DE2247947A1 - DEVICE FOR PURIFYING EXHAUST GAS FROM COMBUSTION ENGINE - Google Patents

DEVICE FOR PURIFYING EXHAUST GAS FROM COMBUSTION ENGINE

Info

Publication number
DE2247947A1
DE2247947A1 DE19722247947 DE2247947A DE2247947A1 DE 2247947 A1 DE2247947 A1 DE 2247947A1 DE 19722247947 DE19722247947 DE 19722247947 DE 2247947 A DE2247947 A DE 2247947A DE 2247947 A1 DE2247947 A1 DE 2247947A1
Authority
DE
Germany
Prior art keywords
catalyst
silencer
shut
cylindrical
muffler
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.)
Pending
Application number
DE19722247947
Other languages
German (de)
Inventor
Rainer Leucht
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to DE19722247947 priority Critical patent/DE2247947A1/en
Priority to GB4315373A priority patent/GB1400984A/en
Priority to FR7334805A priority patent/FR2205100A5/fr
Publication of DE2247947A1 publication Critical patent/DE2247947A1/en
Pending legal-status Critical Current

Links

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
    • 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
    • F01N3/18—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 methods of operation; Control
    • F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2053—By-passing catalytic reactors, e.g. to prevent overheating
    • 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
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • F01N3/2885—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices with exhaust silencers in a single 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • 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
    • F01N2230/00—Combination of silencers and other devices
    • F01N2230/04—Catalytic converters
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/15—Plurality of resonance or dead chambers
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/15—Plurality of resonance or dead chambers
    • F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction

Description

Daimler-Benz AktiengesellschaftDaimler-Benz Aktiengesellschaft

Stuttgart-Untertürkheini 2247947Stuttgart-Untertürkheini 2247947

Daim 9520/4Daim 9520/4

27· September 197227 September 1972

Vorrichtung: zur .Reinigung von Abgasen von VerbrennungskraftmaschinenDevice: for .cleaning of exhaust gases of internal combustion engines

Die Erfindung betrifft eine- Vorrichtung zur Reinigung von Abgasen von Verbrennungskraftmaschinen durch Nachverbrennung in einem im Auspuff angeordneten Katalysatorsystein, dessen Durchströmung durch Absperrelemente steuerbar ist.The invention relates to a device for cleaning Exhaust gases from internal combustion engines through post-combustion in a catalyst system arranged in the exhaust pipe, the flow of which can be controlled by shut-off elements.

Zweck der Erfindung ist es, durch Anordnung von Katalysatoren im Auspuff die Abgase zu reinigen, insbesondere durch Nachverbrennung ihren CO- und CH-Gehalt zu reduzieren.The purpose of the invention is to clean the exhaust gases by arranging catalysts in the exhaust, in particular by Afterburning to reduce their CO and CH content.

Bisher war es bekannt, besondere Bypass-Leitungen mit Katalysatoren vorzusehen, durch die in der Anfangslaufphase der Brennkraftmaschine das Abgas geleitet wurde. Im höheren Drehzahlbereich wurde dann das Abgas wieder durch die übliche Abgasleitung abgeführt und damit der Katalysator abgeschaltet, so daß er sich im abgeschalteten Zustand abkühlte und bei einer späteren Einschaltung eine gewisse Zeit benötigte, um wieder auf höhere Temperaturen zu kommen und damit voll funktionsfähig zu sein.It was previously known to provide special bypass lines with catalytic converters through which in the initial running phase the internal combustion engine, the exhaust gas was passed. In the higher speed range, the exhaust gas was then through again the usual exhaust pipe is discharged and thus the catalytic converter is switched off so that it is in the switched-off state cooled down and, when switched on later, required a certain time to come back to higher temperatures and thus to be fully functional.

Aufgabe der Erfindung ist es, diese Nachteile zu vermeiden und die Abgasreinigung durch Katalysatoren auf möglichst einfache Weise im wesentlichen mit ohnehin benötigten Mitteln durchzuführen.The object of the invention is to avoid these disadvantages and to reduce exhaust gas purification by means of catalysts as far as possible simple way to carry out essentially with resources that are required anyway.

