公开(公告)号：US20080250779A1

公开(公告)日：2008-10-16

申请号：US11872121

申请日：2007-10-15

申请人： Rolf Bruck ,  Peter Hirth ,  Ulf Klein ,  Wolfgang Held

发明人： Rolf Bruck ,  Peter Hirth ,  Ulf Klein ,  Wolfgang Held

IPC分类号： B01D53/56 ,  F01N3/10 ,  B01D53/94

CPC分类号： F01N3/2066 ,  B01D53/56 ,  B01D53/79 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2251/2067 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/12 ,  Y02T10/24

摘要： A device for exhaust gas treatment includes an exhaust gas line through which an exhaust gas can flow in a flow direction, a supply for feeding a reducing agent into the exhaust gas line, a regulating unit for dosing the reducing agent to be supplied, and a carrier body for bringing about a chemical reaction of the reducing agent with at least one constituent of the exhaust gas. The carrier body is positioned downstream of the supply in the flow direction, and the carrier body has at least one metallic base body at least partially including a coating with a storage capability for the reducing agent. Two methods for the dosed provision of a reducing agent, especially a solid reducing agent, are also provided. The methods and device allow economical use of the reducing agent while guaranteeing an approximately 100% reaction of the nitrogen oxides contained in the exhaust gas.

摘要翻译： 废气处理装置包括废气可以沿流动方向流动的废气管线，用于将还原剂供给到废气管线中的供给源，用于对待供给的还原剂进行计量的调节单元，以及 载体体，用于使还原剂与废气的至少一种成分发生化学反应。 载体主体位于流动方向上的供给下游，载体主体具有至少一个金属基体，至少部分地包括具有用于还原剂的储存能力的涂层。 还提供了用于定量提供还原剂，特别是固体还原剂的两种方法。 所述方法和装置允许经济地使用还原剂，同时保证废气中所含的氮氧化物的大约100％的反应。

公开(公告)号：US20080102010A1

公开(公告)日：2008-05-01

申请号：US11949315

申请日：2007-12-03

申请人： Rolf Bruck ,  Peter Hirth ,  Wolfgang Held ,  Eberhard Jacob ,  Ulf Klein

发明人： Rolf Bruck ,  Peter Hirth ,  Wolfgang Held ,  Eberhard Jacob ,  Ulf Klein

IPC分类号： B01D53/56 ,  F01N9/00

CPC分类号： F01N3/0231 ,  B01D53/90 ,  B01D53/9431 ,  F01N3/027 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/103 ,  F01N3/2066 ,  F01N3/2892 ,  F01N3/32 ,  F01N13/009 ,  F01N13/0097 ,  F01N13/011 ,  F01N2240/25 ,  F01N2240/28 ,  F01N2240/30 ,  F01N2510/0684 ,  F01N2610/02 ,  F02M26/36 ,  Y02T10/24

摘要： A device for treating exhaust gases includes a particle separator, an SCR catalytic converter for selectively reducing nitrogen oxides and an ammonia generator for generating ammonia as a selective reducing agent for reducing nitrogen oxides. The particle separator is provided in a main exhaust line and the ammonia generator is provided in a first secondary line. The first secondary line opens into the main exhaust line at a junction in such a way that an ammonia-containing gas stream generated in the ammonia generator can flow through the SCR catalytic converter. The method and the device advantageously permit the proportion of particles and nitrogen oxides (NOx) contained in the exhaust gas of an internal combustion engine to be reduced simultaneously, with the energy consumption for this reduction being small and at the same time the entire device being embodied as a compact unit.

摘要翻译： 用于处理废气的装置包括颗粒分离器，用于选择性还原氮氧化物的SCR催化转化器和用于产生氨作为还原氮氧化物的选择性还原剂的氨发生器。 颗粒分离器设置在主排气管线中，氨发生器设置在第一副管路中。 第一副线在接合处通向主排气管，使得在氨发生器中产生的含氨气流可以流过SCR催化转化器。 该方法和装置有利地允许内燃机排气中所含的颗粒和氮氧化物的比例同时降低，这种还原的能量消耗小， 同时整个设备被实施为一个紧凑的单元。

公开(公告)号：US20090127511A1

公开(公告)日：2009-05-21

申请号：US12272384

申请日：2008-11-17

申请人： Rolf Bruck ,  Marc Brugger ,  Thomas Harig ,  Peter Hirth ,  Ulf Klein

发明人： Rolf Bruck ,  Marc Brugger ,  Thomas Harig ,  Peter Hirth ,  Ulf Klein

IPC分类号： C09K3/00 ,  B01J19/00

CPC分类号： B01D53/9431 ,  B01D53/90 ,  C01C1/08 ,  C01C1/086 ,  F01N3/2066 ,  F01N2240/20 ,  F01N2240/40 ,  F01N2610/02 ,  F01N2610/06 ,  F01N2610/10 ,  F01N2610/11 ,  Y02T10/24

