公开(公告)号：US09206724B2

公开(公告)日：2015-12-08

申请号：US13640231

申请日：2010-04-08

申请人： Shinya Hirota ,  Akira Mikami ,  Shunsuke Toshioka ,  Kazuhiro Itoh ,  Koichiro Fukuda

发明人： Shinya Hirota ,  Akira Mikami ,  Shunsuke Toshioka ,  Kazuhiro Itoh ,  Koichiro Fukuda

IPC分类号： F01N3/10 ,  F01N3/18 ,  B01D53/94 ,  G05D23/00 ,  F01N3/20 ,  F01N3/36 ,  F01N3/38 ,  F01N9/00 ,  F01N3/025

CPC分类号： F01N3/2033 ,  F01N3/0256 ,  F01N3/36 ,  F01N3/38 ,  F01N9/00 ,  F01N2240/14 ,  F01N2340/02 ,  F01N2900/1411 ,  F01N2900/1602 ,  Y02T10/26 ,  Y02T10/47

摘要： An exhaust gas purification system is equipped with a burner in an exhaust passage upstream of an exhaust gas purification apparatus and having a burner combustion chamber in which flame is produced. When the temperature of the exhaust gas purification apparatus is raised, the burner produces flame that extends from the interior of the burner combustion chamber to the interior of the exhaust passage when the flow rate of the exhaust gas is not higher than a predetermined flow rate, and the burner causes the size of the flame to be smaller than when it is determined that the flow rate of the exhaust gas is not higher than the predetermined flow rate or to produce flame only in the interior of the burner combustion chamber when it is determined that the flow rate of exhaust gas is higher than the predetermined flow rate.

摘要翻译： 废气净化系统在废气净化装置上游的排气通道中配备有燃烧器，并且具有在其中产生火焰的燃烧器燃烧室。 当废气净化装置的温度升高时，当排气的流量不高于预定的流量时，燃烧器产生从燃烧器燃烧室的内部延伸到排气通道的内部的火焰， 并且所述燃烧器导致所述火焰的尺寸小于当确定所述排气的流量不高于所述预定流量时，或者当确定所述燃烧器燃烧室的内部时仅产生火焰 废气的流量高于预定的流量。

公开(公告)号：US20130247543A1

公开(公告)日：2013-09-26

申请号：US13824856

申请日：2011-09-21

申请人： Shinya Hirota ,  Shunsuke Toshioka ,  Akira Mikami ,  Koichiro Fukuda ,  Sakutaro Hoshi ,  Takashi Endo ,  Ryoichi Hibino ,  Matsuei Ueda ,  Akihiko Asano ,  Takafumi Yamauchi ,  Akira Shichi ,  Makoto Koike ,  Masatoshi Maruyama ,  Masakazu Sakata

发明人： Shinya Hirota ,  Shunsuke Toshioka ,  Akira Mikami ,  Koichiro Fukuda ,  Sakutaro Hoshi ,  Takashi Endo ,  Ryoichi Hibino ,  Matsuei Ueda ,  Akihiko Asano ,  Takafumi Yamauchi ,  Akira Shichi ,  Makoto Koike ,  Masatoshi Maruyama ,  Masakazu Sakata

IPC分类号： F01N3/08

CPC分类号： F01N3/08 ,  F01N3/208 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0406 ,  F01N2900/1402 ,  F01N2900/1602 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24

摘要： An exhaust gas control apparatus includes a control device controlling a urea addition valve for adding urea from an upstream side of a NOx reduction catalyst. The control device obtains an ammonia adsorption amount distribution through the NOx reduction catalyst. When an ammonia adsorption amount in a predetermined part on a downstream side equals or exceeds a predetermined threshold, the control device controls the urea addition valve to stop the urea supply or reduce the amount thereof. The urea addition valve is controlled based on an adsorption amount distribution obtained from a model on which the catalyst is divided into cells such that an ammonia adsorption amount in a first cell positioned furthest upstream equals or exceeds a predetermined threshold close to a saturation adsorption amount and an ammonia adsorption amount in a second cell positioned downstream of the first cell reaches a predetermined target value smaller than the threshold.

