WO2017103207A1 - Système de retraitement des gaz d'échappement et procédé permettant de faire fonctionner ledit système - Google Patents

Système de retraitement des gaz d'échappement et procédé permettant de faire fonctionner ledit système Download PDF

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Publication number
WO2017103207A1
WO2017103207A1 PCT/EP2016/081582 EP2016081582W WO2017103207A1 WO 2017103207 A1 WO2017103207 A1 WO 2017103207A1 EP 2016081582 W EP2016081582 W EP 2016081582W WO 2017103207 A1 WO2017103207 A1 WO 2017103207A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
movable element
gas aftertreatment
arrangement according
aftertreatment arrangement
Prior art date
Application number
PCT/EP2016/081582
Other languages
German (de)
English (en)
Inventor
Oswald HOLZ
Original Assignee
Continental Automotive Gmbh
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 Continental Automotive Gmbh filed Critical Continental Automotive Gmbh
Priority to EP16819874.5A priority Critical patent/EP3390787A1/fr
Priority to US16/063,389 priority patent/US20180371973A1/en
Priority to CN201680073766.XA priority patent/CN108368759A/zh
Publication of WO2017103207A1 publication Critical patent/WO2017103207A1/fr

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
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
    • 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
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2825—Ceramics
    • F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs
    • 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
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/36—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an exhaust flap
    • 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
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
    • F01N2410/02—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device in case of high temperature, e.g. overheating of catalytic reactor
    • 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
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
    • F01N2410/10—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device for reducing flow resistance, e.g. to obtain more engine power
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • Such exhaust aftertreatment devices with a honeycomb body are known as catalysts for exhaust aftertreatment.
  • the catalyst usually has a jacket, which surrounds the honeycomb body on the one hand and on the other hand is in communication with the exhaust pipe.
  • the operating temperature required for the catalytic reaction is usually supplied by the exhaust gas which, as it flows through the catalyst, partially releases its temperature to the catalyst, thereby heating it up.
  • the diameter of the catalyst is designed according to an exhaust gas flow to be defined, which is between the maximum and minimum accumulating Ab ⁇ gas flow. It should be noted that the exhaust gas flowing through the exhaust gas line has a higher temperature in relation to the cross section in the center than in the radially outer regions on the wall of the exhaust gas line. As a result of the heating of the catalyst and its structure, this also results in a higher temperature in the center than in the region of the jacket. To avoid that at low
  • the invention is therefore an object of the invention to provide an exhaust aftertreatment device and a method for operating an exhaust aftertreatment device, which ensures a sufficient after treatment of the exhaust gas for both maximum and minimum exhaust flows, without affecting the engine performance or consumption too much.
  • the first object is achieved in that the honeycomb body is a hollow cylinder with a central channel, that a movable element is arranged, which is movable between two end positions, wherein in the first end position, a larger cross section of the channel is released as in the second end position ,
  • the arrangement of the movable element between two end positions allows the adaptation of the exhaust aftertreatment device, in particular a catalyst, to the respective operating ⁇ conditions, in particular the exhaust gas stream and the temperature of the catalyst.
  • the movable element With low exhaust gas flows, which accordingly supply low energy for heating the catalyst and / or low temperature of the catalyst, the movable element is moved into the region of the second end position. This reduces the freely flowable cross section of the central channel located in the honeycomb body.
  • the inflowing exhaust gas is thus conducted radially outward and flows through the actual honeycomb body with its catalyst matrix, which is an arrangement of several sheet metal layers.
  • the formation of the honeycomb body with annular catalyst matrix and central channel leads to a reduced volume of the catalyst matrix, based on the cross section of the exhaust gas line.
  • an exhaust aftertreatment device with a small catalyst volume reduces the compressible gas volume. If the exhaust gas after - treatment device upstream of a turbomachine, in particular an exhaust gas turbocharger is arranged, thereby improving the dynamic behavior and the response of the turbomachine.
  • the first end position releases the channel cross section to at least 75%.
  • a completely open channel has the advantage of generating the lowest back pressure even with large exhaust gas flows. Nevertheless, it may be advantageous to define the end position for a smaller opening cross section of the channel.
  • in a round Kanalguer bain be achieved at the same Because of the Move ⁇ union member in a half-open channel substantially larger cross-section changes as in the edge regions of a closed or fully open channel. This means that the effort in the peripheral areas for the movement of the element is high, but only small cross-sectional changes are achieved. In this respect, the effort for the movement of the movable element by the definition of the first end position in a range between 75% and 100% can be significantly reduced.
  • the movement of the element takes place in a particularly advantageous manner rotatory.
  • the element is designed as a flap, which is attached to a shaft. By rotating the shaft, the channel cross-section of the flap is opened or closed.
  • the movement of the element takes place in the form of a pivoting movement.
  • the movable element is for this purpose connected to a pivot arm which is moved about a pivot axis.
  • the advantage of such an embodiment is that the pivot axis can be placed in areas outside the main flow, so that the channel cross-section is not affected by the pivot axis.
  • the pivot axis can be arranged in an advantageous manner in the wall of the exhaust pipe, preferably perpendicular to the axis of the exhaust pipe.
  • the movable element may be formed in the manner of a stopper, wherein the training is fluidically adapted according to the position at the inlet or outlet side.
  • Advantageous basic shapes are a ball, cone, dome or teardrop shape.
  • the movable element is moved translationally. The advantage is that in such a movement, the element can be moved away from the channel cross-section, so that the cross-section is completely free, while a flap and the shaft connected to it covers a part of the channel cross-section, even in the fully open state.
  • the movable element is a slider, in particular a rigid slider.
  • the movable element is a flexible slider.
  • a flexible slider For example, a rolling diaphragm or one of several, movably interconnected, rigid sub-elements existing slide understood. Such slides allow a one-sided attachment of the slider in the second end position, which simplifies the leadership of the slider.
  • the exhaust-gas treatment device is arranged close to a bend of the exhaust pipe
  • the form movable element as a translationally to be moved slide, wherein the movement of the slider along the axis of rotation of the exhaust ⁇ -treatment apparatus takes place.
  • the curvature of the exhaust pipe causes the translator to be moved slider or a moving element out of the exhaust pipe out, so that the drive for the slide can be arranged outside the exhaust pipe.
