WO1999028604A1 - Abgaskatalysator, insbesondere für kraftfahrzeuge und verfahren zu seiner herstellung - Google Patents
Abgaskatalysator, insbesondere für kraftfahrzeuge und verfahren zu seiner herstellung Download PDFInfo
- Publication number
- WO1999028604A1 WO1999028604A1 PCT/EP1998/006694 EP9806694W WO9928604A1 WO 1999028604 A1 WO1999028604 A1 WO 1999028604A1 EP 9806694 W EP9806694 W EP 9806694W WO 9928604 A1 WO9928604 A1 WO 9928604A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- section
- monolith
- longitudinal
- pipe section
- catalytic converter
- Prior art date
Links
Classifications
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- 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
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- 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
- F01N13/009—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 having two or more separate purifying devices arranged in series
- F01N13/0097—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 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
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- 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
-
- 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
- F01N2310/00—Selection of sound absorbing or insulating material
- F01N2310/02—Mineral wool, e.g. glass wool, rock wool, asbestos or the like
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- 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
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
- a conventional exhaust gas catalytic converter in particular for motor vehicles, comprises a metallic housing in which a catalytic converter body is mounted.
- a ceramic catalyst body hereinafter referred to as monolith, has far less mechanical stability than a metallic one.
- the coefficients of thermal expansion of the ceramic material and the metallic housing are very different.
- a monolith is therefore stored in the housing with the aid of a storage mat which lies in a gap between the monolith and the housing with radial preload.
- So-called swelling mats are often used as storage mats; these are mineral fiber mats with embedded expanded mica particles. Expanded mica irreversibly releases water vapor at elevated temperatures, causing the particles to expand.
- the mat In the expanded state of the expanded mica particles, the mat exerts higher restoring forces in the radial direction on the inner surface of the housing and the peripheral surface of the monolith, which is associated with an increase in the squeezing force.
- the expression force is to be understood as the force with which the monolith has to be acted upon in the axial direction in order to detach it from its storage or to move it in the axial direction.
- the squeezing force should be as high as possible in order to ensure reliable storage of the monolith during vehicle operation.
- storage mats are also used that do not contain expanded mica.
- Such mats essentially consist only of mineral fibers.
- the radial restoring forces of both types of mat are generated in that the thickness of the mat in the unassembled state is greater than the gap dimension of the gap between the monolith and the housing. While the expansion of the gap at the operating temperatures of the catalyst is compensated for by expansion of the expanded mica particles in expanded mats, the radial preload of the storage mat must be large enough in expanded mica-free mineral fiber mats so that the monolith is safely stored even when the gap is expanded. To the restoring forces of a mat To increase the predetermined thickness, the smallest possible gap dimension for the gap space is therefore generally sought.
- a monolith package consisting of one or more monoliths wrapped in a single layer with a storage mat is first placed in a half-shell and then the second half-shell is put on.
- the storage mat must be compressed to a thickness corresponding to the desired gap size.
- the storage area of the housing that receives the monolith or monoliths consists of a pipe section.
- the monolith package mentioned above is pressed into a pipe section.
- the restoring forces caused by the compression of the storage mat act evenly distributed over the monolith circumference, i.e. quasi isostatic on the monolith. Shear stress practically does not occur. Nevertheless, the gap in order to increase the mat restoring forces cannot be reduced to a satisfactory extent in conventional tubular catalysts. This is because the pressing of a monolith package into a pipe section is all the more difficult to accomplish, the narrower the gap space available or the more the thickness of the storage mat exceeds the gap size of the gap space available.
- Exhaust gas catalytic converter is generally understood to be a device for purifying exhaust gases which, in addition to or instead of a monolith, can also contain a particle or soot filter.
- a pipe section with a plurality of different inner cross-sectional areas is provided, wherein a monolith package is pressed in from a pipe end, which has a larger or the largest inner cross-sectional area or clear width. It can e.g. B.
- a pipe section can be selected which has a first longitudinal section with a larger and an adjoining second longitudinal section with a smaller inner cross-sectional area.
- the larger inner cross-sectional area is selected so that the insertion of the monolith package does not cause any problems, but the restoring compression of the storage mat nevertheless takes place.
