公开(公告)号：US08578701B2

公开(公告)日：2013-11-12

申请号：US11517865

申请日：2006-09-07

申请人： Torsten Handler ,  Christian Walz ,  Matthias Loehr

发明人： Torsten Handler ,  Christian Walz ,  Matthias Loehr

IPC分类号： F01N3/00

CPC分类号： F01N9/00 ,  Y02T10/47

摘要： A method for operating an internal combustion engine in whose exhaust-gas region at least one SCR catalytic converter is disposed, which is acted upon by a reagent contributing to the NOx conversion in the SCR catalytic converter, and a device for implementing the method. The reagent level in the SCR catalytic converter is controlled or regulated to a predefined reagent setpoint level, which is specified to at least a maximum value, which corresponds to an SCR catalytic converter completely filled with reagent. In this way the SCR catalytic converter is always operated at the highest possible efficiency at which the highest possible NOx conversion takes place.

摘要翻译： 一种用于操作内燃机的方法，所述内燃机的排气区域设置有至少一个SCR催化转化器，所述SCR催化转化器由SCR催化转化器中的NOx转化作用的试剂作用，以及用于实施该方法的装置。 SCR催化转化器中的试剂水平被控制或调节到预定的试剂设定值水平，其被规定为至少最大值，其对应于完全填充有试剂的SCR催化转化器。 以这种方式，SCR催化转化器始终以最高可能的NOx转化率发生的最高效率运行。

公开(公告)号：US08393143B2

公开(公告)日：2013-03-12

申请号：US12437262

申请日：2009-05-07

申请人： Christian Walz ,  Frank Schweizer

发明人： Christian Walz ,  Frank Schweizer

IPC分类号： F01N3/00

CPC分类号： F01N3/208 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2900/1402 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24

摘要： A combustion engine has in the exhaust gas area a SCR-catalyzer with a NH3-filling level, a metering device for supplying the SCR-catalyzer with reactant for reducing nitrous gases, and a downstream NH3-sensitive NOx-sensor. One theoretical value for the NOx downstream of the SCR-catalyzer is compared to an actual NOx-value downstream of the SCR-catalyzer. A reasonability check includes determining a first value for one comparison parameter, which represents the state before a system intervention for adapting the NH3-filling level. A system intervention for adapting the NH3-filling level is carried out and a second value of the comparison parameter is detected. From the comparison of the first value and the second value the reasonability, the non-reasonability, or non-preciseness of the system intervention is assumed.

摘要翻译： 内燃机在废气区域内具有NH 3填充量的SCR催化剂，用于向SCR催化剂供应用于还原亚硝气的反应物的计量装置和下游的NH 3敏感的NOx传感器。 将SCR催化剂下游的NOx的一个理论值与SCR催化剂下游的实际NOx值进行比较。 合理性检查包括确定用于一个比较参数的第一值，其表示用于适应NH3填充水平的系统干预之前的状态。 执行用于适应NH 3填充水平的系统干预，并且检测比较参数的第二值。 从第一个值和第二个值的比较来看，假定系统干预的合理性，不合理性或非精确性。

公开(公告)号：US07428809B2

公开(公告)日：2008-09-30

申请号：US11236183

申请日：2005-09-26

申请人： Stefan Wickert ,  Torsten Handler ,  Dirk Samuelsen ,  Christian Walz

发明人： Stefan Wickert ,  Torsten Handler ,  Dirk Samuelsen ,  Christian Walz

IPC分类号： F01N3/00 ,  F01N3/10 ,  F02M25/06

CPC分类号： F01N3/208 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/08 ,  Y02T10/24

摘要： A method for operating an internal combustion engine; in the exhaust area of this engine there is at least one catalytic converter and downstream from the catalytic converter there is an NOx sensor. A device for carrying out this method is also provided. The NOx sensor has a cross-sensitivity to a reagent needed in the catalytic converter. In predefined operating states of the internal combustion engine, e.g., idling and/or overrun, a selection signal is supplied; when this selection signal occurs, the sensor signal supplied by the NOx sensor is interpreted as at least a measure of the reagent leakage.

