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NL2034346B1 - An exhaust after treatment assembly. - Google Patents

An exhaust after treatment assembly. Download PDF

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Publication number
NL2034346B1
NL2034346B1 NL2034346A NL2034346A NL2034346B1 NL 2034346 B1 NL2034346 B1 NL 2034346B1 NL 2034346 A NL2034346 A NL 2034346A NL 2034346 A NL2034346 A NL 2034346A NL 2034346 B1 NL2034346 B1 NL 2034346B1
Authority
NL
Netherlands
Prior art keywords
compartment housing
exhaust
base portion
flat base
cartridge
Prior art date
Application number
NL2034346A
Other languages
Dutch (nl)
Inventor
Van Linden Thomas
Thomas Everardus Janssen Franciscus
Original Assignee
Daf Trucks Nv
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 Daf Trucks Nv filed Critical Daf Trucks Nv
Priority to NL2034346A priority Critical patent/NL2034346B1/en
Application granted granted Critical
Publication of NL2034346B1 publication Critical patent/NL2034346B1/en

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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
    • 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
    • F01N3/0211—Arrangements for mounting filtering elements in housing, e.g. with means for compensating thermal expansion or vibration
    • 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
    • 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
    • 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
    • F01N3/103—Oxidation catalysts for HC and CO only
    • 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
    • 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
    • F01N2250/00—Combinations of different methods of purification
    • F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
    • 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
    • F01N2450/30—Removable or rechangeable blocks or cartridges, e.g. for filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Materials Engineering (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

Title: An exhaust after treatment assembly. Abstract An exhaust after treatment assembly configured to cooperate with a diesel combustion engine. The assembly comprises an exhaust compartment housing, a diesel particulate filter (DPF) and a diesel oxidation catalyst (DOC) movably disposed in the exhaust compartment housing. The DPF and the DOC being cylindrical structures with circular cross sections and being situated axially adjacently in an inter-connected manner to form a cartridge. Distancing means are arranged between the cartridge and the exhaust compartment housing and comprise a metal pressing having a flat base portion positioned against an inner surface of the exhaust compartment housing. The metal pressing comprises a stopper section at a first end of the flat base portion, which stopper section extends transverse from the flat base portion away from the inner surface of the exhaust compartment housing. The metal pressing is annular and the flat base portion is loosely positioned against the inner surface of the exhaust compartment housing and comprises at a second end of the flat base portion opposite the first end a resilient receiving profile configured for receiving a sealing means directly contacting the inner surface of the exhaust compartment housing and positioned between the inner surface of the exhaust compartment housing and the resilient receiving profile. The sealing means are formed by a braided, annular shaped rope of temperature insensible material.

