公开(公告)号：US20110016848A1

公开(公告)日：2011-01-27

申请号：US12936151

申请日：2008-04-02

Applicant: Jeffrey A. Brooks

Inventor： Jeffrey A. Brooks

IPC: F01N3/00 ,  F01N3/023 ,  F01N3/10 ,  F01N9/00

CPC classification number: F01N3/025 ,  F01N3/0231 ,  F01N3/027 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/103 ,  F01N3/2006 ,  F01N3/2033 ,  F01N3/2066 ,  F01N9/002 ,  F01N13/009 ,  F01N2240/14 ,  F01N2240/16 ,  F01N2250/02 ,  F01N2250/04 ,  F01N2250/06 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2900/1404 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

Abstract: A system for treating diesel exhaust gases includes an engine for producing a diesel exhaust stream, a diesel particulate filter downstream of the engine and adapted to remove particulates from the exhaust stream, a heater upstream of the filter adapted to deliver energy in sufficient amounts to the exhaust stream to cause active regeneration of the filter, and a diesel oxidation catalyst upstream of the heater adapted to cause passive regeneration of the filter when the exhaust stream is above a light-off temperature of the diesel oxidation catalyst. A NOx reduction catalyst can be provided downstream of the heater. Methods for treating diesel exhaust gases are also disclosed.

Abstract translation: 一种用于处理柴油机废气的系统包括用于产生柴油机废气流的发动机，在发动机下游的柴油微粒过滤器，并且适于从排气流中除去微粒;过滤器上游的加热器，其适于将足够量的能量输送到 废气流以引起过滤器的主动再生，以及当排气流高于柴油机氧化催化剂的起燃温度时，加热器上游的柴油氧化催化剂适于引起过滤器的被动再生。 可以在加热器的下游设置NOx还原催化剂。 还公开了处理柴油机废气的方法。

公开(公告)号：US07861517B2

公开(公告)日：2011-01-04

申请号：US11271716

申请日：2005-11-09

Applicant: David Goulette ,  Joseph V. Bonadies

Inventor： David Goulette ,  Joseph V. Bonadies

IPC: F01N3/00

CPC classification number: F01N3/2033 ,  F01N3/0231 ,  F01N3/029 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/206 ,  F01N3/2066 ,  F01N9/00 ,  F01N11/002 ,  F01N2240/30 ,  F01N2610/04 ,  F01N2610/05 ,  F01N2900/1631 ,  Y02T10/26 ,  Y02T10/47

Abstract: A method for controlling temperature of a catalyst. The method includes monitoring temperature of the catalyst and determining that the catalyst is outside of a catalyst operating temperature window. If the catalyst temperature is high enough for exothermic reaction to occur, reformate is injected into the catalyst. If the catalyst not high enough for exothermic reaction to occur, reformate is injected upstream of the catalyst and ignited.

Abstract translation: 一种控制催化剂温度的方法。 该方法包括监测催化剂的温度并确定催化剂在催化剂工作温度范围之外。 如果催化剂温度足够高以致发生放热反应，则将重整产物注入到催化剂中。 如果催化剂不足以发生放热反应，则将重整产物注入催化剂的上游并点燃。

公开(公告)号：US20100319323A1

公开(公告)日：2010-12-23

申请号：US12080752

申请日：2008-04-05

Applicant: Mi Yan

Inventor： Mi Yan

IPC: F01N9/00 ,  F01N3/10 ,  F01N5/02 ,  F01N3/023

CPC classification number: F01N3/10 ,  F01N3/0807 ,  F01N3/206 ,  F01N2240/30 ,  F01N2250/02 ,  F01N2570/14 ,  F01N2610/03 ,  Y02A50/2344

Abstract: An aftertreatment device for reducing nitrogen oxides (NOx), particulate matter (PM), hydrocarbon (HC), and carbon monoxide (CO) generated by a compression-ignition (CI) engine. In this device, lean exhaust air generated in the CI engine is converted to rich exhaust air, and energy used for the conversion is recycled using an energy recovery device. The result rich exhaust air then pass through an oxidation catalyst, where NOx is reduced with CO and HC.