摘要翻译： 一种操作内燃机的方法; 在该发动机的排气区域中存在至少一个催化转化器，并且在催化转化器的下游具有NOx传感器。 还提供了一种用于执行该方法的装置。 NOx传感器对催化转化器中所需的试剂具有交叉敏感性。 在内燃机的预定操作状态下，例如空转和/或溢出，提供选择信号; 当该选择信号发生时，由NOx传感器提供的传感器信号被解释为试剂泄漏的至少一个量度。

公开(公告)号：US07402573B2

公开(公告)日：2008-07-22

申请号：US11041606

申请日：2005-01-24

申请人： Bernhard Sabel ,  Christian Walz ,  Kerstin Ringe

发明人： Bernhard Sabel ,  Christian Walz ,  Kerstin Ringe

IPC分类号： A61K31/713

CPC分类号： A61K48/0008 ,  A61K9/5138 ,  A61K9/5161 ,  C12N15/87

摘要： The invention relates to the use of DNA-loaded nanoparticles for a transfection of DNA into cells in vitro or in vivo.

摘要翻译： 本发明涉及DNA负载纳米颗粒在体外或体内将DNA转染到细胞中的用途。

公开(公告)号：US08196390B2

公开(公告)日：2012-06-12

申请号：US11638764

申请日：2006-12-14

申请人： Hartmut Lueders ,  Christian Walz ,  Matthias Loehr

发明人： Hartmut Lueders ,  Christian Walz ,  Matthias Loehr

IPC分类号： F01N3/00

CPC分类号： F01N11/002 ,  F01N3/0253 ,  F01N3/2066 ,  F01N13/009 ,  F01N2250/02 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/14 ,  F01N2900/1402 ,  F01N2900/1622 ,  Y02T10/24 ,  Y02T10/47

摘要： Methods and devices to monitor an exhaust gas after-treatment system of an internal combustion engine with a motor block and an exhaust gas duct. The engine has at least one catalytic converter, upstream from which a reagent substance necessary for the NOx reduction in the catalytic converter is introduced by means of an introduction device. The reduction agent rate is increased to such an extent at defined reference operating points until an ammonia breach is detected in direction of flow behind the catalytic converter by means of an ammonia sensitive sensor in the exhaust gas duct.

摘要翻译： 用于监测具有马达块和排气管的内燃机的废气后处理系统的方法和装置。 发动机具有至少一个催化转化器，通过引入装置引入催化转化器中NOx还原所需的试剂物质的上游。 还原剂速率在限定的参考操作点上增加到这样的程度，直到通过排气管道中的氨敏感传感器在催化转化器后面的流动方向上检测到氨泄漏。

公开(公告)号：US08024921B2

公开(公告)日：2011-09-27

申请号：US12066223

申请日：2006-07-31

申请人： Christian Walz ,  Matthias Loehr ,  Andreas Rudolph

发明人： Christian Walz ,  Matthias Loehr ,  Andreas Rudolph

IPC分类号： F01N3/00 ,  F01N3/10

CPC分类号： F01N3/208 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0402 ,  F01N2900/08 ,  F01N2900/14 ,  F01N2900/1814 ,  Y02T10/24

摘要： A method for operating an internal combustion engine in whose exhaust gas region at least one SCR catalytic converter is arranged, a reagent which contributes to NOx conversion in the SCR catalytic converter being applied to said SCR catalytic converter, and a device for carrying out the method are proposed. A measure for the NOx current which occurs downstream of the SCR catalytic converter is both calculated and measured with an NOx sensor which has lateral sensitivity to the reagent. The difference between the calculated measure and the measured measure of the NOx current is determined. A reagent signal which defines the metering of the reagent is influenced as a function of the difference. Plausibility checking is provided, during which the reagent quantity which is metered in a predefined time period and the reagent quantity which is converted in the SCR catalytic converter and/or the converted NOx quantity are compared with one another. When a deviation is detected, a correction signal which also influences the reagent signal is made available.