摘要翻译： 排气控制装置包括控制尿素添加阀的控制装置，用于从NOx还原催化剂的上游侧添加尿素。 控制装置通过NOx还原催化剂获得氨吸附量分布。 当下游侧的规定部位的氨吸附量等于或超过预定阈值时，控制装置控制尿素添加阀停止尿素供给或减少其量。 基于从将催化剂分成细胞的模型获得的吸附量分布来控制尿素添加阀，使得位于最上游的第一单元中的氨吸附量等于或超过接近饱和吸附量的预定阈值， 位于第一单元下游的第二单元中的氨吸附量达到小于阈值的预定目标值。

公开(公告)号：US20130108529A1

公开(公告)日：2013-05-02

申请号：US13807133

申请日：2011-07-06

申请人： Shunsuke Toshioka ,  Shinya Hirota ,  Koichiro Fukuda ,  Takafumi Yamauchi

发明人： Shunsuke Toshioka ,  Shinya Hirota ,  Koichiro Fukuda ,  Takafumi Yamauchi

IPC分类号： B01D53/04 ,  G05D7/00

CPC分类号： B01D53/0454 ,  B01D53/90 ,  B01D53/9495 ,  B01D2251/2067 ,  B01D2257/404 ,  B01D2258/012 ,  F01N3/035 ,  F01N3/2066 ,  F01N3/208 ,  F01N9/00 ,  F01N2250/02 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2900/0408 ,  F01N2900/1402 ,  F01N2900/1621 ,  F01N2900/1622 ,  G05D7/00 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/47

摘要： Utilizing the finding that the state of adsorption of NH3 on a selective reduction type NOx catalyst includes a weakly adsorbed state in which the adsorbed NH3 is useful for a reduction reaction of NOx and a strongly adsorbed state in which the adsorbed NH3 is not useful for the reduction reaction of NOx unless the state of adsorption is changed into the weakly adsorbed state, the apparatus of the invention includes an actual weakly-adsorbed amount-calculation NH3 that is adsorbed on the selective reduction type NOx catalyst in the weakly adsorbed state, and a dispensation control portion that performs a dispensation control of the reductant dispensed by a reductant-dispensation portion, according to the actual weakly adsorbed amount calculated by the actual weakly adsorbed amount calculation portion.

摘要翻译： 利用NH 3在选择性还原型NOx催化剂上的吸附状态包括弱吸附状态，其中吸附的NH 3可用于NOx的还原反应和强吸附状态，其中吸附的NH 3对于 除非吸附状态变为弱吸附状态，否则NOx的还原反应，本发明的装置包括吸附在弱吸附状态的选择还原型NOx催化剂上的实际弱吸附量计算NH 3，以及 分配控制部，其根据实际的弱吸附量计算部计算出的实际弱吸附量，对由还原剂分配部分分配的还原剂进行分配控制。

公开(公告)号：US20130052107A1

公开(公告)日：2013-02-28

申请号：US13395766

申请日：2010-05-14

申请人： Koichiro Fukuda ,  Shinya Hirota ,  Shunsuke Toshioka ,  Sakutaro Hoshi

发明人： Koichiro Fukuda ,  Shinya Hirota ,  Shunsuke Toshioka ,  Sakutaro Hoshi

IPC分类号： F01N3/20 ,  B01D53/94

CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9431 ,  B01D2251/2067 ,  B01D2255/30 ,  B01D2255/50 ,  B01D2255/911 ,  F01N2560/026 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0408 ,  F01N2900/1402 ,  F01N2900/1622 ,  Y02T10/24

摘要： A technique that, in an exhaust gas purification apparatus of an internal combustion engine, can avoid a decrease in a NOx purification rate by adding a reducing agent as continuously as possible, while avoiding NH3 from passing through a selective reduction type NOx catalyst to a downstream side thereof. The selective reduction type NOx catalyst has an active spot which purifies NOx by the use of NH3, and an adsorption site which adsorbs NH3, wherein a vicinity site, which is located in the vicinity of the active spot, and a distant site, which is located distant from the active spot, exist in the adsorption site. The addition of the reducing agent from the reducing agent addition part is controlled based on the desorption rate of NH3 in the vicinity site so as to continue to cause the NH3 adsorbed to the vicinity site to exist.

摘要翻译： 一种在内燃机的排气净化装置中，通过尽可能连续地添加还原剂，能够避免NH 3通过选择还原型NOx催化剂到下游的NOx排出净化装置的技术 侧。 选择还原型NOx催化剂具有通过使用NH 3净化NOx的活性点和吸附NH 3的吸附位置，其中位于活性点附近的附近位置和远离位置是 位于远离活性斑点，存在于吸附位点。 还原剂从还原剂添加部分的添加基于邻近位置处的NH 3的解吸速率进行控制，从而继续存在吸附在附近的NH 3。

公开(公告)号：US08333064B2

公开(公告)日：2012-12-18

申请号：US12674111

申请日：2008-08-06

申请人： Yuki Bisaiji ,  Koichiro Fukuda ,  Mikio Inoue ,  Satoru Nitta ,  Kiyohiko Nagae

发明人： Yuki Bisaiji ,  Koichiro Fukuda ,  Mikio Inoue ,  Satoru Nitta ,  Kiyohiko Nagae

IPC分类号： F01N3/00

CPC分类号： B01F5/0473 ,  B01F3/04049 ,  B01F5/0268 ,  F01N3/0253 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/2066 ,  F01N2240/20 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/102 ,  Y02T10/24

