公开(公告)号：US20110011178A1

公开(公告)日：2011-01-20

申请号：US12744438

申请日：2008-10-31

申请人： Markus Ulrich ,  Vlatko Babic ,  Guenther Krenz ,  Rainer Haeberer ,  Wolf-Ingo Ratzel ,  Bruno Hezel ,  Michael Gerlach ,  Vaclav Straus

发明人： Markus Ulrich ,  Vlatko Babic ,  Guenther Krenz ,  Rainer Haeberer ,  Wolf-Ingo Ratzel ,  Bruno Hezel ,  Michael Gerlach ,  Vaclav Straus

IPC分类号： G01F23/00 ,  B23P19/00

CPC分类号： G01F23/242

摘要： The invention relates to a sensor arrangement for determining a tank fill level of a liquid, especially a reducing agent for removing nitrogen from the exhaust gases of an internal combustion engine, which liquid is contained in a tank, at least two electrically conductive measuring electrodes being at least partially embedded in a carrier that is produced of an electrically non-conductive material. The sensor arrangement includes a temperature sensor, especially a resistor with negative temperature coefficient being used as a temperature sensor, which is integrated into the carrier.

摘要翻译： 本发明涉及一种用于确定液体的罐填充液位的传感器装置，特别是用于从内燃机的废气中除去氮气的还原剂，该液体包含在罐中，至少两个导电测量电极是 至少部分地嵌入由非导电材料制成的载体中。 传感器装置包括温度传感器，特别是具有负温度系数的电阻器用作温度传感器，其被集成到载体中。

公开(公告)号：US07617674B2

公开(公告)日：2009-11-17

申请号：US11255292

申请日：2005-10-20

申请人： Michael Gerlach

发明人： Michael Gerlach

IPC分类号： F01N3/00

CPC分类号： F01N3/2066 ,  B01D53/90 ,  B01D53/9495 ,  F01N2610/02 ,  F02D41/145 ,  F02D41/1462 ,  Y02T10/24

摘要： A method for operating an exhaust-gas treatment device of an internal combustion engine and a device for carrying out the method, in which a reagent, whose pressure is measured by a reagent pressure sensor, is introduced into the exhaust-gas area upstream from the exhaust-gas treatment device. First the reagent pressure is brought to the exhaust-gas pressure which prevails in the exhaust-gas area upstream from the exhaust-gas treatment device. Then the pressure difference between the reagent pressure and the sum of the exhaust-gas pressure and the ambient air pressure is compared to a predefined pressure difference threshold, and if the pressure difference threshold is exceeded an error signal is supplied. The procedure contributes to an exact metering of the reagent through a diagnosis of the reagent pressure sensor.

摘要翻译： 一种用于操作内燃机的排气处理装置的方法和用于实施该方法的装置，其中将由试剂压力传感器测量的压力的试剂引入到 废气处理装置。 首先，使试剂压力达到排气处理装置上游的废气区域中的排气压力。 然后将试剂压力和排气压力与环境空气压力之和的压差与预定的压力差阈值进行比较，并且如果超过压差阈值，则提供误差信号。 该过程有助于通过诊断试剂压力传感器来精确计量试剂。

公开(公告)号：US08347603B2

公开(公告)日：2013-01-08

申请号：US11120496

申请日：2005-05-02

申请人： Stefan Wickert ,  Torsten Handler ,  Michael Gerlach

发明人： Stefan Wickert ,  Torsten Handler ,  Michael Gerlach

IPC分类号： F01N3/00

CPC分类号： F01N3/2066 ,  B01D53/90 ,  B01D53/9495 ,  F01N11/00 ,  F01N2550/05 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2900/1814 ,  F02D41/1462 ,  F02D41/1463 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

摘要： A method for metering a reagent which an emission control device situated in the exhaust duct of an internal combustion engine requires for removing at least one exhaust gas component from the exhaust gas and a device for executing the method are described. The fluid level of the reagent stored in a reagent tank is measured. The measured change in the fluid level is compared to at least one measure for the change in the fluid level calculated as a function of consumption. An error signal is output when the comparison result exceeds a predefined threshold value. This approach enables reliable information to be provided about the fluid level of the reagent in the reagent tank.

