公开(公告)号：US06422005B2

公开(公告)日：2002-07-23

申请号：US09815201

申请日：2001-03-22

申请人： Winfried Dölling ,  Reinhard Latsch ,  Wieland Mathes ,  Ronald Neufert ,  Rainer Tost ,  Dietmar Weisensel ,  Klaus Wenzlawski ,  Jürgen Zürbig

发明人： Winfried Dölling ,  Reinhard Latsch ,  Wieland Mathes ,  Ronald Neufert ,  Rainer Tost ,  Dietmar Weisensel ,  Klaus Wenzlawski ,  Jürgen Zürbig

IPC分类号： F01N300

CPC分类号： F01N3/2066 ,  B01D53/9431 ,  B01D53/9495 ,  F01N2610/02 ,  F02B3/06 ,  Y02T10/24

摘要： A process for catalytic removal of a pollutant from a combustion installation exhaust gas includes calculating, from operationally relevant parameters of the installation, a pollutant concentration using a predetermined characteristic diagram. A predetermined quantity of a reagent is introduced into the exhaust per unit time as a function of the calculated pollutant concentration, the reagent reacting with the pollutant at a catalytic converter. Operating states of the installation with substantially constant pollutant emission levels are determined. The pollutant concentration during an operating state of the installation with a substantially constant pollutant emission level is determined with a sensor and only a pollutant concentration from the installation in a steady operating state is used to correct the diagram. The pollutant concentration from the installation is calculated with the diagram in a non-steady operating state. An apparatus for the catalytic removal of the pollutant from the exhaust gas is also provided.

摘要翻译： 从燃烧设备排气中催化除去污染物的方法包括使用预定的特征图从操作上相关的设备参数计算污染物浓度。 预定量的试剂作为计算的污染物浓度的函数，每单位时间引入到排气中，试剂与催化转化器的污染物反应。 确定具有基本恒定污染物排放水平的安装的运行状态。 使用传感器确定具有基本恒定的污染物排放水平的安装操作状态下的污染物浓度，并且仅使用来自安装在稳定运行状态的污染物浓度来校正图。 来自安装的污染物浓度在图中以非稳定运行状态计算。 还提供了用于从废气中催化除去污染物的装置。

公开(公告)号：US06488903B2

公开(公告)日：2002-12-03

申请号：US09725340

申请日：2000-11-29

申请人： Wieland Mathes ,  Ronald Neufert ,  Dietmar Weisensel ,  Klaus Wenzlawski

发明人： Wieland Mathes ,  Ronald Neufert ,  Dietmar Weisensel ,  Klaus Wenzlawski

IPC分类号： C01G3000

CPC分类号： B01D53/945 ,  B01D53/90 ,  F01N3/206 ,  Y02T10/22

摘要： A method for cleaning diesel engine exhaust gas is described. The exhaust gas is passed over a catalytic converter with an active material which contains (% by weight) 70-95% TiO2, 2-10% WO3 and/or MoO3, 0.1-5% V2O5, 0.1-8% CaO, 0.1-8% Al2O3, 0.1-5% B2O3 and 0.1-10% SiO2. A reducing agent for a reduction of nitrogen oxides is metered into the exhaust-gas stream upstream of the catalytic converter.

摘要翻译： 描述了一种用于清洁柴油发动机废气的方法。 废气通过含有（重量％）70-95％TiO 2，2-10％WO 3和/或MoO 3，0.1-5％V 2 O 5，0.1-8％CaO，0.1- 8％Al2O3，0.1-5％B2O3和0.1-10％SiO2。 将用于还原氮氧化物的还原剂计量到催化转化器上游的排气流中。

公开(公告)号：US6082102A

公开(公告)日：2000-07-04

申请号：US161203

申请日：1998-09-25

申请人： Gerhard Wissler ,  Gunther Pajonk ,  Lothar Hofmann ,  Manfred Weigl ,  Wieland Mathes ,  Ronald Neufert ,  Klaus Wenzlawski ,  Dietmar Weisensel

发明人： Gerhard Wissler ,  Gunther Pajonk ,  Lothar Hofmann ,  Manfred Weigl ,  Wieland Mathes ,  Ronald Neufert ,  Klaus Wenzlawski ,  Dietmar Weisensel

IPC分类号： B01D53/86 ,  B01D53/94 ,  F01N3/20 ,  F02D41/26 ,  F01N3/00

CPC分类号： F01N3/2066 ,  B01D53/8696 ,  B01D53/9454 ,  B01D53/9495 ,  F01N2610/02 ,  F02D41/266 ,  Y02C20/10 ,  Y02T10/22 ,  Y02T10/24

摘要： A NO.sub.x reduction system includes an SCR catalytic converter and a metering assembly for reducing agent. A control unit for the reduction system is integrated together with the actuators and sensors as a functional unit at the reducing agent container. This provides savings in terms of lines and plug-in connections, and relieves the burden on the control unit of the internal combustion engine.