Abstract translation: 一种用于还原由压缩点火（CI）发动机产生的氮氧化物（NOx），颗粒物质（PM），烃（HC）和一氧化碳（CO））的后处理装置。 在该装置中，在CI发动机中产生的贫气排放空气被转换为浓缩的排气，并且使用能量回收装置回收用于转化的能量。 结果，浓缩的排气然后通过氧化催化剂，其中用CO和HC还原NOx。

公开(公告)号：US07827784B2

公开(公告)日：2010-11-09

申请号：US11833041

申请日：2007-08-02

Applicant: Takuji Matsubara ,  Satoshi Yoshizaki

Inventor： Takuji Matsubara ,  Satoshi Yoshizaki

IPC: F01N3/00

CPC classification number: F02D13/0234 ,  F01N3/0807 ,  F01N3/0835 ,  F01N13/0097 ,  F01N2390/00 ,  F01N2390/04 ,  F01N2410/12 ,  F02D41/0002 ,  F02D41/0235 ,  F02D41/062 ,  F02D2013/0292 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2250/41 ,  Y02T10/18 ,  Y02T10/20 ,  Y02T10/42

Abstract: An exhaust gas control apparatus for an internal combustion engine includes an exhaust gas purification catalyst device provided in an exhaust passage for the engine; an HC adsorption portion, provided in the exhaust passage, which adsorbs hydrocarbon in exhaust gas; a passage switching portion that selectively closes/opens a second passage bypassing the HC adsorption portion using an intake pipe negative pressure in the engine so that the exhaust gas flows in a first passage provided with the HC adsorption portion, or in the first passage and the second passage; and a control portion that controls the negative pressure so that the second passage is closed, when a predetermined condition is satisfied at the time of start of the engine. The control portion executes at least one of a control that advances the valve timing of an intake valve, and a control that reduces the opening amount of a throttle valve.

Abstract translation: 用于内燃机的排气控制装置包括设置在用于发动机的排气通道中的排气净化催化剂装置， 设置在排气通道中的HC吸附部分，其吸附废气中的碳氢化合物; 通道切换部分，其使用发动机中的进气管负压来选择性地关闭/打开绕过HC吸附部分的第二通道，使得排气在设置有HC吸附部分的第一通道中流动，或者在第一通道和 第二段 以及当在发动机起动时满足预定条件时控制负压使得第二通道关闭的控制部分。 控制部执行使进气门的气门正时进行的控制和减小节流阀的开度的控制中的至少一个。

公开(公告)号：US07802422B2

公开(公告)日：2010-09-28

申请号：US11571254

申请日：2005-06-20

Applicant: Christophe Colignon

Inventor： Christophe Colignon

IPC: F01N3/00

CPC classification number: F01N3/0842 ,  B01D53/9495 ,  F01N3/023 ,  F01N3/0231 ,  F01N3/035 ,  F01N3/0807 ,  F01N9/002 ,  F01N13/009 ,  F01N2430/04 ,  F01N2510/065 ,  F01N2550/04 ,  F01N2560/06 ,  F01N2570/10 ,  F01N2570/12 ,  F02B37/00 ,  F02D41/0245 ,  F02D41/029 ,  F02D41/405 ,  Y02A50/2325 ,  Y02T10/26 ,  Y02T10/44 ,  Y02T10/47

Abstract: Method of assisting regeneration of a depollution device (1) associated with an oxidation catalyst (2) and integrated in an exhaust line (3) of a motor vehicle diesel engine (4), in which a common ramp supplies fuel to the cylinders of the engine, by shifting the engine (4), through modification of engine operation control parameters and use of fuel post-injections into the cylinders, among four strategies of regeneration of the depollution device (1), the first called normal engine operation strategy, the second called level 1 strategy, the third called level 2 strategy and the fourth called over-calibrated level 2 strategy, enabling different thermal levels to be achieved in the exhaust line, with looping back of the strategies, until detection of a request for stopping the regeneration.