409815/0500409815/0500

- 2 - Daim 9520/4- 2 - Daim 9520/4

Diese Aufgabe wird durch die Erfindung dadurch gelöst, daß das Katalysatorbett aus wenigstens einem zylindrischen, elliptischen oder dgl. Mantel besteht, der die Katalysatorträger aufnimmt und von einem rechteckigen GehäuSe"umgeben ist v.v., dessen Wandung einerseits in die Abgasabführung«-v:r leitung und andererseits in einen Schalldämpfer tibergeht, den eine Sammelleitung durchdringt, die, gegebenenfalls mit entsprechenden Anschlußrohreh, an die Ausgänge der zylindrischen Katalysatorbetten angeschlossen ist und die sich nach dem Schalldämpfer mit einer aus diesem kommenden Röhre vereinigt, die absperrbar ist. Demgemäß können auch die Katalysatorbetten einen rechteckigen Mantel aufweisen, der von einem zylindrischen, elliptischen oder dgl. Gehäuse umgeben ist. In weiterer zweckmäßiger Ausgestaltung der Erfindung kann das Katalysatorbett aus vier dicht nebeneinander liegenden zylindrischen oder elliptischen Mänteln bestellen, die unmittelbar von einem gemeinsamen rechteckigen Gehäuse umgeben sind. Dabei kann die Röhre durch eine Drosselklappe absperrbar sein, die in Abhängigkeit von der Drehzahl der Verbrennungskraftmaschine, vorzugsweise über ein von einem Elektromotor angetriebenes Schneckengetriebe, geöffnet oder ge- ..■■> schlossen wird.This object is achieved by the invention in that the catalyst bed consists of at least one cylindrical, Elliptical or the like. Sheath, which receives the catalyst support and is surrounded by a rectangular "GehäuSe" is v.v., the wall of which is on the one hand in the exhaust gas discharge «-v: r line and on the other hand in a silencer that penetrates a collecting line, which, if necessary, with corresponding connection pipes, is connected to the outputs of the cylindrical catalyst beds and which are located according to the muffler is combined with a pipe coming out of this, which can be shut off. The catalyst beds can also accordingly Have a rectangular jacket which is surrounded by a cylindrical, elliptical or the like. Housing. In a further expedient embodiment of the invention, the catalyst bed can consist of four closely adjacent order cylindrical or elliptical sheaths that are immediate are surrounded by a common rectangular housing. The tube can be shut off by a throttle valve be, which depends on the speed of the internal combustion engine, preferably via a worm gear driven by an electric motor, open or closed .. ■■> is closed.

Schließlich können die Räume zwischen dem die Katalysatorbetten umgebenden Gehäuse und dem Schalldämpfer durch eine Trennwand abgeschlossen sein und die Röhre, die auch noch den Schalldämpfer bis zu ihrer Mündung in der-Trennwand durchdringt, kann im Dereich des Inneren dee Schalldämpfers mit Löchern versehen sein.Finally, the spaces between the housing surrounding the catalyst beds and the muffler can be through a Partition wall to be completed and the tube, which also has the silencer up to its opening in the partition wall penetrates, the silencer can be in the area of the interior be provided with holes.

Durch die Integration der Bypassleitung in das Katalysatorgehäuse wird bewirkt, daß der Katalysator auch im abgeschalteten Zustand auf Betriebstemperatur gehalten werden kann. Als weiterer Vorteil kann auch auf eine abgesonderte Umgehungsleitung verzichtet werden, "Wodurch Einbaurauni gewonnen wird. :" ■ ·' ■'.':The integration of the bypass line in the catalytic converter housing means that the catalytic converter can be kept at operating temperature even when it is switched off. As a further advantage, a separate bypass line can be dispensed with, "Which means that installation ameni is gained .: " ■ · '■'. ':

'■'■ ■ ■ . ; -3-'■' ■ ■ ■. ; -3-

409815/0500409815/0500

BAD ORIGINALBATH ORIGINAL

- 3 - Dain» 9520/4- 3 - Dain »9520/4

Die Erfindung wird anhand eines in der Zeichnung dargestellten Ausführungsbeispiels in der folgenden Beschreibung näher erläutert, der auch weitere .Einzelheiten der Erfindung entnommen werden können. Es zeigen:The invention is illustrated by means of one in the drawing Embodiment explained in more detail in the following description, which also taken from further details of the invention can be. Show it:

Fig. 1 in schematischer Darstellung eine Verbrennungskraftmaschine mit Abgasleitungen und einem Auspufftopf, in dem in erfindungsgemäßer Weise Katalysatoren untergebracht sind,1 shows a schematic representation of an internal combustion engine with exhaust pipes and a muffler in which in the manner according to the invention Catalytic converters are housed,

Fig. 2 einen Schnitt nach der Linie II-II in Fig. 1 durch die Katalysatorbetten.FIG. 2 shows a section along the line II-II in FIG. 1 through the catalyst beds.

