Global Patent Index - EP 3670857 A1

EP 3670857 A1 20200624 - EFFICIENT MIXING OF GASES IN AN EXHAUST AFTERTREATMENT SYSTEM

Title (en)

EFFICIENT MIXING OF GASES IN AN EXHAUST AFTERTREATMENT SYSTEM

Title (de)

EFFIZIENTES MISCHEN VON GASEN IN EINEM ABGASNACHBEHANDLUNGSSYSTEM

Title (fr)

MÉLANGE EFFICACE DE GAZ DANS UN SYSTÈME POST-TRAITEMENT D'ÉCHAPPEMENT

Publication

EP 3670857 A1 20200624 (EN)

Application

EP 18214589 A 20181220

Priority

EP 18214589 A 20181220

Abstract (en)

In an exhaust aftertreatment system (110), an inlet (136) for a selective catalytic reduction (SCR) device (120) having SCR catalysts (132, 134) arranged in tandem within a housing (126). The inlet (136) includes a tube (138) extending in an axial direction and offset from the longitudinal axis A of the circular or oval cross section housing (126) of the SCR device (120). A scroll section (146), integral with tube (138), provides an opening (148) which imparts a tangential swirl direction to the gas and DEF mixture entering the SCR device (120).

IPC 8 full level

F01N 3/20 (2006.01); B01F 5/00 (2006.01); F01N 3/28 (2006.01); F01N 13/00 (2010.01)

CPC (source: EP)

F01N 3/2066 (2013.01); F01N 3/2892 (2013.01); F01N 13/0093 (2014.06); F01N 13/0097 (2014.06); F01N 2240/20 (2013.01); F01N 2470/18 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3670857 A1 20200624; EP 3670857 B1 20220831

DOCDB simple family (application)

EP 18214589 A 20181220