公开(公告)号：US20060107658A1

公开(公告)日：2006-05-25

申请号：US10531329

申请日：2003-10-16

申请人： Satoshi Hiranuma ,  Ritsuko Shinozaki ,  Yoshinori Takahashi ,  Yoshinaka Takeda ,  Reiko Doumeki ,  Shinichi Saito ,  Toru Kawatani ,  Takeshi Hashizume ,  Kenji Kawai

发明人： Satoshi Hiranuma ,  Ritsuko Shinozaki ,  Yoshinori Takahashi ,  Yoshinaka Takeda ,  Reiko Doumeki ,  Shinichi Saito ,  Toru Kawatani ,  Takeshi Hashizume ,  Kenji Kawai

IPC分类号： F01N3/00

CPC分类号： F01N3/2853 ,  F01N3/0231 ,  F01N3/035 ,  F01N13/0097 ,  F02D41/1467 ,  F02D2200/0812

摘要： An exhaust gas purifying system reliably detects an amount of accumulated particulates, lengthens forced regeneration intervals, and improves fuel efficiency. The exhaust gas purifying system comprises: a particulate filter 22 disposed in an exhaust system of an internal combustion engine 2 and collecting particulates from exhaust gas, and an NO2 generating unit 21 upstream of or in the particulate filter 22; a discharged particulate amount calculating unit A1 calculates an amount Me of discharged particulates on the basis of an excess air ratio λ; a burnt particulate amount calculating unit A2 calculates an amount Mb of burnt particulates on the basis of the temperature of exhaust gas in front of the particulate filter or the temperature of the particulate filter; and a particulate accumulation amount calculating unit calculates an amount Ma of accumulated particulates on the basis of the amount Me of discharged particulates or the amount Mb of burnt particulates.

摘要翻译： 排气净化系统可靠地检测累积的微粒量，延长强制再生间隔，提高燃料效率。 废气净化系统包括：设置在内燃机2的排气系统中并从废气中收集颗粒的微粒过滤器22和在微粒过滤器上游或在微粒过滤器上游的NO 2发生单元21 22; 排出微粒量计算单元A 1基于过量空气比λ计算排出的微粒的量Me; 烧成颗粒量计算单元A 2基于微粒过滤器前面的排气温度或颗粒过滤器的温度来计算燃烧微粒的量Mb; 颗粒蓄积量计算单元基于排出的微粒的量Me或燃烧的微粒的量Mb来计算积累的微粒的量Ma。

公开(公告)号：US07497078B2

公开(公告)日：2009-03-03

申请号：US10531329

申请日：2003-10-16

申请人： Satoshi Hiranuma ,  Ritsuko Shinozaki ,  Yoshinori Takahashi ,  Yoshinaka Takeda ,  Reiko Doumeki ,  Shinichi Saito ,  Toru Kawatani ,  Takeshi Hashizume ,  Kenji Kawai

发明人： Satoshi Hiranuma ,  Ritsuko Shinozaki ,  Yoshinori Takahashi ,  Yoshinaka Takeda ,  Reiko Doumeki ,  Shinichi Saito ,  Toru Kawatani ,  Takeshi Hashizume ,  Kenji Kawai

IPC分类号： F01N3/00

CPC分类号： F01N3/2853 ,  F01N3/0231 ,  F01N3/035 ,  F01N13/0097 ,  F02D41/1467 ,  F02D2200/0812

摘要： An exhaust gas purifying system reliably detects an amount of accumulated particulates, lengthens forced regeneration intervals, and improves fuel efficiency. The exhaust gas purifying system comprises: a particulate filter 22 disposed in an exhaust system of an internal combustion engine 2 and collecting particulates from exhaust gas, and an NO2 generating unit 21 upstream of or in the particulate filter 22; a discharged particulate amount calculating unit A1 calculates an amount Me of discharged particulates on the basis of an excess air ratio λ; a burnt particulate amount calculating unit A2 calculates an amount Mb of burnt particulates on the basis of the temperature of exhaust gas in front of the particulate filter or the temperature of the particulate filter; and a particulate accumulation amount calculating unit calculates an amount Ma of accumulated particulates on the basis of the amount Me of discharged particulates or the amount Mb of burnt particulates.

