-
公开(公告)号：US08464523B2
公开(公告)日：2013-06-18
申请号：US12722846
申请日：2010-03-12
IPC分类号： F01N3/00
CPC分类号： F01N9/002 , F01N3/023 , F01N3/05 , F01N3/101 , F01N13/011 , F01N2900/1606 , Y02T10/22 , Y02T10/47
摘要： A regeneration system includes a particulate matter (PM) filter. The PM filter has an upstream end that receives an exhaust gas from an engine. An air pump circuit directs ambient air to a first exhaust conduit upstream from the PM filter. A control module determines a current soot loading level of the PM filter. The control module also at least one of operates the engine in a rich mode and activates an air pump of the air pump circuit when the current soot loading level is greater than a predetermined soot loading level.
摘要翻译： 再生系统包括颗粒物质（PM）过滤器。 PM过滤器具有从发动机接收废气的上游端。 空气泵电路将环境空气引导到PM过滤器上游的第一排气导管。 控制模块确定PM过滤器的当前烟灰负载水平。 所述控制模块还至少一个在富模式下操作所述发动机，并且当当前烟灰负载水平大于预定烟灰负荷水平时启动所述空气泵回路的空气泵。
-
公开(公告)号：US20130111886A1
公开(公告)日：2013-05-09
申请号：US13290671
申请日：2011-11-07
IPC分类号： F01N9/00
CPC分类号： F01N3/106 , F01N3/0814 , F01N3/0842 , F01N3/108 , F01N3/2013 , F01N3/2033 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2900/1404 , Y02T10/24 , Y02T10/26 , Y02T10/47
摘要： An exhaust gas treatment system for an internal combustion engine is provided, and includes an exhaust gas conduit, an upstream selective catalytic reduction (“SCR”) device, an electrically heated catalyst (“EHC”) device, an oxidation catalyst (“OC”) device, a downstream SCR device, and a control module. The EHC device is in fluid communication with the exhaust gas conduit and is configured to receive the exhaust gas. The EHC device is located downstream of the upstream SCR device and is selectively activated to produce heat. The OC device is in fluid communication with the exhaust gas conduit, and is selectively heated by the EHC device. At least one of the EHC device and the OC device have a NOx adsorber catalyst disposed thereon for selectively adsorbing NOx below a threshold temperature and substantially releasing NOx above the threshold temperature.
摘要翻译： 提供了一种用于内燃机的废气处理系统，包括排气导管，上游选择性催化还原（SCR）装置，电加热催化剂（“EHC”）装置，氧化催化剂（“OC” ）设备，下游SCR设备和控制模块。 EHC装置与废气导管流体连通并且被配置为接收废气。 EHC装置位于上游SCR装置的下游，并被选择性地激活以产生热量。 OC装置与废气导管流体连通，并被EHC装置选择性加热。 EHC装置和OC装置中的至少一个具有设置在其上的用于选择性地吸附低于阈值温度的NOx并基本上释放高于阈值温度的NOx的NOx吸附剂催化剂。
-
公开(公告)号：US20130074474A1
公开(公告)日：2013-03-28
申请号：US13242811
申请日：2011-09-23
IPC分类号： F01N3/18
CPC分类号： F01N3/323 , F01N3/208 , F01N2610/146 , F01N2900/1622 , Y02T10/24
摘要： An exhaust treatment system for an engine includes a selective catalyst reduction (SCR) treatment module that controls a valve and an air pump to deliver air to an SCR catalyst in response to the engine turning off. An SCR loading module controls the valve and the air pump to deliver air to an exhaust manifold and controls a dosing system to deliver a dosing agent upstream of the SCR catalyst when a temperature of the SCR catalyst is less than a temperature threshold and the SCR catalyst is not saturated with ammonia.
