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公开(公告)号：US20110036080A1
公开(公告)日：2011-02-17
申请号：US12990065
申请日：2009-05-29
CPC分类号： B01D46/2474 , B01D46/2425 , B01D46/2429 , B01D46/2466 , B01D2046/2433 , B01D2046/2437 , B01D2046/2496 , C04B35/195 , C04B38/0009 , C04B2111/00793 , C04B2235/3217 , C04B2235/3225 , C04B2235/3418 , C04B2235/3445 , C04B2235/349 , C04B2235/5472 , C04B2235/77 , F01N3/0222 , F01N3/035 , F01N13/0093 , F01N2340/04 , F01N2340/06 , C04B38/0054 , C04B38/0064 , C04B38/0074
摘要： Disclosed are ceramic honeycomb articles which possess a unique microstructure characterized by porosity between 40% and 70%, and the presence of coarse pores exhibiting a depth equivalent to the thickness of the cell wall and a dimensional width, in the plane of the cell wall, exhibiting a diameter that is at least as large as the thickness of the cell wall. The articles exhibits reduced filtration efficiency coupled with low pressure drop across the filter, and a reduced regeneration need. Such ceramic articles are particularly well suited for filtration applications, such as off-road and retro-fit diesel exhaust filters or DPFs. Also disclosed is a method for manufacturing the ceramic article wherein the pore former is capable of forming coarse pores.
摘要翻译： 公开了具有特征在于孔隙率在40％至70％之间的独特微结构的陶瓷蜂窝体制品，并且在细胞壁的平面中存在显示出相当于细胞壁厚度和尺寸宽度的深度的粗糙孔， 具有至少与细胞壁的厚度一样大的直径。 这些制品显示出降低的过滤效率以及过滤器上的低压降，并且减少了再生需求。 这样的陶瓷制品特别适用于过滤应用，例如越野和改装的柴油机排气过滤器或DPF。 还公开了一种用于制造陶瓷制品的方法，其中成孔剂能够形成粗孔。
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公开(公告)号：US20100180561A1
公开(公告)日：2010-07-22
申请号：US12357016
申请日：2009-01-21
IPC分类号： B01D46/00
CPC分类号： B01D46/247 , B01D46/2429 , B01D46/2455 , B01D46/2466 , B01D2046/2433 , B01D2046/2437 , Y10S55/30 , Y10T428/24149 , Y10T428/24157
摘要： A particulate filter may comprise an inlet end, an outlet end, and a plurality of channels disposed and configured to flow fluid from the inlet end to the outlet end, wherein the channels are defined by porous walls configured to trap particulate matter. The porous walls may have a total porosity greater than about 45%, a median pore size ranging from about 13 micrometers to about 20 micrometers, and a pore size distribution such that pores less than 10 micrometers contribute less than about 10% porosity.
摘要翻译： 微粒过滤器可以包括入口端，出口端和多个通道，其布置和构造成将流体从入口端流出到出口端，其中通道由构造成捕集颗粒物质的多孔壁限定。 多孔壁可以具有大于约45％的总孔隙率，中值孔径范围为约13微米至约20微米，孔径分布使得小于10微米的孔贡献小于约10％的孔隙率。
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13.发明授权公开(公告)号：US08418441B2
公开(公告)日：2013-04-16
申请号：US12786758
申请日：2010-05-25
申请人： Suhao He , Achim Karl-Erich Heibel , Wenbin Qiu
发明人： Suhao He , Achim Karl-Erich Heibel , Wenbin Qiu
CPC分类号： F01N3/10 , F01N3/0253 , F01N3/103 , F01N3/106 , F01N3/2033 , F01N9/002 , F01N13/0097 , F01N2560/025 , F01N2560/06 , F01N2610/03 , F01N2610/146 , F01N2900/0408 , F01N2900/0411 , F01N2900/1411 , F01N2900/1618 , Y02T10/26 , Y02T10/47
摘要： Systems and methods for controlling temperature and total hydrocarbon slip in an exhaust system are provided. Control systems can comprise an oxidation catalyst, a particulate filter, a fuel injector, and a processor for controlling a fuel injection based on an oxidation catalyst model. Example system includes a virtual sensor comprising a controller for calculating and providing the total hydrocarbon slip to subsystems for after-treatment management based on modeling the oxidation catalyst. Example methods for controlling the temperature and the total hydrocarbon slip in an exhaust system include the steps of providing an oxidation catalyst model, monitoring a condition of the exhaust system, calculating a hydrocarbon fuel injection flow rate and controlling a fuel injection. The example methods further include the steps of determining an error in the oxidation catalyst model based on the monitored condition and changing the oxidation catalyst model to reduce the error.
