DE102020002566A1 - Catalyst - soot particle catcher made from woven metal mesh - Google Patents

Catalyst - soot particle catcher made from woven metal mesh Download PDF

Info

Publication number
DE102020002566A1
DE102020002566A1 DE102020002566.8A DE102020002566A DE102020002566A1 DE 102020002566 A1 DE102020002566 A1 DE 102020002566A1 DE 102020002566 A DE102020002566 A DE 102020002566A DE 102020002566 A1 DE102020002566 A1 DE 102020002566A1
Authority
DE
Germany
Prior art keywords
plates
soot particle
catalyst
catalytic
nets
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.)
Withdrawn
Application number
DE102020002566.8A
Other languages
German (de)
Inventor
Oleg Rak
Alexander Paperny
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE102020002566.8A priority Critical patent/DE102020002566A1/en
Publication of DE102020002566A1 publication Critical patent/DE102020002566A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/10—Filter screens essentially made of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/58—Fabrics or filaments
    • 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
    • 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
    • F01N3/033—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 in combination with other devices
    • F01N3/035—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 in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0613—Woven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/069—Special geometry of layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1216—Pore size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
    • 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
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/12—Metallic wire mesh fabric or knitting

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

Katalysator-Rußpartikelfänger aus Metallnetzen besteht aus einem Gehäuse und senkrecht zur Strömungsrichtung der eintretenden Verbrennungsprodukte angeordneten Platten, die in einem Abstand voneinander angebracht sind und einen umlaufenden Schlitz aufweisen. Dabei ist der Schlitz bei jeder nachfolgenden Platte auf der gegenüberliegenden Seite der Platte angebracht, so dass die Schlitze in den Platten zusammen mit dem Abstand zwischen den Platten einen gewundenen Kanal für den Durchfluss der Verbrennungsprodukte bilden.Catalyst soot particle catcher made of metal mesh consists of a housing and plates which are arranged perpendicular to the flow direction of the incoming combustion products, are spaced apart from one another and have a circumferential slot. The slot is made on the opposite side of the plate for each subsequent plate, so that the slots in the plates together with the distance between the plates form a winding channel for the flow of the combustion products.

Description

Die Erfindung wird den Abgas-Rußfilterkatalysatoren zugeordnet, die Verwendung in Dieselmotoren finden.The invention is assigned to the exhaust soot filter catalytic converters which are used in diesel engines.

Gegenwärtig werden vielfach Katalysatoren-Rußpartikelfänger aus perforierter poröser Keramik eingesetzt, s. - Prototyp 1.At the moment, soot particle traps made of perforated porous ceramic are widely used, see Sect. - prototype 1 .

Ein Keramik-Rußfilterkatalysator funktioniert wie folgt:

  • Abgase mit CO, NOx und Rußpartikeln (unverbrannter Kohlenstoff C von 0 bis 0,4 mm) gelangen in die Eintrittskanäle 1 ( ). Die Ausgänge der Eintrittskanäle sind verschlossen, deshalb gelangen die Abgase in die Austrittskanäle 2 ( ) über die porösen Keramikwände. Dies geschieht aufgrund der Tatsache, dass der Druck an den Eintrittskanälen größer ist als der an den Austrittskanälen 2 ( ). Beim Durchdringen der porösen Wände der Eintrittskanäle 1 ( ) kommt es beim Eintritt in deren Wandporen zur Ablagerung von Rußpartikeln.
A ceramic soot filter catalyst works as follows:
  • Exhaust gases with CO, NOx and soot particles (unburned carbon C from 0 to 0.4 mm) get into the inlet ducts 1 ( ). The outlets of the inlet channels are closed, so the exhaust gases get into the outlet channels 2 ( ) over the porous ceramic walls. This happens due to the fact that the pressure on the inlet channels is greater than that on the outlet channels 2 ( ). When penetrating the porous walls of the entry channels 1 ( ) soot particles are deposited when they enter their wall pores.