摘要： A device and method for providing a gaseous substance mixture which includes at least one reducing agent and/or at least one reducing agent precursor, includes a reservoir for an aqueous solution which includes at least one reducing agent precursor that can be flow connected to an evaporator chamber, and a device for dosing the aqueous solution in the evaporator chamber. A device can heat the evaporator chamber to a temperature higher than or equal to a critical temperature, in which the aqueous solution is at least partially evaporated. The device and method enable reducing agent to be provided for selective catalytic reduction of nitrogen oxides in the exhaust of an internal combustion engine. Preferably, an evaporator unit is configured as the evaporator chamber and a hydrolysis catalytic converter is disposed outside the exhaust system. As a result, the size of the hydrolysis catalytic converter is reduced, allowing compact construction.

摘要翻译： 一种用于提供包含至少一种还原剂和/或至少一种还原剂前体的气态物质混合物的装置和方法，包括用于水溶液的储存器，其包括至少一种还原剂前体，所述还原剂前体可流动连接到蒸发器 室，以及用于对蒸发器室中的水溶液进行计量的装置。 一种装置可将蒸发器室加热至高于或等于临界温度的温度，其中水溶液至少部分蒸发。 该装置和方法使还原剂能够用于选择性地催化还原内燃机排气中的氮氧化物。 优选地，蒸发器单元被配置为蒸发器室，并且水解催化转化器设置在排气系统的外部。 结果，水解催化转化器的尺寸减小，允许紧凑的结构。

公开(公告)号：US20090107120A1

公开(公告)日：2009-04-30

申请号：US12272359

申请日：2008-11-17

申请人： Rolf Bruck ,  Marc Brugger ,  Thomas Harig ,  Peter Hirth ,  Ulf Klein

发明人： Rolf Bruck ,  Marc Brugger ,  Thomas Harig ,  Peter Hirth ,  Ulf Klein

IPC分类号： F01N3/18

CPC分类号： B01D53/90 ,  B01D53/9431 ,  B01D2251/2067 ,  F01N3/208 ,  F01N2240/40 ,  F01N2610/02 ,  F01N2610/06 ,  F01N2610/10 ,  F01N2610/11 ,  F01N2610/14 ,  F01N2900/1811 ,  Y02T10/24

摘要： A device for treating exhaust gas of an internal combustion engine includes a reducing agent solution evaporator, a hydrolysis catalytic converter connected thereto for hydrolysis of urea to form ammonia and an SCR catalytic converter for selective catalytic reduction of nitrogen oxides. The evaporator includes an evaporator unit providing a gaseous substance mixture including at least one reducing agent precursor and/or reducing agent. The evaporator unit evaporates an aqueous solution including at least one reducing agent precursor. The SCR catalytic converter is in an exhaust line, and the evaporator and the hydrolysis catalytic converter are outside of and can be connected to the exhaust line. A sufficiently large quantity of reducing agent for selective catalytic reduction of nitrogen oxides in the SCR catalytic converter can be provided, while permitting a smaller volume of the hydrolysis catalytic converter than in the prior art, since it is not traversed by exhaust gas.

摘要翻译： 用于处理内燃机废气的装置包括还原剂溶液蒸发器，与其连接的用于水解尿素以形成氨的水解催化转化器和用于选择性催化还原氮氧化物的SCR催化转化器。 蒸发器包括提供包含至少一种还原剂前体和/或还原剂的气态物质混合物的蒸发器单元。 蒸发器单元蒸发包含至少一种还原剂前体的水溶液。 SCR催化转化器处于排气管线中，蒸发器和水解催化转化器在排气管线之外并可连接到排气管线上。 可以提供足够大量的用于SCR催化转化器中氮氧化物的选择性催化还原的还原剂，同时允许比现有技术更少体积的水解催化转化器，因为它不被废气穿过。

公开(公告)号：US20090120078A1

公开(公告)日：2009-05-14

申请号：US12272343

申请日：2008-11-17

申请人： Rolf Bruck ,  Marc Brugger ,  Thomas Harig ,  Peter Hirth ,  Ulf Klein

发明人： Rolf Bruck ,  Marc Brugger ,  Thomas Harig ,  Peter Hirth ,  Ulf Klein

IPC分类号： F01N3/10

CPC分类号： F01N3/2066 ,  B01D53/9431 ,  B01D2251/2067 ,  F01N2240/16 ,  F01N2240/40 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/11 ,  Y02T10/24

