公开(公告)号：US20090226356A1

公开(公告)日：2009-09-10

申请号：US12417190

申请日：2009-04-02

申请人： ROLF BRUCK ,  PETER HIRTH ,  THOMAS HARIG ,  MARC BRUGGER

发明人： ROLF BRUCK ,  PETER HIRTH ,  THOMAS HARIG ,  MARC BRUGGER

IPC分类号： C01C1/02 ,  F22B1/30

CPC分类号： F01N3/2066 ,  B01B1/005 ,  F01N2240/40 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/14 ,  H05B3/40 ,  H05B2203/02 ,  Y02T10/24

摘要： A device for evaporating at least one of the following reactants: a reducing agent precursor solution and a reducing agent precursor, includes at least one electrically heatable heating zone having at least one electrically operable heating element with a heating resistor that is self-regulated about a significant temperature. A method and the device for evaporating a reactant allow a simple control of an evaporation process, especially of a urea/water solution, to provide a reducing agent, especially in an SCR process. The heating resistors have a significant temperature that corresponds to a control temperature of the heating resistor. The need for additional control electronics can be removed by adjusting a correspondingly steep curve within a range.

摘要翻译： 用于蒸发以下反应物中的至少一种的装置：还原剂前体溶液和还原剂前体，包括至少一个电可加热加热区，其具有至少一个电可操作的加热元件，该加热电阻器具有自调节 显着的温度。 用于蒸发反应物的方法和装置允许简单地控制蒸发过程，特别是尿素/水溶液，以提供还原剂，特别是在SCR方法中。 加热电阻器具有对应于加热电阻器的控制温度的显着温度。 可以通过在一个范围内调整相应的陡峭曲线来消除对附加控制电子设备的需求。

公开(公告)号：US20120304626A1

公开(公告)日：2012-12-06

申请号：US13548419

申请日：2012-07-13

申请人： WOLFGANG MAUS ,  LUDWIG WIERES ,  JAN HODGSON ,  ROLF BRUCK

发明人： WOLFGANG MAUS ,  LUDWIG WIERES ,  JAN HODGSON ,  ROLF BRUCK

IPC分类号： F01N3/00 ,  G01F23/14

CPC分类号： F01N3/208 ,  F01N2610/02 ,  F01N2610/1406 ,  F01N2900/1812 ,  F01N2900/1814 ,  G01F1/708 ,  Y02A50/2325 ,  Y02T10/24

摘要： A method for determining an amount of liquid removed from a tank per unit time includes discontinuously feeding the liquid to exhaust gas of an internal combustion engine by at least feeding the liquid through an injection line into the exhaust gas, measuring pressures simultaneously at least at two points in the injection line and determining an amount of liquid fed in per unit time from the measured pressures. The amount of liquid removed between a first point in time and a second point in time is further derived by integrating the amounts of liquid removed per unit time over a period of time from the first point in time to the second point in time. The method allows the precise consumption of the liquid to be calculated and the remaining amount of liquid in the tank to be additionally determined. On-board diagnosis is further possible with the method.

摘要翻译： 用于确定每单位时间从罐中去除的液体的量的方法包括通过至少将液体通过注入管线输送到废气中来将液体不连续地供给内燃机的排气，同时至少测量两个压力 注入线中的点，并根据测量的压力确定每单位时间内进料的液体量。 在第一时间点和第二时间点之间移除的液体量进一步通过将从第一时间点到第二时间点的时间段内的每单位时间去除的液体量积分。 该方法允许要计算的液体的精确消耗，并且另外确定罐中的液体的剩余量。 该方法可进一步实现车载诊断。