公开(公告)号：US20080092528A1

公开(公告)日：2008-04-24

申请号：US11629668

申请日：2005-06-23

申请人： Shunsuke Toshioka ,  Kuniaki Niimi

发明人： Shunsuke Toshioka ,  Kuniaki Niimi

IPC分类号： F01N3/20

CPC分类号： F01N9/00 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/0878 ,  F01N3/0885 ,  F01N13/011 ,  F01N2560/026 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2900/08 ,  F02D41/0275 ,  Y02C20/10 ,  Y02T10/47

摘要： When a fuel as a reducing agent is supplied to a NOx catalyst on which a NOx or a SOx is reduced, a flow rate of exhaust gas that flows through an exhaust passage is changed, and the fuel is supplied to the exhaust gas flowing through the exhaust passage at a plurality of timings (ΔT1, ΔT2) when the exhaust gas flows at different flow rates.

摘要翻译： 当作为还原剂的燃料被供给到NOx或SOx被还原的NOx催化剂时，流过排气通道的排气的流量被改变，并且燃料被供给到流过 当排气以不同的流量流动时，在多个定时（DeltaT 1，DeltaT 2）处的排气通道。

公开(公告)号：US09593610B2

公开(公告)日：2017-03-14

申请号：US14409743

申请日：2012-06-20

申请人： Shunsuke Toshioka ,  Keishi Takada ,  Shigeki Nakayama ,  Junya Nakajima ,  Ichiro Yamamoto

发明人： Shunsuke Toshioka ,  Keishi Takada ,  Shigeki Nakayama ,  Junya Nakajima ,  Ichiro Yamamoto

IPC分类号： B01D50/00 ,  F01N3/08 ,  F01N3/20 ,  F01N9/00 ,  F01N3/021 ,  F01N13/00 ,  B01D53/94

CPC分类号： F01N3/0842 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/021 ,  F01N3/2066 ,  F01N3/208 ,  F01N9/00 ,  F01N13/009 ,  F01N2610/02 ,  F01N2900/1616 ,  F01N2900/1812 ,  Y02T10/24 ,  Y02T10/47

摘要： An object of the present invention is to provide a technique with which an amount of reducing agent adsorbed to a selective reduction type NOx catalyst provided in an exhaust passage of an internal combustion engine can be controlled to a target adsorption amount. In an exhaust gas purification system for an internal combustion engine according to the present invention, when a reducing agent adsorption amount adsorbed on a selective reduction type NOx catalyst is held at a target adsorption amount, a reducing agent supply amount supplied from a supply apparatus per unit time is controlled to an amount obtained by adding a predetermined amount to a reduction consumption amount, which is an amount of reducing agent consumed per unit time by the selective reduction type NOx catalyst for NOx reduction.

摘要翻译： 本发明的目的是提供一种技术，其中可以将设置在内燃机的排气通道中的选择还原型NOx催化剂吸附的还原剂的量控制在目标吸附量。 在本发明的内燃机的废气净化系统中，当吸附在选择还原型NOx催化剂上的还原剂吸附量保持在目标吸附量时，从供给装置供给的还原剂供给量 单位时间被控制为通过将预定量添加到通过用于NOx还原的选择还原型NOx催化剂的每单位时间消耗的还原剂量的减少消耗量而获得的量。

公开(公告)号：US08359830B2

公开(公告)日：2013-01-29

申请号：US12308251

申请日：2008-03-19

申请人： Yutaka Tanai ,  Tomihisa Oda ,  Kazuhiro Itoh ,  Shunsuke Toshioka ,  Takekazu Itoh

发明人： Yutaka Tanai ,  Tomihisa Oda ,  Kazuhiro Itoh ,  Shunsuke Toshioka ,  Takekazu Itoh

