公开(公告)号：US10563559B2

公开(公告)日：2020-02-18

申请号：US15770397

申请日：2016-10-06

申请人： MTU FRIEDRICHSHAFEN GMBH

发明人： Mathias Bauknecht ,  Michael Engelhardt ,  Boban Maletic ,  Samuel Vogel

IPC分类号： F01N13/18 ,  F01N13/00 ,  F01N3/20 ,  F01N3/28

摘要： An exhaust gas aftertreatment system with an exhaust gas inlet, at least two exhaust gas aftertreatment elements, and a flow chamber. The exhaust gas inlet, the at least two exhaust gas aftertreatment elements, and the flow chamber are arranged relative to one another and fluidically connected together such that exhaust gas flowing through the exhaust gas inlet into the flow chamber can be distributed to the at least two exhaust gas aftertreatment elements. The exhaust gas passes through at least one first of the at least two exhaust gas aftertreatment elements along a first flow direction, and the exhaust gas passes through at least one second of the at least two exhaust gas aftertreatment elements along a second flow direction, wherein the first flow direction and the second flow direction are oriented at least diagonally to each other, preferably anti-parallel to each other.

公开(公告)号：US10287959B2

公开(公告)日：2019-05-14

申请号：US15120319

申请日：2014-09-11

申请人： MTU FRIEDRICHSHAFEN GMBH

发明人： Boban Maletic ,  Gerald Fast ,  Jens Niemeyer ,  Tim Späder ,  Ralf Müller

IPC分类号： F01N11/00 ,  F01N3/10 ,  F01N9/00 ,  F01N3/023 ,  B01D46/00 ,  G01M15/10

摘要： A method for determining the aging of an oxidation catalyst in an exhaust gas aftertreatment system of an internal combustion engine, having the following steps: ascertaining a soot burn rate of a particle filter of the exhaust gas aftertreatment system; adapting a function having at least one adaptation parameter to the soot burn rate dependent on at least one variable, a value of the adaptation parameter depending on an aging of the oxidation catalyst; and determining the aging of the oxidation catalyst using the adaptation parameter value ascertained by adapting the function.