Die Oberflächen der Eintritts- 1 ( ) und Austrittskanäle 2 ( ) sind mit einer katalytischen Beschichtung versehen, die Radium, Platin usw. enthält und eine Niedertemperatur-Oxidation (T = 400 ° C - 650 ° C) von CO zu CO2 sowie eine Reduktion von NOx zu N2 ermöglicht. Somit finden sich an den Ausgängen der Austrittskanäle 2 ( ) CO2, N2 und H2O; Rußpartikel (C) jedoch sammeln sich in den Kanalporen.The surfaces of the entrance 1 ( ) and outlet ducts 2 ( ) are provided with a catalytic coating that contains radium, platinum, etc. and enables low-temperature oxidation (T = 400 ° C - 650 ° C) from CO to CO 2 and a reduction of NO x to N 2. Thus, there are outlet channels at the exits 2 ( ) CO 2 , N2 and H 2 O; Soot particles (C), however, collect in the channel pores.

Derartige Keramik-Rußfilterkatalysatoren haben folgende Nachteile:

  1. 1. Mit zunehmender Verstopfung der Kanalwandporen durch Rußpartikel steigt auch der hydraulische Widerstand des Katalysators, was zu seinem Ausfall führt.
  2. 2. Zerbrechlichkeit des Keramikblocks.
Such ceramic soot filter catalysts have the following disadvantages:
  1. 1. As the channel wall pores become increasingly clogged by soot particles, the hydraulic resistance of the catalytic converter also increases, which leads to its failure.
  2. 2. Fragility of the ceramic block.

Der Prototyp 2 stellt einen Katalysator aus Metallnetzen dar (Abb. 2)The prototype 2 represents a catalyst made of metal meshes (Fig. 2)

Der Katalysator wird folgendermaßen hergestellt:

  • Ein gewebtes Netz und ein durchgehendes Blech werden zu einem Zylinder zusammengerollt. Die aufgerauten Wände der Eintritts- und Austrittskanäle stellen für die durchströmenden Rußpartikel ein Hindernis dar. Die Oberflächen der Kanäle werden - wie auch beim Prototyp 1 ( ) - mit einer katalytischen Beschichtung versehen. Der Vorteil eines Metall-Katalysators ( ) gegenüber einem Keramik-Katalysator ( ) ist seine erhöhte Vibrationsfestigkeit.
The catalyst is made as follows:
  • A woven net and a continuous sheet of metal are rolled up to form a cylinder. The roughened walls of the inlet and outlet channels represent an obstacle for the soot particles flowing through. The surfaces of the channels are - as with the prototype 1 ( ) - provided with a catalytic coating. The advantage of a metal catalyst ( ) compared to a ceramic catalytic converter ( ) is its increased vibration resistance.

Der Nachteil besteht ebenfalls darin, dass mit zunehmender Verstopfung der Kanäle durch Rußpartikel der Widerstand zunimmt und der Katalysator ausfällt.Another disadvantage is that as the channels become clogged by soot particles, the resistance increases and the catalytic converter fails.

Als dritter Prototyp dient ein Metall-Rußpartikelfänger ( ).A metal soot particle trap serves as the third prototype ( ).

Der Rußpartikelfänger besteht aus aufgerauten Platten 1 und 2 ( ), die senkrecht zum Luftstrom und Gehäuse 3 angeordnet sind. Zwischen den Platten 1, 2 und dem Gehäuse 3 befindet sich ein Spalt, der die maximale Rußpartikelgröße übersteigt (größer als 5 mm). Die Platten 1 und 2 sind schachbrettartig so angeordnet, dass zwischen den Platten 1, 2 und dem Gehäuse 3 ein gewundener Kanal entsteht. Die Rußpartikel setzen sich auf der rauen Oberfläche der Platten 1 und 2 ab ( ). Der Vorteil dieser Konstruktion besteht darin, dass mit zunehmender Verstopfung durch Ruß der hydraulische Widerstand nur leicht ansteigt, da der Abstand zwischen den Platten 1, 2 und dem Gehäuse 3 groß genug ist.The soot particle trap consists of roughened plates 1 and 2 ( ) that are perpendicular to the airflow and housing 3 are arranged. Between the plates 1 , 2 and the case 3 there is a gap that exceeds the maximum soot particle size (larger than 5 mm). The plates 1 and 2 are arranged like a chessboard so that between the plates 1 , 2 and the case 3 a winding canal is created. The soot particles settle on the rough surface of the plates 1 and 2 away ( ). The advantage of this construction is that with increasing clogging by soot, the hydraulic resistance only increases slightly because of the distance between the plates 1 , 2 and the case 3 is big enough.