摘要翻译： 排气净化系统可靠地检测累积的微粒量，延长强制再生间隔，提高燃料效率。 废气净化系统包括：设置在内燃机2的排气系统中并从废气中收集微粒的微粒过滤器22和微粒过滤器22上游或其中的NO 2产生单元21; 排出微粒量计算单元A1基于过量空气比λ计算排出的微粒的量Me; 烧成颗粒量计算单元A2基于颗粒过滤器前面的废气温度或颗粒过滤器的温度来计算燃烧微粒的量Mb; 颗粒蓄积量计算单元基于排出的微粒的量Me或燃烧的微粒的量Mb来计算积累的微粒的量Ma。

公开(公告)号：US06755014B2

公开(公告)日：2004-06-29

申请号：US10329705

申请日：2002-12-27

申请人： Kenji Kawai ,  Yoshinori Takahashi ,  Shinichi Saito ,  Toru Kawatani ,  Yoshinaka Takeda ,  Ristuko Shinozaki ,  Reiko Doumeki ,  Takeshi Hashizume ,  Satoshi Hiranuma

发明人： Kenji Kawai ,  Yoshinori Takahashi ,  Shinichi Saito ,  Toru Kawatani ,  Yoshinaka Takeda ,  Ristuko Shinozaki ,  Reiko Doumeki ,  Takeshi Hashizume ,  Satoshi Hiranuma

IPC分类号： F01N300

CPC分类号： F02D41/1461 ,  B01D53/86 ,  B01D53/9409 ,  B01D53/9495 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2257/404 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/208 ,  F01N13/008 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2570/14 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2900/1621 ,  F01N2900/1622 ,  Y02A50/2344 ,  Y02T10/24

摘要： A NOx catalyst for selectively reducing NOx in exhaust gas by adsorbing ammonia is provided at an exhaust system of an engine, ammonia or urea water is supplied to the NOx catalyst by reducing agent supplying means, a consumption amount of ammonia adsorbed to the NOx catalyst is derived by consumption amount deriving means based on an exhaust amount of NOx exhausted from the engine detected or estimated by NOx exhaust amount deriving means and an actual NOx cleaning rate by the NOx catalyst derived by actual NOx cleaning rate deriving means, an actual adsorption amount of ammonia adsorbed to the NOx catalyst is derived in accordance with an addition amount of ammonia and the consumption amount of ammonia by adsorption amount deriving means and the reducing agent supplying means is controlled by controlling means in accordance with the actual adsorption amount.

摘要翻译： 在发动机的排气系统中设置用于通过吸附氨选择性还原排气中的NOx的NOx催化剂，还原剂供给装置向NOx催化剂供给氨或尿素水，吸附到NOx催化剂上的氨的消耗量为 基于由NOx排出量导出单元检测出的或者由NOx排出量导出单元检测到的发动机排出的NOx的排出量和由实际的NOx净化率导出单元导出的NOx催化剂的实际的NOx净化率的消耗量导出单元导出的实际吸附量 根据氨的添加量导出吸附到NOx催化剂的氨，并且通过控制装置根据实际吸附量控制吸附量导出装置和还原剂供给装置的氨的消耗量。

公开(公告)号：US07908843B2

公开(公告)日：2011-03-22

申请号：US11566655

申请日：2006-12-04

申请人： Reiko Doumeki ,  Yoshinaka Takeda ,  Satoshi Hiranuma ,  Ritsuko Shinozaki ,  Shinichi Saitou ,  Yasuko Suzuki

发明人： Reiko Doumeki ,  Yoshinaka Takeda ,  Satoshi Hiranuma ,  Ritsuko Shinozaki ,  Shinichi Saitou ,  Yasuko Suzuki

IPC分类号： F01N3/00

CPC分类号： B01D53/9431 ,  B01D53/9495 ,  B01D2251/2062 ,  F01N3/0231 ,  F01N3/208 ,  F01N13/009 ,  F01N13/0093 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/146 ,  F01N2900/08 ,  Y02T10/24

摘要： An exhaust gas purification device comprises a NOx catalyst for purifying NOx contained in exhaust gas by using ammonia as a reducing agent, an ammonia supply device for supplying ammonia to the NOx catalyst, a catalyst temperature sensor for detecting the internal temperature of the NOx catalyst, and a control unit that stops the ammonia supply from the ammonia supply device when the stop condition is satisfied that the internal temperature of the NOx catalyst becomes equal to or higher than first prescribed temperature in the process where ammonia is supplied from the ammonia supply device to the NOx catalyst.

