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1. 发明申请

WO2008085246A1 LOW TEMPERATURE EMISSION SYSTEM HAVING TURBOCHARGER BYPASS 审中-公开
标题翻译：具有涡轮增压器旁路的低温排放系统
公开(公告)号：WO2008085246A1
公开(公告)日：2008-07-17
申请号：PCT/US2007/025258
申请日：2007-12-11
申请人： CATERPILLAR INC. , DRISCOLL, James, Joshua , BOND, Michael, S. , VERKIEL, Maarten , HAUGHNEY, Michael, A.
发明人： DRISCOLL, James, Joshua , BOND, Michael, S. , VERKIEL, Maarten , HAUGHNEY, Michael, A.
IPC分类号： B01D53/94 , F01N3/08 , F02B37/00
CPC分类号： F01N13/009 , B01D53/60 , B01D53/8637 , B01D53/9431 , B01D2258/01 , F01N3/0814 , F01N3/0842 , F01N3/0885 , F01N3/2006 , F01N3/2046 , F01N9/00 , F01N11/002 , F01N2270/02 , F01N2430/085 , F01N2560/026 , F01N2560/06 , F01N2610/02 , F02B37/168 , Y02A50/2344 , Y02T10/144 , Y02T10/26 , Y02T10/47
摘要： An exhaust system (104) for an engine (100) is disclosed. The exhaust system may have a NOx reducer (128) located to receive exhaust from the engine, and a bypass circuit (132) configured to selectively pass supercharged air to the NOx reducer. The exhaust system may also have a valve (136) disposed within the bypass circuit to regulate the flow of supercharged air, and a controller (140) in communication with the valve. The controller may be configured to move the valve to pass the supercharged air and cool the exhaust received by the NOx reducer. The controller may also be configured to move the valve to reduce the passing of the supercharged air and remove sulfur compounds from the NOx reducer.
摘要翻译：公开了一种用于发动机（100）的排气系统（104）。排气系统可以具有位于以接收来自发动机的排气的NOx还原器（128），以及构造成选择性地将增压空气传递到NOx还原器的旁路回路（132）。排气系统还可以具有设置在旁路回路内的阀（136），以调节增压空气的流量，以及与阀连通的控制器（140）。控制器可以被配置为移动阀以通过增压空气并且冷却由NOx还原器接收的废气。控制器还可以被配置为移动阀以减少增压空气的通过并从NOx还原器中除去硫化合物。

2. 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。

3. 发明申请

WO2007064412A1 MULTI-STAGE SYSTEM FOR SELECTIVE CATALYTIC REDUCTION 审中-公开
标题翻译：选择性催化还原的多级系统
公开(公告)号：WO2007064412A1
公开(公告)日：2007-06-07
申请号：PCT/US2006/039669
申请日：2006-10-10
申请人： CATERPILLAR INC. , DRISCOLL, James, Joshua , MILAM, David, M.
发明人： DRISCOLL, James, Joshua , MILAM, David, M.
IPC分类号： B01D53/94 , F01N3/20
CPC分类号： B01D53/9409 , B01D53/90 , B01D53/9431 , B01D53/9477 , B01D2251/2062 , F01N3/04 , F01N3/05 , F01N3/2053 , F01N3/2066 , F01N3/2073 , F01N13/009 , F01N13/0093 , F01N13/011 , F01N13/107 , F01N2240/25 , F01N2610/02 , F02B37/00 , Y02A50/2325 , Y02T10/24 , Y10S423/05
摘要： A first aspect of the present disclosure includes a method of controlling nitric oxides emissions. The method may include producing an exhaust gas stream (11) containing NOx and supplying the exhaust gas stream to an exhaust passage (12). The method may further comprise supplying ammonia to the exhaust passage at a location upstream of a first selective catalytic reduction catalyst (18), wherein the amount of ammonia supplied at the first location is less than about 90% of the effective amount of ammonia needed for reduction of all NOx at the first location. Further, ammonia may be supplied to the exhaust passage at a second location downstream of the first selective catalytic reduction catalyst and upstream of a second selective catalytic reduction catalyst (22).
摘要翻译：本公开的第一方面包括控制一氧化氮排放的方法。该方法可以包括产生含有NOx的废气流（11）并将废气流供应到排气通道（12）。该方法还可以包括在第一选择性催化还原催化剂（18）上游的位置向排气通道供应氨，其中在第一位置供应的氨的量小于所需氨的有效量的约90％在第一个位置减少所有的NOx。此外，可以在第一选择性催化还原催化剂的下游的第二位置和第二选择性催化还原催化剂（22）的上游向排气通道供应氨。