Description

P134698NL00
Title: An exhaust after treatment assembly.
The invention relates to an exhaust after treatment assembly configured to cooperate with a diesel combustion engine according to the preamble of claim 1.
Such an exhaust after treatment assembly for an internal diesel combustion engine is for example known from WO17116329A1. In this known exhaust after treatment assembly for an internal diesel combustion engine the exhaust compartment housing defines an interior exhaust passage chamber between an inlet and an outlet, through which combustion exhaust is received and treated by e.g. diesel particulate filter (DPF) and a diesel oxidation catalyst (DOC) component disposed in the exhaust compartment housing. The DPF- and the DOC-components are removable arranged inside the exhaust compartment housing so that a maintenance operation can be carried out, e.g. to replace the components. In the known assembly the DPF- and the DOC-components are fixedly connected to each other (thereby together forming a cartridge) inside the exhaust compartment housing in operational state by means of a releasable clamping means formed by a V-clamp having a sealing means within the enclosure thereof, thereby providing impermeability at the interconnection region of the DPF- and the DOC-components. One of the DPF- and the DOC- components is fully enclosed by a treatment component housing which is supported by two reinforcement brackets to maintain a distance between the treatment component housing and the exhaust compartment housing, and thus to maintain a distance or a tolerance gap between the one of the
DPF- and the DOC-components and the exhaust compartment housing. The reinforcement brackets comprises a flat base portion fixedly attached to the exhaust compartment housing and a stopper section extending transverse from the flat base portion away from an inner surface of the exhaust compartment housing to keep the tolerance gap. Although in the known exhaust after treatment assembly the DPF- and the DOC-components are inter-connected in an impermeable manner the mounting construction of the cartridge inside the exhaust compartment housing by means of the treatment component housing and the two reinforcement brackets fixedly attached to the exhaust compartment housing in some cases in which large forces act upon the DPF- and the DOC-components, e.g. when the pressure difference over the DOC is higher than over the DPF due to a high HC- emission of the engine for instance as a result of a malfunctioning engine part, the DOC-component can move radially and axially within the exhaust compartment housing thereby causing damage to the DOC-component or the cartridge. Such DOC-component movement can also deteriorate the impermeable connection between the DPF- and the DOC-components. In addition, although the cartridge formed by the DPF- and the DOC- components is removable from the exhaust compartment housing, the removal thereof requires some additional operations since the stopper sections of the two reinforcement brackets fixedly attached to the exhaust compartment housing provide some obstacle for the V-clamp inter- connecting the DPF- and the DOC-components.
It is thus an object of the invention to provide an alternative exhaust after treatment assembly in which preferably DOC-component movement is at least reduced, in which prevention of leakage of exhaust gasses 1s improved and/or in which removal and replacement of a cartridge of the DPF- and the DOC-components is made more easy.
According to the invention at least one of these objects is obtained by providing an exhaust after treatment assembly configured to cooperate with a diesel combustion engine according to claim 1. By loosely positioning the metal pressing against the inner surface of the exhaust compartment housing, i.e. not fixedly attaching the distancing means to the exhaust compartment housing as disclosed in WO17116329A1, the distancing means is also removable from the exhaust compartment housing thereby facilitating removal of the cartridge. In addition, in operational state the resilient receiving profile presses and keeps the sealing means in direct contact with the inner surface of the exhaust compartment housing thereby dampening radial movement of the cartridge inside the exhaust compartment housing as a result of which damage of the cartridge due to such movement is at least reduced. Furthermore, due to the sealing means, which is formed from a temperature insensible material, i.e. a material having a very low thermal expansion coefficient and a low thermal conductivity, a sealing between the cartridge and the exhaust compartment housing is provided which provides a sealing additional to a sealing between the DOC- and DPF-components. By being braided the sealing means provides an additional resiliency to the resilient receiving profile thereby improving dampening of movement of the cartridge inside the exhaust compartment housing.
In an embodiment of an exhaust after treatment assembly according to the invention the material of the sealing means is inorganic and incombustible, in particular the sealing means are formed by silica rope packing, which makes the sealing means extremely suitable for use in an exhaust after treatment assembly with regard to the operation conditions.