Abstract translation: 辅助与氧化催化剂（2）相关并且集成在机动车辆柴油发动机（4）的排气管线（3）中的分解装置（1）的再生方法，其中公共斜坡将燃料供应到 通过改变发动机（4），通过改变发动机运行控制参数和使用燃料后喷射到气缸中，在分解装置（1）的再生的四种策略中，首先称为正常的发动机运行策略， 第二个称为1级策略，第三个被称为2级策略，第四个被称为过度校准的2级策略，使排气管线能够实现不同的热水平，并循环回到策略，直到检测到停止 再生。

公开(公告)号：US20100236224A1

公开(公告)日：2010-09-23

申请号：US12727473

申请日：2010-03-19

Applicant: Sanath V. Kumar ,  Stanley A. Roth

Inventor： Sanath V. Kumar ,  Stanley A. Roth

IPC: F01N3/035 ,  F01N3/02

CPC classification number: F01N3/0807 ,  B01D53/9422 ,  B01D53/9472 ,  B01D53/9477 ,  B01D53/9481 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2251/208 ,  B01D2255/1021 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/20776 ,  B01D2255/50 ,  B01D2255/9032 ,  B01D2255/91 ,  B01D2255/9155 ,  B01D2258/012 ,  F01N3/033 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/2073 ,  F01N3/22 ,  F01N3/30 ,  F01N13/009 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2270/04 ,  F01N2570/14 ,  F01N2570/18 ,  F01N2610/03 ,  F01N2610/04 ,  F01N2610/05 ,  Y02A50/2344 ,  Y02T10/24

Abstract: Systems and methods for abating NOx in an exhaust stream are provided. System using a lean NOx trap, an air injector and optional catalysts and filters are described. The emissions treatment system is advantageously used for the treatment of exhaust streams from diesel engines and lean burn gasoline engines.

Abstract translation: 提供了用于减轻废气流中的NOx的系统和方法。 描述了使用贫NOx捕集器，空气喷射器和任选的催化剂和过滤器的系统。 排放物处理系统有利地用于处理来自柴油发动机和贫燃汽油发动机的废气流。

公开(公告)号：US20100199638A1

公开(公告)日：2010-08-12

申请号：US12705385

申请日：2010-02-12

Applicant: Hisayo Yoshikawa

Inventor： Hisayo Yoshikawa

IPC: F01N11/00

CPC classification number: F01N11/00 ,  F01N3/0807 ,  F01N2560/026 ,  Y02T10/20 ,  Y02T10/47

Abstract: An apparatus for diagnosing deterioration of a NOx absorption-reduction catalyst provided at an exhaust path of an engine includes a sensor disposed upstream of the catalyst to sense a NOx concentration in emission gas, a calculating unit calculating a first ratio of emission of NOx to inflow of NOx or a second ratio of absorption of NOx to inflow of NOx, and a diagnosing unit which diagnoses deterioration of the catalyst using the first or second ratio as an indicator. The calculating unit calculates inflow of NOx based on an output of the sensor and either the flow volume of the emission gas or a correlation value of the flow volume of the emission gas, calculates the absorption of NOx based on the amount of rich components required for reducing the NOx, and calculates the emission of NOx based on the difference between the inflow and absorption of NOx.

Abstract translation: 用于诊断设置在发动机的排气路径处的NOx吸收还原催化剂的劣化的装置包括设置在催化剂上游以感测排放气体中的NOx浓度的传感器，计算单元，其计算第一NOx排放比率 的NOx或NOx的吸收的第二比例与NOx的流入，以及诊断单元，其使用第一或第二比值作为指标来诊断催化剂的劣化。 计算单元基于传感器的输出和排放气体的流量或排放气体的流量的相关值来计算NOx的流入，基于所需的富成分的量来计算NOx的吸收量 降低NOx，并且基于NOx的流入和吸收之间的差异来计算NOx的排放。

公开(公告)号：US20100115924A1

公开(公告)日：2010-05-13

申请号：US12451422

申请日：2008-04-16

Applicant: Masashi Gabe ,  Daiji Nagaoka

Inventor： Masashi Gabe ,  Daiji Nagaoka

IPC: F01N3/20 ,  F01N11/00

CPC classification number: F01N3/0814 ,  B01D53/9409 ,  B01D53/9495 ,  B01D2255/91 ,  F01N3/0807 ,  F01N3/0885 ,  F01N9/00 ,  F01N2560/02 ,  F01N2560/022 ,  F01N2560/023 ,  F01N2560/024 ,  F01N2560/025 ,  F01N2570/14 ,  F01N2900/1621 ,  Y02A50/2344 ,  Y02T10/47