4. 发明申请

WO2008153694A1 MULTI-ENGINE SYSTEM WITH ON-BOARD AMMONIA PRODUCTION 审中-公开
标题翻译：具有板载氨生产的多发动机系统
公开(公告)号：WO2008153694A1
公开(公告)日：2008-12-18
申请号：PCT/US2008/006456
申请日：2008-05-21
申请人： CATERPILLAR INC. , DRISCOLL, James, Joshua , GONG, Weidong , ROBEL, Wade
发明人： DRISCOLL, James, Joshua , GONG, Weidong , ROBEL, Wade
IPC分类号： F01N3/20
CPC分类号： F01N3/2073 , F01N13/009 , F01N13/011 , F01N13/107 , F01N2240/25 , F01N2560/021 , F01N2560/026 , Y02A50/2325
摘要： A power system (16) is provided having a first power source (20) including at least one engine (24) configured to combust a first air/fuel mixture and produce a first exhaust stream. The system also has a first exhaust passageway (32) fluidly connected to the first power source and configured to receive the first exhaust stream. In addition, the system has a second power source (22) including at least one engine (26) configured to combust a second fuel/air mixture and produce a second exhaust stream. Furthermore, the system has a second exhaust passageway (38) fluidly connected to the second power source and configured to receive the second exhaust stream. The system further has a first catalyst (36) disposed within the first exhaust passageway to convert at least a portion of the first exhaust stream to ammonia.
摘要翻译：一种电力系统（16），其具有第一电源（20），该第一电源（20）包括至少一个发动机（24），该发动机构造成燃烧第一空气/燃料混合物并产生第一排气流。该系统还具有流体连接到第一电源并被配置为接收第一排气流的第一排气通道（32）。另外，该系统具有包括配置成燃烧第二燃料/空气混合物并产生第二排气流的至少一个发动机（26）的第二电源（22）。此外，系统具有流体连接到第二电源并被配置为接收第二排气流的第二排气通道（38）。该系统还具有设置在第一排气通道内的第一催化剂（36），以将至少一部分第一排气流转化成氨。

5. 发明申请

WO2008106164A3 PARTICULATE REGENERATION AND ENGINE CONTROL SYSTEM 审中-公开
标题翻译：微粒再生与发动机控制系统
公开(公告)号：WO2008106164A3
公开(公告)日：2008-12-11
申请号：PCT/US2008002588
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
IPC分类号： F02D41/02
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）的微粒再生系统（26）。颗粒再生系统可以具有被构造成从发动机排气流中去除颗粒物质的颗粒过滤器（28），以及位于颗粒过滤器上游的柴油机氧化催化剂（30）以促进被捕集的颗粒物质的氧化。颗粒再生系统可以进一步具有位于柴油氧化催化剂上游并配置成选择性地将排气加热到捕集的颗粒物质的氧化温度以上的再生装置（32），以及位于所述柴油氧化催化剂下游的选择性催化还原装置（36）微粒过滤器去除发动机排气中的NOx。微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而修改发动机操作。

6. 发明申请

WO2008105996A1 ENGINE EXHAUST TREATMENT SYSTEM 审中-公开
标题翻译：发动机排气处理系统
公开(公告)号：WO2008105996A1
公开(公告)日：2008-09-04
申请号：PCT/US2008/001632
申请日：2008-02-07
申请人： CATERPILLAR INC. , DRISCOLL, James, Joshua , JAYACHANDRAN, Amit
发明人： DRISCOLL, James, Joshua , JAYACHANDRAN, Amit
IPC分类号： F01N3/20 , F01N9/00 , F01N11/00 , B01D53/94
CPC分类号： F01N3/208 , B01D53/9431 , B01D53/9495 , B01D2251/206 , F01N3/2066 , F01N11/002 , F01N13/009 , F01N13/0093 , F01N13/0097 , F01N2560/06 , F01N2570/18 , F01N2610/02 , Y02T10/24 , Y02T10/47
摘要： An engine exhaust treatment system (20) is provided. The system may include a catalyst-based device (30) including a catalyst (32) configured to reduce an amount of NO x in exhaust gases produced by an engine (18), by using ammonia stored in the catalyst-based device. The system may also include a controller (22) configured to control one or more operating parameters of the engine to, under predetermined operating conditions of the engine or catalyst- based device, increase an amount of NO x produced by the engine to prevent at least some of the ammonia stored in the catalyst-based device from being released from the catalyst-based device into the exhaust.
摘要翻译：提供一种发动机排气处理系统（20）。该系统可以包括基于催化剂的装置（30），其包括催化剂（32），其构造成通过使用存储在发动机（18）中的氨来减少由发动机（18）产生的废气中的NO x的量基于催化剂的装置。该系统还可以包括控制器（22），其被配置为在发动机或基于催化剂的装置的预定操作条件下控制发动机的一个或多个操作参数，增加产生的NO x的量通过发动机来防止存储在基于催化剂的装置中的至少一些氨从基于催化剂的装置释放到排气中。