In a further embodiment of an exhaust after treatment assembly according to the invention the cartridge is provided with a groove, preferably the groove being arranged in the diesel oxidation catalyst, and the resilient receiving profile is positioned in the groove. In this manner a correct positioning of the distancing means and the cartridge / diesel oxidation catalyst is obtained in a relatively easy manner.
In case the metal pressing is composed of three equal sections removal and replacement of the cartridge and the distancing means can be effected relatively easy. Preferably, the diesel particulate filter and the diesel oxidation catalyst are releasably inter-connected so that they can be removed/replaced separately.
The invention will be further explained with reference to the
Figure, in which a non-limiting exemplary embodiment of an exhaust after treatment assembly according to the invention is shown:
Fig. 1 schematically shows an embodiment of an exhaust after treatment assembly according to the invention in perspective;
Fig. 2 schematically shows a cartridge formed by a cylindrical diesel particulate filter and a cylindrical diesel oxidation catalyst of the embodiment of Figure 1 in perspective;
Fig. 3 schematically shows the exhaust compartment housing and the distancing means of the embodiment of Figure 1 in perspective;
Fig. 4 schematically shows the distancing means of the embodiment of Figure 3 in perspective;
Fig. 5 schematically shows an embodiment of a distancing means comprising a metal pressing composed of three equal sections; and
Fig. 6 schematically shows a cross-section of a part of the embodiment of an exhaust after treatment assembly shown in Figure 1.
In Fig. 1 an example of an embodiment of an exhaust after treatment assembly is schematically shown in perspective. The exhaust after treatment assembly comprises an exhaust compartment housing 1 in which a diesel particulate filter 2 and a diesel oxidation catalyst 3 are movably disposed. As is more clearly indicated in Figure 2 the diesel particulate filter 2 and the diesel oxidation catalyst 3 are cylindrical structures with circular cross sections and are situated axially adjacently in an inter-connected manner to form a cartridge 4. The diesel particulate filter 2 and the diesel oxidation catalyst 3 can either by fixedly connected to each other or releasably inter-connected, the latter providing a possibility of separately removing or replacing the diesel particulate filter 2 or the diesel oxidation catalyst 3.
According to the invention and as more clearly indicated in Figures 3, 4 and 6 distancing means 5 are arranged between the cartridge 4 and the exhaust compartment housing 1. The distancing means 5 comprise a metal pressing 5A having a flat base portion 6 loosely positioned, i.e. not fixed to, 5 against an inner surface 1A of the exhaust compartment housing 1. The metal pressing 5A further comprises a stopper section 7 at a first end of the flat base portion 6, which the stopper section 7 extends transverse from the flat base portion 6 away from the inner surface 1A of the exhaust compartment housing 1 to provide a stop for movement of the cartridge 4 towards the inner surface 1A of the exhaust compartment housing 1. The metal pressing 5A is annular and is at a second end of the flat base portion 6 opposite the first end provided with a resilient receiving profile 8 configured for receiving a sealing means 9 which, in operative condition, is in direct contact with the inner surface 1A of the exhaust compartment housing 1. The sealing means 9 is thus positioned between the inner surface 1A of the exhaust compartment housing 1 and the resilient receiving profile 8 and on the one hand provides a sealing for exhaust gasses and on the other hand dampens movement of the cartridge 4 inside the exhaust compartment housing 1. To ensure sealing and dampening at all temperature values, 1.e. also in a cold operative state, the sealing means 9 are formed by a braided, annular rope of temperature insensible material, which material preferably is inorganic and incombustible. In particular suitable is a sealing means 9 formed from silica rope packing, which is known as such.
As shown in the embodiment of Figures 2 and 6 the cartridge 4, in the shown embodiment the diesel oxidation catalyst 3, is provided with a groove 10 in which the resilient receiving profile 8 is positioned to provide a correct positioning of the distancing means 5 around the diesel oxidation catalyst 3. IN the embodiment shown in Figure 5 the metal pressing 5A of the distancing means 5 is composed of three equal sections 5A1, 5A2, 5A3,
which facilitates (re)placement of the distancing means 5 inside the exhaust compartment housing 1. For example, placement of a cartridge 4 formed by the diesel particulate filter 2 and the diesel oxidation catalyst 3 can be performed by first installing the distancing means 5 inside the exhaust compartment housing.
The resilient receiving profile 8 of the metal pressing
5A acts as a spring and holds the sealing silica rope 9 in position before the cartridge 4 is installed.
Thereafter the cartridge 4 can be inserted into the exhaust compartment housing 1 until the resilient receiving profile 8 is lined up with the groove 10 to secure correct axial placement and to reduce and in most cases prevent axial displacement.
The dimensioning of the cartridge 4 and the resilient receiving profile 8 can be chosen such that once installed the cartridge 4 causes the resilient receiving profile 8 to deflect towards the inner surface 1A of exhaust compartment housing 1 and thus presses the silica sealing rope 9 against inner surface 1A of exhaust compartment housing 1.