In der vorliegenden Erfindung wurden die Platten 1 und 2 ( ) aus gewebten Metallnetzen mit einer Maschengröße von 1 - 5 mm angefertigt, um die Filtrationseigenschaften der senkrecht zum Eintritt strömenden Gase zu verbessern.In the present invention, the panels were 1 and 2 ( ) made of woven metal nets with a mesh size of 1 - 5 mm in order to improve the filtration properties of the gases flowing perpendicular to the inlet.

Die Netze 1 und 2 ( ) befinden sich in einem Abstand von über 5 mm und bilden einen Kanal. Entlang des Randes der Netze 1 und 2 wurden Schlitze von mehr als 5 mm angebracht. Die Netze 1 und 2 wurden so montiert, dass das Gas in einen gewundenen Kanal gelenkt wird. Der Gasdruck in den nachfolgenden Kanälen entlang der Wände ist geringer als in den vorherigen Kanälen, wodurch eine Rußfilterung durch Netzmaschen gewährleistet wird. Die ersten Netze entlang der Bewegung des Gas-Luft-Gemisches haben die größte Maschengröße von bis zu 5 mm, wodurch die größten Rußpartikel aufgefangen werden. Die letzten Netze haben kleinere Maschen von bis zu 1 mm für eine präzisere Reinigung. Auf die Netzoberfläche wurde eine Keramikbeschichtung mit katalytischen Additiven aufgebracht. Zusätzlich zu den katalytischen Eigenschaften verbessert diese Beschichtung die Warmfestigkeit der Netze. Die Überlegenheit der vorliegenden Konstruktion gegenüber den Prototypen 1 ( ) und 2 ( ) besteht darin, dass mit zunehmender Maschenverstopfung der Netze 1, 2 ( ) durch Rußpartikel der hydraulische Widerstand nur unwesentlich ansteigt, da sich in den Netzen umlaufende Schlitze von 5 mm befinden und die Netze im Abstand von bis zu 5 mm angebracht wurden. Die Haltbarkeit wird nur geringfügig beeinträchtigt, der Katalysator-Rußpartikelfänger bleibt betriebsbereit.The networks 1 and 2 ( ) are at a distance of more than 5 mm and form a channel. Along the edge of the nets 1 and 2 slots of more than 5 mm were made. The networks 1 and 2 were mounted in such a way that the gas is directed into a winding channel. The gas pressure in the subsequent ducts along the walls is lower than in the previous ducts, which ensures that soot is filtered through mesh. The first nets along the movement of the gas-air mixture have the largest mesh size of up to 5 mm, which traps the largest soot particles. The last nets have smaller meshes of up to 1 mm for more precise cleaning. A ceramic coating with catalytic additives was applied to the surface of the mesh. In addition to the catalytic properties, this coating improves the heat resistance of the nets. The superiority of the present construction over the prototypes 1 ( ) and 2 ( ) is that with increasing clogging of the meshes of the nets 1 , 2 ( ) due to soot particles, the hydraulic resistance increases only insignificantly, as there are 5 mm slots around the nets and the nets are attached at a distance of up to 5 mm. The service life is only slightly impaired, the catalyst soot particle trap remains operational.

Kurzfassungshort version

Katalysator-Rußpartikelfänger aus gewebten MetallnetzenCatalyst soot particle catcher made from woven metal mesh

Die Erfindung ist auf dem Gebiet der Abgas-Rußfilterkatalysatoren von Dieselmotoren angesiedelt.The invention is located in the field of exhaust gas soot filter catalytic converters for diesel engines.