摘要翻译： 用于发动机的废气处理系统包括选择性催化剂还原（SCR）处理模块，其响应于发动机关闭而控制阀和空气泵将空气输送到SCR催化剂。 SCR加载模块控制阀和空气泵将空气输送到排气歧管，并且当SCR催化剂的温度小于温度阈值并且SCR催化剂时控制计量系统以在SCR催化剂的上游输送计量剂 不饱和氨。
-
公开(公告)号：US20130061576A1
公开(公告)日：2013-03-14
申请号：US13228932
申请日：2011-09-09
IPC分类号： F01N9/00
CPC分类号： F01N3/103 , F01N3/0231 , F01N3/106 , F01N3/2026 , F01N3/208 , F01N13/009 , F01N13/0097 , Y02T10/24 , Y02T10/26
摘要： An exhaust gas treatment system for an internal combustion engine is provided, including an exhaust gas conduit, an oxidation catalyst (“OC”) device, an electrically heated catalyst (“EHC”) device, a selective catalytic reduction (“SCR”) device, and a control module. The OC device is in fluid communication with the exhaust gas conduit. The OC device adsorbs hydrocarbons and is selectively activated to induce oxidation of the hydrocarbons in the exhaust gas. The EHC device is in fluid communication with the exhaust gas conduit and is configured to receive the exhaust gas. The EHC device is located within the OC device and is selectively activated to produce heat and induce further oxidation of the exhaust gas. The EHC device has an oxidation catalyst compound disposed thereon for converting nitrogen oxide (“NO”) to nitrogen dioxide (“NO2”).
摘要翻译： 提供了一种用于内燃机的废气处理系统，包括废气导管，氧化催化剂（OC）装置，电加热催化剂（EHC）装置，选择性催化还原（SCR）装置和控制模块）。 OC装置与废气导管流体连通。 OC装置吸附碳氢化合物并选择性地活化以引起废气中的烃的氧化。 EHC装置与废气导管流体连通，并被配置成接收废气。 EHC装置位于OC装置内，并被选择性地激活以产生热量并引起废气的进一步氧化。 EHC装置具有氧化催化剂化合物，用于将氮氧化物（NO）转化为二氧化氮（NO2）。
-
公开(公告)号：US08341945B2
公开(公告)日：2013-01-01
申请号：US12496009
申请日：2009-07-01
IPC分类号： F01N3/00
摘要： A control system comprises a particulate matter (PM) filter, an electric heater, a first heating module, and a second heating module. The PM filter includes M zones that filter PM from exhaust gas. The electric heater includes M segments corresponding to the M zones that heat exhaust gas input to selected ones of the M zones when activated. The first heating module activates N of the M segments to heat exhaust gas input to N of the M zones to regenerate the N zones. The second heating module operates in one of a first mode and a second mode to regenerate other ones of the M zones after the N zones are regenerated. The first mode includes adjusting an air-fuel ratio of the exhaust gas. The second mode includes activating other ones of the M segments to heat exhaust gas input to other ones of the M zones.
摘要翻译： 控制系统包括颗粒物质（PM）过滤器，电加热器，第一加热模块和第二加热模块。 PM过滤器包括从废气中过滤PM的M个区域。 电加热器包括对应于M个区域的M段，其在被激活时将排气输入到选定的M个区域。 第一加热模块激活M段中的N个以加热输入到M个区域中的N个的废气，以再生N个区域。 第二加热模块在第一模式和第二模式之一中操作，以在再生N个区域之后再生M个区域中的其他区域。 第一模式包括调节废气的空燃比。 第二模式包括激活M段中的其他段以加热输入到M个区中的其它区的废气。
-
96.发明授权公开(公告)号：US08292987B2
公开(公告)日：2012-10-23
申请号：US12209298
申请日：2008-09-12
申请人： Eugene V. Gonze , Michael J. Paratore, Jr. , Kevin W. Kirby , Amanda Phelps , Daniel J. Gregoire
发明人： Eugene V. Gonze , Michael J. Paratore, Jr. , Kevin W. Kirby , Amanda Phelps , Daniel J. Gregoire
IPC分类号： B01D46/46
CPC分类号： F01N3/027 , F01N3/035 , F01N13/009
摘要： A system includes a particulate matter (PM) filter with an upstream end for receiving exhaust gas, a downstream end and zones. The system also includes a heating element. A control module selectively activates the heating element to inductively heat one of the zones.
摘要翻译： 系统包括具有用于接收废气的上游端的颗粒物质（PM）过滤器，下游端和区域。 该系统还包括加热元件。 控制模块选择性地激活加热元件以感应加热其中一个区域。
-
公开(公告)号：US08291694B2
公开(公告)日：2012-10-23
申请号：US11950576
申请日：2007-12-05
IPC分类号： F01N3/027
CPC分类号： F01N3/027 , F01N3/0253 , F01N3/035 , F01N9/00 , F01N9/002 , F01N2240/16 , F01N2560/06 , F01N2900/14 , Y02T10/47
摘要： An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine. A grid of electrically resistive material is applied to an exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF. A catalyst coating applied to at least one of the PF and the grid. A control module estimates a temperature of the grid and controls the engine to produce a desired exhaust product to increase the temperature of the grid.