摘要翻译： NOx还原系统包括SCR催化转化器和用于还原剂的计量组件。 用于还原系统的控制单元与作为功能单元的致动器和传感器一起集成在还原剂容器中。 这样可以节省线路和插头连接，并减轻内燃机控制单元的负担。

公开(公告)号：US5884475A

公开(公告)日：1999-03-23

申请号：US816365

申请日：1997-03-13

申请人： Lothar Hofmann ,  Ronald Neufert ,  Wieland Mathes

发明人： Lothar Hofmann ,  Ronald Neufert ,  Wieland Mathes

IPC分类号： F01N3/08 ,  B01D53/86 ,  B01D53/94 ,  F01N3/20 ,  F01N3/24 ,  F23J15/00 ,  F23J15/02 ,  F01N3/00

CPC分类号： F01N3/2066 ,  B01D53/9431 ,  B01D53/9495 ,  F23J15/003 ,  F01N2240/02 ,  F01N2240/16 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/10 ,  F01N2610/1406 ,  F01N2610/1486 ,  F01N2610/1493 ,  Y02T10/24

摘要： Nitrogen oxides emitted by an internal-combustion engine operated with excess air are normally converted by the method of selective catalytic reduction by bringing the nitrogen oxides, together with ammonia, into contact with a selective catalyst. Due to the dangers associated with the use of ammonia, in a motor vehicle ammonia should only be carried in the form of a substance which liberates ammonia, generally an aqueous urea solution. A method and a device for introducing liquid into an exhaust-gas purification system according to the invention avoids frost damage to sections of the system during shutdown times and permits operation of the system at temperatures below the freezing point of the reducing agent solution being used. The method and device include a (thermally insulated) reservoir for the reducing agent liquid and a liquid supply line which is connected thereto and terminates in an outlet opening for the liquid. The reservoir and the liquid supply line can be heated. Furthermore, a heater is provided for liquefying a starting volume which is small as compared with the volume of the reservoir. The liquid supply line may also have a back-flush valve to which a gas that is under pressure can be applied. The supply line can consequently be blown free.

摘要翻译： 由过量空气运行的内燃机排放的氮氧化物通常通过使氮氧化物与氨与选择性催化剂接触而通过选择性催化还原的方法转化。 由于与使用氨有关的危险，在机动车辆中，氨只应以释放氨（通常为尿素水溶液）的物质的形式运载。 根据本发明的用于将液体引入排气净化系统的方法和装置避免了在关闭时间期间对系统的部分的霜冻损坏，并且允许系统在低于所使用的还原剂溶液的凝固点的温度下操作。 该方法和装置包括用于还原剂液体的（隔热）储存器和连接到其上的终止于液体出口的液体供应管线。 储存器和液体供应管线可以被加热。 此外，提供了一种用于液化与储存器的体积相比小的起始体积的加热器。 液体供应管线还可以具有可以施加压力下的气体的后冲洗阀。 因此，供应线可以自由吹制。

公开(公告)号：US5974789A

公开(公告)日：1999-11-02

申请号：US28235

申请日：1998-02-23

申请人： Wieland Mathes ,  Lothar Hofmann ,  Detlev Schoppe ,  Erwin Achleitner ,  Rainer Tost

发明人： Wieland Mathes ,  Lothar Hofmann ,  Detlev Schoppe ,  Erwin Achleitner ,  Rainer Tost

IPC分类号： F02B37/00 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/28 ,  F01N3/30 ,  F01N3/32 ,  F01N3/36 ,  F02B33/44 ,  F02B37/16 ,  F01N3/00

CPC分类号： F01N3/2066 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/32 ,  F02B33/44 ,  F02B37/168 ,  F01N2610/02 ,  Y02T10/144 ,  Y02T10/24

摘要： A method and a device for decomposing nitrogen oxides in an exhaust gas of an internal combustion engine, include feeding the exhaust gas and a reactant which is sprayed into the exhaust gas through the use of compressed air, to a catalytic converter. A compressor for supplying compressed air is associated with the internal combustion engine, and part of the compressed air is diverted and used as the compressed air for injecting the reactant. The sprayed reactant is fed to the catalytic converter, together with the exhaust gas to be purified, which ensures the decomposition of the nitrogen oxides, in particular according to the method of selective catalytic reaction.

