Global Patent Index - EP 1979066 A1

EP 1979066 A1 20081015 - A DIESEL SOOT PARTICULATE FILTER MEDIUM

Title (en)

A DIESEL SOOT PARTICULATE FILTER MEDIUM

Title (de)

DIESELRUSSPARTIKELFILTERMEDIUM

Title (fr)

PRODUIT FILTRANT DE PARTICULES DE SUIE DE DIESEL

Publication

EP 1979066 A1 20081015 (EN)

Application

EP 06818902 A 20061129

Priority

  • EP 2006011449 W 20061129
  • EP 06000279 A 20060109
  • EP 06818902 A 20061129

Abstract (en)

[origin: WO2007079829A1] A diesel soot particulate filter medium as subject of the present invention has an inflow side and an outflow side, and comprises at least n consecutive layers Lx of fiber media, x varying from 1 to n, n being more than 2. L1 provides the inflow side of the diesel soot particulate filter and Ln provides the outflow side of the diesel soot particulate filter medium. Each layer Lx has a porosity Px. All layers Lx, for which 1=x=n-1, have a substantially equal porosity to Ph, layer Ln having a porosity Ps, Ph being larger than Ps. Also according to the present invention, a diesel soot particulate filter medium comprises at least n consecutive layers Lx of fiber media, x varying between 1 and n, n being more than 3. L1 provides the inflow side of the diesel soot particulate filter and Ln provides the outflow side of the diesel soot particulate filter medium. For at least m layers LX<SUB>i</SUB>, 1=i=m, m being at least 1 and m being less than n/2, Lx<SUB>i</SUB> being different from Ln and LX<SUB>i</SUB> being different from L1 , PX<SUB>i</SUB> is smaller than its neighboring layers.

IPC 8 full level

B01D 39/20 (2006.01)

CPC (source: EP)

B01D 39/2041 (2013.01); B01D 39/2044 (2013.01); B01D 39/2051 (2013.01); B01D 2239/065 (2013.01); B01D 2275/30 (2013.01)

Citation (search report)

See references of WO 2007079829A1

Citation (examination)

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 2007079829 A1 20070719; CN 101360547 A 20090204; CN 101360547 B 20120912; EP 1979066 A1 20081015

DOCDB simple family (application)

EP 2006011449 W 20061129; CN 200680050522 A 20061129; EP 06818902 A 20061129