  • the channel cross-section is hardly affected, since due to the curvature of the exhaust pipe, the gas flow is deflected anyway and the influence of the gas flow through the slider or the slider moving element is negligible.
  • the design of the movable element for closing can also take place in the form of a sealing plug and be optimized according to fluid flow.
  • the fiction, modern ⁇ exhaust aftertreatment arrangement allows the use of an unchanged honeycomb body when the movable member is maintained in the exhaust line and / or is guided.
  • the element is positioned in such a way to the honeycomb body that it is arranged directly to the central channel. This will also be among others favors that the channel does not necessarily have to be closed. Elaborate seals are not required.
  • a particularly good introduction of the exhaust in the Katalysa ⁇ tormatrix is achieved that the movable element is arranged in flow direction in the region of the inlet of the channel.
  • the arrangement of the movable element in the flow direction in the region of the outlet of the channel has the advantage that when the cross section is closed, the exhaust gas flowing into the channel can contribute to the heating of the catalyst matrix surrounding the channel due to its longer residence time.
  • the drive of the movable element is carried out in the simplest manner by means of an electric motor. Due to the good controllability and controllability of an electric motor, the element can thereby move reliably and accurately. In addition, this Fully ⁇ staltung allows the control of any intermediate position, whereby the exhaust gas aftertreatment arrangement according to the invention is well adapted to different operating conditions.
  • In another embodiment may be dispensed with electrical connections for the electric motor and the control, when the movable member is moved in response to pressure conditions by being connected by a pressure and spring applied push rod.
  • the second object of the invention is achieved in that at low exhaust gas flows, the movable element is moved in the direction of the second end position, and is moved at larger exhaust gas flows in the direction of the first end position.
  • the cross section of the central channel is increased or decreased.
  • the part of the exhaust gas stream which bypasses the catalyst matrix via the channel in this way prevents the formation of a backpressure that would arise if an excessively large exhaust gas flow were conducted via the catalyst matrix.
  • the adaptation of the arrangement to the various exhaust gas flows can be ensured in an advantageous manner in that the movable element is movable in intermediate positions within the two end positions.
  • FIG. 1 is a schematic representation of a Abgasnach- treatment arrangement
  • 2 shows the exhaust aftertreatment arrangement according to FIG. 1 in another operating state
  • FIG. 1 is a schematic representation of a Abgasnach- treatment arrangement
  • Fig.4-7 further embodiments of the movable element.
  • FIG. 1 shows a section of an exhaust gas line 1 in which a catalytic converter acting as an exhaust gas aftertreatment device 2 is arranged. Downstream of the catalyst 2, a further exhaust gas aftertreatment device 3, which is likewise designed as a catalyst, is arranged.
  • the catalyst 2 has a jacket 4 which surrounds a honeycomb body 5.
  • the honeycomb body 5 is formed by a plurality of sheet metal layers which form a catalyst matrix 6 and which is an overflow surface for the exhaust gas, with a catalytic reaction taking place in the exhaust gas flowing through as it flows through the catalyst matrix 6.
  • the honeycomb body 5 has along its longitudinal axis a central channel 7 through which exhaust gas can flow, bypassing the catalyst matrix 6.
  • the main flow direction of the exhaust gas is shown by an arrow.
  • a movable element 9 which blocks the inlet 8 in the illustration shown.
  • the movable member is a flap 9 which is fixed to a shaft 10.
  • the shaft 10 is connected to an electric motor 11 acting as a drive, so that by actuation of the electric motor 11, the flap 9 can be rotated.
  • the flap 9 In the position shown, the flap 9 is in the second end position.
  • the inflowing exhaust gas is almost completely directed onto the catalyst matrix 6 and flows through it.
  • the flap 9 is moved into this end position with low exhaust gas Massenströ-men, at these mass flows, the catalyst matrix 6 is sufficiently large, so that the flowing exhaust gas builds up almost no disturbing back pressure.
  • the flap 9 was rotated by the electric motor 11 by 90 ° and thus moved to the first end position, whereby the maximum possible cross section of the channel 7 released is.
  • This orientation takes the flap 9 at maximum Ab ⁇ gas mass flows.
  • a portion of the exhaust gas can flow through the channel 7 unhindered, the honeycomb body 5 in a kind of bypass. Only the part of the exhaust gas stream which flows radially outward in the exhaust gas line 1 strikes the catalyst matrix 6 and flows through it.
  • the part of the exhaust gas flowing through the channel 7 and not after-treatment meets downstream of a second catalyst 3, which has no bypass channel, so that the entire exhaust gas flow has to flow through the catalyst matrix for aftertreatment.
  • Figure 3 shows a further arrangement of the movable element 9 in the honeycomb body 5, in which no additional space for the inventive exhaust aftertreatment device 12 over a conventional honeycomb body 5 is necessary.
  • the movable element 9 in Figure 4 this is arranged at the outlet 13 of the channel 7.
  • the mounting of the ⁇ be moveable member 9 is located in the exhaust pipe 1, which has a separate section 14 in this area.
  • the channel 7 is closed, wherein under closed no gas-tight seal is to be understood.
  • the low leakage rates are negligible, but in return allow a much simpler and thus cost-effective arrangement of the exhaust aftertreatment device 2 to the movable element 9.
  • the element 9 is in this orientation at low exhaust gas mass flows sen. In this case, a large part of the exhaust gas first flows into the channel 7, before the subsequently flowing exhaust gas is directed into the catalyst matrix 6.
  • the exhaust gas in the channel 7 causes due to its residence time in the channel 7 a much faster heating of the honeycomb body. 5
  • FIG. 5 shows the honeycomb body 5 with a rigid slide 15.
  • the slide 15 is connected via a rod 16 to an electric motor 11.
  • the electric motor 11 drives the rod 16, so that the slide 15 is movable perpendicular to the longitudinal axis of the honeycomb body 5 by the translational movement thereof.
  • the slide 15 is in the first end position and releases the cross section of the channel 7 to 80%.
  • Figures 6 and 7 show further embodiments, wherein in Figure 6, the movable member 9 is connected to a pivot arm 17 which is pivotable about a pivot axis 18.
  • the pivot axis 18 is connected as a shaft 10 with a drive 11.
  • the pivot axis 18 is disposed on the wall of the exhaust pipe 1 and thus outside of the main flow.
  • the movable element 9 has a dome-shaped sealing plug 19 which is connected to the
  • Swivel arm 17 is connected. In order to keep the influence on the flow cross-section small, it is conceivable that from ⁇ gas line 1 in cross section in such a way to increase that 20 receive the magnification, the throw-off from the catalyst 2 movable element 9 at least partially.
  • the movable element 9 in Fig. 7 also has a dome-shaped sealing plug 19, which closes the channel 7.
  • the exhaust gas line is curved, so that the translationally movable slide 21 connected to the sealing plug 19 is led out through the exhaust gas line when it is arranged as an extension of the axis of rotation of the catalytic converter 2.
  • the movement of the slide 21 via a drive, not shown, which is located outside of the exhaust pipe 1.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Ceramic Engineering (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

