公开(公告)号：US08225600B2

公开(公告)日：2012-07-24

申请号：US12788597

申请日：2010-05-27

Applicant: Joseph R. Theis

Inventor： Joseph R. Theis

IPC: F01N3/20

CPC classification number: F01N3/0807 ,  F01N3/0814 ,  F01N3/206 ,  Y02T10/24

Abstract: A method for remediating a NOx-containing lean diesel emission includes providing a LNT/SCR catalyst system including a SCR catalyst and a first and second LNT. The SCR catalyst is disposed downstream of the second LNT which is disposed downstream of the first LNT. The lean NOx-containing diesel emission is introduced to the first LNT with the NOx being absorbed on to the first LNT forming a substantially NOx-free lean diesel emission. An exotherm generating agent is introduced to the substantially NOx-free diesel emission between the first LNT and the second LNT to form a reactive lean diesel emission. The reactive lean diesel emission is introduced to the second LNT generating a quantity of heat effective for desorbing absorbed NOx. A reducing agent is introduced into the desorbed NOx between the second LNT and SCR catalyst. The desorbed NOx diesel emission is remediated in the SCR catalyst.

Abstract translation: 一种用于补救含有NOx的贫柴油发动机的方法包括提供包括SCR催化剂和第一和第二LNT的LNT / SCR催化剂体系。 所述SCR催化剂设置在所述第二LNT的位于所述第一LNT的下游的下游。 将含稀少NOx的柴油发射引入第一LNT，其中NOx被吸收到第一LNT上，形成基本上无NOx的贫柴油发动机。 将放热产生剂引入第一LNT和第二LNT之间的基本上无NOx的柴油发射以形成反应性贫柴油发动机。 将反应性贫柴柴油发射引入第二LNT，产生有效解吸所吸收的NOx的热量。 将还原剂引入到第二LNT和SCR催化剂之间的脱附的NOx中。 在SCR催化剂中补充了脱硫的NOx柴油发射。

公开(公告)号：US06823843B1

公开(公告)日：2004-11-30

申请号：US10757947

申请日：2004-01-13

Applicant: Christian T. Goralski, Jr. ,  Joseph R. Theis ,  Gopichandra Surnilla ,  Justin A. Ura ,  Hungwen Jen

Inventor： Christian T. Goralski, Jr. ,  Joseph R. Theis ,  Gopichandra Surnilla ,  Justin A. Ura ,  Hungwen Jen

IPC: F02M700

CPC classification number: F02D41/0275 ,  F02D41/1441 ,  F02D41/146 ,  F02D2200/0802 ,  F02D2200/0804 ,  F02D2200/0806 ,  F02D2200/0816 ,  Y02T10/22

Abstract: A method is described for controlling lean and rich operation of an internal combustion engine coupled to a lean NOx trap. In one example, the termination of the lean air-fuel mixture is based on an oxygen storage capacity and temperature of the NOx trap. In another example, the level and duration of rich air-fuel ratio purging operation is also controlled based on the oxygen storage capacity of the NOx trap.

Abstract translation: 描述了一种用于控制连接到贫NOx捕集器的内燃机的精益和丰富操作的方法。 在一个实例中，稀薄空气 - 燃料混合物的终止基于NOx捕集器的储氧能力和温度。 在另一个实例中，还基于NOx捕集器的储氧能力来控制浓空燃比吹扫操作的水平和持续时间。

公开(公告)号：US07998447B2

公开(公告)日：2011-08-16

申请号：US10767339

申请日：2004-01-28

Applicant: Shane Elwart ,  Gopichandra Surnilla ,  Joseph R. Theis

Inventor： Shane Elwart ,  Gopichandra Surnilla ,  Joseph R. Theis

IPC: B01D53/48

CPC classification number: B01D53/96 ,  B01D2255/20753 ,  B01D2257/304

Abstract: A method of removing hydrogen sulfide from an emissions stream is disclosed, wherein the method includes directing the emissions stream into a hydrogen sulfide converter having a metal oxide catalyst, adsorbing the hydrogen sulfide in the emissions stream to the metal oxide catalyst in the hydrogen sulfide converter, reacting the hydrogen sulfide with at least one of an oxidant and a reductant in the hydrogen sulfide converter to chemically transform the hydrogen sulfide, and adjusting an air-fuel ratio of the emissions stream based on exhaust temperature of an emission control device, where the adjustment varies a duration of at least one of lean and rich operation to perform the adsorbing and reacting even as exhaust temperature varies.

