公开(公告)号：WO2008012618A3

公开(公告)日：2008-01-31

申请号：PCT/IB2007/002009

申请日：2007-07-13

Applicant: EATON CORPORATION ,  REUTER, Johannes, W. ,  SHAMIS, Dmitry, A. ,  MCCARTHY JR., James, E.

Inventor： REUTER, Johannes, W. ,  SHAMIS, Dmitry, A. ,  MCCARTHY JR., James, E.

IPC: B01D53/94 ,  F01N3/025 ,  F01N3/08 ,  F02D41/02

Abstract: One of the inventors' concepts relates to controlling a temperature of a diesel exhaust aftertreatment device, such as a DPF or a fuel reformer, in which combustion is taking place. The concept is to inject reductant to combust in an upstream device, thereby removing oxygen in the exhaust and limiting combustion in the downstream device. The same total amount of heat may be generated, but the distribution is different and limits temperatures in the downstream device. The temperature limiting effect may be through one or more of the thermal storage capacity of the upstream device and or other upstream devices, the additional heat loss to the surroundings due to higher temperatures upstream in the exhaust system, or the benefit of a more uniform distribution of heat in the downstream device, which mitigates local hot spots. This concept may be used in a temperature control system.

公开(公告)号：WO2008012653A3

公开(公告)日：2009-02-19

申请号：PCT/IB2007002122

申请日：2007-07-25

Applicant: EATON CORP ,  REUTER JOHANNES W ,  SHAMIS DMITRY A ,  MCCARTHY JR JAMES E ,  CHIMNER CHRISTIAN T

Inventor： REUTER JOHANNES W ,  SHAMIS DMITRY A ,  MCCARTHY JR JAMES E ,  CHIMNER CHRISTIAN T

IPC: F01N3/08 ,  B01D53/94 ,  F01N3/20 ,  F02D41/02

CPC classification number: F01N3/0842 ,  B01D53/90 ,  B01D53/9409 ,  B01D53/9495 ,  B01D2251/2062 ,  B01D2251/208 ,  B01D2258/012 ,  F01N3/0821 ,  F01N3/0871 ,  F01N13/0097 ,  F01N13/02 ,  F01N2250/12 ,  F01N2570/14 ,  F01N2610/04 ,  F02D41/0275 ,  Y02A50/2325 ,  Y02T10/24

Abstract: A method is provided for regenerating a LNT (13) in a diesel engine (9) exhaust aftertreatment system (7). Typically, the aftertreatment system (7) comprises a fuel reformer (12), a LNT (13), and a SCR catalyst (14) in that order. Over the course of the regeneration, the concentration or flow rate of syn gas is increased, peaked, and then reduced. Preferably, the syn gas concentration or flow rate and the fuel reformer (12) temperature are simultaneously controlled using at least a fuel injector and an engine intake air throttle. The pattern of increasing the syn gas concentration or flow rate during a first part of the regeneration and decreasing the syn gas concentration of flow rate in a latter part of the regeneration reduces the fuel penalty for the regeneration and improves the ammonia production rate as compared to a system in which the syn gas concentration or flow rate is essentially constant throughout the regeneration.

Abstract translation: 提供了一种在柴油发动机（9）废气后处理系统（7）中再生LNT（13）的方法。 通常，后处理系统（7）依次包括燃料重整器（12），LNT（13）和SCR催化剂（14）。 在再生过程中，合成气的浓度或流量增加，峰值，然后降低。 优选地，使用至少燃料喷射器和发动机进气节流阀同时控制合成气浓度或流量和燃料重整器（12）温度。 在再生的第一部分中增加合成气体浓度或流量的模式，并且在再生后期部分降低合成气体流速浓度降低了再生的燃料损失，并且提高了氨生产率，与 其中合成气浓度或流速在整个再生过程中基本上恒定的系统。