IPC分类号： F01N3/00 ,  F01N3/10 ,  G01M15/00

CPC分类号： F01N3/208 ,  B01D53/9409 ,  B01D53/9495 ,  B01D2251/2067 ,  F01N3/106 ,  F01N13/009 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0412 ,  F01N2900/1402 ,  F01N2900/1622 ,  F02B37/00 ,  F02D41/123 ,  Y02T10/24

摘要： In an internal combustion engine, an NOX selective reducing catalyst is arranged in an engine exhaust passage. Urea is fed in the NOX selective reducing catalyst, ammonia generated from this urea is adsorbed at the NOX selective reducing catalyst, and the NOX contained in the exhaust gas is selectively reduced mainly by the adsorbed ammonia. An NOX sensor able to detect NOX and ammonia contained in the exhaust gas is arranged in the engine exhaust passage downstream of the NOX selective reducing catalyst. It is judged that the amount of adsorption of ammonia at the NOX selective reducing catalyst is saturated based on the detection value of the NOX sensor when the feed of fuel to the engine is stopped during the deceleration operation.

摘要翻译： 在内燃机中，在发动机排气通路中配置NO x选择还原催化剂。 在NO x选择还原催化剂中加入尿素，由该尿素生成的氨被NOX选择还原催化剂吸附，主要由吸附氨选择性地还原废气中的NOX。 在NO x选择还原催化剂下游的发动机排气通道中配置有能够检测废气中含有的NO x和NO x的NO X传感器。 在减速操作期间，当在发动机的燃料供给停止时，根据NOX传感器的检测值判断为NO x选择还原催化剂的氨的吸附量饱和。

公开(公告)号：US08132402B2

公开(公告)日：2012-03-13

申请号：US12309442

申请日：2008-04-09

申请人： Shunsuke Toshioka ,  Tomihisa Oda ,  Takekazu Itoh ,  Yutaka Tanai

发明人： Shunsuke Toshioka ,  Tomihisa Oda ,  Takekazu Itoh ,  Yutaka Tanai

IPC分类号： F01N3/00

CPC分类号： F01N11/007 ,  B01D53/90 ,  B01D53/9495 ,  B01D2251/2067 ,  B01D2255/50 ,  B01D2257/404 ,  F01N3/2066 ,  F01N13/009 ,  F01N2550/03 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2900/1818 ,  Y02T10/24 ,  Y02T10/47

摘要： In an internal combustion engine, an NOx selective reduction catalyst is arranged in the engine exhaust passage, and a urea aqueous solution feed valve is arranged in the engine exhaust passage upstream of the NOx selective reduction catalyst. Based on the detections results of an NOx purification rate detecting means for detecting the NOx purification rate by the NOx selective reduction catalyst, a urea aqueous solution feed amount detecting means for detecting the amount of feed of the urea aqueous solution, and a urea aqueous solution concentration detecting means for detecting the concentration of the urea aqueous solution, abnormalities in the NOx selective reduction catalyst, urea aqueous solution feed system, and urea aqueous solution are judged.

摘要翻译： 在内燃机中，在发动机排气通路内配置有NOx选择还原催化剂，在NOx选择还原催化剂的上游侧的发动机排气通路内配置尿素水溶液供给阀。 基于用于通过NOx选择还原催化剂检测NOx净化率的NOx净化率检测单元的检测结果，检测尿素水溶液的供给量的尿素水溶液供给量检测单元和尿素水溶液 用于检测尿素水溶液的浓度的浓度检​​测装置，NOx选择还原催化剂，尿素水溶液供给系统和尿素水溶液的异常。

公开(公告)号：US20100205940A1

公开(公告)日：2010-08-19

申请号：US12675947

申请日：2008-09-03

申请人： Shunsuke Toshioka ,  Tomihisa Oda ,  Yutaka Tanai ,  Shinya Asaura ,  Yoshitaka Nakamura

发明人： Shunsuke Toshioka ,  Tomihisa Oda ,  Yutaka Tanai ,  Shinya Asaura ,  Yoshitaka Nakamura

