公开(公告)号：US5974789A

公开(公告)日：1999-11-02

申请号：US28235

申请日：1998-02-23

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

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

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

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

Abstract: 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.

Abstract translation: 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：US06539708B1

公开(公告)日：2003-04-01

申请号：US09640152

申请日：2000-08-16

Applicant: Lothar Hofmann ,  Wieland Mathes

Inventor： Lothar Hofmann ,  Wieland Mathes

IPC: F01N300

CPC classification number: F01N3/2066 ,  B01D53/8631 ,  B01D53/8696 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  B01F5/0268 ,  F01N2240/20 ,  F01N2260/024 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/102 ,  F01N2610/11 ,  F01N2610/1453 ,  F01N2610/1473 ,  F23J15/003 ,  Y02T10/24

Abstract: A metering system in a combustion unit having an exhaust-gas chamber and a reducing agent reservoir includes an electrically controllable valve for introducing the reducing agent into the exhaust-gas chamber without using compressed air. The valve has an outlet opening that opens directly into the exhaust-gas chamber. The outlet opening is fluidically connected to the reservoir through the valve. The metering system can be produced with only little technical outlay. The metering system includes a recirculating circuit, and the valve has a holding chamber for the reducing agent. The holding chamber is disposed downstream of the outlet opening in a reducing agent flow direction, and is fluidically connected into the recirculating circuit. The metering system includes a coolant circuit for cooling the valve. The valve and its outlet opening is disposed in the exhaust-gas chamber to position the principal axis of the valve at an angle of less than 90° with respect to a principal direction of flow of exhaust gas in the exhaust-gas chamber. The metering system includes a baffle disposed in the exhaust-gas chamber to cause a change in direction of reducing agent introduced therein. The combustion unit can be a diesel engine, and the reducing agent can be a urea solution.

Abstract translation: 在具有废气室和还原剂储存器的燃烧单元中的计量系统包括用于将还原剂引入排气室而不使用压缩空气的电可控阀。 该阀具有直接进入废气室的出口。 出口开口通过阀流体连接到储存器。 计量系统只能用很少的技术支出生产。 计量系统包括循环回路，并且该阀具有用于还原剂的保持室。 保持室以还原剂流动方向设置在出口开口的下游，并且流体连接到再循环回路中。 计量系统包括用于冷却阀的冷却剂回路。 阀及其出口开口设置在废气室中，以相对于废气室中废气流动的主要方向将阀的主轴定位成小于90°的角度。 计量系统包括设置在废气室中的挡板，以引起其中引入的还原剂的方向改变。 燃烧单元可以是柴油发动机，还原剂可以是尿素溶液。

公开(公告)号：US06273120B1

公开(公告)日：2001-08-14

申请号：US09569285

申请日：2000-05-12

Applicant: Lothar Hofmann ,  Wieland Mathes

Inventor： Lothar Hofmann ,  Wieland Mathes

IPC: G05D1113

CPC classification number: F01N3/2066 ,  B01D53/8631 ,  B01D53/8696 ,  B01D53/9431 ,  B01D53/9495 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/1473 ,  Y02C20/10 ,  Y02T10/24 ,  Y10T137/2514

Abstract: A device for introducing a liquid reducing agent into an exhaust gas purification system includes a gas line for receiving and carrying a gas, a reducing agent line for receiving and carrying a liquid reducing agent, a mixing chamber for mixing the reducing agent with the gas, the mixing chamber fluidically connected to the gas line and to the aid reducing agent line, a metering valve disposed in the reducing agent line; and a control device for controlling a pressure in the reducing agent line dependent upon a gas pressure in the gas line. The control device can also be used for controlling the reducing agent throughput in the reducing agent line in dependence on the gas pressure in the gas line.

Abstract translation: 将液体还原剂引入废气净化系统中的装置包括用于接收和携带气体的气体管线，用于接收和运送液体还原剂的还原剂管线，用于将还原剂与气体混合的混合室， 所述混合室流体连接到所述气体管线和所述辅助还原剂管线，设置在所述还原剂管线中的计量阀; 以及用于根据气体管线中的气体压力来控制还原剂管线中的压力的​​控制装置。 控制装置还可以用于根据气体管线中的气体压力来控制还原剂管线中的还原剂生产量。

公开(公告)号：US5785937A

公开(公告)日：1998-07-28

申请号：US798517

申请日：1997-02-10

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

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

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

CPC classification number: 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

Abstract: 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.