In Fig. 1 ist schematisch ein Motorblock 1 dargestellt. " Von diesem geht eine Abgasleitung 2" aus,, an die sich ein Auspufftopf 3 anschließt. In dem Auspufftopf 3 sind die Katalysatorbetten untergebracht, die im dargestellten Ausführungsbeispiel aus vier zylindrischen Mänteln k bestehen, die die Katalysatorträger 5 aufnehmen. Die vier dicht nebeneinander liegenden, die Katalysatorbetten bildenden Mäntel 4 sind unmittelbar von einem gemeinsamen rechteckigen Gehäuse 3 umgeben, das den Auspufftopf darstellt. Dieses Gehäuse 3 geht einerseits in einen Abgaszuführungsstutzen 6 und 'andererseits in einen Schalldämpfer 7 über. Diesen Schalldämpfer 7 durchdringt eine Sammelleitung 8, die mit Anschlußrohren 9, 10, und 12 an die Ausgänge 13 der zylindrischen Mäntel 4 der Katalysatorbetten angeschlossen ist. Der Schalldämpfer 7 ist gegenüber dem übrigen Gehäuse 3 durch eine Trennwand l4 getrennt. Die Sammelleitung 8 vereinigt sich nach dem Schalldämpfer 7 mit einer Röhre 15» deren am Gehäuse 3 i*1 der Trennwand lk liegende Mündung 16 die Verbindung zwischen dem Gehäuse 3 und der Röhre herstellt. Die Röhre 15 ist im Bereich des Schalldämpfers 7 mit einer Reihe von Löchern 17 versehen, die im Zusammenwirken mit dem Schalldämpfer 7 die schalldämpfende Wirkung herbeiführen. Die Röhre 15 kann durch eine Drosselklappe l8 abgesperrt werden. Diese wird durch einen Elektromotor 19 über einIn Fig. 1, an engine block 1 is shown schematically. "From this an exhaust pipe 2" goes out, to which a muffler 3 is connected. In the muffler 3, the catalyst beds are accommodated, which in the illustrated embodiment consist of four cylindrical jackets k , which accommodate the catalyst carrier 5. The four jackets 4 lying close to one another and forming the catalyst beds are immediately surrounded by a common rectangular housing 3 which represents the muffler. This housing 3 merges, on the one hand, into an exhaust gas feed nozzle 6 and, on the other hand, into a silencer 7. This silencer 7 penetrates a collecting line 8 which is connected with connecting pipes 9, 10 and 12 to the outlets 13 of the cylindrical jackets 4 of the catalyst beds. The muffler 7 is separated from the rest of the housing 3 by a partition 14. The collecting line 8 joins after the silencer 7 with a tube 15 »whose opening 16 lying on the housing 3 i * 1 of the partition wall lk establishes the connection between the housing 3 and the tube. The tube 15 is provided in the area of the silencer 7 with a series of holes 17 which, in cooperation with the silencer 7, bring about the sound-absorbing effect. The tube 15 can be shut off by a throttle valve 18. This is by an electric motor 19 via a

409815/0 5 00 BAD OBJGINA&O ',.Mi409815/0 5 00 BAD OBJGINA & O ', .Mi

- 4 - Daim 9520/4- 4 - Daim 9520/4

Schneckengetriebe 20 in Abhängigkeit von der Drehzahl der Brennkraftmaschine geöffnet oder geschlossen.Worm gear 20 open or closed depending on the speed of the internal combustion engine.