IPC分类号： F01N11/00 ,  F01N3/10 ,  F02D45/00

CPC分类号： F01N11/00 ,  B01D53/90 ,  B01D53/9418 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/2062 ,  B01D2255/1021 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/50 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0097 ,  F01N2550/05 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/1453 ,  F01N2900/1621 ,  F01N2900/1806 ,  F01N2900/1814 ,  Y02T10/24 ,  Y02T10/47

摘要： In an exhaust emission control system of an internal combustion engine, a NOx selective reduction catalyst is disposed in an engine exhaust passage, and an aqueous solution of urea stored in an aqueous-urea tank is supplied to the NOx selective reduction catalyst so as to selectively reduce NOx. A NOx sensor is provided in the engine exhaust passage downstream of the NOx selective reduction catalyst for detecting the NOx conversion efficiency of the NOx selective reduction catalyst, and the concentration of aqueous urea in the aqueous-urea tank is estimated from the detected NOx conversion efficiency. The exhaust emission control system and method make it possible to detect the concentration of aqueous urea at reduced cost.

摘要翻译： 在内燃机的废气排放控制系统中，将NOx选择还原催化剂配置在发动机排气通路内，将存储在尿素水箱内的尿素水溶液供给至NOx选择还原催化剂，以选择性地 减少NOx。 在用于检测NOx选择还原催化剂的NOx转化效率的NOx选择还原催化剂下游的发动机排气通道中设置NOx传感器，并且根据检测到的NOx转化效率估计尿素水溶液中的尿素浓度 。 废气排放控制系统和方法可以以降低的成本检测含水尿素的浓度。

公开(公告)号：US20100043405A1

公开(公告)日：2010-02-25

申请号：US12308251

申请日：2008-03-19

申请人： Yutaka Tanai ,  Tomihisa Oda ,  Kazuhiro Itoh ,  Shunsuke Toshioka ,  Takekazu Itoh

发明人： Yutaka Tanai ,  Tomihisa Oda ,  Kazuhiro Itoh ,  Shunsuke Toshioka ,  Takekazu Itoh

IPC分类号： F01N9/00 ,  F01N3/10

CPC分类号： F01N3/208 ,  B01D53/9409 ,  B01D53/9495 ,  B01D2251/2067 ,  F01N3/106 ,  F01N13/009 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0412 ,  F01N2900/1402 ,  F01N2900/1622 ,  F02B37/00 ,  F02D41/123 ,  Y02T10/24

摘要： In an internal combustion engine, an NOX selective reducing catalyst is arranged in an engine exhaust passage. Urea is fed in the NOX selective reducing catalyst, ammonia generated from this urea is adsorbed at the NOX selective reducing catalyst, and the NOX contained in the exhaust gas is selectively reduced mainly by the adsorbed ammonia. An NOX sensor able to detect NOX and ammonia contained in the exhaust gas is arranged in the engine exhaust passage downstream of the NOX selective reducing catalyst. It is judged that the amount of adsorption of ammonia at the NOX selective reducing catalyst is saturated based on the detection value of the NOX sensor when the feed of fuel to the engine is stopped during the deceleration operation.

摘要翻译： 在内燃机中，在发动机排气通路中配置NO x选择还原催化剂。 在NO x选择还原催化剂中加入尿素，由该尿素生成的氨被NOX选择还原催化剂吸附，主要由吸附氨选择性地还原废气中的NOX。 在NO x选择还原催化剂下游的发动机排气通道中配置有能够检测废气中含有的NO x和NO x的NO X传感器。 在减速操作期间，当在发动机的燃料供给停止时，根据NOX传感器的检测值判断为NO x选择还原催化剂的氨的吸附量饱和。

公开(公告)号：US07165394B2

公开(公告)日：2007-01-23

申请号：US10843290

申请日：2004-05-12

申请人： Shunsuke Toshioka ,  Masaaki Kobayashi ,  Hisashi Ohki ,  Masaaki Yamaguchi ,  Kotaro Hayashi