摘要翻译： 提供了用于控制排气系统中的温度和总碳氢化合物滑移的系统和方法。 控制系统可以包括氧化催化剂，颗粒过滤器，燃料喷射器和用于基于氧化催化剂模型控制燃料喷射的处理器。 示例系统包括虚拟传感器，该虚拟传感器包括控制器，用于基于对氧化催化剂的建模来计算并提供用于后处理管理的子系统的总碳氢化合物滑移。 用于控制排气系统中的温度和总碳氢化合物滑移的实例方法包括提供氧化催化剂模型，监测排气系统的状况，计算碳氢化合物燃料喷射流量和控制燃料喷射的步骤。 该示例方法还包括基于监测条件确定氧化催化剂模型中的误差并改变氧化催化剂模型以减少误差的步骤。
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公开(公告)号：US08332124B2
公开(公告)日：2012-12-11
申请号：US12625049
申请日：2009-11-24
申请人： Sam George , Suhao He , Achim Karl-Erich Heibel , Min Shen
发明人： Sam George , Suhao He , Achim Karl-Erich Heibel , Min Shen
CPC分类号： F01N3/021 , F01N2510/00 , F01N2510/06 , F01N2900/1606 , Y02T10/20
摘要： Mass based methods and systems for estimating soot load in a filter of an after-treatment system for exhaust stream are provided. The after-treatment system can comprise a sensor, a filter, and a processor configured to estimate soot load in the filter based on a mass based multi-layer model. An example system includes a virtual sensor comprising an estimator for providing information corresponding to a filter outlet NO2 concentration. An example method includes the steps of providing the mass based multi-layer model, passing the exhaust stream through the filter, and using the sensor to monitor a condition of the exhaust stream. The example method further includes the steps of calculating a total regeneration rate based on the multi-layer model by solving a second-order ordinary differential equation with a plurality of parameters using an analytical approach, and estimating the soot load based on the calculated total regeneration rate.
摘要翻译： 提供了用于估计用于排气流的后处理系统的过滤器中的烟灰负荷的基于质量的方法和系统。 后处理系统可以包括传感器，过滤器和被配置为基于基于质量的多层模型来估计过滤器中的烟灰负荷的处理器。 示例系统包括虚拟传感器，其包括用于提供与过滤器出口NO 2浓度相对应的信息的估计器。 一个示例性方法包括以下步骤：提供基于质量的多层模型，使废气流通过过滤器，并使用传感器来监测废气流的状况。 该示例方法还包括以下步骤：基于多层模型，通过使用分析方法求解具有多个参数的二阶常微分方程，并基于所计算的总再生来估计烟灰负荷，计算总再生率 率。
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公开(公告)号：US08612115B2
公开(公告)日：2013-12-17
申请号：US12871474
申请日：2010-08-30
申请人： Sam George , Suhao He , Achim Karl-Erich Heibel
发明人： Sam George , Suhao He , Achim Karl-Erich Heibel
CPC分类号： F01N3/0231 , F01N9/002 , F02D41/0235 , F02D2200/0812
摘要： A method of controlling the operation of a particulate filter in an exhaust gas after-treatment system may comprise calculating a ratio of particulate loading rate to filter regeneration rate using a mass-based soot load estimation scheme and comparing the ratio of particulate loading rate to filter regeneration rate to a predetermined threshold value. The method may further comprise controlling operating conditions of the particulate filter to maintain the ratio of particulate loading rate to filter regeneration rate at a value above the predetermined threshold value.