Sollen die Katalysatoren eingeschaltet werden, wird die Drosselklappe l8 geschlossen. Das gesamte Abgas strömt dann durch die Katalysatorbatterien 4. Im ,Anschluß an diese wird das Abgas durch die Anschlußrohre 9t 10, 11, 12 gesammelt und dann durch die Sammelleitung 8 durch den Schalldämpfer hindurch zum Hauptschalldämpfer 2 3 geführt.If the catalytic converters are to be switched on, the throttle valve l8 is closed. All of the exhaust gas then flows through the catalyst batteries 4. Following this, the exhaust gas is collected through the connecting pipes 9t 10, 11, 12 and then through the manifold 8 through the muffler through to the main silencer 2 3.

Der Elektromotor 19 wird bei höherer Drehzahl eingeschaltet, so daß dann die Drosselklappe l8 geöffnet wird. Das Abgas . strömt nun infolge des höheren Strömungswiderstandes in den Katalysatoren zwischen den zylindrischen Mänteln 4 derselben und dem Gehäuse 3 hindurch. Nachdem das Abgas die Katalysatoren passiert hat, gelangt es in den Schalldämpfer 7 und von dort über die Röhre 15 in die Sammelleitung β und in den Hauptschalldämpfer 23.The electric motor 19 is switched on at a higher speed, so that the throttle valve l8 is then opened. The exhaust. now flows into the due to the higher flow resistance Catalysts between the cylindrical shells 4 of the same and the housing 3 through. After the exhaust the catalytic converters has happened, it gets into the muffler 7 and from there via the tube 15 into the collecting line β and into the Main silencer 23.

4 0 9 8 1 5/05004 0 9 8 1 5/0500

BAD ORIGINALBATH ORIGINAL

Claims (2)

- 5 - Daim 9520/4- 5 - Daim 9520/4 AnsprücheExpectations f 1·\ Vorrichtung zur Reinigung von Abgasen aus Verbrennungsv/ kraftmaschinen durch Nachverbrennung in einem im Auspuff angeordneten Katalysatorsystem, dessen Durchströmung durch Absperrelemente steuerbar ist, dadurch gekennzeichnet, daß das Katalysatorbett (4) aus wenigstens einem zylindrischen, elliptischen oder dgl,* Mantel (4) besteht, der die Katalysatorträger (5) aufnimmt und von einem rechteckigen Gehäuse (3) umgeben ist v.v., dessen Wandung einerseits in einen Abgaszuführungsstutzen (6) und andererseits in'einen Schalldämpfer (7) übergeht, den eine Sammelleitung (8) durchdringt, die, gegebenenfalls mit entsprechenden Anschlußrohren (9 - 12), an die Ausgänge (13) der zylindrischen Katalysatorbetten (4) angeschlossen ist und sich nach dem Schalldämpfer (7) mit einer aus diesem kommenden Röhre (15) vereinigt, die absperrbar ist*f 1 · \ Device for cleaning exhaust gases from combustion v / engines through afterburning in one in the exhaust arranged catalyst system, the flow of which can be controlled by shut-off elements, characterized in that the catalyst bed (4) consists of at least one cylindrical, elliptical or similar, * Sheath (4) which receives the catalyst carrier (5) and is surrounded by a rectangular housing (3) is v.v., the wall of which into an exhaust gas feed nozzle (6) and, on the other hand, merges into a silencer (7) which is penetrated by a collecting line (8), which, if necessary with corresponding connecting pipes (9-12), to the outputs (13) of the cylindrical Catalyst beds (4) is connected and after the muffler (7) with a coming from this Tube (15) combined, which can be shut off * 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Katalysatorbett (4) aus vier^dicht nebeneinander liegenden zylindrischen Mänteln (4) besteht, die unmittelbar von einem gemeinsamen rechteckigen Gehäuse (3) umgeben sind.2. Apparatus according to claim 1, characterized in that the catalyst bed (4) of four ^ close together lying cylindrical jackets (4) which are immediately surrounded by a common rectangular housing (3) are. 3* Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Rohre (15) durch eine Drosselklappe (l8) absperrbar ist, die in Abhängigkeit von der Drehzahl der Verbrennungskraftmaschine, vorzugsweise über ein von einem Elektromotor (19) angetriebenes Schneckengetriebe (20), geöffnet oder geschlossen wird.3 * Device according to claim 1 or 2, characterized in that that the pipes (15) through a throttle valve (l8) can be shut off, depending on the speed of the internal combustion engine, preferably via a an electric motor (19) driven worm gear (20), is opened or closed. 15/JJBOO; . .15 / JJBOO; . . - 6 - Daim 9520/Ί- 6 - Daim 9520 / Ί Vorrichtung nach den Ansprüchen 1 - 3t dadurch gekennzeichnet, daß die Räume zwischen dem die Katalysator· betten (4) umgebenden Gehäuse (3) und dem Schalldämpfer (7) durch eine Trennwand (l4) abgeschlossen sind und daß die Röhre (l5)f die auch noch den Schalldämpfer (7) bis zu ihrer Mündung (l6) in der Trennwand (l4) durchdringt« im Bereich des Inneren des Schalldämpfers (7) mit Löchern. (l7) versehen ist.Device according to claims 1 to 3 t characterized in that the spaces between the catalyst · beds (4) housing surrounding (3) and the muffler (7) by a partition (l4) have been completed and that the tube (l5) f which also penetrates the silencer (7) up to its opening (l6) in the partition (l4) in the area of the interior of the silencer (7) with holes. (l7) is provided. 4098 1 5/05004098 1 5/0500
DE19722247947 1972-09-29 1972-09-29 DEVICE FOR PURIFYING EXHAUST GAS FROM COMBUSTION ENGINE Pending DE2247947A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19722247947 DE2247947A1 (en) 1972-09-29 1972-09-29 DEVICE FOR PURIFYING EXHAUST GAS FROM COMBUSTION ENGINE
GB4315373A GB1400984A (en) 1972-09-29 1973-09-13 Cleaning exhaust gases of internal combustion engines
FR7334805A FR2205100A5 (en) 1972-09-29 1973-09-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722247947 DE2247947A1 (en) 1972-09-29 1972-09-29 DEVICE FOR PURIFYING EXHAUST GAS FROM COMBUSTION ENGINE