摘要： In an exhaust gas purification apparatus for an internal combustion engine, reducing agent is diffused and the exhaust resistance is made small. The apparatus includes a reducing agent addition valve that injects reducing agent, a reducing agent addition valve mount portion that has a space in which the reducing agent addition valve injects the reducing agent outside a stream of exhaust gas flowing in an exhaust passage of an internal combustion engine and on which the reducing agent addition valve is mounted, and an impingement portion that is provided in the reducing agent addition valve mount portion and on which the reducing agent injected through the reducing agent addition valve impinges, wherein the direction of injection of the reducing agent from the reducing agent addition valve is oriented toward the impingement portion, and toward downstream of the reducing agent addition valve with respect to the exhaust gas flow.

摘要翻译： 在内燃机的废气净化装置中，还原剂扩散，排气阻力变小。 该装置包括注入还原剂的还原剂添加阀，还原剂添加阀安装部分，其具有空间，还原剂添加阀将还原剂注入到在内燃机的排气通道中流动的排气流之外 发动机，并且安装有还原剂添加阀的冲击部分和设置在还原剂添加阀安装部分中并且通过还原剂添加阀喷射的还原剂撞击的冲击部分，其中， 来自还原剂添加阀的试剂朝向冲击部，朝向排气流的还原剂添加阀的下游。

公开(公告)号：US20090071130A1

公开(公告)日：2009-03-19

申请号：US12226573

申请日：2007-05-24

申请人： Koichiro Fukuda ,  Taro Aoyama

发明人： Koichiro Fukuda ,  Taro Aoyama

IPC分类号： F01N9/00

CPC分类号： F01N3/2033 ,  B01D53/9445 ,  B01D53/9495 ,  B01D2251/208 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N9/00 ,  F01N2610/03 ,  Y02T10/22 ,  Y02T10/26 ,  Y02T10/47

摘要： An exhaust emission purifier able to suppress overheats of an exhaust emission purifying catalyst and execute fuel addition promptly when fuel addition to the exhaust emission purifying catalyst is requested is provided. In the exhaust emission purifier of an internal combustion engine including exhaust emission purifying catalyst of purifying exhaust emission of an internal combustion engine and a fuel addition valve of adding fuel from upstream of the exhaust emission purifying catalyst, cycles are repeated in order that the exhaust emission purifying catalyst is to be regulated at a target temperature, the cycle being a combination of an addition period during which fuel is added from the fuel addition valve and a halt period during which fuel addition is halted, and the fuel addition valve is manipulated such that the halt period is disposed so as to sandwich the addition period in the cycle. The length of the pre-addition halt period disposed before the addition period is varied in accordance with the temperature of the exhaust emission purifying catalyst at the start point of the cycle.

摘要翻译： 提供了能够抑制排气净化催化剂过热的排气净化器，并且在要求排出排气净化催化剂的添加量时，迅速地进行燃料添加。 在包括净化内燃机废气排放的排气净化催化剂的内燃机和从排气净化催化剂的上游添加燃料的燃料添加阀的内燃机的废气净化器中，重复循环，以使废气排放 净化催化剂被调节到目标温度，该循环是从燃料添加阀添加燃料的添加周期和燃料添加停止的停止期间的组合，并且燃料添加阀的操作使得 停止时间被设置为在循环中夹着添加周期。 在添加周期之前设置的预加料停止时间的长度根据循环起点处的排气净化催化剂的温度而变化。

公开(公告)号：US06932069B2

公开(公告)日：2005-08-23

申请号：US10956113

申请日：2004-10-04

申请人： Kingo Suyama ,  Koichiro Fukuda

发明人： Kingo Suyama ,  Koichiro Fukuda

IPC分类号： F02D45/00 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  F01N3/36 ,  F01N9/00 ,  F02D41/04 ,  F02D41/14 ,  F02D41/22 ,  F02D41/00

CPC分类号： F01N3/0885 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/2033 ,  F01N3/36 ,  F01N9/005 ,  F01N2570/04 ,  F01N2570/14 ,  F01N2610/03 ,  F01N2610/1493 ,  F01N2900/1602 ,  F02D41/1454 ,  F02D2200/0802 ,  Y02T10/47

摘要： An air fuel ratio control apparatus for an internal combustion engine can improve learning accuracy in the air fuel ratio control even if the air fuel ratio of a mixture detected by an air fuel ratio detection device shifts from an actual air fuel ratio thereof. The apparatus controls the air fuel ratio of an exhaust gas flowing into an exhaust gas purification device based on an air fuel ratio feedback value and an air fuel ratio learning value. A temperature detection device detects the temperature of the exhaust gas purification device. A determination device determines, based on a difference between a detection value of the temperature detection device and a target temperature, that the air fuel ratio detection device shifts to a rich or lean side. The update of the air fuel ratio learning value is inhibited when the air fuel ratio detection device shifts to a rich or lean side.

