公开(公告)号：US06301887B1

公开(公告)日：2001-10-16

申请号：US09580534

申请日：2000-05-26

申请人： Alexander Gorel ,  John Lawrence Calabrese

发明人： Alexander Gorel ,  John Lawrence Calabrese

IPC分类号： F02B3344

CPC分类号： F02B29/0468 ,  F01N3/0222 ,  F01N2470/12 ,  F02B3/06 ,  F02B37/00 ,  F02M26/05 ,  F02M26/06 ,  F02M26/07 ,  F02M26/10 ,  F02M26/15 ,  F02M26/16 ,  F02M26/26 ,  F02M26/33 ,  F02M26/35 ,  Y02T10/144 ,  Y02T10/146 ,  Y02T10/20 ,  Y10S55/30

摘要： A low pressure EGR system suitable for use as a passive retrofit system is disclosed for moving vehicles equipped with a diesel engine. The EGR loop inlet is positioned upstream of the exhaust particulate filter and downstream of the turbine to utilize backpressure created by the exhaust particulate filter to insure EGR flow in the loop. A catalyzed soot filter in communication with the EGR pickup insures cleansed EGR gases at the EGR return downstream of the air filter and upstream of the compressor. A corrugated EGR line provides cooling of the EGR gases.

摘要翻译： 公开了适用于被动改造系统的低压EGR系统，用于移动配备有柴油发动机的车辆。 EGR回路入口位于排气微粒过滤器的上游并且在涡轮的下游，以利用由排气微粒过滤器产生的背压来确保循环中的EGR流。 与EGR拾取器连通的催化烟灰过滤器确保在空气过滤器下游和压缩机上游的EGR返回处的清洁的EGR气体。 波纹状EGR管线提供EGR气体的冷却。

公开(公告)号：US07055311B2

公开(公告)日：2006-06-06

申请号：US10232648

申请日：2002-08-31

申请人： Tilman Wolfram Beutel ,  John Lawrence Calabrese

发明人： Tilman Wolfram Beutel ,  John Lawrence Calabrese

IPC分类号： F01N3/00

CPC分类号： F02D41/0082 ,  B01D53/9454 ,  B01D53/9495 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0885 ,  F01N13/009 ,  F01N13/0097 ,  F01N13/011 ,  F01N2510/06 ,  F01N2570/04 ,  F02D41/0275 ,  F02D2250/32 ,  Y02A50/2324 ,  Y02T10/22

摘要： An NOx emission system for diesel powered vehicles has a “Y” exhaust system with an NOx adsorber catalyst in each leg and an oxidation catalyst in the combined leg. One bank of cylinders sends exhaust gases to one of the “Y” legs while a second bank of cylinders send exhaust gases to the other “Y” leg. Composition of the exhaust gases in each leg is independently controlled by the engine's ECU so that exhaust gases in one leg are rich for regenerating the NOx adsorber catalyst in that leg while exhaust gas composition in the other leg is lean so that the combined gas stream is always lean and reductant slip is oxidized in the oxidation catalyst.

摘要翻译： 用于柴油动力车辆的NOx排放系统具有在每个支路中具有NOx吸附剂催化剂的“Y”排气系统和组合腿部中的氧化催化剂。 一排气缸向“Y”脚之一发送废气，而第二组气缸将废气发送到另一“Y”段。 每个支腿中的废气的组成由发动机的ECU独立地控制，使得一条腿中的排气富集，用于在该腿中再生NOx吸附剂催化剂，而另一条腿中的废气组成是稀的，使得组合的气流为 在氧化催化剂中总是贫和还原剂滑移被氧化。

公开(公告)号：US06581374B2

公开(公告)日：2003-06-24

申请号：US10133769

申请日：2002-04-26

申请人： Joseph A. Patchett ,  Rudolfus Petrus Verbeek ,  Karl Richard Grimston ,  Gary Wayne Rice ,  John Lawrence Calabrese ,  Mathijs Van Genderen

发明人： Joseph A. Patchett ,  Rudolfus Petrus Verbeek ,  Karl Richard Grimston ,  Gary Wayne Rice ,  John Lawrence Calabrese ,  Mathijs Van Genderen

IPC分类号： F01N300

CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/103 ,  F01N5/02 ,  F01N9/005 ,  F01N13/009 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/12 ,  F01N2900/0404 ,  F01N2900/14 ,  F01N2900/1402 ,  F01N2900/1622 ,  F01N2900/1808 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

摘要： A diesel powered vehicle is provided with an SCR system which uses an external reducing reagent to convert NOx emissions in a manner which accounts for the effects of NOx transient emissions on the reducing catalyst. Actual NOx emissions produced by the engine are filtered using a variable NOx time constant in turn correlated to the reductant/NOx storage capacity of the reducing catalyst at its current temperature to account for changes in the SCR system attributed to NOx transient emissions. Catalyst temperature is filtered using a variable catalyst time constant corresponding to current space velocity of the exhaust gas to account for changes in the catalyst temperature attributed to NOx transient emissions. The reductant is metered on the basis of the filtered, corrected NOx concentration applied at a NSR ratio based, in turn, on the filtered, corrected reducing catalyst temperature.