Claims (7)

ConclusiesConclusions 1. Een uitlaatgasnabehandelingssamenstel dat is geconfigureerd om samen te werken met een dieselverbrandingsmotor, welk samenstel omvat: - een uitlaatgascompartimentbehuizing (1); - een dieseldeeltjesfilter (2) en een dieseloxidatiekatalysator (3) beweegbaar aangebracht in de uitlaatgascompartimentbehuizing (1), waarbij het dieseldeeltjesfilter (2) en de dieseloxidatiekatalysator (3) cilindrische structuren zijn met cirkelvormige dwarsdoorsneden en axiaal naast elkaar geplaatst zijn op een onderling verbonden manier om een patroon (4) te vormen; - afstandsmiddelen (5) aangebracht tussen de patroon (4) en de uitlaatgascompartimentbehuizing (1); waarbij de afstandsmiddelen (5) een metalen persing (5A) omvatten met een vlak basisgedeelte (6) gepositioneerd tegen een binnenoppervlak (1A) van de uitlaatgascompartimentbehuizing (1), waarbij de metalen persing (5A) een aanslaggedeelte (7) omvat aan een eerste uiteinde van het vlakke basisgedeelte (6), waarbij het aanslaggedeelte (7) zich dwars uitstrekt vanaf het vlakke basisgedeelte (6) weg van het binnenoppervlak (1A) van de uitlaatgascompartimentbehuizing (1), met het kenmerk dat de metalen persing (5A) ringvormig is en het vlakke basisgedeelte (6) losjes gepositioneerd is tegen het binnenoppervlak (1A) van de uitlaatgascompartimentbehuizing (1), dat de metalen persing (5A) aan een tweede uiteinde van het vlakke basisgedeelte (6) tegenover het eerste uiteinde een veerkrachtig opneemprofiel (8) omvat dat is geconfigureerd voor het opnemen van een afdichtmiddel (9) dat direct contact maakt met het binnenoppervlak (1A) van de uitlaatgascompartimentbehuizing (1) en gepositioneerd is tussen het binnenoppervlak (1A ) van de uitlaatgascompartimentbehuizing (1) en het veerkrachtige opneemprofiel (8), en dat het afdichtmiddel (9) wordt gevormd door een gevlochten, ringvormig touw van temperatuurongevoelig materiaal.1. An exhaust aftertreatment assembly configured to cooperate with a diesel combustion engine, the assembly comprising: - an exhaust gas compartment housing (1); - a diesel particulate filter (2) and a diesel oxidation catalyst (3) movably disposed within the exhaust gas compartment housing (1), the diesel particulate filter (2) and the diesel oxidation catalyst (3) being cylindrical structures having circular cross-sections and being axially juxtaposed in an interconnected manner to form a cartridge (4); - spacers (5) disposed between the cartridge (4) and the exhaust gas compartment housing (1); wherein the spacer means (5) comprises a metal pressing (5A) having a flat base portion (6) positioned against an inner surface (1A) of the exhaust gas compartment housing (1), the metal pressing (5A) comprising a stop portion (7) at a first end of the flat base portion (6), the stop portion (7) extending transversely from the flat base portion (6) away from the inner surface (1A) of the exhaust gas compartment housing (1), characterised in that the metal pressing (5A) is annular and the flat base portion (6) is loosely positioned against the inner surface (1A) of the exhaust gas compartment housing (1), the metal pressing (5A) comprising at a second end of the flat base portion (6) opposite the first end a resilient receiving profile (8) configured to receive a sealant (9) directly contacting the inner surface (1A) of the exhaust gas compartment housing (1) and positioned between the inner surface (1A ) of the exhaust gas compartment housing (1) and the resilient receiving profile (8), and that the sealing means (9) is formed by a braided, ring-shaped rope of temperature-insensitive material. 2. Het uitlaatgasnabehandelingssamenstel volgens conclusie 1, waarbij het materiaal van het afdichtmiddel (9) anorganisch en onbrandbaar is.2. The exhaust aftertreatment assembly according to claim 1, wherein the material of the sealant (9) is inorganic and non-flammable. 3. Het uitlaatgasnabehandelingssamenstel volgens conclusie 1 of 2, waarbij het afdichtmiddel (9) is gevormd door silica-touwpakking.3. The exhaust aftertreatment assembly according to claim 1 or 2, wherein the sealing means (9) is formed by silica rope packing. 4. Het uitlaatgasnabehandelingssamenstel volgens een der voorgaande conclusies, waarbij de patroon (4) is voorzien van een groef (10) en het veerkrachtige opneemprofiel (8) in de groef (10) is gepositioneerd.4. The exhaust aftertreatment assembly according to any one of the preceding claims, wherein the cartridge (4) is provided with a groove (10) and the resilient receiving profile (8) is positioned in the groove (10). 5. Het uitlaatgasnabehandelingssamenstel volgens conclusie 4, waarbij de groef (10) is aangebracht in de dieseloxidatiekatalysator (3).5. The exhaust aftertreatment assembly according to claim 4, wherein the groove (10) is provided in the diesel oxidation catalyst (3). 6. Het uitlaatgasnabehandelingssamenstel volgens een der voorgaande conclusies, waarbij de metalen persing (5A) 1s samengesteld uit drie gelijke delen (5A1, 5A2, 5A3).6. The exhaust aftertreatment assembly according to any one of the preceding claims, wherein the metal pressing (5A) is composed of three equal parts (5A1, 5A2, 5A3). 7. Het uitlaatgasnabehandelingssamenstel volgens een der voorgaande conclusies, waarbij het dieseldeeltjesfilter (2) en de dieseloxidatiekatalysator (3) losneembaar met elkaar zijn verbonden.7. The exhaust aftertreatment assembly according to any one of the preceding claims, wherein the diesel particulate filter (2) and the diesel oxidation catalyst (3) are detachably connected to each other.
NL2034346A 2023-03-15 2023-03-15 An exhaust after treatment assembly. NL2034346B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL2034346A NL2034346B1 (en) 2023-03-15 2023-03-15 An exhaust after treatment assembly.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2034346A NL2034346B1 (en) 2023-03-15 2023-03-15 An exhaust after treatment assembly.

