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1. 发明申请

WO2009099528A2 EXHAUST SYSTEM IMPLEMENTING SCR AND EGR 审中-公开
标题翻译：排气系统实现SCR和EGR
公开(公告)号：WO2009099528A2
公开(公告)日：2009-08-13
申请号：PCT/US2009/000509
申请日：2009-01-27
申请人： CATERPILLAR INC. , ROBEL, Wade, J. , DRISCOLL, James, J.
发明人： ROBEL, Wade, J. , DRISCOLL, James, J.
IPC分类号： F01N3/28 , F01N3/24 , F01N3/00 , B01D53/86
CPC分类号： F02M26/15 , F01N3/0821 , F01N2570/18 , F01N2610/02 , F02B37/00
摘要： An exhaust system (18) for use with an engine (10) is disclosed. The exhaust system may have an exhaust passageway (26), a reduction catalyst (38) located within the exhaust passageway, and a particulate filter (34) located within the exhaust passageway upstream of the reduction catalyst. The exhaust system may also have an oxidation catalyst (44) located within the exhaust passageway upstream of the reduction catalyst to provide a desired ratio of NO:NO2 to the reduction catalyst, and an exhaust gas recirculation loop (22). The exhaust gas recirculation loop may be situated to receive exhaust from the exhaust passageway at a location upstream of the oxidation catalyst and downstream of the particulate filter.
摘要翻译：公开了一种与发动机（10）一起使用的排气系统（18）。排气系统可以具有排气通道（26），位于排气通道内的还原催化剂（38）和位于还原催化剂上游的排气通道内的微粒过滤器（34）。排气系统还可以具有位于还原催化剂上游的排气通道内的氧化催化剂（44），以提供NO：NO 2与还原催化剂的期望比例和排气再循环回路（22）。废气再循环回路可以被定位成在氧化催化剂的上游位置和微粒过滤器的下游处接收来自排气通道的排气。

2. 发明申请

WO2008054627A1 EXHAUST SYSTEM HAVING MID-REDUCER NOX SENSOR 审中-公开
标题翻译：具有中等浓度NOX传感器的排气系统
公开(公告)号：WO2008054627A1
公开(公告)日：2008-05-08
申请号：PCT/US2007/021909
申请日：2007-10-12
申请人： CATERPILLAR INC. , DRISCOLL, James, J. , KESSE, Mary, L. , ROBEL, Wade, J.
发明人： DRISCOLL, James, J. , KESSE, Mary, L. , ROBEL, Wade, J.
IPC分类号： B01D53/30 , B01D53/94 , F01N3/18 , F01N7/02 , F01N9/00
CPC分类号： F01N3/18 , B01D53/9431 , B01D53/9477 , B01D53/9495 , B01D2258/012 , F01N9/005 , F01N13/009 , F01N13/0097 , F01N2550/00 , Y02T10/47
摘要： An exhaust system (12) for a combustion engine (10) is disclosed. The exhaust system (12) may have a housing (20) connected to receive a flow of exhaust. The exhaust system (12) may also have a first catalyst (22) disposed within the housing (20) to reduce the concentration of an exhaust constituent, and a second catalyst (24) disposed within the housing (20) downstream of the first catalyst (22) to further reduce the concentration of the exhaust constituent. The exhaust system (12) may further have a sensor (26) disposed between the first and second catalysts (22, 24) to generate a signal indicative of the concentration of the exhaust constituent at the location between the first and second catalysts (22, 24). The exhaust system (12) may additionally have a controller (28) in communication with the sensor (26) to receive the signal. The controller (28) may determine, based on the received signal, the concentration of the exhaust constituent at a location downstream of the second catalyst (24).
摘要翻译：公开了一种用于内燃机（10）的排气系统（12）。排气系统（12）可以具有连接以接收排气流的壳体（20）。排气系统（12）还可以具有设置在壳体（20）内的第一催化剂（22），以减少排气构件的浓度，以及设置在第一催化剂下游的壳体（20）内的第二催化剂（24）（22），以进一步降低排气成分的浓度。排气系统（12）还可以具有设置在第一和第二催化剂（22,24）之间的传感器（26），以产生指示第一和第二催化剂（22,24）之间位置处排气成分浓度的信号， 24）。排气系统（12）可另外具有与传感器（26）连通的控制器（28）以接收信号。控制器（28）可基于所接收的信号确定排气成分在第二催化剂（24）下游位置处的浓度。

