a catalytic converter catalytic converter obtained according to the method and use of the catalytic converter in diesel engine exhaust lines
EP1241331A2 (fr) 2001-03-17 2002-09-18 Volkswagen Aktiengesellschaft Cône d'entrée et de sortie d'un boítier de catalyseur
WO2003008773A1 (fr) 2001-06-29 2003-01-30 Thyssenkrupp Stahl Ag Element central en forme d'enveloppe d'un boitier catalytique
CN102654073A (zh) * 2011-03-03 2012-09-05 株式会社丰技研 排热回收装置
CN111889963A (zh) * 2020-06-28 2020-11-06 中船澄西船舶修造有限公司 一种用于船舶闭式脱硫装置的烟囱制作方法

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6324758B1 (en) * 2000-01-13 2001-12-04 Visteon Global Tech., Inc. Method for making a catalytic converter canister
DE60103825T2 (de) * 2000-09-18 2005-08-11 Toyota Jidosha K.K., Toyota Verfahren zur Herstellung eines Abgasreinigungskatalysators
US7323145B2 (en) * 2002-03-26 2008-01-29 Evolution Industries, Inc. Automotive exhaust component and method of manufacture
US7169365B2 (en) * 2002-03-26 2007-01-30 Evolution Industries, Inc. Automotive exhaust component and method of manufacture
US7587819B1 (en) * 2002-12-23 2009-09-15 Hall Jr Herbert L Insert for a catalytic converter and method and apparatus for forming an insert for a catalytic converter
US7685714B2 (en) 2003-03-18 2010-03-30 Tursky John M Automotive exhaust component and process of manufacture
US20050155820A1 (en) * 2004-01-16 2005-07-21 Flugger Ray T. One-piece end cap for a muffler and method of forming same
JP4531576B2 (ja) * 2005-01-27 2010-08-25 中川産業株式会社 車両の排気管
DE102005022512A1 (de) * 2005-05-11 2006-11-16 J. Eberspächer GmbH & Co. KG Herstellungsverfahren für eine Abgasbehandlungsvorrichtung
MX2010005173A (es) * 2007-11-09 2010-09-14 Gws Tube Forming Solutions Inc Método y aparato para formar un alojamiento de dispositivo de anticontaminación.
EP2459331B1 (fr) 2009-07-30 2017-03-22 Gws Tube Forming Solutions Inc. Appareil et procédé de formation d un boîtier de dispositif antipollution
US10526043B2 (en) * 2016-06-24 2020-01-07 V&H Performance, Llc Motorcycle exhaust with catalytic converter

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3430399A1 (de) 1984-08-17 1986-02-20 Voest-Alpine St. Aegyd AG, St. Aegyd am Neuwalde Katalytische abgasreinigungseinrichtung
DE3430398A1 (de) 1984-08-17 1986-02-20 Voest-Alpine St. Aegyd AG, St. Aegyd am Neuwalde Katalytische abgasreinigungseinrichtung sowie verfahren zu ihrer herstellung
DE3729994A1 (de) 1987-09-08 1989-03-16 Bischoff Erhardt Gmbh Co Kg Vorrichtung zum katalytischen reinigen von abgasen
DE3811224C2 (fr) 1988-04-02 1991-08-08 Leistritz Ag, 8500 Nuernberg, De
DE3821397C2 (de) 1988-06-24 1993-10-14 Eberspaecher J Vorrichtung zur katalytischen Reinigung von Verbrennungsmotor-Abgasen
DE4223648C2 (de) 1992-07-17 1996-02-01 Zeuna Staerker Kg Katalytische Abgasreinigungsvorrichtung