公开(公告)号：US07150145B2

公开(公告)日：2006-12-19

申请号：US10740119

申请日：2003-12-17

申请人： Joseph A. Patchett ,  Rudolfus Petrus Verbeek ,  Karl Richard Grimston ,  Gary Wayne Rice ,  John Lawrence Calabrese ,  Mathus Van Genderen

发明人： Joseph A. Patchett ,  Rudolfus Petrus Verbeek ,  Karl Richard Grimston ,  Gary Wayne Rice ,  John Lawrence Calabrese ,  Mathus Van Genderen

IPC分类号： F01N3/00

CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/103 ,  F01N5/02 ,  F01N9/005 ,  F01N13/009 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/12 ,  F01N2900/0404 ,  F01N2900/14 ,  F01N2900/1402 ,  F01N2900/1622 ,  F01N2900/1808 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

摘要： A diesel powered vehicle is provided with an SCR system which uses an external reducing reagent to convert NOx emissions in a manner which accounts for the effects of NOx transient emissions on the reducing catalyst. Actual NOx emissions produced by the engine are filtered using a variable NOx time constant in turn correlated to the reductant/NOx storage capacity of the reducing catalyst at its current temperature to account for changes in the SCR system attributed to NOx transient emissions. Catalyst temperature is filtered using a variable catalyst time constant corresponding to current space velocity of the exhaust gas to account for changes in the catalyst temperature attributed to NOx transient emissions. The reductant is metered on the basis of the filtered, corrected NOx concentration applied at a NSR ratio based, in turn, on the filtered, corrected reducing catalyst temperature.

公开(公告)号：US06662553B2

公开(公告)日：2003-12-16

申请号：US10133716

申请日：2002-04-26

申请人： Joseph A. Patchett ,  Rudolfus Petrus Verbeek ,  Karl Richard Grimston ,  Gary Wayne Rice ,  John Lawrence Calabrese ,  Mathijs Van Genderen

发明人： Joseph A. Patchett ,  Rudolfus Petrus Verbeek ,  Karl Richard Grimston ,  Gary Wayne Rice ,  John Lawrence Calabrese ,  Mathijs Van Genderen

IPC分类号： F01N300

CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/103 ,  F01N5/02 ,  F01N9/005 ,  F01N13/009 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/12 ,  F01N2900/0404 ,  F01N2900/14 ,  F01N2900/1402 ,  F01N2900/1622 ,  F01N2900/1808 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

摘要： A diesel powered vehicle is provided with an SCR system which uses an external reducing reagent to convert NOx emissions in a manner which accounts for the effects of NOx transient emissions on the reducing catalyst. Actual NOx emissions produced by the engine are filtered using a variable NOx time constant in turn correlated to the reductant/NOx storage capacity of the reducing catalyst at its current temperature to account for changes in the SCR system attributed to NOx transient emissions. Catalyst temperature is filtered using a variable catalyst time constant corresponding to current space velocity of the exhaust gas to account for changes in the catalyst temperature attributed to NOx transient emissions. The reductant is metered on the basis of the filtered, corrected NOx concentration applied at a NSR ratio based, in turn, on the filtered, corrected reducing catalyst temperature.

公开(公告)号：US06415602B1

公开(公告)日：2002-07-09

申请号：US09688663

申请日：2000-10-16

申请人： Joseph A. Patchett ,  Rudolfus Petrus Verbeek ,  Karl Richard Grimston ,  Gary Wayne Rice ,  John Lawrence Calabrese ,  Mathijs Van Genderen

发明人： Joseph A. Patchett ,  Rudolfus Petrus Verbeek ,  Karl Richard Grimston ,  Gary Wayne Rice ,  John Lawrence Calabrese ,  Mathijs Van Genderen

IPC分类号： F01N300

CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/103 ,  F01N5/02 ,  F01N9/005 ,  F01N13/009 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/12 ,  F01N2900/0404 ,  F01N2900/14 ,  F01N2900/1402 ,  F01N2900/1622 ,  F01N2900/1808 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

摘要： A diesel powered vehicle is provided with an SCR system which uses an external reducing reagent to convert NOx emissions in a manner which accounts for the effects of NOx transient emissions on the reducing catalyst. Actual NOx emissions produced by the engine are filtered using a variable NOx time constant in turn correlated to the reductant/NOx storage capacity of the reducing catalyst at its current temperature to account for changes in the SCR system attributed to NOx transient emissions. Catalyst temperature is filtered using a variable catalyst time constant corresponding to current space velocity of the exhaust gas to account for changes in the catalyst temperature attributed to NOx transient emissions. The reductant is metered on the basis of the filtered, corrected NOx concentration applied at a NSR ratio based, in turn, on the filtered, corrected reducing catalyst temperature.