摘要： An apparatus for treating exhaust gas of an internal combustion engine, includes a feed conduit feeding aqueous solution, a hydrolysis catalytic converter connected to the feed conduit and an SCR catalytic converter through which exhaust gas flows. A rod-shaped heating element heats at least parts of the feed conduit and/or hydrolysis catalytic converter. The apparatus provides a compact structure of a feed conduit heated by a rod-shaped element and a corresponding hydrolysis catalytic converter, with which an aqueous solution containing urea can be evaporated and then hydrolyzed to a gas stream containing ammonia. This gas stream serves as a reducing agent in the SCR process. The compact configuration allows installation in very confined space conditions. The hydrolysis catalytic converter, through which exhaust gas does not flow, permits the volume of the hydrolysis catalytic converter to be decisively reduced, since significantly smaller mass flows of gas need to be hydrolyzed therein.

摘要翻译： 一种用于处理内燃机废气的装置，包括供给水溶液的进料管，连接到进料管的水解催化转化器和排气流过的SCR催化转化器。 杆形加热元件加热至少部分进料管和/或水解催化转化器。 该设备提供了由棒状元件和相应的水解催化转化器加热的进料管道的紧凑结构，通过该方法可以蒸发含有尿素的水溶液，然后水解成含有氨的气流。 该气流在SCR工艺中用作还原剂。 紧凑型配置允许在非常狭窄的空间条件下进行安装。 废气不流动的水解催化转化器允许决定性地降低水解催化转化器的体积，因为气体的质量流量需要在其中水解。

公开(公告)号：US20090107125A1

公开(公告)日：2009-04-30

申请号：US12271943

申请日：2008-11-17

申请人： Rolf Bruck ,  Marc Brugger ,  Thomas Harig ,  Peter Hirth ,  Ulf Klein

发明人： Rolf Bruck ,  Marc Brugger ,  Thomas Harig ,  Peter Hirth ,  Ulf Klein

IPC分类号： F01N3/20

CPC分类号： B01D53/9431 ,  B01D53/90 ,  B01D2251/2067 ,  F01N3/208 ,  F01N3/36 ,  F01N2240/40 ,  F01N2610/02 ,  F01N2610/06 ,  F01N2610/10 ,  F01N2610/11 ,  F01N2610/14 ,  F01N2610/1453 ,  F01N2900/1811 ,  Y02A50/2325 ,  Y02T10/24

摘要： A device and a method for providing a gaseous substance mixture including at least one of a reducing agent and/or a reducing agent precursor, include a reservoir for an aqueous solution including at least one reducing agent precursor, from which the aqueous solution can be delivered into at least one metering line having a dispensing opening by a delivery device, and a device for heating the metering line above a critical temperature greater than the boiling temperature of water. Complete evaporation of an aqueous solution including urea and subsequent hydrolysis to form a substance mixture including ammonia, are carried out. The substance mixture is metered as a reducing agent into an SCR catalytic converter. Carrying out the evaporation outside the exhaust system uses considerably smaller hydrolysis catalytic converters, which is space-saving and cost-saving compared to conventional devices for providing a reducing agent for selective catalytic reduction of nitrogen oxides.

摘要翻译： 一种用于提供包含还原剂和/或还原剂前体中的至少一种的气态物质混合物的装置和方法，包括用于包含至少一种还原剂前体的水溶液的储存器，可以从该还原剂前体输送水溶液 进入具有通过输送装置的分配开口的至少一个计量管线，以及用于将计量管线加热到高于水的沸点温度的临界温度以上的装置。 完成包括尿素在内的水溶液的蒸发，随后进行水解以形成包含氨的物质混合物。 将物质混合物作为还原剂计量加入到SCR催化转化器中。 在排气系统外部进行蒸发使用相当小的水解催化转化器，与用于提供用于氮氧化物的选择性催化还原的还原剂的常规装置相比，其节省空间并节省成本。

公开(公告)号：US20080011054A1

公开(公告)日：2008-01-17

申请号：US11837578

申请日：2007-08-13

申请人： Kait Althofer ,  Rolf Bruck ,  Peter Hirth

发明人： Kait Althofer ,  Rolf Bruck ,  Peter Hirth

IPC分类号： G01N33/497

CPC分类号： F01N11/00 ,  F01N13/008 ,  F01N2560/02 ,  F01N2560/06 ,  Y02T10/47

摘要： A method positions a sensor in a honeycomb body which is provided with hollow spaces that can be penetrated at least in part by an exhaust gas. The sensor is placed in an area of the honeycomb body in which at least one minimum hydrogen concentration occurs when the honeycomb body is operated in the emission system of a motor vehicle. The sensor positioning method allows the sensor to be placed in the honeycomb body in such a way that systematic errors that occur are kept as small as possible as a result of an inherent transverse sensitivity of the sensor to hydrogen. This applies especially to lambda probes. A honeycomb body contains the sensor which is placed so as to supply particularly reliable test data whose systematic error is as small as possible.