公开(公告)号：WO2008012618A2

公开(公告)日：2008-01-31

申请号：PCT/IB2007002009

申请日：2007-07-13

Applicant: EATON CORP ,  REUTER JOHANNES W ,  SHAMIS DMITRY A ,  MCCARTHY JR JAMES E

Inventor： REUTER JOHANNES W ,  SHAMIS DMITRY A ,  MCCARTHY JR JAMES E

CPC classification number: F01N3/0253 ,  B01D53/9454 ,  B01D53/9495 ,  B01D2251/208 ,  B01D2258/012 ,  F01N13/0097 ,  F01N2240/28 ,  F01N2240/30 ,  F01N2610/03 ,  F02D41/0275 ,  F02D41/029 ,  Y02A50/2324 ,  Y02T10/22

Abstract: One of the inventors' concepts relates to controlling a temperature of a diesel exhaust aftertreatment device, such as a DPF or a fuel reformer, in which combustion is taking place. The concept is to inject reductant to combust in an upstream device, thereby removing oxygen in the exhaust and limiting combustion in the downstream device. The same total amount of heat may be generated, but the distribution is different and limits temperatures in the downstream device. The temperature limiting effect may be through one or more of the thermal storage capacity of the upstream device and or other upstream devices, the additional heat loss to the surroundings due to higher temperatures upstream in the exhaust system, or the benefit of a more uniform distribution of heat in the downstream device, which mitigates local hot spots. This concept may be used in a temperature control system.

Abstract translation: 本发明人的概念之一涉及控制燃烧发生的柴油机废气后处理装置（例如DPF或燃料重整器）的温度。 该概念是在上游装置中注入还原剂燃烧，从而去除排气中的氧气并限制下游装置中的燃烧。 可能产生相同的总热量，但是分布不同并限制了下游装置中的温度。 温度限制效应可以通过上游设备和/或其他上游设备的一个或多个热存储容量，由于排气系统中上游的较高温度对周围环境的额外热损失，或更均匀分布的益处 的下游装置中的热量，这减轻了局部热点。 这个概念可以用在温度控制系统中。

公开(公告)号：WO2008155631A3

公开(公告)日：2009-05-07

申请号：PCT/IB2008001592

申请日：2008-06-19

Applicant: EATON CORP ,  SHAMIS DMITRY A ,  MCCARTHY JAMES E JR ,  REUTER JOHANNES W ,  BEVAN KAREN E ,  CHIMNER CHRISTIAN T

Inventor： SHAMIS DMITRY A ,  MCCARTHY JAMES E JR ,  REUTER JOHANNES W ,  BEVAN KAREN E ,  CHIMNER CHRISTIAN T

IPC: F01N3/08 ,  F01N3/20 ,  F02D41/02 ,  F02D41/14

CPC classification number: F01N3/2066 ,  F01N3/0842 ,  F01N3/0871 ,  F01N13/0097 ,  F01N2240/30 ,  F01N2560/026 ,  F01N2610/03 ,  F01N2900/08 ,  F02D41/0275 ,  F02D2200/1012 ,  F02D2250/36 ,  Y02T10/24

Abstract: A lean NOx trap (105) is a diesel exhaust aftertreatment system (103) is selectively denitrated based on a measure relating to the state and/or the performance of the exhaust aftertreatment system (103), or a portion thereof comprising the lean NOx trap (105), reaching a critical value. The critical value is varied according to the demands currently being place on the exhaust aftertreatment system (103). In one embodiment, the critical value is set based on engine speed- load information. The method regenerates more frequently when exhaust aftertreatment demands are high and less frequently when demands are low. The method improves aftertreatment performance while reducing aftertreatment fuel penalty.