摘要翻译： 控制废气后处理系统中的颗粒过滤器的操作的方法可以包括使用基于质量的烟灰负荷估计方案来计算颗粒负载率与过滤器再生速率的比率，并将颗粒负载率与过滤器的比率 再生率达到预定阈值。 该方法可以进一步包括控制颗粒过滤器的操作条件以将颗粒负载率与过滤器再生速率的比保持在高于预定阈值的值。
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公开(公告)号：US20110120088A1
公开(公告)日：2011-05-26
申请号：US12625049
申请日：2009-11-24
申请人： Sam George , Suhao He , Achim Karl-Erich Heibel , Min Shen
发明人： Sam George , Suhao He , Achim Karl-Erich Heibel , Min Shen
CPC分类号： F01N3/021 , F01N2510/00 , F01N2510/06 , F01N2900/1606 , Y02T10/20
摘要： Mass based methods and systems for estimating soot load in a filter of an after-treatment system for exhaust stream are provided. The after-treatment system can comprise a sensor, a filter, and a processor configured to estimate soot load in the filter based on a mass based multi-layer model. An example system includes a virtual sensor comprising an estimator for providing information corresponding to a filter outlet NO2 concentration. An example method includes the steps of providing the mass based multi-layer model, passing the exhaust stream through the filter, and using the sensor to monitor a condition of the exhaust stream. The example method further includes the steps of calculating a total regeneration rate based on the multi-layer model by solving a second-order ordinary differential equation with a plurality of parameters using an analytical approach, and estimating the soot load based on the calculated total regeneration rate.
摘要翻译： 提供了用于估计用于排气流的后处理系统的过滤器中的烟灰负荷的基于质量的方法和系统。 后处理系统可以包括传感器，过滤器和被配置为基于基于质量的多层模型来估计过滤器中的烟灰负荷的处理器。 示例系统包括虚拟传感器，其包括用于提供与过滤器出口NO 2浓度相对应的信息的估计器。 一个示例性方法包括以下步骤：提供基于质量的多层模型，使废气流通过过滤器，并使用传感器来监测废气流的状况。 该示例方法还包括以下步骤：基于多层模型，通过使用分析方法求解具有多个参数的二阶常微分方程，并基于所计算的总再生来估计烟灰负荷，计算总再生率 率。
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公开(公告)号：US20110132194A1
公开(公告)日：2011-06-09
申请号：US12994565
申请日：2009-05-15
IPC分类号： B01D46/00
CPC分类号： B01D46/2455 , B01D46/2425 , B01D46/2429 , B01D46/2451 , B01D46/2459 , B01D46/2466 , B01D46/247 , B01D46/2474 , B01D2046/2433 , B01D2046/2437 , B01D2046/2492 , B01D2046/2496 , B01D2279/30 , F01N3/021 , F01N3/2828 , F01N13/009 , F02B37/00 , Y02T10/144 , Y02T10/20
摘要： A partial wall-flow filter having some unplugged flow-through channels and some plugged channels. Desirable combinations of filtration efficiency and back pressure may be provided by combinations of t wall≦305 urn, MPD≦20 μm, % P≧50%, and CD≧250 cpsi wherein t wall is the transverse thickness of the porous walls, MPD is a mean pore diameter of the porous walls, % P is the total porosity of the porous walls, and CD is the cell density of the channels. In one embodiment, some of the plugged channels are located adjacent to the inlet end and some are located adjacent to the outlet end. Systems and method including the partial wall-flow filter are also described.
摘要翻译： 部分壁流过滤器具有一些未堵塞的流通通道和一些堵塞通道。 过滤效率和背压的理想组合可以通过t壁和nlE，305μm，MPD和nlE;20μm，％P≥50％和CD≥250cpsi的组合来提供，其中t壁是多孔壁的横向厚度，MPD是 多孔壁的平均孔径，％P是多孔壁的总孔隙率，CD是通道的孔密度。 在一个实施例中，一些堵塞的通道位于入口端附近并且一些位于邻近出口端。 还描述了包括部分壁流式过滤器的系统和方法。
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公开(公告)号：US20090049815A1
公开(公告)日：2009-02-26
申请号：US11895312
申请日：2007-08-24
CPC分类号： B01D46/2474 , B01D46/2429 , B01D46/244 , B01D46/2451 , B01D46/2466 , B01D46/247 , B01D2046/2433 , B01D2046/2437 , B01D2046/2496 , B01D2279/30 , F01N3/0222