摘要翻译： 一种方法将传感器定位在蜂窝体中，所述蜂窝体设置有可以至少部分地通过排气穿透的中空空间。 传感器被放置在蜂窝体的区域中，蜂窝体在机动车辆的排放系统中操作时至少发生一个最小氢浓度。 传感器定位方法允许将传感器放置在蜂窝体中，使得发生的系统误差由于传感器对氢的固有横向灵敏度而保持尽可能小。 这尤其适用于λ探针。 蜂窝体包含放置的传感器，以便提供系统误差尽可能小的特别可靠的测试数据。

公开(公告)号：US20060144900A1

公开(公告)日：2006-07-06

申请号：US11352808

申请日：2006-02-13

申请人： Peter Hirth ,  Rolf Bruck ,  Thomas Harig

发明人： Peter Hirth ,  Rolf Bruck ,  Thomas Harig

IPC分类号： B23K1/00 ,  B23K31/02

CPC分类号： F01N13/1838 ,  B01J35/04 ,  B23K11/0026 ,  B23K11/06 ,  B23K11/065 ,  B23K2101/006 ,  B23K2101/04 ,  F01N2330/02 ,  F01N2330/04 ,  F01N2330/12 ,  F01N2450/22

摘要： A process for producing a body for exhaust gas treatment having a plurality of metallic layers, includes bringing the layers into contact with each other in a connection region. A connection is made by a roller seam welding process in such a way that the layers form passages through which a gas stream can flow. A corresponding body for exhaust gas treatment can especially be used as a filter or catalyst carrier body in the automobile industry.

公开(公告)号：US20090104089A1

公开(公告)日：2009-04-23

申请号：US12269092

申请日：2008-11-12

申请人： Peter Hirth ,  Thomas Harig ,  Rolf Bruck ,  Holger Stock

发明人： Peter Hirth ,  Thomas Harig ,  Rolf Bruck ,  Holger Stock

IPC分类号： B01D53/34 ,  B01J23/42 ,  B01J23/44 ,  B05D5/00

CPC分类号： B01J35/04 ,  B01D53/945 ,  B01D53/9454 ,  B01D2255/102 ,  B01D2255/206 ,  B01D2255/2092 ,  B01D2255/9202 ,  B01D2258/01 ,  F01N3/2814 ,  F01N2330/02 ,  Y02A50/2324 ,  Y02T10/22

摘要： A carrier body includes an overall surface having at least one coating portion with a catalytically active coating including at least one type of catalyst elements disposed in dispersed form at a surface of the carrier body. The catalyst elements have a mean spacing along the surface of at least 3 micrometers. The surface has a mean roughness depth Rz of 2 to 10 micrometers. The carrier body has a maximum increase in pressure loss compared to a carrier body with a smooth and uncoated surface of 25%. A process for producing a carrier body and an exhaust gas treatment unit and a vehicle having a carrier body, are also provided.

摘要翻译： 载体主体包括具有至少一个具有催化活性涂层的涂层部分的整个表面，该涂层部分包括以分散形式设置在载体主体表面的至少一种催化剂元件。 催化剂元件具有沿表面的至少3微米的平均间隔。 表面的平均粗糙度深度Rz为2〜10微米。 与具有25％的光滑和未涂覆表面的载体相比，载体体积具有最大的压力损失增加。 还提供了一种制造载体主体和废气处理单元的方法以及具有载体的车辆。

公开(公告)号：US20070289276A1

公开(公告)日：2007-12-20

申请号：US11825803

申请日：2007-07-09

申请人： Peter Hirth ,  Rolf Bruck ,  Thomas Harig

发明人： Peter Hirth ,  Rolf Bruck ,  Thomas Harig

IPC分类号： B01D39/02

CPC分类号： B01D39/2027 ,  F01N3/0226 ,  Y02T10/20 ,  Y10S55/30

摘要： A method for removing particulates from a gas stream includes providing a gas-permeable filter layer having subregions with a parameter of differing magnitudes in the direction of the layer thickness. This parameter relates at least to the porosity, the fiber diameter of fibers or the fiber type content of the filter layer. The gas stream is divided into partial gas streams which are each passed through different subregions of the filter layer. Fiber layers, particulate filters, exhaust systems and vehicles based on this method are also provided.

摘要翻译： 从气流中除去微粒的方法包括提供具有在层厚度方向上具有不同幅度参数的子区域的透气过滤层。 该参数至少涉及孔隙率，纤维的纤维直径或过滤层的纤维类型含量。 气流被分成部分气流，每个气流通过过滤层的不同子区域。 还提供了基于该方法的纤维层，微粒过滤器，排气系统和车辆。