L'invention concerne un système de retraitement des gaz d'échappement muni d'un tuyau d'échappement (1) et d'au moins un dispositif de retraitement des gaz d'échappement (2), qui présente un élément en nid d'abeilles (5) formant une surface de passage des gaz d'échappement. L'élément en nid d'abeilles (5) est un cylindre creux présentant un canal central (7), un élément mobile (9, 15) étant agencé de manière déplaçable entre deux positions de fin de course, une section transversale dégagée du canal (7) étant plus grande dans la première position de fin de course que dans la seconde position de fin de course.
PCT/EP2016/081582 2015-12-18 2016-12-16 Système de retraitement des gaz d'échappement et procédé permettant de faire fonctionner ledit système WO2017103207A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16819874.5A EP3390787A1 (fr) 2015-12-18 2016-12-16 Système de retraitement des gaz d'échappement et procédé permettant de faire fonctionner ledit système
US16/063,389 US20180371973A1 (en) 2015-12-18 2016-12-16 Exhaust gas after-treatment arrangement and method for operating such an arrangement
CN201680073766.XA CN108368759A (zh) 2015-12-18 2016-12-16 排气后处理系统和用于运行排气后处理系统的方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102015226110 2015-12-18
DE102015226110.7 2015-12-18
DE102016225279.8 2016-12-16
DE102016225279.8A DE102016225279A1 (de) 2015-12-18 2016-12-16 Abgasnachbehandlungsanordnung und Verfahren zum Betreiben einer Abgasnachbehandlungsanordnung

