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    Method and device for calibrating an exhaust gas sensor
    1.
    发明授权
    Method and device for calibrating an exhaust gas sensor 有权

    公开(公告)号：US09804137B2

    公开(公告)日：2017-10-31

    申请号：US14713507

    申请日：2015-05-15

    申请人： MAN Truck & Bus AG

    发明人： Andreas Doering

    IPC分类号： G01N33/00 ,  G01N27/417

    CPC分类号： G01N33/0006 ,  G01N27/4175

    摘要： A method for calibrating an exhaust gas sensor arranged in a measurement chamber, includes providing a measurement chamber in or adjacent to an exhaust channel of an internal combustion engine. At the start of a calibration phase, exhaust gas present in the measurement chamber is displaced by a filling of the measurement chamber with calibration gas, and at the end of the calibration phase, exhaust gas diffuses into and/or is introduced into the measurement chamber.

    Method and device for operating a sensor for determining exhaust gas components, in particular for a motor vehicle
    2.
    发明授权
    Method and device for operating a sensor for determining exhaust gas components, in particular for a motor vehicle 有权
    用于操作用于确定废气部件的传感器的方法和装置，特别是用于机动车辆

    公开(公告)号：US09140625B2

    公开(公告)日：2015-09-22

    申请号：US14075625

    申请日：2013-11-08

    申请人： MAN Truck & Bus AG

    发明人： Andreas Doering

    IPC分类号： G01M15/10 ,  F01N13/00 ,  F02D41/14 ,  F02B37/16 ,  F02D41/22 ,  F02D41/00

    CPC分类号： G01M15/102 ,  F01N13/008 ,  F01N2550/14 ,  F01N2560/02 ,  F01N2560/05 ,  F02B37/168 ,  F02D41/0007 ,  F02D41/1463 ,  F02D41/222 ,  Y02T10/144

    摘要： A method and a device for operating a sensor is provided in an exhaust gas system of an internal combustion engine for determining the emissions contained in an exhaust gas flow, in particular, of nitrogen oxides, ammonia, oxygen and/or unburnt carbon, with the exhaust gas flow acting on the sensor during measurement phases. Between the measurement phases, the sensor is at least largely kept free from the exhaust gas flow, wherein the duration and/or the frequency of the measurement phases can be set as a function of operating parameters of the internal combustion engine and/or of the exhaust gas regulation system. A measurement space which surrounds the sensor is exposed to a pressurized flushing gas immediately after a measurement phase, as a result of which the exhaust gas present in the measurement space is displaced out of the measurement space into the exhaust gas flow.

    摘要翻译： 用于操作传感器的方法和装置设置在内燃机的排气系统中，用于确定废气流中特别是氮氧化物，氨，氧气和/或未燃碳的排放物，其中 在测量阶段，作用在传感器上的废气流。 在测量阶段之间，传感器至少在很大程度上保持与废气流无关，其中测量阶段的持续时间和/或频率可以被设定为内燃机的操作参数和/或 废气调节系统。 围绕传感器的测量空间在测量阶段之后立即暴露于加压冲洗气体，结果存在于测量空间中的废气从测量空间排出到废气流中。

    Device and method for regenerating a particulate filter arranged in the exhaust section of an internal combustion engine
    4.
    发明授权
    Device and method for regenerating a particulate filter arranged in the exhaust section of an internal combustion engine 有权

    公开(公告)号：US10240498B2

    公开(公告)日：2019-03-26

    申请号：US14738173

    申请日：2015-06-12

    申请人： MAN TRUCK & BUS AG

    发明人： Andreas Doering

    IPC分类号： F01N3/023 ,  F01N3/025 ,  F01N3/027 ,  F01N9/00 ,  F01N13/00 ,  F01N3/08 ,  F01N11/00 ,  F01N3/30

    摘要： A device and a method for regenerating a particulate filter that is arranged in the exhaust tract of an internal combustion engine. There is disposed at least one NO oxidation catalytic converter upstream of the particulate filter for the oxidation of NO, and in particular to form NO2. At least one heating device is also provided upstream of the particulate filter, by way of which an exhaust-gas flow that is conducted towards the particulate filter can be heated to a defined temperature in accordance with defined regeneration parameters, in particular in accordance with a degree of loading of the particulate filter and/or in accordance with an efficiency of an NO2-based regeneration of the particulate filter by way of an NO2 quantity formed in the at least one NO oxidation catalytic converter.

