公开(公告)号：US20110225952A1

公开(公告)日：2011-09-22

申请号：US13070650

申请日：2011-03-24

Applicant: OLAF WITTE-MERL ,  JAN HODGSON ,  ROLF BRÜCK

Inventor： OLAF WITTE-MERL ,  JAN HODGSON ,  ROLF BRÜCK

IPC: F01N3/18 ,  F01N3/10

CPC classification number: F01N3/2066 ,  F01N3/035 ,  F01N3/28 ,  F01N2240/40 ,  F01N2610/02 ,  F01N2610/1453 ,  Y02T10/24

Abstract: A configuration for purification of an exhaust gas flow of an internal combustion engine includes at least one exhaust gas line having an element for exhaust gas purification with a first end face and a second end face. The exhaust gas flows through the element from the first end face to the second end face. An adding device is provided downstream of the element for adding a reactant to the exhaust gas flow. The adding device is positioned at a distance of no more than 30 mm from the second end face of the element in such a way that at least part of the added reactant strikes the second end face of the element. A method for adding a reactant into an exhaust line during the operation of an internal combustion engine is also provided.

Abstract translation: 用于净化内燃机的废气流的构造包括至少一个废气管线，其具有用于排气净化的元件，其具有第一端面和第二端面。 废气从第一端面流到第二端面。 在元件的下游设置有用于向废气流中添加反应物的添加装置。 添加装置与元件的第二端面距离不超过30mm的距离，使得至少部分添加的反应物撞击元件的第二端面。 还提供了在内燃机的操作期间将反应物添加到排气管线中的方法。

公开(公告)号：US08484950B2

公开(公告)日：2013-07-16

申请号：US13070650

申请日：2011-03-24

Applicant: Olaf Witte-Merl ,  Jan Hodgson ,  Rolf Brück

Inventor： Olaf Witte-Merl ,  Jan Hodgson ,  Rolf Brück

IPC: F01N3/00

CPC classification number: F01N3/2066 ,  F01N3/035 ,  F01N3/28 ,  F01N2240/40 ,  F01N2610/02 ,  F01N2610/1453 ,  Y02T10/24

Abstract: A configuration for purification of an exhaust gas flow of an internal combustion engine includes at least one exhaust gas line having an element for exhaust gas purification with a first end face and a second end face. The exhaust gas flows through the element from the first end face to the second end face. An adding device is provided downstream of the element for adding a reactant to the exhaust gas flow. The adding device is positioned at a distance of no more than 30 mm from the second end face of the element in such a way that at least part of the added reactant strikes the second end face of the element. A method for adding a reactant into an exhaust line during the operation of an internal combustion engine is also provided.

Abstract translation: 用于净化内燃机的废气流的构造包括至少一个废气管线，其具有用于排气净化的元件，其具有第一端面和第二端面。 废气从第一端面流到第二端面。 在元件的下游设置有用于向废气流中添加反应物的添加装置。 添加装置的位置距元件的第二端面不超过30mm的距离，使得至少部分添加的反应物撞击元件的第二端面。 还提供了在内燃机的操作期间将反应物添加到排气管线中的方法。

公开(公告)号：US20080041036A1

公开(公告)日：2008-02-21

申请号：US11841282

申请日：2007-08-20

Applicant: Olaf Witte-Merl

Inventor： Olaf Witte-Merl

IPC: F01N3/00

CPC classification number: F01N3/2066 ,  F01N2240/40 ,  F01N2510/06 ,  F01N2510/14 ,  F01N2610/02 ,  F01N2610/102 ,  F01N2610/1453 ,  Y02T10/24

Abstract: A method for adding at least one, in particular liquid, reactant, to an exhaust gas stream of an internal combustion engine includes adding a reactant flow to the stream downstream of an element provided for an at least partial conversion and/or at least partial elimination of at least one component of the stream, so that at least part of the reactant flow impinges on the element. This achieves rapid evaporation of the reactant flow. Impinging on the element, which is hot during operation, i.e. at temperatures of 400° C. and more, causes rapid evaporation and, because of a preferably porous coating of the element, take-up of the reactant solution into the element with successive evaporation. Urea, in particular, can be evaporated quickly, effectively and virtually completely upon introduction into an exhaust system as a reducing agent for selective catalytic reduction of nitrogen oxides, in particular in a downstream SCR catalytic converter.

Abstract translation: 将至少一种特别是液体的反应物添加到内燃机的废气流中的方法包括将反应物流加入到提供用于至少部分转化和/或至少部分消除的元素的下游的流中 的流的至少一个组分，使得至少一部分反应物流碰撞在元件上。 这实现了反应物流的快速蒸发。 在操作过程中即使在400℃以上的温度下发生的元素也会引起快速蒸发，并且由于该元件的优选多孔涂层，连续蒸发将反应物溶液吸收到元件中 。 尤其是在下游SCR催化转化器中，特别是在引入作为用于选择性催化还原氮氧化物的还原剂的排气系统中时，尿素可以被快速，有效和几乎完全蒸发。

公开(公告)号：US07849676B2

公开(公告)日：2010-12-14

申请号：US11841282

申请日：2007-08-20

Applicant: Olaf Witte-Merl

Inventor： Olaf Witte-Merl

IPC: F01N3/00

CPC classification number: F01N3/2066 ,  F01N2240/40 ,  F01N2510/06 ,  F01N2510/14 ,  F01N2610/02 ,  F01N2610/102 ,  F01N2610/1453 ,  Y02T10/24

Abstract: A method for adding at least one, in particular liquid, reactant, to an exhaust gas stream of an internal combustion engine includes adding a reactant flow to the stream downstream of an element provided for an at least partial conversion and/or at least partial elimination of at least one component of the stream, so that at least part of the reactant flow impinges on the element. This achieves rapid evaporation of the reactant flow. Impinging on the element, which is hot during operation, i.e. at temperatures of 400° C. and more, causes rapid evaporation and, because of a preferably porous coating of the element, take-up of the reactant solution into the element with successive evaporation. Urea, in particular, can be evaporated quickly, effectively and virtually completely upon introduction into an exhaust system as a reducing agent for selective catalytic reduction of nitrogen oxides, in particular in a downstream SCR catalytic converter.

Abstract translation: 将至少一种特别是液体的反应物添加到内燃机的废气流中的方法包括将反应物流加入到提供用于至少部分转化和/或至少部分消除的元素的下游的流中 的流的至少一个组分，使得至少一部分反应物流碰撞在元件上。 这实现了反应物流的快速蒸发。 在操作过程中即使在400℃以上的温度下发生的元素也会引起快速蒸发，并且由于该元件的优选多孔涂层，连续蒸发将反应物溶液吸收到元件中 。 尤其是在下游SCR催化转化器中，特别是在引入作为用于选择性催化还原氮氧化物的还原剂的排气系统中时，尿素可以被快速，有效和几乎完全蒸发。