摘要： A thin-walled porous ceramic wall-flow filter is disclosed. The filter produces a relatively lower pressure drop coupled with relatively high initial filtration efficiency (FE0), and may enable packaging the filter in a smaller volume. The filter includes a plurality of porous ceramic walls forming cell channels. At least some of the cells are plugged forcing some exhaust gases through the walls, thereby filtering out entrained particulates. The walls have a wall thickness (Twall) wherein 102 μm≦Twall
摘要翻译： 公开了一种薄壁多孔陶瓷壁流式过滤器。 过滤器产生相对较低的压降以及相对较高的初始过滤效率（FE0），并且可以使过滤器能够以更小的体积包装。 该过滤器包括多个多孔陶瓷壁，形成单元通道。 至少一些电池被堵塞，迫使一些废气穿过壁，从而过滤掉夹带的颗粒。 壁具有壁厚（T wall），其中102mum <= T wall <279μm，中值孔径（MPD），并且其中10
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公开(公告)号：US08673064B2
公开(公告)日：2014-03-18
申请号：US12994565
申请日：2009-05-15
CPC分类号： B01D46/2455 , B01D46/2425 , B01D46/2429 , B01D46/2451 , B01D46/2459 , B01D46/2466 , B01D46/247 , B01D46/2474 , B01D2046/2433 , B01D2046/2437 , B01D2046/2492 , B01D2046/2496 , B01D2279/30 , F01N3/021 , F01N3/2828 , F01N13/009 , F02B37/00 , Y02T10/144 , Y02T10/20
摘要： A partial wall-flow filter having some unplugged flow-through channels and some plugged channels. Desirable combinations of filtration efficiency and back pressure may be provided by combinations of t wall≦305 urn, MPD≦20 μm, % P≧50%, and CD≧250 cpsi wherein t wall is the transverse thickness of the porous walls, MPD is a mean pore diameter of the porous walls, % P is the total porosity of the porous walls, and CD is the cell density of the channels. In one embodiment, some of the plugged channels are located adjacent to the inlet end and some are located adjacent to the outlet end. Systems and method including the partial wall-flow filter are also described.
摘要翻译： 部分壁流过滤器具有一些未堵塞的流通通道和一些堵塞通道。 过滤效率和背压的理想组合可以通过t壁@305μm，MPD @20μm，％P> = 50％和CD> = 250cpsi的组合来提供，其中t壁是多孔壁的横向厚度， MPD是多孔壁的平均孔径，％P是多孔壁的总孔隙率，CD是通道的孔密度。 在一个实施例中，一些堵塞的通道位于入口端附近并且一些位于邻近出口端。 还描述了包括部分壁流式过滤器的系统和方法。
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公开(公告)号：US08512433B2
公开(公告)日：2013-08-20
申请号：US12990065
申请日：2009-05-29
CPC分类号： B01D46/2474 , B01D46/2425 , B01D46/2429 , B01D46/2466 , B01D2046/2433 , B01D2046/2437 , B01D2046/2496 , C04B35/195 , C04B38/0009 , C04B2111/00793 , C04B2235/3217 , C04B2235/3225 , C04B2235/3418 , C04B2235/3445 , C04B2235/349 , C04B2235/5472 , C04B2235/77 , F01N3/0222 , F01N3/035 , F01N13/0093 , F01N2340/04 , F01N2340/06 , C04B38/0054 , C04B38/0064 , C04B38/0074
摘要： Disclosed are ceramic honeycomb articles which possess a unique microstructure characterized by porosity between 40% and 70%, and the presence of coarse pores exhibiting a depth equivalent to the thickness of the cell wall and a dimensional width, in the plane of the cell wall, exhibiting a diameter that is at least as large as the thickness of the cell wall. The articles exhibits reduced filtration efficiency coupled with low pressure drop across the filter, and a reduced regeneration need. Such ceramic articles are particularly well suited for filtration applications, such as off-road and retro-fit diesel exhaust filters or DPFs. Also disclosed is a method for manufacturing the ceramic article wherein the pore former is capable of forming coarse pores.
摘要翻译： 公开了具有特征在于孔隙率在40％至70％之间的独特微结构的陶瓷蜂窝体制品，并且在细胞壁的平面中存在显示出相当于细胞壁厚度和尺寸宽度的深度的粗糙孔， 具有至少与细胞壁的厚度一样大的直径。 这些制品显示出降低的过滤效率以及过滤器上的低压降，并且减少了再生需求。 这样的陶瓷制品特别适用于过滤应用，例如越野和改装的柴油机排气过滤器或DPF。 还公开了一种用于制造陶瓷制品的方法，其中成孔剂能够形成粗孔。
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