摘要翻译： 提供了一种处理由发动机产生的废气的排气系统。 该系统通常包括从排气过滤颗粒物的微粒过滤器（PF），其中PF的上游端接收来自发动机的排气。 电阻材料的栅格被施加到PF的外部上游表面，并且选择性地加热通过栅格的排气以引发PF内的微粒的燃烧。 施加到PF和栅极中的至少一个的催化剂涂层。 控制模块估计电网的温度并控制发动机以产生期望的排气产物以增加电网的温度。
-
98.发明申请公开(公告)号：US20120204540A1
公开(公告)日：2012-08-16
申请号：US13026569
申请日：2011-02-14
CPC分类号： F01N3/2013 , Y02T10/26 , Y10T307/691
摘要： A power system and a method for energizing an electrically heated catalyst are provided. The system includes a first battery outputting a first voltage, and a second battery outputting a second voltage. The system further includes a switching device having a first operational state where the first and second batteries are coupled in series to one another, and a second operational state where the first and second batteries are coupled in parallel to one another. The system further includes a generator coupled to the first battery, and when the switching device is in the second operational state the generator supplies a third voltage to the first battery to charge the first and second batteries, and to the electrically heated catalyst such that the catalyst heats exhaust gases upstream of an oxidation catalyst.
摘要翻译： 提供了一种电力系统和用于激励电加热的催化剂的方法。 该系统包括输出第一电压的第一电池和输出第二电压的第二电池。 该系统还包括具有第一操作状态的开关装置，其中第一和第二电池彼此串联耦合，并且第二操作状态，其中第一和第二电池彼此并联耦合。 该系统还包括耦合到第一电池的发电机，并且当开关装置处于第二操作状态时，发电机向第一电池提供第三电压以对第一和第二电池以及电加热的催化剂充电， 催化剂加热氧化催化剂上游的废气。
-
公开(公告)号：US20110271660A1
公开(公告)日：2011-11-10
申请号：US12776486
申请日：2010-05-10
CPC分类号： F01N3/208 , F01N3/027 , F01N3/035 , F01N13/0093 , F01N2370/02 , F01N2610/02 , F01N2900/0602 , F01N2900/1404 , F01N2900/1626 , Y02T10/24
摘要： A method of controlling an exhaust treatment system, comprising: selectively determining a first control state from a plurality of control states based on an exhaust temperature and a plurality of activation temperatures; estimating a reductant dose based on the control state; and controlling an injection of a reductant to the exhaust treatment system based on the reductant dose.
摘要翻译： 一种控制排气处理系统的方法，包括：基于排气温度和多个活化温度，从多个控制状态中选择性地确定第一控制状态; 基于控制状态估计还原剂量; 以及基于还原剂剂量控制对所述排气处理系统的还原剂的注入。
-
100.发明授权公开(公告)号：US08051644B2
公开(公告)日：2011-11-08
申请号：US12467499
申请日：2009-05-18
IPC分类号： F01N3/00
CPC分类号： F01N3/0256 , F01N3/0821 , F01N3/2066 , F01N2240/16 , F01N2330/36 , F01N2610/02 , Y02T10/24
摘要： A system includes a particulate matter (PM) filter with multiple zones. An electrical heater includes heater segments that are associated with respective ones of the zones. The electrical heater is arranged upstream from and proximate with the PM filter. A post fuel injection system injects fuel into at least one of a cylinder of an engine and an exhaust system. A control module selects one of the zones, adjusts post fuel injection based on the selected one of the zones, and electrically heats the one of the zones via a respective one of the heater segments.
摘要翻译： 系统包括具有多个区域的颗粒物质（PM）过滤器。 电加热器包括与各个区域相关联的加热器段。 电加热器布置在PM过滤器的上游和邻近处。 后燃料喷射系统将燃料喷射到发动机的气缸和排气系统中的至少一个中。 控制模块选择一个区域中的一个，基于所选区域中的一个来调整后燃料喷射，并且经由相应的一个加热器段电加热该区域中的一个。
-
-
-
-
-
-
-
-
-
搜索结果
246 条记录 (耗时 0.028 秒)