摘要翻译： 一种用于操作其排气区域中至少一个SCR催化转化器的内燃机的方法，用于施加到所述SCR催化转化器的SCR催化转化器中的有助于NOx转化的试剂，以及用于执行该方法的装置 被提出。 利用对试剂具有侧向敏感性的NOx传感器来计算和测量在SCR催化转化器下游发生的NOx电流的测量。 确定计算的测量值与测量的NOx电流的测量值之间的差异。 定义试剂计量的试剂信号作为差异的函数受到影响。 提供了可靠性检查，其中在预定时间段内计量的试剂量和SCR催化转化器中转换的试剂量和/或转化的NOx量彼此进行比较。 当检测到偏差时，也会影响也影响试剂信号的校正信号。

公开(公告)号：US08020374B2

公开(公告)日：2011-09-20

申请号：US12066231

申请日：2006-08-01

申请人： Christian Walz ,  Matthias Loehr ,  Andreas Rudolph

发明人： Christian Walz ,  Matthias Loehr ,  Andreas Rudolph

IPC分类号： F01N3/00

CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9409 ,  B01D53/9495 ,  F01N9/00 ,  F01N9/005 ,  F01N2390/02 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/07 ,  F01N2560/14 ,  F01N2610/146 ,  F01N2900/0408 ,  F01N2900/14 ,  F01N2900/1622 ,  F01N2900/1814 ,  Y02T10/24 ,  Y02T10/47

摘要： invention relates to a method for operating an internal combustion engine, in the exhaust gas section of which is arranged at least one SCR catalytic converter, which is hit with a reagent that contributes to NOx conversion in the SCR catalytic converter, and to a device for implementing the method. At least one measure is calculated for the NOx concentration downstream after the SCR catalytic converter. An NOx sensor, which is arranged downstream after the SCR catalytic converter, generates an exhaust gas sensor signal which corresponds to at least the NOx concentration and optionally, as a result of cross sensitivity, to a reagent slip. A reagent signal, which determines the dosage of reagent, is influenced by a correction signal as a function of the difference and as a function of a measure for the temperature of the SCR catalytic converter.

摘要翻译： 本发明涉及一种用于操作内燃机的方法，其排气部分布置有至少一个SCR催化转化器，其被SCR催化转化器中有助于NOx转化的试剂撞击，并且用于 实施该方法。 在SCR催化转化器之后，对下游的NOx浓度计算至少一个量度。 布置在SCR催化转化器后面的NOx传感器产生对应于至少NOx浓度的排气传感器信号，并且可选地，作为交叉灵敏度的结果，产生对试剂滑移的排气传感器信号。 确定试剂剂量的试剂信号受作为差异的函数的校正信号和作为SCR催化转化器的温度的测量的函数的影响。

公开(公告)号：US07603846B2

公开(公告)日：2009-10-20

申请号：US11236162

申请日：2005-09-26

申请人： Hartmut Lueders ,  Christian Walz ,  Thorsten Mayer ,  Matthias Loehr

发明人： Hartmut Lueders ,  Christian Walz ,  Thorsten Mayer ,  Matthias Loehr

IPC分类号： F01N3/00

CPC分类号： F01N3/208 ,  F01N11/002 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2900/0408 ,  F01N2900/1402 ,  F01N2900/1622 ,  F02D41/146 ,  F02D41/1462 ,  F02D41/1465 ,  F02D2200/0802 ,  F02D2200/0811 ,  Y02T10/24 ,  Y02T10/47

摘要： A method for operating an internal combustion engine whose exhaust area has at least one SCR catalytic converter and a device for carrying out the method are described. The SCR catalytic converter receiving the reagent supports the conversion of the raw NOx emission of the internal combustion engine. At least a measure of the NOx concentration occurring downstream from the SCR catalytic converter is calculated and this value may be used to define a metering signal for the reagent and/or a heating measure for heating the SCR catalytic converter may be initiated. According to a refinement of this arrangement, a difference between the calculated NOx concentration and the sum of the measured NOx concentration and the measured reagent concentration downstream from the SCR catalytic converter is determined, and it is possible to intervene in the determination of the metering signal depending on the difference.