Ziele der Erfindung:

  • - Erhöhung der Lebensdauer unter Vibrationsbeanspruchung
  • - Verbesserung der Filtrations- und katalytischen Eigenschaften.
Objectives of the invention:
  • - Increase in service life under vibration stress
  • - Improvement of the filtration and catalytic properties.

Diese Ziele werden dadurch erreicht, dass sich der hydraulische Widerstand des Katalysators beim Zusetzen der Filterelemente durch Ruß nur unwesentlich verändert infolge einer geringfügigen Änderung seines Durchflußquerschnitts.These goals are achieved in that the hydraulic resistance of the catalytic converter changes only insignificantly when the filter elements are clogged by soot as a result of a slight change in its flow cross-section.

Literaturverzeichnisbibliography

  1. 1. Abgas-Rußpartikelfilter eines Dieselmotors Patent RF 25081541. Exhaust soot particle filter of a diesel engine, patent RF 2508154
  2. 2. Katalysatoreinheit EBPO4ES430802. Catalyst unit EBPO4ES43080
  3. 3. Rußpartikelabscheider SU 1508968 A3 02.04.85 3. Soot particle separator SU 1508968 A3 04/02/85

  1. 1 - Eintrittskanäle1 - entry channels
  2. 2 - Austrittskanäle2 - outlet channels
  3. 3 - poröse Keramikwände3 - porous ceramic walls
  4. 4 - Verschlüsse der Gas-Eintrittskanäle4 - Closures of the gas inlet channels
  5. 5 - Verschlüsse der Gas-Austrittskanäle5 - Closures of the gas outlet channels
  6. 6 - katalytische Beschichtung der Wände der Eintritts- und Austrittskanäle6 - catalytic coating of the walls of the inlet and outlet channels

Gaseintritt A-A gedreht Gasaustritt 1 - Blech

  • 2 - Formnetz
  • 3 - Kanäle
Gas inlet AA rotated Gas outlet 1 - sheet metal
  • 2 - shape mesh
  • 3 - channels

  • 1 - aufgeraute Metallplatten1 - roughened metal plates
  • 2 - Öffnungen in Platten (schachbrettartige Anordnung)2 - openings in panels (checkerboard-like arrangement)
  • 3 - Gehäuse3 - housing
  • → - Gasstromrichtung→ - Direction of gas flow

  • 1 - gewebte Metallnetze1 - woven metal nets
  • 2 - Öffnungen in Netzen (schachbrettartige Anordnung)2 - openings in nets (checkerboard arrangement)
  • 3 - katalytische Beschichtung3 - catalytic coating
  • 4 - Gehäuse4 - housing
  • → - Gasstrom richtung→ - Direction of gas flow

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturPatent literature cited

  • SU 1508968 A3 [0014]SU 1508968 A3 [0014]

Claims (2)

Katalysator-Rußpartikelfänger aus Metallnetzen besteht aus einem Gehäuse und senkrecht zur Strömungsrichtung der eintretenden Verbrennungsprodukte angeordneten Platten, die in einem Abstand voneinander angebracht sind und einen umlaufenden Schlitz aufweisen. Dabei ist der Schlitz bei jeder nachfolgenden Platte auf der gegenüberliegenden Seite der Platte angebracht, so dass die Schlitze in den Platten zusammen mit dem Abstand zwischen den Platten einen gewundenen Kanal für den Durchfluss der Verbrennungsprodukte bilden.Catalyst soot particle trap made of metal mesh consists of a housing and plates arranged perpendicular to the flow direction of the incoming combustion products, which are attached at a distance from one another and have a circumferential slot. The slot is made on the opposite side of the plate for each subsequent plate, so that the slots in the plates together with the distance between the plates form a winding channel for the flow of the combustion products. Die Erfindung zeichnet sich dadurch aus, dass - zwecks Erhöhung der Lebensdauer unter Vibrationsbeanspruchung, Verbesserung der Filtrationseigenschaften des Rußpartikelfängers sowie der katalytischen Eigenschaften die Anfertigung der Platten aus gewebten Metallnetzen mit einer Maschenweite von 1 bis 5 mm erfolgte, mit einer aufgebrachten verstärkenden Oberflächenkeramikbeschichtung, einer katalytischen Metallbeschichtung und einer abnehmenden Maschenweite der Netze vom Eingang des Katalysators bis zu seinem Ausgang.The invention is characterized in that - In order to increase the service life under vibration stress, improve the filtration properties of the soot particle trap and the catalytic properties, the plates were made of woven metal nets with a mesh size of 1 to 5 mm, with an applied reinforcing ceramic surface coating, a catalytic metal coating and a decreasing mesh size of the nets from Entrance of the catalytic converter to its exit.
DE102020002566.8A 2020-04-28 2020-04-28 Catalyst - soot particle catcher made from woven metal mesh Withdrawn DE102020002566A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102020002566.8A DE102020002566A1 (en) 2020-04-28 2020-04-28 Catalyst - soot particle catcher made from woven metal mesh