- the subsequent longitudinal section with a smaller inner cross-sectional area is selected such that the highest possible compression of the support mat and thus the highest possible restoring forces are generated. If, on the other hand, a pipe section with an overall reduced internal cross-sectional area were used, there would be the danger that the bearing mat would get caught at the end edge area of the pipe section right at the start of the press-in process and only the monolith would be driven further into the pipe section.
- the monolith package can be pressed into the pipe section without changing the desired position of the storage mat relative to the monolith. If the front end of the monolith package pointing in the press-in direction later enters the narrowed longitudinal section of the pipe section, the area of the bearing mat in front of it is already stabilized by the pipe section in such a way that a change in the target position of the storage mat is prevented.
- a pipe section pre-assembled in this way is preferably arranged in such a way that the narrowed longitudinal section encompasses the front region of the monolith facing the inflow funnel (claim 15).
- An exhaust gas catalytic converter according to the invention can also be produced in such a way that a monolith packet is pressed into a pipe section from each pipe end.
- both pipe ends have a larger inner cross-sectional area than at least one area arranged between them with a reduced inner cross-section. cutting surface (claims 2 and 16).
- a pipe section with a step-like changing internal cross-sectional area in the form of several longitudinal sections is used, the inner surface of the respective longitudinal sections running parallel to the central longitudinal axis of the pipe section.
- the inner surface of the respective longitudinal section forms a cylindrical jacket with a circular, oval or polygenic contour, which extends coaxially to the central longitudinal axis of the pipe section.
- the longitudinal sections which follow one another in the pressing-in direction are arranged according to claims 4 and 17 according to decreasing internal cross-sectional areas.
- the mounting mat is increasingly compressed as the pressing depth progresses until, at the end of the pressing-in process, it experiences its highest compression in the region of the pipe end pointing in the pressing-in direction.
- a stepped tube section As an alternative to a stepped tube section, one can also be used in which the inner cross-sectional area of a longitudinal section is continuously reduced or conically narrowed. Such a longitudinal section can extend over the entire length of the pipe section. The inner cross-sectional area then decreases continuously from one pipe end to the other pipe end (claims 6, 7, 19 and 20). The inner surface of a conical longitudinal section thus forms the lateral surface of a truncated cone, the outline of this longitudinal section also being circular, oval or polygon. A stiffening of the pipe section or the catalyst housing is connected to both the step-shaped and the continuous, conical constriction. Compared to the continuous narrowing of the inner cross-sectional area, a step-like tapered pipe section has the advantage of greater friction between the bearing mat and the pipe section.
- a pipe section 2 comprises from its pipe ends towards its center tapered longitudinal sections.
- a monolith packet is expediently pressed into the pipe section from each pipe end.
- Cross-sectionally oval or elliptical monoliths are more pressure-resistant in their flat areas, ie in the area of their smaller ellipse axis, than in the lateral, more curved areas of their longer ellipse axis. It is therefore advantageous if the total pressing force is distributed in such a way that the flat sides of the monoliths are subjected to a greater load than the more curved side regions.
- a pipe section is used which is not narrowed over its entire circumference but is narrowed in its areas assigned to the respective flat sides of the monolith.
- the monolith can therefore be built up overall with an increased radial pressing force without the risk of a monolith breaking.
- the narrowing of the circumferential regions mentioned can be chosen such that a completely uniform gap dimension of the gap space is achieved after a monolith package has been pressed in.
- a variation of the radial pressing force can generally also be achieved in that the narrowing of narrowed or tapered longitudinal sections is more pronounced in one partial peripheral area than in another partial peripheral area. For pipe sections in which the constriction extends only to a partial circumferential area, this means that a section of this partial circumferential area is lowered further in the direction of the central longitudinal axis of the pipe section than another section.
- An exhaust gas catalytic converter according to the invention is particularly advantageous in connection with a swelling mat, since such mats are considerably less expensive than mineral fiber mats that do not contain expanded mica particles.
- a certain operating temperature must be reached so that the expansion of the expanded mica particles is triggered.
- the expansion temperature is often not reached.
- the monolith is due solely to the initial restoring forces of the source mat, determined by the gap size and the original mat thickness, are stored in the catalytic converter housing.
- the mineral fibers and the expanded mica particles are embedded in an organic binder. The initial restoring force of such a mat is largely determined by the organic binder.