7. 发明申请

WO2008082467A1 EXHAUST TREATMENT SYSTEM 审中-公开
标题翻译：排气处理系统
公开(公告)号：WO2008082467A1
公开(公告)日：2008-07-10
申请号：PCT/US2007/025257
申请日：2007-12-11
申请人： CATERPILLAR INC. , DRISCOLL, James, Joshua , CHAVANNAVAR, Praveen, S. , PAULSON, Thomas, E. , LIANG, Cho, Y. , WOODS, Michael, L.
发明人： DRISCOLL, James, Joshua , CHAVANNAVAR, Praveen, S. , PAULSON, Thomas, E. , LIANG, Cho, Y. , WOODS, Michael, L.
IPC分类号： F01N3/023 , F01N3/035 , F01N3/08 , F01N3/20 , F01N9/00 , F02D41/00
CPC分类号： F01N3/023 , F01N3/035 , F01N3/0814 , F01N3/0821 , F01N3/206 , F01N9/002 , F01N13/009 , F02B37/013 , F02M26/06 , Y02T10/24 , Y02T10/47
摘要： An exhaust gas treatment system (10, 100, 200, 300) of an internal combustion engine (12) includes a selective catalytic reduction catalyst (19) fluidly connected to the internal combustion engine (12), an oxidation catalyst fluidly connected upstream of the selective catalytic reduction catalyst (19), and a particulate filter (16, 36) fluidly connected upstream of the selective catalytic reduction catalyst (19). The exhaust gas treatment system (10, 100, 200, 300) further includes a recirculation line (24) configured to direct a portion of an exhaust flow of the internal combustion engine (12) toward an inlet (21) of the engine (12).
摘要翻译：内燃机（12）的废气处理系统（10,100,200,300）包括流体连接到内燃机（12）的选择性催化还原催化剂（19），流体连接到内燃机选择性催化还原催化剂（19）和流体连接在选择性催化还原催化剂（19）上游的颗粒过滤器（16,36）。废气处理系统（10,100,200,300）还包括再循环管线（24），其构造成将内燃机（12）的排气流的一部分朝向发动机（12）的入口（21））。

8. 发明申请

WO2008147492A1 EXHAUST SYSTEM UTILIZING A LOW-TEMPERATURE OXIDATION CATALYST 审中-公开
标题翻译：使用低温氧化催化剂的排气系统
公开(公告)号：WO2008147492A1
公开(公告)日：2008-12-04
申请号：PCT/US2008/005210
申请日：2008-04-23
申请人： CATERPILLAR INC. , DRISCOLL, James, Joshua , LIANG, Cho, Ying , SILVER, Ronald , SHANNON, Corey, M. , WEI, Zhiyong
发明人： DRISCOLL, James, Joshua , LIANG, Cho, Ying , SILVER, Ronald , SHANNON, Corey, M. , WEI, Zhiyong
IPC分类号： F01N3/023 , F01N3/035 , F01N3/20 , F01N7/02 , F01N7/04
CPC分类号： F01N3/2066 , F01N3/0231 , F01N3/035 , F01N3/106 , F01N3/2053 , F01N9/00 , F01N13/009 , F01N13/011 , F01N2410/06 , F01N2510/06 , F01N2560/06 , Y02T10/24 , Y02T10/47
摘要： An exhaust treatment system (32) is provided having a first exhaust passageway (24) fluidly connected to an engine (12). A particulate filter and a selective catalytic reduction catalyst (42) are situated within the first exhaust passageway. In addition, the system has a first oxidation catalyst (40) located within the first exhaust passageway upstream of the particulate filter and the selective catalytic reduction catalyst. The system also has a second exhaust passageway (34) fluidly connected to the first exhaust passageway upstream and downstream of the first oxidation catalyst. The exhaust treatment system further has a sensor (44) configured to sense a parameter indicative of an exhaust gas temperature. Furthermore, the system has a controller (46) configured to direct exhaust gas through the first oxidation catalyst when the exhaust gas temperature is below a threshold temperature and direct the exhaust gas through the second exhaust passageway when the exhaust gas temperature is above the threshold temperature.
摘要翻译：排气处理系统（32）具有流体连接到发动机（12）的第一排气通道（24）。颗粒过滤器和选择性催化还原催化剂（42）位于第一排气通道内。此外，该系统具有位于颗粒过滤器和选择性催化还原催化剂上游的第一排气通道内的第一氧化催化剂（40）。该系统还具有与第一氧化催化剂的上游和下游流体连接到第一排气通道的第二排气通道（34）。排气处理系统还具有被配置为感测指示废气温度的参数的传感器（44）。此外，该系统具有：控制器（46），其配置为当废气温度低于阈值温度时引导废气通过第一氧化催化剂，并且当废气温度高于阈值温度时引导废气通过第二排气通道。

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