Abstract: In a NOx purification system 1 provided with a NOx occlusion reduction catalyst 20 and a control unit 30 which executes a NOx regeneration control and a sulfur poisoning regeneration control, a binary λ sensor 26 and a reducing agent concentration sensor 25 for detecting a concentration of the reducing agent are disposed downstream of the NOx occlusion reduction catalyst 20. The level of deterioration of the NOx occlusion reduction catalyst 20 caused by sulfur poisoning is estimated on the basis of a time period Ta from a time point T3 at which a marked decrease of oxygen concentration is detected by the binary λ sensor 26 to the time point T2 at which the marked increase of the oxygen concentration is detected by the reducing agent concentration sensor 25 under the NOx regeneration control. Accordingly, the sulfur poisoning amount is accurately estimated and by performing the sulfur poisoning regeneration at an appropriate frequency, any excessive sulfur poisoning regeneration can be avoided, thereby preventing deterioration of mileage.

Abstract translation: 在设置有NOx吸留还原催化剂20的NOx净化系统1和执行NOx再生控制和硫中毒再生控制的控制单元30中，检测二氧化碳浓度传感器26和还原剂浓度传感器25 还原剂设置在NOx吸留还原催化剂20的下游。由硫中毒引起的NOx吸留还原催化剂20的劣化水平基于来自显着降低的氧气的时间点T3的时间段Ta 浓度由二元λ传感器26检测到在NOx再生控制下通过还原剂浓度传感器25检测到氧浓度显着增加的时间点T2。 因此，能够精确地估计硫中毒量，通过以适当的频率进行硫中毒再生，可以避免任何过度的硫中毒再生，从而防止里程恶化。

公开(公告)号：US20100115919A1

公开(公告)日：2010-05-13

申请号：US12594865

申请日：2008-03-21

Applicant: Kimikazu Yoda ,  Takaaki Itou ,  Keisuke Sano ,  Kazuhiro Wakao

Inventor： Kimikazu Yoda ,  Takaaki Itou ,  Keisuke Sano ,  Kazuhiro Wakao

IPC: F01N3/00 ,  F01N9/00

CPC classification number: F01N11/00 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2255/50 ,  B01D2255/91 ,  B01D2257/404 ,  F01N3/0807 ,  F01N3/18 ,  F01N3/20 ,  F01N2570/14 ,  Y02A50/2344 ,  Y02T10/20 ,  Y02T10/47

Abstract: The present invention relates to an exhaust emission control device having an NOx adsorbent, and makes it possible to judge whether the performance of the NOx adsorbent is degraded temporarily or permanently. The amounts of NOx and water adsorbed by the NOx adsorbent are measured during an actual operation of an internal combustion engine. A reference line indicating the correlation between a preselected water adsorption amount and NOx adsorption amount is then referenced to determine a reference value y0 of the NOx adsorption amount that corresponds to a measured value x1 of the water adsorption amount. Next, a measured value y1 of the NOx adsorption amount is compared against the reference value y0 to output a signal in which the result of the comparison is reflected.

Abstract translation: 本发明涉及一种具有NOx吸附剂的废气排放控制装置，并且能够判断NOx吸附剂的性能是否暂时或永久地劣化。 在内燃机的实际操作期间，测量NOx吸附剂吸附的NOx和水的量。 然后参考表示预选水吸附量与NOx吸附量之间的相关性的参考线，以确定对应于水吸附量的测量值x1的NOx吸附量的参考值y 0。 接下来，将NOx吸附量的测量值y1与参考值y0进行比较，以输出反映比较结果的信号。

公开(公告)号：US20100111827A1

公开(公告)日：2010-05-06

申请号：US12596480

申请日：2008-04-17

Applicant: Takaaki Kanazawa

Inventor： Takaaki Kanazawa

IPC: C01B39/06

CPC classification number: B01J20/186 ,  F01N3/0807

Abstract: A zeolite is impregnated with a ferric chloride aqueous solution; and thereafter it is heated at 500° C.-700° C. in an atmosphere that is free from moisture, thereby subjecting Fe to ion exchange. By means of heating it in an atmosphere that is free from moisture, it is possible to produce an NOx adsorption material that demonstrates NOx adsorbing performance even after a hydrothermal durability test.

Abstract translation: 沸石用氯化铁水溶液浸渍; 然后在不含水分的气氛中在500℃-700℃下加热，从而进行Fe离子交换。 通过在没有水分的气氛中进行加热，即使在水热耐久试验后也能够生成显示NOx吸附性能的NOx吸附材料。