摘要翻译： 一种计量试剂的方法，其中位于内燃机的排气管道中的排放控制装置需要从排气中去除至少一种废气组分，以及用于执行该方法的装置。 测量存储在试​​剂罐中的试剂的液面。 将测量的液位变化与作为消耗函数计算的液位变化的至少一个度量进行比较。 当比较结果超过预定义的阈值时，输出错误信号。 该方法能够提供关于试剂罐中的试剂的液面的可靠信息。

公开(公告)号：US08176726B2

公开(公告)日：2012-05-15

申请号：US11579513

申请日：2005-04-01

申请人： Michael Gerlach

发明人： Michael Gerlach

IPC分类号： F01N3/00

CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  F01N9/00 ,  F01N2560/08 ,  F01N2610/02 ,  F01N2900/1808 ,  Y02T10/24 ,  Y02T10/47

摘要： A method for introducing a reagent medium into an exhaust gas conduit of an internal combustion engine, and an apparatus for carrying out the method. Provision is made for a diagnosis of the pressure sensor. In at least one first time interval in which a steady pressure state is expected, a check is made as to whether the pressure signal at least approximately corresponds to the steady-state pressure. In at least one second time interval in which a pressure change occurs, a check is made as to whether the pressure signal at least approximately corresponds to a predetermined test pressure and/or at least approximately exhibits a predetermined change with respect to the steady-state pressure. A fault signal is supplied if at least one of the conditions is not met.

摘要翻译： 一种将试剂介质引入内燃机的排气管道的方法，以及用于执行该方法的装置。 提供了压力传感器的诊断。 在期望稳定压力状态的至少一个第一时间间隔中，检查压力信号至少近似对应于稳态压力。 在发生压力变化的至少一个第二时间间隔中，检查压力信号至少近似对应于预定试验压力和/或至少近似表现出相对于稳态的预定变化 压力。 如果不满足条件中的至少一个条件，则提供故障信号。

公开(公告)号：US20070163238A1

公开(公告)日：2007-07-19

申请号：US10552864

申请日：2004-03-11

申请人： Michael Gerlach

发明人： Michael Gerlach

IPC分类号： F01N3/00 ,  F01N3/10

CPC分类号： F01N3/2066 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  F01N2610/02 ,  Y02T10/24

摘要： A method for metering a reagent into the exhaust gas flow of an internal combustion engine is provided, in which the reagent is guided in at least one component and in which a measure for the temperature of the component is recorded. The measure for the temperature is compared to a predefined temperature threshold value. A counter counts the number of times the threshold is exceeded. If the counter state exceeds a predefined count threshold value, a service signal is emitted. The temperature threshold value is fixed, for example, at the freezing temperature of the reagent. One embodiment provides that the counter counts an exceeding of the temperature threshold value only when the component is filled with the reagent.

摘要翻译： 提供了一种将试剂计量​​到内燃机的废气流中的方法，其中试剂在至少一个部件中被引导，并且其中记录了部件温度的措施。 将温度测量与预定义的温度阈值进行比较。 计数器计数超出阈值的次数。 如果计数器状态超过预定义的计数阈值，则发出服务信号。 温度阈值例如在试剂的冷冻温度下固定。 一个实施例提供的是，只有当组件填充有试剂时，计数器才计数超过温度阈值。

公开(公告)号：US20060028725A1

公开(公告)日：2006-02-09

申请号：US10910211

申请日：2004-08-03

申请人： Michael Gerlach ,  Gerald Nkwantah ,  Jonathan Mack ,  Pradnya Nagarkar ,  Philip Ralli

发明人： Michael Gerlach ,  Gerald Nkwantah ,  Jonathan Mack ,  Pradnya Nagarkar ,  Philip Ralli

IPC分类号： G02F1/1335

CPC分类号： G02B5/3033

摘要： An improved method of forming an intrinsic polarizer, referred to as a K-type polarizer, includes stretching a polymeric film a first stretching step. The polymeric film comprises a hydroxylated linear polymer which is converted after the first stretching step to form dichroic, copolymer polyvinylene blocks aligned in the polymeric film. The polymeric film is stretched in a second stretching step while converting the hydroxylated linear polymer. This method produces an improved K-type polarizer with excellent polarizing and color characteristics. For example, the dichroic ratio is higher than 100, the color shift for light passed through the polarizer in a crossed configuration is low, and the absorption of light in the blue region of the visible spectrum is more than one half of the absorption for light in the middle of the visible spectrum.