摘要翻译： 描述了一种用于操作其排气区域具有至少一个SCR催化转化器的内燃机和用于执行该方法的装置的方法。 接收该试剂的SCR催化转化器支持内燃机的原始NOx排放的转换。 计算SCR催化转化器下游发生的NOx浓度的量度，并且可以使用该值来定义试剂的计量信号和/或用于加热SCR催化转化器的加热措施。 根据该结构的改进，确定计算出的NOx浓度与测定的NOx浓度与SCR催化剂下游的测定试剂浓度的和之间的差异，并且可以介入计量信号的确定 取决于差异。

公开(公告)号：US20090199541A1

公开(公告)日：2009-08-13

申请号：US12066223

申请日：2006-07-31

申请人： Christian Walz ,  Matthias Loehr ,  Andreas Rudolph

发明人： Christian Walz ,  Matthias Loehr ,  Andreas Rudolph

IPC分类号： F01N11/00 ,  F01N3/10 ,  F01N9/00

CPC分类号： F01N3/208 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0402 ,  F01N2900/08 ,  F01N2900/14 ,  F01N2900/1814 ,  Y02T10/24

摘要： A method for operating an internal combustion engine in whose exhaust gas region at least one SCR catalytic converter is arranged, a reagent which contributes to NOx conversion in the SCR catalytic converter being applied to said SCR catalytic converter, and a device for carrying out the method are proposed. A measure for the NOx current which occurs downstream of the SCR catalytic converter is both calculated and measured with an NOx sensor which has lateral sensitivity to the reagent. The difference between the calculated measure and the measured measure of the NOx current is determined. A reagent signal which defines the metering of the reagent is influenced as a function of the difference. Plausibility checking is provided, during which the reagent quantity which is metered in a predefined time period and the reagent quantity which is converted in the SCR catalytic converter and/or the converted NOx quantity are compared with one another. When a deviation is detected, a correction signal which also influences the reagent signal is made available.

摘要翻译： 一种用于操作其排气区域中至少一个SCR催化转化器的内燃机的方法，用于施加到所述SCR催化转化器的SCR催化转化器中的有助于NOx转化的试剂，以及用于执行该方法的装置 被提出。 利用对试剂具有侧向敏感性的NOx传感器来计算和测量在SCR催化转化器下游发生的NOx电流的测量。 确定计算的测量值与测量的NOx电流的测量值之间的差异。 定义试剂计量的试剂信号作为差异的函数受到影响。 提供了可靠性检查，其中在预定时间段内计量的试剂量和SCR催化转化器中转换的试剂量和/或转化的NOx量彼此进行比较。 当检测到偏差时，也会影响也影响试剂信号的校正信号。

公开(公告)号：US07200989B2

公开(公告)日：2007-04-10

申请号：US10527584

申请日：2003-09-25

申请人： Thorsten Mayer ,  Heinrich Duetsch ,  Christian Walz

发明人： Thorsten Mayer ,  Heinrich Duetsch ,  Christian Walz

IPC分类号： F01N3/00

CPC分类号： F01N3/2066 ,  B01D53/90 ,  B01D53/9431 ,  F01N13/009 ,  F01N13/0097 ,  F01N2610/02 ,  F02B29/0437 ,  F02B37/00 ,  F02M26/05 ,  F02M26/23 ,  Y02T10/24

摘要： An exhaust-gas cleaning system for cleaning the exhaust gas of an internal combustion engine with self ignition and/or with direct fuel injection has at least one oxidizing catalytic converter, disposed in an exhaust conduit of the engine, and has at least one device, disposed downstream of the oxidizing catalytic converter for the selective catalytic reduction of the exhaust gases. A delivery device integrated with the at least one oxidizing catalytic converter delivers a reducing agent into the exhaust-gas stream of the engine. A corresponding method for cleaning the exhaust gases of an internal combustion engine is also disclosed.

摘要翻译： 一种用于自燃和/或直接燃料喷射来清洁内燃机的废气的废气净化系统具有设置在发动机的排气管道中的至少一个氧化催化转化器，并且具有至少一个装置， 设置在氧化催化转化器的下游，用于选择性催化还原废气。 与至少一个氧化催化转化器集成的输送装置将还原剂输送到发动机的废气流中。 还公开了一种用于清洁内燃机的废气的相应方法。