3. 发明申请

WO2007126592A1 EXHAUST TREATMENT SYSTEM 审中-公开
标题翻译：排气处理系统
公开(公告)号：WO2007126592A1
公开(公告)日：2007-11-08
申请号：PCT/US2007/006485
申请日：2007-03-14
申请人： CATERPILLAR INC. , EASLEY, JR., William, L. , VERKIEL, Maarten , STRAUSER, Aaron, D. , DRISCOLL, James, J. , ROBEL, Wade, J.
发明人： EASLEY, JR., William, L. , VERKIEL, Maarten , STRAUSER, Aaron, D. , DRISCOLL, James, J. , ROBEL, Wade, J.
IPC分类号： F01N3/035 , F01N3/08 , F01N9/00 , F01N3/025 , F01N3/027
CPC分类号： F01N3/027 , F01N3/025 , F01N3/0821 , F01N13/009 , F01N2250/02 , F01N2430/00
摘要： An exhaust treatment system (20) is provided. The system may include a particulate trap (34) configured to remove one or more types of particulate matter from an exhaust flow of an engine (18). The system may also include a catalyst (32) configured to chemically alter at least one component of the exhaust flow. Further, the system may include an exhaust conduit (26) configured to direct the exhaust flow from the engine to the particulate trap and the catalyst. In addition, the exhaust treatment system may include a heating system (38) configured to maintain the temperature of the catalyst above a first predetermined temperature. The heating system may also be configured to periodically raise the temperature of the particulate trap above a higher, second predetermined temperature to thereby effectuate a regeneration of the particulate trap by oxidizing particulate matter accumulated in the particulate trap.
摘要翻译：提供排气处理系统（20）。该系统可以包括被配置成从发动机（18）的排气流中去除一种或多种类型的颗粒物质的颗粒捕集器（34）。该系统还可以包括构造成化学改变排气流的至少一个组分的催化剂（32）。此外，该系统可以包括排气导管（26），该排气导管（26）构造成将来自发动机的排气流引导到颗粒捕集器和催化剂。此外，排气处理系统可以包括被配置为将催化剂的温度保持在第一预定温度以上的加热系统（38）。加热系统还可以被配置为周期性地将颗粒捕集器的温度升高到更高的第二预定温度以上，从而通过氧化颗粒捕集器中积聚的颗粒物质来实现颗粒捕集器的再生。

4. 发明申请

WO2008106164A2 PARTICULATE REGENERATION AND ENGINE CONTROL SYSTEM 审中-公开
标题翻译：颗粒物再生和发动机控制系统
公开(公告)号：WO2008106164A2
公开(公告)日：2008-09-04
申请号：PCT/US2008/002588
申请日：2008-02-27
申请人： CATERPILLAR INC. , ROBEL, Wade, J. , DRISCOLL, James, Joshua
发明人： ROBEL, Wade, J. , DRISCOLL, James, Joshua
CPC分类号： F02D41/029 , F01N3/0253 , F01N3/035 , F01N3/0821 , F01N3/2066 , F01N13/0097 , F01N2610/03 , Y02T10/24
摘要： A particulate regeneration system (26) for an engine (10) is disclosed. The particulate regeneration system may have a particulate filter (28) configured to remove particulate matter from a flow of engine exhaust, and a diesel oxidation catalyst (30) located upstream of the particulate filter to facilitate oxidation of the trapped particulate matter. The particulate regeneration system may further have a regeneration device (32) located upstream of the diesel oxidation catalyst and configured to selectively heat the exhaust above an oxidation temperature of the trapped particulate matter, and a selective catalytic reduction device (36) located downstream of the particulate filter to remove NOx from the engine exhaust. The particulate regeneration system may also have a controller (34) in communication with the regeneration device and the engine. The controller may be configured to modify engine operation in response to initiation of a regeneration event.
摘要翻译：公开了一种用于发动机（10）的颗粒再生系统（26）。颗粒再生系统可以具有构造成从发动机排气流中除去颗粒物质的微粒过滤器（28）和位于微粒过滤器上游的柴油氧化催化剂（30），以促进被捕获的颗粒物质的氧化。颗粒再生系统还可以具有位于柴油机氧化催化剂上游的再生装置（32），并且构造成选择性地将废气加热到被捕获的颗粒物质的氧化温度以上，并且选择性催化还原装置（36）位于微粒过滤器以从发动机排气中除去NOx。颗粒再生系统还可以具有与再生装置和发动机连通的控制器（34）。控制器可以被配置为响应于再生事件的启动来修改引擎操作。