Abstract translation: 贫NOx捕集器（105）是基于与排气后处理系统（103）的状态和/或性能相关的措施或其部分包括贫NOx捕集器（103）的柴油机废气后处理系统（103）被选择性脱硝 （105），达到临界值。 临界值根据排气后处理系统（103）当前的要求而变化。 在一个实施例中，临界值是基于发动机转速加载信息设定的。 当废气后处理需求高时，该方法更频繁地再生，当需求低时，该方法不太频繁。 该方法提高后处理性能，同时降低后处理燃料处罚。

公开(公告)号：WO2009074860A3

公开(公告)日：2009-08-13

申请号：PCT/IB2008003440

申请日：2008-12-11

Applicant: EATON CORP ,  SHAMIS DMITRY A ,  BUSDIECKER MATTHEW R ,  REUTER JOHANNES W

Inventor： SHAMIS DMITRY A ,  BUSDIECKER MATTHEW R ,  REUTER JOHANNES W

IPC: F02D41/02 ,  F01N3/08

CPC classification number: F02D41/0275 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/2066 ,  F01N9/00 ,  F01N13/009 ,  F01N13/0097 ,  F01N2240/30 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2900/0422 ,  F01N2900/08 ,  F02D41/023 ,  Y02T10/24 ,  Y02T10/47 ,  Y10T477/663

Abstract: Discontinuous torque ratio shifts by a transmission (113) can result in complex transient exhaust conditions that can adversely affect exhaust air-fuel ratio control, which can result in ineffective lean NOX trap (105) regeneration. In extreme cases, the result can be irreversible damage to exhaust system components, particularly if an exhaust line fuel reformer (104) is in use. The inventors' concept is to alter either regeneration scheduling or shift scheduling to avoid shifting while regenerating.

Abstract translation: 通过变速器（113）的不连续的扭矩比偏移可能导致复杂的瞬态排气条件，这可能会对排气空燃比控制产生不利影响，这可能导致无效的NOx NOX捕集（105）再生。 在极端情况下，结果可能是排气系统部件的不可逆损坏，特别是如果使用排气管线燃料重整器（104）。 发明人的概念是改变再生调度或换档调度以避免在再生时移动。

公开(公告)号：WO2009074860A2

公开(公告)日：2009-06-18

申请号：PCT/IB2008/003440

申请日：2008-12-11

Applicant: EATON CORPORATION ,  SHAMIS, Dmitry, A. ,  BUSDIECKER, Matthew, R. ,  REUTER, Johannes, W.

Inventor： SHAMIS, Dmitry, A. ,  BUSDIECKER, Matthew, R. ,  REUTER, Johannes, W.

IPC: F02D41/02 ,  F01N3/08

CPC classification number: F02D41/0275 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/2066 ,  F01N9/00 ,  F01N13/009 ,  F01N13/0097 ,  F01N2240/30 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2900/0422 ,  F01N2900/08 ,  F02D41/023 ,  Y02T10/24 ,  Y02T10/47 ,  Y10T477/663

Abstract: Discontinuous torque ratio shifts by a transmission (113) can result in complex transient exhaust conditions that can adversely affect exhaust air-fuel ratio control, which can result in ineffective lean NO X trap (105) regeneration. In extreme cases, the result can be irreversible damage to exhaust system components, particularly if an exhaust line fuel reformer (104) is in use. The inventors' concept is to alter either regeneration scheduling or shift scheduling to avoid shifting while regenerating.

Abstract translation: 通过变速器（113）产生的不连续扭矩比变化会导致复杂的瞬时排气状况，这会对排气空燃比控制产生不利影响，这可能导致无效的NO 陷阱（105）再生。 在极端情况下，结果可能是排气系统部件的不可逆转的损坏，特别是在使用排气管线燃料重整器（104）的情况下。 发明人的概念是改变再生调度或换档调度，以避免在再生时移位。

公开(公告)号：WO2008155631A2

公开(公告)日：2008-12-24

申请号：PCT/IB2008/001592

申请日：2008-06-19

Applicant: EATON CORPORATION ,  SHAMIS, Dmitry, A. ,  MCCARTHY, James, E., Jr. ,  REUTER, Johannes, W. ,  BEVAN, Karen, E. ,  CHIMNER, Christian, T.

Inventor： SHAMIS, Dmitry, A. ,  MCCARTHY, James, E., Jr. ,  REUTER, Johannes, W. ,  BEVAN, Karen, E. ,  CHIMNER, Christian, T.