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020002566.8A DE102020002566A1 (en) 2020-04-28 2020-04-28 Catalyst - soot particle catcher made from woven metal mesh

Publications (1)

Publication Number Publication Date
DE102020002566A1 true DE102020002566A1 (en) 2021-10-28

Family

ID=78261013

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102020002566.8A Withdrawn DE102020002566A1 (en) 2020-04-28 2020-04-28 Catalyst - soot particle catcher made from woven metal mesh

Country Status (1)

Country Link
DE (1) DE102020002566A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1508968A3 (en) 1985-04-02 1989-09-15 Штейр-Даймлер-Пух Аг (Фирма) Device for separating hydrocarbon particles from exhaust gases of air-compression and self-ignition i.c. engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1508968A3 (en) 1985-04-02 1989-09-15 Штейр-Даймлер-Пух Аг (Фирма) Device for separating hydrocarbon particles from exhaust gases of air-compression and self-ignition i.c. engine

Similar Documents

Publication Publication Date Title
DE102014004712B4 (en) Wall flow type exhaust gas purification filter
DE102016010594A1 (en) Locked honeycomb structure and closed honeycomb segment
EP3134622B1 (en) Model kit and method of production for a catalyst assembly
DE102016111766A1 (en) CATALYTIC WALL CURRENT FILTER WITH A MEMBRANE
DE102016010596A1 (en) Locked honeycomb structure and closed honeycomb segment
EP1179125A1 (en) Method for reducing harmful components in the exhaust gas of an internal combustion engine, especially a diesel-internal combustion engine
DE102017008765A1 (en) Locked honeycomb structure
DE102016013084A1 (en) Locked honeycomb structure
DE60212245T2 (en) Method and device for removing soot particles from the exhaust gas of a diesel engine
DE102020002566A1 (en) Catalyst - soot particle catcher made from woven metal mesh
EP1882090A1 (en) Exhaust system with two exhaust treatment units
DE4207005C2 (en) Exhaust gas cleaner
EP1879682A1 (en) Filter device, especially soot particle filter, for an exhaust system of an internal combustion engine
DE102009045742A1 (en) Device for cooling an exhaust gas flow emerging from a soot particle filter
DE102007042821A1 (en) Emission control device for internal combustion engine i.e. diesel engine of motor vehicle, has temperature measuring device arranged in notch formed in front side of particle filter by short filter segments
DE102016122070A1 (en) CATALYZED PARTICLE FILTER
DE102004004042B9 (en) An exhaust gas purification arrangement and method for producing an exhaust gas purification arrangement
DE202023104832U1 (en) Single room fireplace with a combustion chamber arrangement
DE102019211883A1 (en) Exhaust aftertreatment system for an internal combustion engine of a motor vehicle
DE102007063100A1 (en) Exhaust gas aftertreatment device for internal combustion engine, has filter elements, where storage capacity for soot particles of one of filter elements is larger or equal to storage capacity of another filter element
DE202013002596U1 (en) aftertreatment system
DE2600852C2 (en) Soundproofing element
DE602004003975T2 (en) CONVERTER FOR EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES
DE102018207831A1 (en) Emission control system for an internal combustion engine
DE202020101888U1 (en) Emission reduction arrangement

Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee