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1. WO2004104387 - METHOD FOR CLEANING A PARTICLE FILTER

Publication Number WO/2004/104387
Publication Date 02.12.2004
International Application No. PCT/EP2004/004865
International Filing Date 07.05.2004
IPC
B01D 46/04 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
46Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
04Cleaning filters
F01N 3/023 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
023using means for regenerating the filters, e.g. by burning trapped particles
F01N 3/029 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
023using means for regenerating the filters, e.g. by burning trapped particles
029by adding non-fuel substances to exhaust
F01N 3/035 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
033in combination with other devices
035with catalytic reactors
CPC
B01D 2279/30
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2279Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
30for treatment of exhaust gases from IC Engines
B01D 46/10
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
46Filters ; , i.e. particle separators; or filtering processes specially modified for separating dispersed particles from gases or vapours
10Particle separators, e.g. dust precipitators, using filter plates, sheets, or pads having plane surfaces ; , i.e. axial filtering
B01D 46/70
B01D 46/80
F01N 3/023
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
023using means for regenerating the filters, e.g. by burning trapped particles
F01N 3/0233
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
023using means for regenerating the filters, e.g. by burning trapped particles
0233periodically cleaning filter by blowing a gas through the filter in a direction opposite to exhaust flow, e.g. exposing filter to engine air intake
Applicants
  • PUREM ABGASSYSTEME GMBH & CO. KG [DE]/[DE] (AllExceptUS)
  • BACH, Bastian [DE]/[DE] (UsOnly)
  • DITTLER, Achim [DE]/[DE] (UsOnly)
  • HIMMEN, Michael [DE]/[DE] (UsOnly)
  • KRUTZSCH, Bernd [DE]/[DE] (UsOnly)
  • NEUMANN, Peter [DE]/[DE] (UsOnly)
  • SCHMIDT, Eberhard [DE]/[DE] (UsOnly)
  • SONNENBERG, Jost-Peter [DE]/[DE] (UsOnly)
  • WENNINGER, Günter [DE]/[DE] (UsOnly)
Inventors
  • BACH, Bastian
  • DITTLER, Achim
  • HIMMEN, Michael
  • KRUTZSCH, Bernd
  • NEUMANN, Peter
  • SCHMIDT, Eberhard
  • SONNENBERG, Jost-Peter
  • WENNINGER, Günter
Agents
  • KOCHER, Klaus-Peter
Priority Data
103 23 735.624.05.2003DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR REINIGUNG EINES PARTIKELFILTERS
(EN) METHOD FOR CLEANING A PARTICLE FILTER
(FR) PROCEDE DE NETTOYAGE D'UN FILTRE A PARTICULES
Abstract
(DE) Die Erfindung betrifft ein Verfahren zum Reinigung eines Partikelfilters (1) mit folgenden Verfahrensschritten: - eine schadstoff- und/oder partikelbeladene Gasströmung wird einem katalytisch und/oder filtertechnisch wirksamen Partikelfilter (1) zugeführt, - Schadstoffe und/oder Partikel werden im Partikelfilter (1) chemisch umgesetzt und/oder gespeichert, wobei Filtrat- oder Aschepartikel (2) entstehen und/oder an dem Partikelfilter (1) angelagert werden. Nach Erreichen einer bestimmten Gebrauchsdauer des Partikelfilters (1) wird eine Schicht (3,4) in Filtrationsrichtung zur Erhöhung des Durchströmungswiderstandes auf der Filtrat- oder Aschepartikelschicht (2) aufgebracht.
(EN) The invention relates to a method for cleaning a particle filter (1), comprising the following steps: a gaseous stream charged with pollutants and/or particles is fed to a particle filter (1) that operates catalytically and/or by filtration; the pollutants and/or particles are chemically converted or stored in the particle filter (1), whereby filtrate or ash particles (2) are produced and/or are deposited on the particle filter (1). Once the particle filter (1) has been used for a specific period of time, a layer (3,4) is applied to the filtrate or ash particle layer (2) in the filtration direction to increase the flow resistance.
(FR) Procédé de nettoyage d'un filtre (1) à particules selon lequel un flux de gaz chargé de substances toxiques et / ou de particules est introduit dans un filtre (1) à particules fonctionnant de manière catalytique et / ou par filtrage, et selon lequel les substances toxiques et / ou les particules subissent une conversion chimique et / ou sont accumulées dans le filtre à particules (1), des particules (2) de produits filtrés et / ou de cendre étant produites et / ou se fixant sur le filtre (1) à particules. Lorsqu'une durée d'utilisation déterminée du filtre (1) à particules a été atteinte, une couche (3, 4) est appliquée sur la couche de particules (2) de produits filtrés ou de cendre, dans le sens de filtrage, pour augmenter la résistance à l'écoulement.
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US2007175183This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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