Publications (1)

Publication Number Publication Date
NL2034346B1 true NL2034346B1 (en) 2024-09-26

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NL2034346A NL2034346B1 (en) 2023-03-15 2023-03-15 An exhaust after treatment assembly.

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5094073A (en) * 1989-03-17 1992-03-10 J. Eberspacher Device for the catalytic cleaning or other treatment of internal combustion engine exhaust gases with two exhaust gas treating bodies and a protective ring between them
DE10114785A1 (en) * 2000-03-31 2001-10-25 Bayerische Motoren Werke Ag I.C. engine exhaust gas purification system has a housing with a honeycomb structured metal support matrix carrying a catalytic layer
US20050184522A1 (en) * 2000-06-23 2005-08-25 Breeze-Torca Products, Llc Clamp for joining tubular bodies
US20150240684A1 (en) * 2014-02-26 2015-08-27 Eberspächer Exhaust Technology GmbH & Co. KG Exhaust gas treatment device and corresponding method for manufacturing same
WO2017116329A1 (en) 2015-12-31 2017-07-06 Ford Otomotiv Sanayi A.Ş. Structurally improved exhaust treatment assembly and associated treatment components thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5094073A (en) * 1989-03-17 1992-03-10 J. Eberspacher Device for the catalytic cleaning or other treatment of internal combustion engine exhaust gases with two exhaust gas treating bodies and a protective ring between them
DE10114785A1 (en) * 2000-03-31 2001-10-25 Bayerische Motoren Werke Ag I.C. engine exhaust gas purification system has a housing with a honeycomb structured metal support matrix carrying a catalytic layer
US20050184522A1 (en) * 2000-06-23 2005-08-25 Breeze-Torca Products, Llc Clamp for joining tubular bodies
US20150240684A1 (en) * 2014-02-26 2015-08-27 Eberspächer Exhaust Technology GmbH & Co. KG Exhaust gas treatment device and corresponding method for manufacturing same
WO2017116329A1 (en) 2015-12-31 2017-07-06 Ford Otomotiv Sanayi A.Ş. Structurally improved exhaust treatment assembly and associated treatment components thereof

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