- the binder softens and is distributed in the porous structure of the mat. The result is a loss of restoring force or a decrease in the radial pressing forces exerted on the monoliths.
- the binder hardens with prolonged exposure to heat in the temperature range mentioned by patial oxidation. This results in a further significant decrease in the axial pressing forces.
- the vibrations that occur during operation of the vehicle result in a constant compression of the storage mat in the radial direction and, due to the hardened binder, practically cause permanent deformation or compression of the mat. This can lead to the extent that the axial accelerations caused by engine vibrations and exhaust gas pulsations loosen the monolith from its anchoring.
- FIG. 1 shows an exhaust gas catalytic converter according to the invention in a schematic representation, in which a pipe section receiving two monoliths has only a narrowed longitudinal section
- FIG. 2 shows an exhaust gas catalytic converter with a tube section which accommodates two monoliths, in which a narrowed longitudinal section is assigned to each monolith
- FIG. 3 shows an exhaust gas catalytic converter with a pipe section in which an approximately centrally arranged narrowed longitudinal section is flanked by two longitudinal sections with a larger inner cross-sectional area
- FIG. 4 shows an exhaust gas catalytic converter with a pipe section, in which successive longitudinal sections are arranged in the pressing-in direction after the decreasing inner cross-sectional area
- FIG. 6 shows a schematic illustration showing the pressing of a monolith packet into a pipe section
- FIG. 7 is a schematic illustration showing the initial phase when a monolith package is pressed into a pipe section
- FIG. 10 shows a view of the pipe section according to FIG. 9 in the direction of the arrow X
- FIG. 1111 shows an illustration of a pipe section corresponding to FIG. 9 with a narrowed longitudinal section extending over the entire circumference of the pipe section, but with two partial circumferential areas narrowing to a greater extent are than the other two, and
- the bearing area 11 of the housing 4 which accommodates two monoliths 1a, 1b is formed by a tube section 2.
- An inflow funnel 3 is attached to the pipe section 2 on one end face and an outflow funnel 3b is attached to the other end face.
- the housing 4 of the exhaust gas catalytic converter is thus composed of the pipe section 2, the inflow funnel 3 and the outflow funnel 3b.
- the pipe section 2 is circular cylindrical. But it can also be oval or have some other shape.
- an annular gap 6, seen in cross section is arranged between the peripheral surface 15 of the monoliths 1 a, 1 b and the inside 5 of the tube section 2.
- the storage mat is a so-called swelling mat, that is to say a mat which essentially consists of mineral fibers with expanded mica particles embedded therebetween and the organic binder. Basically, however, mats without expanded mica particles can also be used.
- the pipe section is divided into two longitudinal sections 9, 10.
- the longitudinal section 9 has a smaller diameter 12 or a smaller inner cross-sectional area than the longitudinal section 10 adjoining it in the flow direction 13. Accordingly, the longitudinal section 9 has a smaller gap dimension 8a than the longitudinal section 10 when the monolith 1 a is inserted.
- the compression of the storage mat 7 is increased in the longitudinal section 9.
- the radial restoring forces acting on the inside 5 and on the peripheral surface 15 of the monolith 1a are increased accordingly. Due to the increased compression of the bearing mat 7 in the longitudinal section 9, there is no need for an erosion protection of the end edge region 17 of the bearing mat.
- the fibers of the mat are compressed here in such a way that erosion by the incident exhaust gas flow is prevented or at least reduced.
- the inner surface 5a of the pipe section assigned to a longitudinal section 5, 10 runs parallel to its central longitudinal axis 32 or forms a cylinder jacket running coaxially to the central longitudinal axis 32 of the pipe section.
- a storage mat 7 is wound from two monoliths 1 a, 1 b and a single-layer wrapping mat existing monolith package 17 is pressed into a pipe section 2 in the pressing direction 18.
- the pipe section 2 lies in a pipe holder 20 for mounting.
- the longitudinal section 10 with its larger inner cross-sectional area or its larger diameter 12 extends to the pipe end 21 of the pipe section 2 pointing against the pressing-in direction 18.
- the longitudinal section 10 merges with the step or an inclined shoulder 22 into the narrowed longitudinal section 9.
- the longitudinal section 9 extends to the other pipe end 23 of the pipe section 2.