CPC classification number: F01N3/2066 ,  F01N3/0842 ,  F01N3/0871 ,  F01N13/0097 ,  F01N2240/30 ,  F01N2560/026 ,  F01N2610/03 ,  F01N2900/08 ,  F02D41/0275 ,  F02D2200/1012 ,  F02D2250/36 ,  Y02T10/24

Abstract: A lean NO x trap (105) is a diesel exhaust aftertreatment system (103) is selectively denitrated based on a measure relating to the state and/or the performance of the exhaust aftertreatment system (103), or a portion thereof comprising the lean NO x trap (105), reaching a critical value. The critical value is varied according to the demands currently being place on the exhaust aftertreatment system (103). In one embodiment, the critical value is set based on engine speed- load information. The method regenerates more frequently when exhaust aftertreatment demands are high and less frequently when demands are low. The method improves aftertreatment performance while reducing aftertreatment fuel penalty.

Abstract translation: 贫NOx捕集器（105）是基于与排气后处理系统（103）的状态和/或性能相关的措施或其部分包括贫NOx捕集器（103）的柴油机废气后处理系统（103）被选择性脱硝 （105），达到临界值。 临界值根据排气后处理系统（103）当前的要求而变化。 在一个实施例中，临界值是基于发动机转速加载信息设定的。 当废气后处理需求高时，该方法更频繁地再生，当需求低时，该方法不太频繁。 该方法提高后处理性能，同时降低后处理燃料处罚。

公开(公告)号：WO2008012653A2

公开(公告)日：2008-01-31

申请号：PCT/IB2007/002122

申请日：2007-07-25

Applicant: EATON CORPORATION ,  REUTER, Johannes, W. ,  SHAMIS, Dmitry, A. ,  MCCARTHY, Jr., James, E. ,  CHIMNER, Christian, T.

Inventor： REUTER, Johannes, W. ,  SHAMIS, Dmitry, A. ,  MCCARTHY, Jr., James, E. ,  CHIMNER, Christian, T.

CPC classification number: F01N3/0842 ,  B01D53/90 ,  B01D53/9409 ,  B01D53/9495 ,  B01D2251/2062 ,  B01D2251/208 ,  B01D2258/012 ,  F01N3/0821 ,  F01N3/0871 ,  F01N13/0097 ,  F01N13/02 ,  F01N2250/12 ,  F01N2570/14 ,  F01N2610/04 ,  F02D41/0275 ,  Y02A50/2325 ,  Y02T10/24

Abstract: A method is provided for regenerating a LNT (13) in a diesel engine (9) exhaust aftertreatment system (7). Typically, the aftertreatment system (7) comprises a fuel reformer (12), a LNT (13), and a SCR catalyst (14) in that order. Over the course of the regeneration, the concentration or flow rate of syn gas is increased, peaked, and then reduced. Preferably, the syn gas concentration or flow rate and the fuel reformer (12) temperature are simultaneously controlled using at least a fuel injector and an engine intake air throttle. The pattern of increasing the syn gas concentration or flow rate during a first part of the regeneration and decreasing the syn gas concentration of flow rate in a latter part of the regeneration reduces the fuel penalty for the regeneration and improves the ammonia production rate as compared to a system in which the syn gas concentration or flow rate is essentially constant throughout the regeneration.

Abstract translation: 提供了一种在柴油发动机（9）废气后处理系统（7）中再生LNT（13）的方法。 通常，后处理系统（7）依次包括燃料重整器（12），LNT（13）和SCR催化剂（14）。 在再生过程中，合成气的浓度或流量增加，峰值，然后降低。 优选地，使用至少燃料喷射器和发动机进气节流阀同时控制合成气浓度或流量和燃料重整器（12）温度。 在再生的第一部分中增加合成气体浓度或流量的模式，并且在再生后期部分降低合成气体流速浓度降低了再生的燃料损失，并且提高了氨生产率，与 其中合成气浓度或流速在整个再生过程中基本上恒定的系统。