5. 发明申请

WO2012087873A2 SYSTEM FOR RECOVERING ENGINE EXHAUST ENERGY 审中-公开
标题翻译：恢复发动机排放能源的系统
公开(公告)号：WO2012087873A2
公开(公告)日：2012-06-28
申请号：PCT/US2011/065731
申请日：2011-12-19
申请人： CATERPILLAR INC. , ROBEL, Wade, J.
发明人： ROBEL, Wade, J.
IPC分类号： F02G5/02 , F01N5/02 , F01N13/08 , F02B37/013
CPC分类号： F01N5/02 , F01N13/107 , F02B37/004 , F02B37/013 , F02B37/18 , F02D13/0249 , F02D13/0257 , F02D23/00 , F02M26/04 , Y02T10/144 , Y02T10/16 , Y02T10/163 , Y02T10/18
摘要： A system (21) for recovering engine exhaust energy is provided. The system includes an exhaust system (12) including a first exhaust branch (110) and a second exhaust branch (120). The system (21) includes a first and a second group of exhaust valves (56, 58) associated with a plurality of engine cylinders (52). The system (21) also includes an energy recovering assembly (40). The system (21) further includes a control mechanism (100) configured to control at least one of the first and second groups of exhaust valves (56, 58) according to a determined timing strategy based on at least one engine operating parameter.
摘要翻译：提供了一种用于回收发动机排气能量的系统（21）。该系统包括排气系统（12），其包括第一排气分支（110）和第二排气分支（120）。系统（21）包括与多个发动机气缸（52）相关联的第一组和第二组排气门（56,58）。系统（21）还包括能量回收组件（40）。系统（21）还包括控制机构（100），其被配置为基于至少一个发动机操作参数根据确定的定时策略来控制第一组和第二组排气门（56,58）中的至少一个。

6. 发明申请

WO2009140245A2 SELECTIVE CATALYTIC REDUCTION USING CONTROLLED CATALYTIC DEACTIVATION 审中-公开
标题翻译：选择性催化还原使用控制催化脱氢
公开(公告)号：WO2009140245A2
公开(公告)日：2009-11-19
申请号：PCT/US2009/043565
申请日：2009-05-12
申请人： CATERPILLAR INC. , DRISCOLL, James, J. , ROBEL, Wade, J. , CHAVANNAVAR, Praveen, S.
发明人： DRISCOLL, James, J. , ROBEL, Wade, J. , CHAVANNAVAR, Praveen, S.
IPC分类号： F01N3/10 , F01N9/00 , B01D53/94 , B01D53/56 , B01J21/18 , F01N3/20
CPC分类号： F01N3/2066 , B01D53/9409 , B01D53/9495 , F01N2570/14 , F01N2610/03 , Y02T10/24
摘要： An exhaust treatment control system includes a controller (28) configured to determine a value representative of a NO 2 concentration associated with an exhaust gas upstream of a selective catalytic reduction (SCR) catalyst (22), and determine a value representative of a NO concentration associated with the exhaust gas upstream of the SCR catalyst. The controller can also be configured to transmit a signal to at least partially control an injection of a hydrocarbon into the exhaust gas, wherein the hydrocarbon injection can occur upstream of an oxidation catalyst (20) to at least partially decrease the NO 2 concentration of the exhaust gas downstream of the oxidation catalyst, and wherein the oxidation catalyst can be located upstream of the SCR catalyst.
摘要翻译：排气处理控制系统包括控制器（28），其被配置为确定代表与选择性催化还原（SCR）催化剂（22）上游的废气相关联的NO 2浓度的值，并且确定代表与NO浓度相关联的值在SCR催化剂上游排出废气。控制器还可以被配置为传输信号以至少部分地控制将烃注入到废气中，其中烃注入可以发生在氧化催化剂（20）的上游，以至少部分地降低排气的NO 2浓度气体在氧化催化剂的下游，并且其中氧化催化剂可以位于SCR催化剂的上游。