- the difference between the diameter 12 of the narrowed longitudinal section 9 and the diameter 24 of the non-narrowed longitudinal section 10 is only a few tenths of a millimeter. In the representations acc. Fig. 1-Fig. 11 these differences for clarification and also exaggerated for drawing reasons.
- an insertion funnel 25 is placed on the upper end of the tube receptacle 20.
- the insertion slope 26 of the insertion funnel 25 extends essentially to the tube end 21 of the tube section 2.
- the distance 19 between the two monoliths 1a, 1b is ensured by an approximately annular spacer 27, for example made of ice or dry ice.
- the monolith package 17 is inserted into the pipe section 2 by a press ram 28 driven in the pressing-in direction 18.
- the storage mat 7 is compressed less accordingly.
- the frictional resistance between the inside 5a of the longitudinal section 10 and the bearing mat 7 is correspondingly lower.
- the final compression of the bearing mat 7 only takes place when an area of the monolith package corresponding to the length of the section 10 has already been introduced into the pipe section 2.
- the storage mat 7 is then clamped or stabilized in this area in such a way that when the transition into the narrowed gap with its smaller gap dimension 8a, pushing back of the storage mat, as shown on the right in FIG. 7, is practically impossible.
- FIGS. 2-5 and 8-12 the inflow funnel and the outflow funnel have been omitted for reasons of simplification.
- 2 shows a pipe section 2 with two monoliths 1a and 1b. Their front regions 30 pointing against the flow direction 13 are each surrounded by a narrowed longitudinal section 9a, 9b.
- This can be expedient if not only the front monolith 1 a, but also the monolith 1 b arranged behind it in the flow direction 13, is to be stored particularly firmly, for example when a strong exhaust gas flow is also applied to it.
- a narrowed longitudinal section 9c is arranged approximately in the middle of the pipe section 2 and covers the mutually facing end face regions of the monoliths 1a and 1b.
- the narrowed longitudinal section 9c is flanked by two longitudinal sections 10a and 10b, the inner cross-sectional area or diameter 24a of which is larger than the diameter 14 of the longitudinal section 9c.
- the inner surfaces 5a assigned to the named longitudinal sections essentially form a cylinder jacket which runs coaxially to the central longitudinal axis 32 of the pipe section 2.
- three longitudinal sections 10c, 9d and 9e are arranged in the pressing-in direction 18 after decreasing internal cross-sectional areas or diameters 24b, 14a, and 14b.
- the respective longitudinal sections The associated inner surface 5a also essentially forms a coaxial cylinder jacket.
- FIG. 5 shows an exemplary embodiment in which the inner cross-sectional area or the diameter 14c decreases continuously from one pipe end 21 to the other pipe end 23.
- the pipe end 23 pointing in the installed state against the flow direction 13 has the smallest diameter 14c.
- the inner cross-sectional area then increases continuously up to the other tube end 21.
- the inner surface 5 of the pipe section 2 is thus essentially the outer surface of a truncated cone.
- a monolith packet 17 containing two monoliths 1a and 1b is inserted in the pressing-in direction 18, that is to say from the pipe end 21 with the largest diameter.
- a step space or cone-shaped gap space can in principle also be used in exhaust gas catalysts with half-shell or winding housings.
- housing half-shells are used that have at least two longitudinal sections, one longitudinal section being narrowed according to the invention.
- a sheet metal blank with at least two longitudinal sections is used, the one longitudinal section protruding from the plane of the other longitudinal section.
- the raised longitudinal section then forms a narrowed longitudinal section of the housing area receiving a monolith in the finished exhaust gas catalytic converter.
- Fig. 9 shows a pipe section 2 with an oval or ellipsoidal outline shape.
- a narrowed longitudinal section is formed over the entire circumference.
- the narrowing of the inner cross-sectional area is more pronounced than in the laterally more curved peripheral regions of the monolith.
- the monolith is thus surrounded by an overall narrowed gap space 6 in the area of the narrowed longitudinal section. Due to the aforementioned configuration, however, the gap dimension 8b in the area of the flat sides is smaller than the gap dimension 8c in the laterally more curved peripheral region of the monolith 1.
- a pipe section 2 has two longitudinal sections 36a, 36b which narrow conically towards the center thereof. Accordingly, the gap space 6 is continuously reduced from the tube ends 23, 21 towards the center.