摘要翻译： 一种用于分解内燃机废气中的氮氧化物的方法和装置，包括将废气和通过使用压缩空气喷射到废气中的反应物进料到催化转化器。 用于供应压缩空气的压缩机与内燃机相关联，并且一部分压缩空气被转向并用作用于注入反应物的压缩空气。 将喷射的反应物与待纯化的废气一起进料到催化转化器，这确保氮氧化物的分解，特别是根据选择性催化反应的方法。

公开(公告)号：US5394610A

公开(公告)日：1995-03-07

申请号：US75138

申请日：1993-06-10

申请人： Rainer Stoephasius ,  Wieland Mathes ,  Ronald Neufert ,  Helmut Schmelz ,  Jurgen Zurbig

发明人： Rainer Stoephasius ,  Wieland Mathes ,  Ronald Neufert ,  Helmut Schmelz ,  Jurgen Zurbig

IPC分类号： B01J35/04 ,  B01J35/08 ,  B01J37/02 ,  B21D53/00

CPC分类号： B01J37/0244 ,  B01J37/0226 ,  Y10T29/49345

摘要： A catalytic converter includes a metal carrier body, an adhesion-promoting intermediate layer in the form of an oxide film applied to the carrier body and a catalytically active layer applied to the intermediate layer. A method for producing a catalytic converter includes heating a metal carrier body in an oxidizing atmosphere to form an adhesion-promoting intermediate layer in the form of an oxide film on the carrier body and applying a catalytically active layer to the intermediate layer.

摘要翻译： 催化转化器包括金属载体体，施加到载体上的氧化膜形式的粘附促进中间层和施加到中间层的催化活性层。 催化转化器的制造方法包括在氧化气氛中加热金属载体，在载体上形成氧化膜形式的粘附促进中间层，向中间层施加催化活性层。

公开(公告)号：US5785937A

公开(公告)日：1998-07-28

申请号：US798517

申请日：1997-02-10

申请人： Ronald Neufert ,  Wieland Mathes ,  Dagmar Schobert-Schaefer ,  Lothar Hofmann

发明人： Ronald Neufert ,  Wieland Mathes ,  Dagmar Schobert-Schaefer ,  Lothar Hofmann

IPC分类号： B01D53/30 ,  B01D53/86 ,  B01D53/94 ,  F01N3/20

CPC分类号： F01N3/208 ,  B01D53/30 ,  B01D53/8696 ,  B01D53/9431 ,  B01D53/9495 ,  F01N2560/06 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/08 ,  F01N2900/1402 ,  F01N2900/1622 ,  Y02T10/24

摘要： A method is provided in which the reducing agent, during the starting phase of the internal-combustion engine and during operation with decreasing and, if appropriate, virtually constant exhaust gas temperature, is fed superstoichiometrically in relation to the nitrogen oxide concentration, while taking into account the temperature-dependent storage capacity of a denitration catalytic converter for the reducing agent. The reducing agent is otherwise fed substoichiometrically. In this manner, the catalytic converter is kept at all times at a preferred charge level, so that on one hand it is possible to provide sufficient stored reducing agent for the catalytic conversion and on the other hand it is possible to still have a reducing agent buffer available which avoids slip of the reducing agent. The invention can be used in all internal-combustion engines operated with air excess, such as diesel engines and lean-burn engines.

摘要翻译： 提供了一种方法，其中在内燃机的起动阶段和在运行期间还原剂在减少并且如果适当的情况下基本上恒定的排气温度被加入到超氧化物计量相对于氮氧化物浓度的同时， 考虑了用于还原剂的脱硝催化转化器的温度依赖性储存容量。 还原剂另外以化学计量方式进料。 以这种方式，催化转化器始终保持在优选的装料水平，因此一方面可以提供足够的储存的用于催化转化的还原剂，另一方面可以还有还原剂 缓冲剂可以避免还原剂的滑脱。 本发明可以用于所有使用空气过剩的内燃机，例如柴油发动机和稀燃燃烧发动机。

公开(公告)号：US07294408B2

公开(公告)日：2007-11-13

申请号：US10296824

申请日：2001-05-28

申请人： Wolfgang Bauer ,  Elisabeth Hügging ,  Jochen Jacobitz ,  Hellmuth Kiesewetter ,  Wieland Mathes

发明人： Wolfgang Bauer ,  Elisabeth Hügging ,  Jochen Jacobitz ,  Hellmuth Kiesewetter ,  Wieland Mathes

IPC分类号： B32B9/00

CPC分类号： C04B37/005 ,  C04B35/6365 ,  C04B37/006 ,  C04B37/026 ,  C04B2235/5436 ,  C04B2237/10 ,  C04B2237/122 ,  C04B2237/125 ,  C04B2237/126 ,  C04B2237/127 ,  C04B2237/30 ,  C04B2237/343 ,  C04B2237/405 ,  C04B2237/55 ,  C04B2237/70 ,  C04B2237/704 ,  C04B2237/706 ,  C04B2237/708 ,  C04B2237/72 ,  C04B2237/76 ,  C04B2237/80 ,  C04B2237/82 ,  Y10T428/131

摘要： A material composite that is vacuum-tight and resistant to thermal shocks is disclosed along with a method for the production thereof and to its use. A permanent connection between an aluminum oxide sapphire and an aluminum oxide ceramic is attained by a first connecting later comprised of a manganese-silicate glass, in which at least one of the metals molybdenum, tungsten, palladium or platinum is incorporated, and by a second connecting layer comprised of a manganese-silicate glass. To this end, the individual materials are fused by sintering. The material composite is used, for example, for inserting a window comprised of aluminum oxide sapphire into a housing for a light-ignitable thyristor.