Abstract translation: 公开了从排放物流中除去硫化氢的方法，其中所述方法包括将排放物流引入具有金属氧化物催化剂的硫化氢转化器中，将排放物流中的硫化氢吸附到硫化氢转化器中的金属氧化物催化剂 使所述硫化氢与所述硫化氢转化器中的氧化剂和还原剂中的至少一种反应，以化学转化所述硫化氢，并且基于排放控制装置的废气温度来调节排放流的空燃比，其中 调整改变贫和富操作中的至少一个的持续时间，以便即使排气温度变化也执行吸附和反应。

公开(公告)号：US07104045B2

公开(公告)日：2006-09-12

申请号：US10767395

申请日：2004-01-28

Applicant: Shane Elwart ,  Gopichandra Sumilla ,  Joseph R. Theis

Inventor： Shane Elwart ,  Gopichandra Sumilla ,  Joseph R. Theis

IPC: F01N3/00

CPC classification number: F01N13/02 ,  F01N3/20 ,  F01N2430/06 ,  F01N2570/04

Abstract: In an apparatus having a combustion engine and an emissions system including a catalytic converter and a metal oxide catalyst disposed downstream of the catalytic converter, a method of controlling a chemical transformation of hydrogen sulfide in an emissions stream to a less-noxious sulfur-containing compound is disclosed. The method includes reacting the hydrogen sulfide with the metal oxide catalyst to form a metal sulfide, monitoring a saturation of the metal oxide catalyst with the metal sulfide, and when a predetermined saturation of metal sulfide on the metal oxide is reached, changing an air/fuel ratio supplied to the combustion engine.

Abstract translation: 在具有内燃机和排放系统的装置中，包括催化转化器和设置在催化转化器下游的金属氧化物催化剂的排放系统，控制排放流中的硫化氢化学转化为较少有害的含硫化合物的方法 被披露。 该方法包括使硫化氢与金属氧化物催化剂反应以形成金属硫化物，用金属硫化物监测金属氧化物催化剂的饱和度，并且当金属氧化物上的金属硫化物达到预定饱和时，改变空气/ 燃料比被供给到内燃机。

公开(公告)号：US07673445B2

公开(公告)日：2010-03-09

申请号：US10985576

申请日：2004-11-09

Applicant: Christian T. Goralski, Jr. ,  Joseph R. Theis ,  Gopichandra Surnilla ,  Justin Ura ,  Shane Elwart

Inventor： Christian T. Goralski, Jr. ,  Joseph R. Theis ,  Gopichandra Surnilla ,  Justin Ura ,  Shane Elwart

IPC: F01N3/00

CPC classification number: F01N3/0814 ,  F01N3/0842 ,  F01N13/009 ,  F01N13/0097 ,  F02D41/0275 ,  Y02A50/2345 ,  Y02T10/22

Abstract: A mechanical apparatus including a combustion engine, a conduit for transporting an exhaust stream away from the engine, a first catalytic NOx storage and conversion region disposed along the conduit, and a second catalytic NOx storage and conversion region disposed along the conduit at a location downstream from the first catalytic NOx storage and conversion region is disclosed. Each of the first catalytic NOx storage and conversion region and the second catalytic NOx storage and conversion region includes at least one catalytic metal configured to convert NOx to NO2 when the engine is supplied a lean air/fuel mixture, and at least one NOx adsorbing compound configured to adsorb NO2 for storage when the engine is supplied a lean air/fuel mixture, and wherein the one of the first and the second catalytic NOx storage and conversion regions has a lower concentration of catalytic metal than the other of the first and second catalytic NOx storage and conversion regions.

Abstract translation: 一种机械设备，包括内燃发动机，用于将排气流输送离开发动机的导管，沿导管设置的第一催化剂NOx存储和转化区，以及沿下游位置设置的第二催化剂NOx储存和转化区 公开了从第一催化剂NOx储存和转化区域。 第一催化剂NOx存储和转化区域和第二催化剂NOx储存和转化区域中的每一个包括至少一种催化金属，其被配置为当发动机供应稀薄空气/燃料混合物时将NOx转化为NO 2，并且至少一种NOx吸附化合物 被配置为当所述发动机供应贫空气/燃料混合物时吸附NO 2用于储存，并且其中所述第一和第二催化剂NOx储存和转化区域中的所述一个与所述第一和第二催化剂中的另一个具有较低的催化金属浓度 NOx储存和转化区域。

公开(公告)号：US5630315A

公开(公告)日：1997-05-20

申请号：US556292

申请日：1995-10-06

Applicant: Joseph R. Theis

Inventor： Joseph R. Theis

IPC: F01N11/00 ,  F01N13/02 ,  F01N3/00

CPC classification number: F01N11/002 ,  F01N13/0097 ,  F01N2550/02 ,  Y02T10/47

Abstract: A catalytic converter catalyst diagnostic system comprising: a catalytic converter having a catalyst; a first sensor placed in a flow path of an engine exhaust gas flowing into the catalytic converter and providing a first measurement signal indicative of a temperature of the engine exhaust gas before it enters the catalytic converter catalyst; a second sensor mounted in or behind the catalytic converter catalyst and providing a second measurement signal indicative of a temperature of the catalytic converter catalyst; and a controller coupled to the first and second sensors and receiving the first and second measurement signals therefrom, wherein the controller determines a value indicative of exothermic activity of the catalytic converter responsive to the first and second measurement signals and compares the value indicative of exothermic activity to a threshold value, wherein values below the threshold value are indicative of an improperly operating catalytic converter catalyst.