- a monolith packet 17 is pressed into each pipe end 21, 23.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59804698T DE59804698D1 (de) | 1997-12-03 | 1998-10-21 | Abgaskatalysator, insbesondere für kraftfahrzeuge und verfahren zu seiner herstellung |
EP98955507A EP1036258B1 (de) | 1997-12-03 | 1998-10-21 | Abgaskatalysator, insbesondere für kraftfahrzeuge und verfahren zu seiner herstellung |
US09/555,801 US6824744B1 (en) | 1997-12-03 | 1998-10-21 | Catalytic converter, especially for motor vehicles, and method for the production thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19753609A DE19753609A1 (de) | 1997-12-03 | 1997-12-03 | Abgaskatalysator, insbesondere für Kraftfahrzeuge und Verfahren zu seiner Herstellung |
DE19753609.3 | 1997-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999028604A1 true WO1999028604A1 (de) | 1999-06-10 |
Family
ID=7850605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/006694 WO1999028604A1 (de) | 1997-12-03 | 1998-10-21 | Abgaskatalysator, insbesondere für kraftfahrzeuge und verfahren zu seiner herstellung |
Country Status (7)
Country | Link |
---|---|
US (1) | US6824744B1 (de) |
EP (1) | EP1036258B1 (de) |
CZ (1) | CZ291752B6 (de) |
DE (2) | DE19753609A1 (de) |
ES (1) | ES2180212T3 (de) |
WO (1) | WO1999028604A1 (de) |
ZA (1) | ZA9811048B (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6484397B1 (en) | 2000-07-11 | 2002-11-26 | Corning Incorporated | Method of assembling a catalytic converter for use in an internal combustion engine |
JP2007167851A (ja) * | 2005-12-23 | 2007-07-05 | Emitec Ges Fuer Emissionstechnologie Mbh | ハニカム体の製造方法、型部分および排気ガス処理装置 |
US7774936B2 (en) | 2004-08-02 | 2010-08-17 | Emcon Technologies Llc | Catalytic converter and associated method of assembly |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE19953997B4 (de) * | 1999-11-10 | 2009-04-09 | Volkswagen Ag | Verfahren zum Herstellen eines Doppeltrichters, insbesondere aus Edelstahl, für ein Katalysatorgehäuse |
JP2001341034A (ja) | 2000-06-01 | 2001-12-11 | Calsonic Kansei Corp | コアの圧入装置とこれを用いたコアの圧入方法 |
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 |
JP2004124719A (ja) * | 2002-09-30 | 2004-04-22 | Nichias Corp | 触媒コンバーター用保持材 |
FR2846037B1 (fr) * | 2002-10-21 | 2006-02-17 | Faurecia Sys Echappement | Procede de montage de catalyseur dans une enveloppe destinee a s'inserer dans une ligne d'echappement pour vehicule automobile |
JP4549058B2 (ja) * | 2003-12-26 | 2010-09-22 | 株式会社三五 | 柱体保持装置の製造方法 |
US20060021337A1 (en) * | 2004-03-08 | 2006-02-02 | Brady William J | Diesel emissions filtering system and method |
US20060228273A1 (en) * | 2005-04-06 | 2006-10-12 | Caterpillar Inc. | Exhaust element retaining assembly |
US8911674B2 (en) * | 2010-09-10 | 2014-12-16 | Toyota Jidosha Kabushiki Kaisha | Electrically heated catalyst |
DE102010045871A1 (de) * | 2010-09-17 | 2012-03-22 | Emitec Gesellschaft Für Emissionstechnologie Mbh | Abgasbehandlungseinheit für eine AGR-Leitung |
US9163549B2 (en) * | 2011-10-07 | 2015-10-20 | Tenneco Automotive Operating Company Inc. | Exhaust treatment device with integral mount |
JP2013204424A (ja) * | 2012-03-27 | 2013-10-07 | Honda Motor Co Ltd | 排気ガス浄化用触媒コンバーター装置及び鞍乗り型車両 |
JP2015017582A (ja) * | 2013-07-12 | 2015-01-29 | カルソニックカンセイ株式会社 | 触媒排気浄化装置 |