摘要翻译： 公开了一种真空密封且耐热冲击的材料复合材料及其生产方法及其用途。 氧化铝蓝宝石和氧化铝陶瓷之间的永久连接通过稍后的第一次连接来实现，该第一连接由其中结合有钼，钨，钯或铂中的至少一种金属的硅酸锰玻璃，以及第二 连接层由硅酸锰玻璃构成。 为此，各种材料通过烧结熔合。 材料复合材料用于例如将由氧化铝蓝宝石构成的窗口插入用于可点亮的晶闸管的外壳中。

公开(公告)号：US06475453B1

公开(公告)日：2002-11-05

申请号：US09133004

申请日：1998-08-12

申请人： Wieland Mathes ,  Lothar Hofmann ,  Frank Witzel

发明人： Wieland Mathes ,  Lothar Hofmann ,  Frank Witzel

IPC分类号： B01J2104

CPC分类号： F01N3/2066 ,  B01D53/9431 ,  B01D53/9477 ,  B01J35/04 ,  F01N13/0097 ,  F01N2330/06 ,  F01N2610/02 ,  Y02T10/24

摘要： A configuration for decomposing nitrogen oxides in a gas stream includes a plurality of catalytic converters disposed one after the other through which the gas stream can flow. Each of the catalytic converters has a honeycomb structure with many parallel cells through which the gas stream can flow. Each of the catalytic converters also has a predetermined cell density and a predetermined average level of activity defined as a proportion by weight of the catalytically active agent. The predetermined cell density of a second catalytic converter through which the gas stream flows after a first catalytic converter is lower than the predetermined cell density of the first catalytic converter. The predetermined average level of activity of the second catalytic converter is also higher than the predetermined average level of activity of the first catalytic converter. The configuration is preferably used in conjunction with an exhaust gas from a combustion drive unit.

摘要翻译： 用于分解气流中的氮氧化物的构造包括多个催化转化器，其一个接一个地设置，气流可以流过。 每个催化转化器具有蜂窝结构，其具有许多平行的气室，气流可以流过该蜂窝结构。 每个催化转化器还具有预定的细胞密度和预定的平均活性水平，定义为催化活性剂的重量比例。 气体流在第一催化转化器之后流过的第二催化转化器的预定电池密度低于第一催化转化器的预定电池密度。 第二催化转化器的预定平均活性水平也高于第一催化转化器的预定平均活性水平。 该结构优选与来自燃烧驱动单元的废气结合使用。

公开(公告)号：US06444177B1

公开(公告)日：2002-09-03

申请号：US08995646

申请日：1997-12-29

申请人： Raimund Müller ,  Lothar Hofmann ,  Kurt Schardt ,  Wieland Mathes

发明人： Raimund Müller ,  Lothar Hofmann ,  Kurt Schardt ,  Wieland Mathes

IPC分类号： B01D5386

CPC分类号： F01N3/2066 ,  B01D53/8631 ,  B01D53/8656 ,  B01D53/885 ,  B01F3/04049 ,  B01F5/0065 ,  B01F5/045 ,  B01F2005/0091 ,  F01N13/0097 ,  F01N13/017 ,  F01N2240/20 ,  F01N2240/40 ,  F01N2470/22 ,  F01N2610/02 ,  Y02T10/24

摘要： Exhaust gas to be cleaned is introduced into a conversion and mixing duct and the exhaust gas flows through the duct along a predetermined longitudinal direction. A reducing agent, such as aqueous urea solution, is injected into the exhaust gas stream in the conversion and mixing duct. The exhaust gas stream is then deflected into a reaction duct which extends parallel to or coaxially around the conversion and mixing duct. The exhaust gas then flows in the opposite direction through the reaction duct. A reduction catalyst is disposed in the reaction duct, where the reducible components of the exhaust gas are reduced. The exhaust gas cleaned in this manner is then discharged from the reaction duct.

摘要翻译： 要清洁的废气被引入转化和混合管道中，排气沿预定的纵向方向流过管道。 还原剂，例如尿素水溶液，被注入到转化和混合管道中的废气流中。 废气流然后被偏转到与转换和混合管道平行或同轴延伸的反应管道中。 废气然后沿相反方向流过反应管。 还原催化剂设置在反应管道中，其中废气的可还原组分被还原。 以这种方式清洁的废气然后从反应管排出。