Abstract translation: 一种催化转化器催化剂诊断系统，包括：具有催化剂的催化转化器; 放置在流入所述催化转化器的发动机废气的流路中的第一传感器，并且在进入所述催化转化器催化剂之前提供表示所述发动机废气的温度的第一测量信号; 安装在催化转化器催化剂中或其后面的第二传感器，并提供指示催化转化器催化剂的温度的第二测量信号; 以及控制器，耦合到第一和第二传感器并从其接收第一和第二测量信号，其中响应于第一和第二测量信号，控制器确定指示催化转化器的放热活性的值，并比较指示放热活性的值 阈值，其中低于阈值的值表示不正确操作的催化转化器催化剂。

公开(公告)号：US07918086B2

公开(公告)日：2011-04-05

申请号：US11254287

申请日：2005-10-19

Applicant: Gopichandra Surnilla ,  Christian T. Goralski, Jr. ,  Joseph E. Patterson ,  Joseph R. Theis ,  Shane Elwart

Inventor： Gopichandra Surnilla ,  Christian T. Goralski, Jr. ,  Joseph E. Patterson ,  Joseph R. Theis ,  Shane Elwart

IPC: F01N3/00

CPC classification number: F01N11/007 ,  F01N3/0807 ,  F01N3/0842 ,  F01N3/106 ,  F01N13/009 ,  F01N2560/025 ,  F01N2560/14 ,  F02D41/0275 ,  F02D41/1441 ,  F02D41/1475 ,  F02D2200/0802 ,  F02D2200/0808 ,  F02D2200/0816 ,  Y02T10/47

Abstract: Performance characteristics of a catalytic device are determined based on a particle size of a particulate component of the catalytic device. In this way, aging of a catalytic device can be accounted for in the calculation of performance characteristics.

Abstract translation: 基于催化装置的颗粒组分的粒度确定催化装置的性能特征。 这样，在计算性能特征时可以考虑催化装置的老化。

公开(公告)号：US07481046B2

公开(公告)日：2009-01-27

申请号：US11069526

申请日：2005-02-28

Applicant: Christian T. Goralski, Jr. ,  Joseph R. Theis ,  Justin Ura

Inventor： Christian T. Goralski, Jr. ,  Joseph R. Theis ,  Justin Ura

IPC: F01N3/00 ,  F01N3/10

CPC classification number: F01N3/0814 ,  F01N3/0842 ,  F01N3/106 ,  F01N13/009 ,  F01N2560/025 ,  F02D41/028 ,  F02D2200/0404 ,  F02M26/21 ,  F02M26/47

Abstract: A method of desulfating a catalytic NOx storage and conversion device is disclosed, wherein the method includes determining an amount of sulfur stored in the catalytic NOx storage and conversion device; determining an interval for exposing the catalytic NOx storage and conversion device to a rich exhaust stream based upon the determined amount of sulfur stored, wherein the interval is longer for lower amounts of sulfur stored and shorter for higher amounts of sulfur stored; and exposing the catalytic NOx storage and conversion device to the rich exhaust stream for the determined interval.

Abstract translation: 公开了一种催化NOx储存和转化装置脱硫的方法，其中所述方法包括确定存储在催化NOx储存和转化装置中的硫的量; 确定基于所确定的硫存储量将催化剂NO x存储和转化装置暴露于富排气流的间隔，其中对于较低量的硫储存而言较少量的硫的间隔更长; 并将所述催化剂NOx储存和转化装置暴露于所述浓排气流中所确定的间隔。

公开(公告)号：US5509267A

公开(公告)日：1996-04-23

申请号：US337703

申请日：1994-11-14

Applicant: Joseph R. Theis

Inventor： Joseph R. Theis

IPC: F01N11/00 ,  F01N13/02 ,  F01N3/20

CPC classification number: F01N11/007 ,  F01N13/009 ,  F01N2550/02 ,  Y02T10/47

Abstract: A catalytic treatment device diagnostic for an automotive exhaust system having at least two catalytic treatment devices wherein reduced oxygen storage capacity of each of the devices may be diagnosed without significant loss in engine air/fuel ratio control precision by varying the source of an actual air/fuel ratio feedback signal from a sensor positioned upstream of the devices during normal operation to a sensor mounted downstream of at least one of the devices during a diagnostic period. Measurable change in the oxygen content of exhaust gas passing through each of such devices then becomes available for analysis during the diagnostic period.

Abstract translation: 一种用于具有至少两个催化处理装置的汽车排气系统的催化处理装置诊断装置，其中可以通过改变实际空气/燃料比的来源来诊断每个装置的减少的氧气储存容量，而不会明显损失发动机空气/燃料比控制精度 在正常操作期间，位于设备上游的传感器的传感器燃料比反馈信号在诊断期间安装在至少一个装置的下游的传感器。 通过每个这样的装置的废气的氧含量的可测量的变化随后可用于诊断期间的分析。