Global Patent Index - EP 3303786 A1

EP 3303786 A1 20180411 - MIXER IN AN EXHAUST GAS SYSTEM

Title (en)

MIXER IN AN EXHAUST GAS SYSTEM

Title (de)

MISCHER IN EINEM ABGASSYSTEM

Title (fr)

MÉLANGEUR DANS UN SYSTÈME D'ÉCHAPPEMENT

Publication

EP 3303786 A1 20180411 (DE)

Application

EP 16726854 A 20160530

Priority

  • DE 102015108655 A 20150601
  • EP 2016062180 W 20160530

Abstract (en)

[origin: WO2016193221A1] The invention relates to a static mixer (1) for use in an exhaust gas system of an internal combustion engine, and for mixing an additive injected into an exhaust gas system. The mixer (1) consists of a tubular housing (2) that is circumferential around a central axis X. The housing (2) has, at one end in the direction of the central axis X, an inlet opening (31) and, at the opposite end, an outlet opening (32), wherein the inlet opening (31) serves to receive additive injected into the exhaust gas system. The housing (2) is closed in the circumferential direction about the central axis X, in the region of the inlet opening (31) and in the region of the outlet opening (32), by a rim. The static mixer (1) is designed to generate little back-pressure, to ensure rapid and complete reductant preparation, and simultaneously not to be sensitive with respect to manufacturing tolerances. To that end, the housing (2) forms, relative to an XY plane oriented parallel to the central axis X of the mixer (1) and perpendicular to a main flow direction S, a tubular segment (21) upstream of the XY plane, having multiple openings (4) oriented in the radial direction with respect to the central axis X as a perforation, and forms, downstream of the XY plane, a tubular segment (22) having a cutout (5) in which there are arranged multiple baffles (51).

IPC 8 full level

F01N 3/20 (2006.01); F01N 3/28 (2006.01)

CPC (source: CN EP US)

F01N 3/2066 (2013.01 - CN EP US); F01N 3/2892 (2013.01 - CN EP US); F01N 2240/20 (2013.01 - CN EP US); F01N 2470/04 (2013.01 - CN EP US); F01N 2470/18 (2013.01 - CN EP US); F01N 2610/00 (2013.01 - US); F01N 2610/02 (2013.01 - CN EP US); Y02T 10/12 (2013.01 - EP US)

Citation (search report)

See references of WO 2016193221A1

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)

DE 102015108655 A1 20161201; DE 102015108655 B4 20170713; CN 107709718 A 20180216; CN 107709718 B 20190910; EP 3303786 A1 20180411; US 10480372 B2 20191119; US 2018156092 A1 20180607; WO 2016193221 A1 20161208

DOCDB simple family (application)

DE 102015108655 A 20150601; CN 201680030942 A 20160530; EP 16726854 A 20160530; EP 2016062180 W 20160530; US 201615578564 A 20160530