摘要翻译： 废气净化装置包括：通过使用氨作为还原剂来净化废气中的NOx的NOx催化剂;向NOx催化剂供给氨的氨供给装置;检测NOx催化剂的内部温度的催化剂温度传感器; 以及控制单元，当在从氨供给装置供给氨的处理中，当停止条件满足NOx催化剂的内部温度为第一规定温度以上时停止从氨供给装置供给的氨的控制部， NOx催化剂。

公开(公告)号：US07104049B2

公开(公告)日：2006-09-12

申请号：US10808209

申请日：2004-03-24

申请人： Satoshi Hiranuma ,  Yoshinaka Takeda ,  Toru Kawatani ,  Reiko Doumeki

发明人： Satoshi Hiranuma ,  Yoshinaka Takeda ,  Toru Kawatani ,  Reiko Doumeki

IPC分类号： F01N3/00

CPC分类号： B01D53/96 ,  F01N3/0231 ,  F01N3/035 ,  F01N9/002 ,  F01N13/0097 ,  F01N2610/03 ,  F02B29/0425 ,  F02B37/00 ,  F02B2275/14 ,  F02D41/0007 ,  F02D41/029 ,  F02D41/402 ,  Y02T10/123 ,  Y02T10/144 ,  Y02T10/44 ,  Y02T10/47

摘要： An exhaust gas purification system includes an oxygen mass flow rate detecting unit for detecting or calculating a mass flow rate of oxygen fed to a filter and a regeneration end determining unit for determining a regeneration end of the filter in accordance with information provided from the oxygen mass flow rate detecting-unit and upon arrival of an integrated value of the oxygen mass flow rate at a predetermined value during regeneration of the filter.

摘要翻译： 废气净化系统包括：氧质量流量检测单元，用于检测或计算供给到过滤器的氧气的质量流量;再生结束确定单元，用于根据从氧气质量提供的信息确定过滤器的再生端 流量检测单元，并且在过滤器的再生期间到达氧质量流量的积分值为预定值时。

公开(公告)号：US07013638B2

公开(公告)日：2006-03-21

申请号：US10808208

申请日：2004-03-24

申请人： Satoshi Hiranuma ,  Yoshinaka Takeda ,  Toru Kawatani ,  Reiko Doumeki

发明人： Satoshi Hiranuma ,  Yoshinaka Takeda ,  Toru Kawatani ,  Reiko Doumeki

IPC分类号： F01N3/00

CPC分类号： F02D41/405 ,  F01N13/0097 ,  F01N2430/085 ,  F02B29/0406 ,  F02B37/00 ,  F02D41/029 ,  F02D41/402 ,  F02D2200/0802 ,  F02D2200/0812 ,  F02M26/05 ,  Y02T10/44

摘要： In regenerating a filter there are performed a first additional fuel injection involving additional injection of fuel into a cylinder after a main fuel injection in an engine to raise the temperature of an oxidation catalyst and a second additional fuel injection involving fuel injection after the first additional fuel injection to supply the oxidation catalyst with the fuel, a second additional fuel injection quantity is set in accordance with an engine speed and an engine load and is changed in accordance with an outlet temperature of the oxidation catalyst.

摘要翻译： 在再生过滤器中，执行第一附加燃料喷射，其涉及在发动机中的主燃料喷射之后将燃料附加到气缸中以提高氧化催化剂的温度和在第一附加燃料之后涉及燃料喷射的第二附加燃料喷射 喷射以向燃料供应氧化催化剂，根据发动机转速和发动机负荷设定第二附加燃料喷射量，并且根据氧化催化剂的出口温度而改变。

公开(公告)号：US20050266988A1

公开(公告)日：2005-12-01

申请号：US11071893

申请日：2005-03-03

申请人： Reiko Doumeki ,  Yoshinaka Takeda ,  Satoshi Hiranuma

发明人： Reiko Doumeki ,  Yoshinaka Takeda ,  Satoshi Hiranuma

IPC分类号： F01N3/02 ,  B01D46/42 ,  B01D53/94 ,  B01J23/44 ,  F01N3/035 ,  F01N3/10 ,  F01N3/24 ,  F01N3/28 ,  F01N3/36 ,  F02D41/04 ,  B01J23/40

CPC分类号： F01N3/035 ,  B01D53/945 ,  F01N2250/02 ,  Y02T10/22

摘要： An oxidation catalyst apparatus and a particulate collecting filter are provided sequentially from an upstream side in an exhaust gas passage of a diesel engine. A ratio of the weight of Pd to a sum of the weights of Pt and Pd carried on the oxidation catalyst apparatus is satisfactory with the following inequality: 0.05≦Pd/(Pt+Pd)≦0.75. When the rise of the temperature of the particulate collecting filter is needed, fuel is supplied into the oxidation catalyst apparatus.

摘要翻译： 从柴油发动机的排气通道的上游侧依次设置氧化催化剂装置和集尘过滤器。 Pd的重量与氧化催化剂装置上携带的Pt和Pd的重量之和的比例满足以下不等式：0.05 <= Pd /（Pt + Pd）<= 0.75。 当需要微粒收集过滤器的温度升高时，向氧化催化剂装置供给燃料。