EXHAUST GAS FILTER - DENSO CORP

Title:

EXHAUST GAS FILTER

Document Type and Number:

WIPO Patent Application WO/2016/111287

Kind Code:

A1

Abstract:

An exhaust gas filter (1) for purifying exhaust gas containing particulate matter discharged from an internal combustion engine has a plurality of cell walls (2) and a plurality of cell holes (3) enclosed by the cell walls (2). Pores through which adjacent cell holes (3) communicate are formed in the cell walls (2), and the cell holes (3) comprise open cell holes (31) running through the exhaust gas filter (1) in an axial direction (X), and stopped cell holes (32) provided with stoppers (321) for closing up the upstream-side ends. In a cross section orthogonal to the axial direction (X), the flow channel cross-sectional area (S2) in the stopped cell holes (32) is greater than the flow channel cross-sectional area (S1) in the open cell holes (31). The total length (L) of the exhaust gas filter (1) is equal to or greater than a first reference value (L1) calculated by a prescribed formula, and equal to or less than a critical length (Lm) calculated by a prescribed formula.

Inventors:

NIWA HIRONORI (JP)
YAMAMURA SYUSAKU (JP)
ISHIHARA MIKIO (JP)
MISHIMA TAKAO (JP)
NAKATA SHINGO (JP)
FUJII HIROAKI (JP)
YAMAKOSHI KOUTA (JP)
MIYASHITA AKIRA (JP)

Application Number:

PCT/JP2016/050113

Publication Date:

July 14, 2016

Filing Date:

January 05, 2016

Export Citation:

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Assignee:

DENSO CORP (JP)

International Classes:

F01N3/022; B01D39/20; B01D46/00

Domestic Patent References:

WO2008026675A1

2008-03-06

Foreign References:

JP2003236322A	2003-08-26
JP2011522694A	2011-08-04
JP2014057951A	2014-04-03
JP2010247145A	2010-11-04

Attorney, Agent or Firm:

KIKUCHI, YASUHIRO (JP)
Yasuhiro Kikuchi (JP)

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