7. 发明申请

WO2009017639A1 EXHAUST TREATMENT SYSTEM WITH AN OXIDATION DEVICE FOR NO2 CONTROL 审中-公开
标题翻译：具有用于NO2控制的氧化装置的排气处理系统
公开(公告)号：WO2009017639A1
公开(公告)日：2009-02-05
申请号：PCT/US2008/008946
申请日：2008-07-23
申请人： CATERPILLAR INC. , ROBEL, Wade, J. , CHAVANNAVAR, Praveen, S. , HARDY, William, L. , SCHROEDER, Eric, L.
发明人： ROBEL, Wade, J. , CHAVANNAVAR, Praveen, S. , HARDY, William, L. , SCHROEDER, Eric, L.
IPC分类号： F01N3/20 , F01N3/035 , F01N3/023
CPC分类号： F01N3/2066 , F01N3/0231 , F01N3/025 , F01N3/027 , F01N3/035 , F01N3/106 , F01N3/208 , F01N13/009 , F01N13/0093 , F01N13/011 , F01N2510/0682 , F01N2560/026 , F01N2560/06 , F01N2610/02 , Y02T10/24
摘要： An exhaust treatment system (20, 30, 60, 70, 80) includes an oxidation device (22, 62, 72) having a plurality of channels (22a) through which a flow of exhaust flows. A first portion of the channels are coated with catalytic material for converting NO to NO 2 , and a second portion of the channels are uncoated with the catalytic material. The exhaust treatment system also includes a selective catalytic reduction device (23, 28, 28a) disposed downstream from the oxidation device. The selective catalytic reduction device is configured to receive the flow of exhaust passing through the oxidation device.
摘要翻译：废气处理系统（20,30,60,70,80）包括具有多个通道（22a）的氧化装置（22,62,72），废气流通过该通道流动。通道的第一部分涂覆有用于将NO转化为NO 2的催化材料，并且通道的第二部分不与催化材料一起涂覆。废气处理系统还包括设置在氧化装置下游的选择性催化还原装置（23,28,28a）。选择性催化还原装置构造成接收通过氧化装置的排气流。

8. 发明申请

WO2008030314A1 EMISSIONS REDUCTION SYSTEM 审中-公开
标题翻译：排放减少系统
公开(公告)号：WO2008030314A1
公开(公告)日：2008-03-13
申请号：PCT/US2007/017827
申请日：2007-08-10
申请人： CATERPILLAR INC. , ROBEL, Wade, J. , DRISCOLL, James, J.
发明人： ROBEL, Wade, J. , DRISCOLL, James, J.
IPC分类号： F01N3/035 , F01N3/20 , B01D53/94
CPC分类号： F01N3/035 , B01D53/9431 , B01D53/9477 , B01D2255/20723 , B01D2255/50 , B01D2258/012 , F01N3/206 , F01N13/009 , F01N13/0093 , F01N2250/02 , F02B37/013 , Y02T10/24
摘要： An engine (10), an exhaust system, and a method for reducing NOx in an exhaust stream are provided. The system comprises a first SCR catalyst (100), a second SCR catalyst (110), and a particulate filter (51) positioned between the first and second SCR catalyst. The engine comprises an intake air system, at least one combustion chamber, and an exhaust system comprising a first SCR catalyst positioned upstream of a particulate filter and a second SCR catalyst positioned downstream of the particulate filter. The method comprises the steps of passing the exhaust through a low-temperature SCR catalyst, passing the exhaust through a particulate filter, and passing the exhaust through a high-temperature SCR catalyst.
摘要翻译：提供了一种发动机（10），排气系统以及用于减少废气流中的NOx的方法。该系统包括位于第一和第二SCR催化剂之间的第一SCR催化剂（100），第二SCR催化剂（110）和颗粒过滤器（51）。发动机包括进气系统，至少一个燃烧室和排气系统，其包括位于颗粒过滤器上游的第一SCR催化剂和位于微粒过滤器下游的第二SCR催化剂。该方法包括以下步骤：使废气通过低温SCR催化剂，使废气通过颗粒过滤器，并使废气通过高温SCR催化剂。

