Global Patent Index - EP 1812166 A1

EP 1812166 A1 20070801 - METHOD AND FILTER ARRANGEMENT FOR REMOVING SOOT PARTICLES

Title (en)

METHOD AND FILTER ARRANGEMENT FOR REMOVING SOOT PARTICLES

Title (de)

VERFAHREN UND FILTERANORDNUNG ZUM ABSCHEIDEN VON RUSSPARTIKELN

Title (fr)

PROCEDE ET SYSTEME DE FILTRE DESTINE A EXTRAIRE DES PARTICULES DE SUIES

Publication

EP 1812166 A1 20070801 (DE)

Application

EP 05799131 A 20051104

Priority

  • AT 2005000432 W 20051104
  • AT 18662004 A 20041109

Abstract (en)

[origin: WO2006050546A1] The invention relates to a method and device for operating a filter arrangement for removing soot particles from a flow of exhaust gas. According to the invention, the flow of exhaust gas is led through channels (20) of a ceramic body (1), these channels being open on both sides and extending in a longitudinal direction of the ceramic body (1), and on electrodes (5, 6), which extend parallel to the channels (20), a voltage is applied to the ceramic body (1) in order to generate an electric field inside the channels (20) of the ceramic body (1), this electrical field being oriented transversal to the axis of the channels (20). Before introducing the flow of exhaust gas into the channels (20) of the ceramic body (1), the soot particles are charged with the aid of another electrode arrangement (29, 30). The invention provides that the voltage applied to the electrodes (5, 6) that are assigned to the ceramic body (1) consists of unipolar voltage pulses having a pulse duration of less than 20µs each time.

IPC 8 full level

B03C 3/68 (2006.01)

CPC (source: EP)

B03C 3/68 (2013.01)

Citation (search report)

See references of WO 2006050546A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2006050546 A1 20060518; AT 500959 A1 20060515; AT 500959 B1 20070515; EP 1812166 A1 20070801; US 2008017030 A1 20080124

DOCDB simple family (application)

AT 2005000432 W 20051104; AT 18662004 A 20041109; EP 05799131 A 20051104; US 66724705 A 20051104