发明人： Shunsuke Toshioka ,  Masaaki Kobayashi ,  Hisashi Ohki ,  Masaaki Yamaguchi ,  Kotaro Hayashi

IPC分类号： F01N3/00

CPC分类号： F01N3/085 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/0253 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/36 ,  F01N9/002 ,  F01N9/005 ,  F01N13/009 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2260/04 ,  F01N2260/14 ,  F01N2430/06 ,  F01N2430/08 ,  F01N2570/04 ,  F01N2570/14 ,  F02B29/04 ,  F02B37/00 ,  F02D41/025 ,  F02D41/028 ,  F02D41/0285 ,  F02D41/029 ,  F02D2200/0812 ,  F02D2200/0818 ,  Y02T10/47

摘要： An exhaust gas purification system for an internal combustion engine can quickly recover the exhaust gas purification ability of an exhaust gas purification device by increasing opportunities to release the SOx occluded in the exhaust gas purification device. In the exhaust gas purification system having the exhaust gas purification device having the property of occluding the SOx in the exhaust gas emitted from the internal combustion engine and collecting particulate matter contained in the exhaust gas, when the load of the internal combustion engine falls within a load range in which SOx poisoning recovery control can be executed, during the time when the particulate matter is oxidized and removed by collection ability regeneration control (S105), the collection ability regeneration control is interrupted and the SOx poisoning recovery control is executed (S106, S107).

公开(公告)号：US20070000237A1

公开(公告)日：2007-01-04

申请号：US11502521

申请日：2006-08-11

申请人： Shunsuke Toshioka ,  Masaaki Kobayashi ,  Hisashi Ohki ,  Masaaki Yamaguchi ,  Kotaro Hayashi

发明人： Shunsuke Toshioka ,  Masaaki Kobayashi ,  Hisashi Ohki ,  Masaaki Yamaguchi ,  Kotaro Hayashi

IPC分类号： F01N3/00 ,  F01N3/10

CPC分类号： F01N3/085 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/0253 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/36 ,  F01N9/002 ,  F01N9/005 ,  F01N13/009 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2260/04 ,  F01N2260/14 ,  F01N2430/06 ,  F01N2430/08 ,  F01N2570/04 ,  F01N2570/14 ,  F02B29/04 ,  F02B37/00 ,  F02D41/025 ,  F02D41/028 ,  F02D41/0285 ,  F02D41/029 ,  F02D2200/0812 ,  F02D2200/0818 ,  Y02T10/47

摘要： An exhaust gas purification system for an internal combustion engine can quickly recover the exhaust gas purification ability of an exhaust gas purification device by increasing opportunities to release the SOx occluded in the exhaust gas purification device. In the exhaust gas purification system having the exhaust gas purification device having the property of occluding the SOx in the exhaust gas emitted from the internal combustion engine and collecting particulate matter contained in the exhaust gas, when the load of the internal combustion engine falls within a load range in which SOx poisoning recovery control can be executed, during the time when the particulate matter is oxidized and removed by collection ability regeneration control (S105), the collection ability regeneration control is interrupted and the SOx poisoning recovery control is executed (S106, S107).

摘要翻译： 用于内燃机的废气净化系统可以通过增加排放气体净化装置中所含的SO x的释放机会来快速地回收废气净化装置的废气净化能力。 在具有排气净化装置的排气净化装置中，具有吸留从内燃机排出的废气中的SOx并收集废气中所含的颗粒物的特性，当内燃机的负荷处于 在通过收集能力再生控制使颗粒物被氧化和除去的时间期间，可以执行SOx中毒恢复控制的负荷范围（S105），收集能力再生控制被中断，执行SOx中毒恢复控制（S 106，S107）。