9. 发明申请

WO2009102832A3 EXHAUST SYSTEM IMPLEMENTING SELECTIVE CATALYST FLOW CONTROL 审中-公开
公开(公告)号：WO2009102832A3
公开(公告)日：2009-08-20
申请号：PCT/US2009/033863
申请日：2009-02-12
申请人： CATERPILLAR INC. , DEL VECCHIO, Kerry, A. , KRAMER, Delbert , KRUISWYK, Richard, W. , ROBEL, Wade, J. , ANEES, Hafiz
发明人： DEL VECCHIO, Kerry, A. , KRAMER, Delbert , KRUISWYK, Richard, W. , ROBEL, Wade, J. , ANEES, Hafiz
IPC分类号： F01N3/28 , B01D53/86 , B01D53/94 , F01N3/18 , F01N9/00
摘要： An exhaust system (38) for use with an engine (10) is disclosed. The exhaust system may have a first treatment device (42) configured to receive a flow of exhaust from the engine and convert a first constituent of the exhaust to a second constituent. The exhaust system may also have a second treatment device (44) located downstream of the first treatment device and configured to reduce the first constituent and the second constituent. The exhaust system may further have a flow regulator (56) configured to selectively vary a rate of exhaust passing through the first treatment device, and a controller (58) configured to operate the flow regulator such that a desired amount of the first constituent and the second constituent is received by the second treatment device.

10. 发明申请

WO2009017597A1 EXHAUST TREATMENT SYSTEM WITH NO2 CONTROL 审中-公开
标题翻译：具有NO2控制的排气处理系统
公开(公告)号：WO2009017597A1
公开(公告)日：2009-02-05
申请号：PCT/US2008/008657
申请日：2008-07-16
申请人： CATERPILLAR INC. , ROBEL, Wade, J.
发明人： ROBEL, Wade, J.
IPC分类号： F01N3/20 , F01N3/031 , F01N3/035
CPC分类号： F01N3/031 , F01N3/0231 , F01N3/035 , F01N3/106 , F01N3/2066 , F01N13/009 , F01N13/0097 , F01N13/011 , F01N2250/02 , F01N2560/00 , F01N2610/00 , F01N2610/02 , Y02T10/24
摘要： An exhaust treatment system (30, 50, 80) includes a catalyzed particulate filter (32) disposed in a first passageway (30a, 30a", 30a'", 30a"", 50a, 80a) and configured to receive a first portion of a flow of exhaust. The catalyzed particulate filter is at least partially coated with a catalytic material for converting NO to NO 2 . The exhaust treatment system also includes a second passageway (30b, 50b, 80b, 80b') configured to direct a second portion of the flow of exhaust around the catalyzed particulate filter and a selective catalytic reduction device (28, 28b) disposed downstream from the first passageway and the second passageway. The selective catalytic reduction device is configured to receive a combined flow of exhaust including the first and second portions of the flow of exhaust.
摘要翻译：排气处理系统（30,50,80）包括设置在第一通道（30a，30a“，30a”，“30a”，50a，80a）中的催化微粒过滤器（32），并被构造成接收第一部分排气流。催化的颗粒过滤器至少部分地涂覆有用于将NO转化为NO 2的催化材料。废气处理系统还包括第二通道（30b，50b，80b，80b'），其被配置为引导围绕催化的微粒过滤器的排气流的第二部分，以及选择性催化还原装置（28,28b）第一通道和第二通道。选择性催化还原装置构造成接收包括排气流的第一和第二部分的排气的组合流。

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