Abstract translation: 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

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

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

IPC: B32B9/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US06878359B1

公开(公告)日：2005-04-12

申请号：US09711867

申请日：2000-11-13

Applicant: Wieland Mathes ,  Raimund Müller ,  Klaus Rusch ,  Petra Anette Rusch ,  Ralf Sigling

Inventor： Wieland Mathes ,  Raimund Müller ,  Klaus Rusch ,  Petra Anette Rusch ,  Ralf Sigling

IPC: B01D53/56 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  B01J8/00 ,  C01B21/00

CPC classification number: B01D53/9431 ,  B01D53/8631

Abstract: The process and the device are provided for the selective catalytic reduction of nitrogen oxides in an oxygen-containing gaseous medium. The reducing agent required for the reaction is prepared in a separate preparation reactor. A substance that can be converted into the reducing agent is introduced into a carrier gas in the preparation reactor and, as a result, is converted by substantially thermal conversion. The energy required for the conversion is provided by the carrier gas.

Abstract translation: 该方法和装置用于选择性催化还原含氧气体介质中的氮氧化物。 反应所需的还原剂在单独的制备反应器中制备。 将可以转化为还原剂的物质引入制备反应器中的载气中，结果通过大量热转化而转化。 转化所需的能量由载气提供。

公开(公告)号：US06401455B1

公开(公告)日：2002-06-11

申请号：US09491118

申请日：2000-01-24

Applicant: Wieland Mathes ,  Frank Witzel ,  Steffen Schnapp

Inventor： Wieland Mathes ,  Frank Witzel ,  Steffen Schnapp

IPC: F01N300

CPC classification number: F01N3/2066 ,  B01D53/90 ,  B01D53/9454 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2240/40 ,  F01N2610/02 ,  Y02T10/22 ,  Y02T10/24

Abstract: An injection device for a reducing agent, a mixing device and a catalyst device are provided in an exhaust pipe. The mixing device is disposed upstream of the injection device as seen in the direction of flow of the exhaust gas. An exhaust gas inlet pipe is connected to the exhaust pipe along the main axis of the exhaust pipe. A first level of the catalyst device may advantageously be a hydrolysis-catalyst module, while the other levels may be SCR catalyst modules.

Abstract translation: 在排气管中设置有用于还原剂的注射装置，混合装置和催化剂装置。 混合装置设置在喷射装置的上游，如从排气的流动方向看。 排气入口管沿着排气管的主轴线与排气管连接。 催化剂装置的第一级可以有利地是水解催化剂模块，而其它级别可以是SCR催化剂模块。

公开(公告)号：US06422005B2

公开(公告)日：2002-07-23

申请号：US09815201

申请日：2001-03-22

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

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

IPC: F01N300

CPC classification number: F01N3/2066 ,  B01D53/9431 ,  B01D53/9495 ,  F01N2610/02 ,  F02B3/06 ,  Y02T10/24

Abstract: 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.

Abstract translation: 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：US5394610A

公开(公告)日：1995-03-07

申请号：US75138

申请日：1993-06-10

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

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

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

CPC classification number: B01J37/0244 ,  B01J37/0226 ,  Y10T29/49345

Abstract: 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.

Abstract translation: 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：US06488903B2

公开(公告)日：2002-12-03

申请号：US09725340

申请日：2000-11-29

Applicant: Wieland Mathes ,  Ronald Neufert ,  Dietmar Weisensel ,  Klaus Wenzlawski

Inventor： Wieland Mathes ,  Ronald Neufert ,  Dietmar Weisensel ,  Klaus Wenzlawski

IPC: C01G3000

CPC classification number: B01D53/945 ,  B01D53/90 ,  F01N3/206 ,  Y02T10/22

Abstract: 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.

Abstract translation: 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。