Publications (1)

Publication Number Publication Date
WO2017103207A1 true WO2017103207A1 (fr) 2017-06-22

Family

ID=58994282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/081582 WO2017103207A1 (fr) 2015-12-18 2016-12-16 Système de retraitement des gaz d'échappement et procédé permettant de faire fonctionner ledit système

Country Status (5)

Country Link
US (1) US20180371973A1 (fr)
EP (1) EP3390787A1 (fr)
CN (1) CN108368759A (fr)
DE (1) DE102016225279A1 (fr)
WO (1) WO2017103207A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020119057B3 (de) * 2020-07-20 2021-08-26 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Abgastrakt für eine Verbrennungskraftmaschine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54108815U (fr) * 1978-01-18 1979-07-31
JPS5510018A (en) * 1978-07-06 1980-01-24 Toyota Motor Corp Catalyzer converter
US5787706A (en) * 1993-12-30 1998-08-04 Ab Volvo Exhaust gas purification device
US20020117773A1 (en) * 2001-02-26 2002-08-29 Keiichi Yamada Molding die, hollow ceramic monolithic support and method of manufacturing the same, and catalytic converter system
EP2163743A1 (fr) * 2008-09-15 2010-03-17 Ifp Installation de traitement des polluants contenus dans des gaz d'échappement d'un moteur à combustion interne et procédé utilisant une telle installation
DE102011111088A1 (de) * 2011-08-18 2013-02-21 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) System zur Abgasgegendruckminderung
WO2015065269A1 (fr) * 2013-10-29 2015-05-07 Scania Cv Ab Agencement de vanne pour régler l'écoulement d'échappements à travers un catalyseur d'oxydation

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
US5582003A (en) * 1994-04-28 1996-12-10 Corning Incorporated Temperature actuated zeolite in-line adsorber system
US6024928A (en) * 1998-06-15 2000-02-15 General Motors Corporation By-pass flow catalytic converter
US8935918B2 (en) * 2010-04-23 2015-01-20 GM Global Technology Operations LLC Reconfigurable mixer for an exhaust aftertreatment system and method of using the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54108815U (fr) * 1978-01-18 1979-07-31
JPS5510018A (en) * 1978-07-06 1980-01-24 Toyota Motor Corp Catalyzer converter
US5787706A (en) * 1993-12-30 1998-08-04 Ab Volvo Exhaust gas purification device
US20020117773A1 (en) * 2001-02-26 2002-08-29 Keiichi Yamada Molding die, hollow ceramic monolithic support and method of manufacturing the same, and catalytic converter system
EP2163743A1 (fr) * 2008-09-15 2010-03-17 Ifp Installation de traitement des polluants contenus dans des gaz d'échappement d'un moteur à combustion interne et procédé utilisant une telle installation
DE102011111088A1 (de) * 2011-08-18 2013-02-21 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) System zur Abgasgegendruckminderung
WO2015065269A1 (fr) * 2013-10-29 2015-05-07 Scania Cv Ab Agencement de vanne pour régler l'écoulement d'échappements à travers un catalyseur d'oxydation

Also Published As

Publication number Publication date
CN108368759A (zh) 2018-08-03
DE102016225279A1 (de) 2017-06-22
EP3390787A1 (fr) 2018-10-24
US20180371973A1 (en) 2018-12-27

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