    Method for use in conjunction with an exhaust-gas aftertreatment system
    6.
    发明授权
    Method for use in conjunction with an exhaust-gas aftertreatment system 有权
    与废气后处理系统结合使用的方法

    公开(公告)号：US09267408B2

    公开(公告)日：2016-02-23

    申请号：US13853527

    申请日：2013-03-29

    申请人： MAN Truck & Bus AG

    发明人： Andreas Doering

    IPC分类号： F01N3/00 ,  F01N3/08 ,  F01N3/20 ,  F01N3/023 ,  F01N13/00 ,  F02D41/02 ,  F02D41/38 ,  F02D41/40 ,  B01D53/94

    CPC分类号： F01N3/08 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/9477 ,  B01D2251/2062 ,  B01D2255/20723 ,  B01D2255/50 ,  B01D2255/911 ,  B01D2255/9155 ,  B01D2258/012 ,  F01N3/0231 ,  F01N3/208 ,  F01N13/009 ,  F02D41/0275 ,  F02D41/029 ,  F02D41/3836 ,  F02D41/401 ,  Y02T10/24 ,  Y02T10/44

    摘要： A method for an exhaust-gas aftertreatment system which is operated on an internal combustion engine operated with an excess of air, in which exhaust-gas aftertreatment system soot particles are separated out of exhaust gas by a particle filter and the particle filter is regenerated with the aid of NO2 formed on an NO oxidation catalytic converter mounted upstream of the particle filter. A reduction of the nitrogen oxides is realized by a reducing agent which splits to form ammonia being metered into the exhaust-gas flow upstream of the particle filter and the particle filter is laden with a catalytically active material for the selective catalytic reduction of nitrogen oxides. The NH3 to NOx ratio (feed ratio α) is varied in phases by changing the nitrogen oxide untreated emissions and/or the supplied amount of reducing agent, in such a way that the feed ratio α alternates in phases between values of greater than one and values of less than one.

    摘要翻译： 一种废气后处理系统的方法，该排气后处理系统在用过量的空气操作的内燃机上运行，​​其中废气后处理系统烟灰颗粒通过颗粒过滤器从排气中分离出来，并且颗粒过滤器用 在安装在颗粒过滤器上游的NO氧化催化转化器上形成的NO 2的帮助。 氮氧化物的还原通过分解成形成氨的还原剂来实现，该还原剂被计量到在颗粒过滤器上游的排气流中，并且颗粒过滤器装载有用于氮氧化物的选择性催化还原的催化活性材料。 通过改变氮氧化物未经处理的排放物和/或还原剂的供给量，NH 3与NO x比（进料比α）的相位变化，使得进料比α在大于1的值之间相位交替， 值小于1。

    Method for use in connection with an exhaust gas post-treatment system
    8.
    发明授权
    Method for use in connection with an exhaust gas post-treatment system 有权
    用于与废气后处理系统相关的方法

    公开(公告)号：US08623306B2

    公开(公告)日：2014-01-07

    申请号：US13733252

    申请日：2013-01-03

    申请人： MAN Truck & Bus AG

    发明人： Andreas Doering

    IPC分类号： B01D53/94 ,  F01N3/18 ,  F01N3/20

    CPC分类号： B01D53/9409 ,  F01N3/106 ,  F01N3/208 ,  F01N2610/02 ,  F01N2900/1402 ,  F02D41/0055 ,  F02D41/025 ,  F02D41/027 ,  F02D41/1475 ,  F02D41/401 ,  F02D41/402 ,  Y02T10/24

    摘要： A method for use with an exhaust gas post-treatment system on an internal combustion engine operated with air surplus includes reducing nitrous oxides in that an ammonia-separating reducing agent is added to the exhaust gas flow upstream of a catalyst which is charged with a catalyst material for selective catalytic reduction of nitrous oxides. The method further provides that the NH3 to NOx ratio (feed ratio α) is varied in phases by changing the untreated nitrous oxide emissions of the internal combustion engine such that the feed ratio α oscillates in phases about a predefined value.

    摘要翻译： 一种与空气过剩操作的内燃机上的废气后处理系统一起使用的方法包括还原一氧化二氮，因为在催化剂上游的排气流中加入氨分离还原剂，该催化剂装有催化剂 选择性催化还原氧化亚氮的材料。 该方法还提供了通过改变内燃机的未处理的一氧化二氮排放量使得NH 3与NO x比（进料比α）在相位上变化，使得进料比α以相对于预定值的相位相位振荡。

    Method and apparatus for converting an alcohol into a motor fuel mixture
    9.
    发明授权
    Method and apparatus for converting an alcohol into a motor fuel mixture 有权

    公开(公告)号：US10144890B2

    公开(公告)日：2018-12-04

    申请号：US15419247

    申请日：2017-01-30

    申请人： MAN Truck & Bus AG

    发明人： Andreas Doering

    IPC分类号： C10L1/02 ,  F02M27/02

    摘要： A method and apparatus for converting an alcohol into a fuel mixture which consists of alcohol, ether and water and is suitable for operating a combustion engine, in particular an internal combustion engine in a motor vehicle, converts the alcohol into the fuel mixture in a reactor at a suitable reaction temperature. The mixing ratio of alcohol fraction, ether fraction and water fraction in the fuel mixture is adjusted by controlling at least one reaction parameter of a reaction taking place in the reactor.