CN109563761B (zh) * | 2016-07-21 | 2021-12-28 | 康明斯排放处理公司 | 多边形衬底壳体和组件 |
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DE3638050A1 (de) * | 1986-11-07 | 1988-05-19 | Leistritz Ag | Abgasreinigungsgeraet |
JPH09242533A (ja) * | 1996-03-01 | 1997-09-16 | Calsonic Corp | 触媒コンバータ |
DE19714851C1 (de) * | 1997-04-10 | 1998-10-01 | Zeuna Staerker Kg | Abgasreinigungsvorrichtung |
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DE2331434A1 (de) * | 1973-06-20 | 1975-01-16 | Degussa | Abgasreinigungsvorrichtung |
US4347219A (en) * | 1979-12-29 | 1982-08-31 | Honda Giken Kogyo Kabushiki Kaisha | Catalytic converter for exhaust-gas cleaning use and method of assembling same |
US4413392A (en) * | 1980-08-22 | 1983-11-08 | Honda Giken Kogyo Kabushiki Kaisha | Method of making two-stage catalytic converter |
DE4111264B8 (de) * | 1990-04-20 | 2007-01-18 | Volkswagen Ag | Verfahren zur Herstellung einer Katalysatoranordnung sowie nach dem Verfahren hergestellte Katalysatoranordnung |
EP0560960B1 (de) * | 1991-10-04 | 1995-06-14 | LEISTRITZ AG & CO. Abgastechnik | Vorrichtung zur reduzierung von abgas-schadstoffen, insbesondere für kraftfahrzeuge |
JP3660031B2 (ja) * | 1995-10-16 | 2005-06-15 | 本田技研工業株式会社 | 触媒コンバータ |
-
1997
- 1997-12-03 DE DE19753609A patent/DE19753609A1/de not_active Ceased
-
1998
- 1998-10-21 CZ CZ20001725A patent/CZ291752B6/cs not_active IP Right Cessation
- 1998-10-21 US US09/555,801 patent/US6824744B1/en not_active Expired - Lifetime
- 1998-10-21 WO PCT/EP1998/006694 patent/WO1999028604A1/de active IP Right Grant
- 1998-10-21 DE DE59804698T patent/DE59804698D1/de not_active Expired - Lifetime
- 1998-10-21 ES ES98955507T patent/ES2180212T3/es not_active Expired - Lifetime
- 1998-10-21 EP EP98955507A patent/EP1036258B1/de not_active Expired - Lifetime
- 1998-12-03 ZA ZA9811048A patent/ZA9811048B/xx unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3912459A (en) * | 1972-12-13 | 1975-10-14 | Fram Corp | Catalytic converter |
DE3638050A1 (de) * | 1986-11-07 | 1988-05-19 | Leistritz Ag | Abgasreinigungsgeraet |
JPH09242533A (ja) * | 1996-03-01 | 1997-09-16 | Calsonic Corp | 触媒コンバータ |
DE19714851C1 (de) * | 1997-04-10 | 1998-10-01 | Zeuna Staerker Kg | Abgasreinigungsvorrichtung |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 098, no. 001 30 January 1998 (1998-01-30) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6484397B1 (en) | 2000-07-11 | 2002-11-26 | Corning Incorporated | Method of assembling a catalytic converter for use in an internal combustion engine |
US6568078B2 (en) | 2000-07-11 | 2003-05-27 | Corning Incorporated | Method of assembling a catalytic converter for use in an internal combustion engine |
US7774936B2 (en) | 2004-08-02 | 2010-08-17 | Emcon Technologies Llc | Catalytic converter and associated method of assembly |
JP2007167851A (ja) * | 2005-12-23 | 2007-07-05 | Emitec Ges Fuer Emissionstechnologie Mbh | ハニカム体の製造方法、型部分および排気ガス処理装置 |
Also Published As
Publication number | Publication date |
---|---|
DE19753609A1 (de) | 1999-06-10 |
EP1036258B1 (de) | 2002-07-03 |
DE59804698D1 (de) | 2002-08-08 |
ES2180212T3 (es) | 2003-02-01 |
CZ20001725A3 (cs) | 2001-03-14 |
EP1036258A1 (de) | 2000-09-20 |
CZ291752B6 (cs) | 2003-05-14 |
US6824744B1 (en) | 2004-11-30 |
ZA9811048B (en) | 1999-04-07 |
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