公开(公告)号：US09683471B2

公开(公告)日：2017-06-20

申请号：US12667767

申请日：2008-07-04

申请人： Masahiko Yabe ,  Haruyuki Yokota ,  Takaharu Shimizu ,  Hiroyuki Ninomiya ,  Shinya Sato ,  Takahiko Hayashi ,  Shunsuke Toshioka ,  Satoshi Watanabe ,  Tomihisa Oda ,  Yutaka Tanai

发明人： Masahiko Yabe ,  Haruyuki Yokota ,  Takaharu Shimizu ,  Hiroyuki Ninomiya ,  Shinya Sato ,  Takahiko Hayashi ,  Shunsuke Toshioka ,  Satoshi Watanabe ,  Tomihisa Oda ,  Yutaka Tanai

IPC分类号： F01N3/00 ,  F01N3/20 ,  F01N3/08 ,  F01N3/10 ,  F01N9/00 ,  F01N13/00 ,  B01D53/94

CPC分类号： F01N3/2066 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/944 ,  B01D2251/2067 ,  B01D2251/208 ,  B01D2258/012 ,  F01N3/0814 ,  F01N3/103 ,  F01N9/00 ,  F01N13/009 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2900/1404 ,  F01N2900/1602 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

摘要： An exhaust emission control device including a selective reduction catalyst; urea water as reducing agent being added in the pipe upstream of the reduction catalyst depurate NOx through reduction; an oxidation catalyst arranged in the pipe upstream of an added position of the urea water, the oxidation catalyst physically adsorbing NOx in the exhaust gas at a temperature lower than a lower active limit temperature of the reduction catalyst and discharging the adsorbed NOx at a temperature higher than a lower active limit temperature of the oxidation catalyst; and a fuel injection device for adding fuel into the exhaust gas upstream of the oxidation catalyst is disclosed. The start of the fuel addition by the fuel injection device is refrained until exhaust temperature on an inlet side of the reduction catalyst is increased to a preset temperature comparable with the lower active limit temperature of the oxidation catalyst.

公开(公告)号：US09238985B2

公开(公告)日：2016-01-19

申请号：US14409652

申请日：2012-06-20

申请人： Keishi Takada ,  Shunsuke Toshioka ,  Shigeki Nakayama ,  Ichiro Yamamoto ,  Junya Nakajima

发明人： Keishi Takada ,  Shunsuke Toshioka ,  Shigeki Nakayama ,  Ichiro Yamamoto ,  Junya Nakajima

IPC分类号： G01N21/00 ,  F01N3/20 ,  B01D53/94

CPC分类号： F01N3/208 ,  B01D53/9431 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2900/0416 ,  F01N2900/0601 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24 ,  Y02T10/47

摘要： To estimate an amount of reducing agent adsorbed to a selective reduction type NOx catalyst with a higher degree of precision, an amount of variation over a predetermined time in a reducing agent amount adsorbed to a selective reduction type NOx catalyst is calculated from an upper limit value of a reducing agent amount that is adsorbed to the selective reduction type NOx catalyst when the reducing agent is supplied continuously by a supply unit, which is calculated on the basis of a temperature of the selective reduction type NOx catalyst, and the reducing agent amount adsorbed to the selective reduction type NOx catalyst, whereupon a reducing agent amount adsorbed to the selective reduction type NOx catalyst following the elapse of the predetermined time is estimated by adding the variation amount to the reducing agent amount adsorbed to the selective reduction type NOx catalyst.

摘要翻译： 为了以更高的精度估计吸附到选择还原型NOx催化剂的还原剂的量，从吸附到选择还原型NOx催化剂的还原剂量中的预定时间内的变化量从上限值 当由选择还原型NOx催化剂的温度计算的供应单元连续供给还原剂时吸附到选择还原型NOx催化剂上的还原剂量和还原剂吸附量的还原剂量 涉及选择还原型NOx催化剂，通过将吸附在选择还原型NOx催化剂上的还原剂量的变化量加到预定时间后吸附到选择还原型NOx催化剂上的还原剂量来估计。