Publications (1)

Publication Number Publication Date
DE2247947A1 true DE2247947A1 (en) 1974-04-11

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ID=5857808

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722247947 Pending DE2247947A1 (en) 1972-09-29 1972-09-29 DEVICE FOR PURIFYING EXHAUST GAS FROM COMBUSTION ENGINE

Country Status (3)

Country Link
DE (1) DE2247947A1 (en)
FR (1) FR2205100A5 (en)
GB (1) GB1400984A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629945A1 (en) * 1986-09-03 1987-10-01 Daimler Benz Ag Device for aftertreatment of the exhaust gases of an internal combustion engine
US4961314A (en) * 1988-08-15 1990-10-09 Arvin Industries, Inc. Tuned exhaust processor assembly
US5009065A (en) * 1988-08-15 1991-04-23 Arvin Industries, Inc. Tuned exhaust processor assembly
US5048287A (en) * 1988-08-15 1991-09-17 Arvin Industries, Inc. Tuned exhaust processor assembly
US5211012A (en) * 1988-08-26 1993-05-18 Emitec Gesellschaft Fur Emissionstechnologie Mbh Catalytic converter housing, particularly for starting catalytic converters, and associated catalyst carrier body

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000046B (en) * 1977-07-01 1982-03-24 Johnson Matthey Co Ltd Improved catalyst
DE3528208A1 (en) * 1985-08-06 1987-02-12 Interatom ASSEMBLED CATALYST SUPPORT BODY WITH LARGE CROSS-SECTIONAL AREA
FR2902825B1 (en) * 2006-06-21 2011-03-04 Peugeot Citroen Automobiles Sa EXHAUST LINE FOR IGNITION ENGINES

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629945A1 (en) * 1986-09-03 1987-10-01 Daimler Benz Ag Device for aftertreatment of the exhaust gases of an internal combustion engine
US4961314A (en) * 1988-08-15 1990-10-09 Arvin Industries, Inc. Tuned exhaust processor assembly
US5009065A (en) * 1988-08-15 1991-04-23 Arvin Industries, Inc. Tuned exhaust processor assembly
US5048287A (en) * 1988-08-15 1991-09-17 Arvin Industries, Inc. Tuned exhaust processor assembly
US5211012A (en) * 1988-08-26 1993-05-18 Emitec Gesellschaft Fur Emissionstechnologie Mbh Catalytic converter housing, particularly for starting catalytic converters, and associated catalyst carrier body

Also Published As

Publication number Publication date
FR2205100A5 (en) 1974-05-24
GB1400984A (en) 1975-07-16

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