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JPS587806B2 (ja) * 1972-10-03 1983-02-12 フオルクスウア−ゲンウエルク アクチエンゲゼルシヤフト ハイシユツガス ノ シヨクバイジヨウカヨウシヨクバイソウチ
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US5118476A (en) * 1986-06-12 1992-06-02 Tennessee Gas Pipeline Company Catalytic converter and substrate support
US4969264A (en) 1986-06-12 1990-11-13 Tennessee Gas Pipeline Company Catalytic converter and substrate support
EP0263893A1 (fr) * 1986-10-16 1988-04-20 W.R. Grace & Co. Boîtier pour des éléments catalyseurs et convertisseur catalytique
US5190732A (en) * 1988-10-11 1993-03-02 Emitec Gesellschaft Fur Emissionstechnologie Mbh Catalyst with a double casing system
DE8812762U1 (de) * 1988-10-11 1989-06-29 Emitec Gesellschaft für Emissionstechnologie mbH, 5204 Lohmar Katalysator mit Doppelmantelsystem
CA2028217A1 (fr) * 1989-10-23 1991-04-24 Timothy Z. Thayer Dispositif de traitement a extremites dimensionnees pour systeme d'evacuation
US5229080A (en) * 1990-06-29 1993-07-20 Ngk Insulators, Ltd. Resistance adjusting type heater and catalytic converter
US5174969A (en) * 1991-04-05 1992-12-29 Minnesota Mining And Manufacturing Company Roll-pack diesel particulate filter
DE4302039A1 (de) * 1993-01-26 1994-07-28 Emitec Emissionstechnologie Katalytischer Konverter mit elektrischer Beheizung
DE59500935D1 (de) * 1994-05-02 1997-12-11 Leistritz Abgastech Verfahren und Vorrichtung zur Montage eines Abgaskatalysators
JP3585064B2 (ja) * 1995-10-12 2004-11-04 トヨタ自動車株式会社 モノリス触媒コンバータ及びその製造方法
EP0818615B1 (fr) 1996-07-10 2011-09-28 Volkswagen Aktiengesellschaft Boîtier de catalyseur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3430399A1 (de) 1984-08-17 1986-02-20 Voest-Alpine St. Aegyd AG, St. Aegyd am Neuwalde Katalytische abgasreinigungseinrichtung
DE3430398A1 (de) 1984-08-17 1986-02-20 Voest-Alpine St. Aegyd AG, St. Aegyd am Neuwalde Katalytische abgasreinigungseinrichtung sowie verfahren zu ihrer herstellung
DE3729994A1 (de) 1987-09-08 1989-03-16 Bischoff Erhardt Gmbh Co Kg Vorrichtung zum katalytischen reinigen von abgasen
DE3811224C2 (fr) 1988-04-02 1991-08-08 Leistritz Ag, 8500 Nuernberg, De
DE3821397C2 (de) 1988-06-24 1993-10-14 Eberspaecher J Vorrichtung zur katalytischen Reinigung von Verbrennungsmotor-Abgasen
DE4223648C2 (de) 1992-07-17 1996-02-01 Zeuna Staerker Kg Katalytische Abgasreinigungsvorrichtung

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6185819B1 (en) 1996-07-10 2001-02-13 Volkswagen Ag Catalytic converter housing arrangement
WO2000012878A1 (fr) * 1998-08-26 2000-03-09 Volkswagen Aktiengesellschaft Procede permettant de fabriquer le boitier d'un convertisseur catalytique par une technique d'enroulement-etirement
CN1127613C (zh) * 1998-08-26 2003-11-12 大众汽车有限公司 一种催化裂化器外壳的制造方法
US6902710B2 (en) 1998-08-26 2005-06-07 Volkswagen Ag Method for the production of a catalytic converter housing using a winding-tensioning technique
LU90603B1 (en) * 2000-06-16 2001-12-17 Delphi Tech Inc Method for assembling a catalytic converter catalytic converter obtained according to the method and use of the catalytic converter in diesel engine exhaust lines
EP1164267A1 (fr) * 2000-06-16 2001-12-19 Delphi Technologies, Inc. Procédé d'assemblage d'un convertisseur catalytique
EP1241331A2 (fr) 2001-03-17 2002-09-18 Volkswagen Aktiengesellschaft Cône d'entrée et de sortie d'un boítier de catalyseur
WO2003008773A1 (fr) 2001-06-29 2003-01-30 Thyssenkrupp Stahl Ag Element central en forme d'enveloppe d'un boitier catalytique
DE10131466B4 (de) * 2001-06-29 2006-09-21 Thyssenkrupp Steel Ag Mantelförmiges Mittelteil eines Katalysatorgehäuses
CN102654073A (zh) * 2011-03-03 2012-09-05 株式会社丰技研 排热回收装置
CN111889963A (zh) * 2020-06-28 2020-11-06 中船澄西船舶修造有限公司 一种用于船舶闭式脱硫装置的烟囱制作方法
CN111889963B (zh) * 2020-06-28 2021-06-18 中船澄西船舶修造有限公司 一种用于船舶闭式脱硫装置的烟囱制作方法

Also Published As

Publication number Publication date
US6185819B1 (en) 2001-02-13
EP0818615B1 (fr) 2011-09-28
EP0818615A3 (fr) 1998-04-15

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