公开(公告)号：US09221017B2

公开(公告)日：2015-12-29

申请号：US14110895

申请日：2011-07-04

申请人： Takanori Nakano ,  Haruyuki Katayama ,  Shinya Hirota ,  Shunsuke Toshioka ,  Koichiro Fukuda

发明人： Takanori Nakano ,  Haruyuki Katayama ,  Shinya Hirota ,  Shunsuke Toshioka ,  Koichiro Fukuda

IPC分类号： B01D50/00 ,  B01D53/94 ,  F01N3/10 ,  F01N3/20 ,  F01N3/035 ,  F01N13/00

CPC分类号： B01D53/9459 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2251/2067 ,  B01D2255/904 ,  F01N3/035 ,  F01N3/108 ,  F01N3/2066 ,  F01N13/008 ,  F01N13/009 ,  F01N13/0093 ,  F01N2560/05 ,  F01N2610/02 ,  Y02T10/24

摘要： The purpose of the present invention is to suppress degradation of a PM sensor and a decrease in detection accuracy of the amount of PM in a configuration in which a urea addition unit and a selective reduction-type NOx catalyst (NOx catalyst) are provided downstream of a particulate filter (filter) in an internal combustion engine exhaust passage, the PM sensor being disposed downstream of the filter. According to the present invention, in an exhaust passage (2) of an internal combustion engine (1), a first NOx catalyst (4) and a second NOx catalyst (5) are disposed downstream of a filter (3) successively from the upstream side along the flow of exhaust. A urea addition unit (6) is disposed between the filter (3) and the first NOx catalyst (4). A PM sensor (7) is disposed between the first NOx catalyst (4) and the second NOx catalyst (5).

摘要翻译： 下游的尿素添加单元和选择还原型NOx催化剂（NOx催化剂）的配置中，本发明的目的是抑制PM传感器的劣化和PM的量的检测精度的降低 内燃机排气通道中的微粒过滤器（过滤器），PM传感器设置在过滤器的下游。 根据本发明，在内燃机（1）的排气通路（2）中，第一NOx催化剂（4）和第二NOx催化剂（5）从上游依次配置在过滤器（3）的下游 沿着排气流。 尿素添加单元（6）设置在过滤器（3）和第一NOx催化剂（4）之间。 PM传感器（7）设置在第一NOx催化剂（4）和第二NOx催化剂（5）之间。

公开(公告)号：US20150096286A1

公开(公告)日：2015-04-09

申请号：US14360809

申请日：2012-11-21

申请人： Shigeki NAKAYAMA ,  Koichiro FUKUDA ,  Shunsuke TOSHIOKA ,  KABUSHIKI KAISHA TOYOTA JIDOSHIKKI

发明人： Shunsuke Toshioka ,  Koichiro Fukuda ,  Shigeki Nakayama ,  Noriyoshi Takahashi ,  Atsushi Kidokoro ,  Sakutaro Hoshi ,  Satoshi Watanabe

IPC分类号： F01N3/20

CPC分类号： F01N3/206 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/2067 ,  F01N3/108 ,  F01N3/2066 ,  F01N3/208 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/011 ,  F01N13/107 ,  F01N2340/02 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2570/14 ,  F01N2610/00 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/1404 ,  F01N2900/1602 ,  F02B37/001 ,  F02B37/007 ,  Y02T10/144 ,  Y02T10/24

摘要： An exhaust gas purification device for an internal combustion engine purifies exhaust gas in a first exhaust path and a second exhaust path. The device includes a confluent path. The confluent path extends from a confluent section of the first exhaust path and the second exhaust path. A first auxiliary NOx catalyst is provided in the first exhaust path. A second auxiliary NOx catalyst is provided in the second exhaust path. A main NOx catalyst is provided in the confluent path. A first addition section adds an ammonia source in a first addition amount to a section upstream of the first auxiliary NOx catalyst to supply urea water to the first auxiliary NOx catalyst. A second addition section adds an ammonia source in a second addition amount to a section upstream of the second auxiliary NOx catalyst to supply urea water to the second auxiliary NOx catalyst.

摘要翻译： 用于内燃机的废气净化装置净化第一排气通路和第二排气路径中的废气。 该装置包括汇合路径。 汇合路径从第一排气通道和第二排气路径的汇合部分延伸。 第一辅助NOx催化剂设置在第一排气路径中。 第二辅助NOx催化剂设置在第二排气路径中。 在合流路径上设置有主要的NOx催化剂。 第一添加部将第一添加量的氨源添加到第一辅助NOx催化剂上游的部分，以向第一辅助NOx催化剂供给尿素水。 第二添加部分将第二添加量的氨源添加到第二辅助NOx催化剂上游的部分，以将尿素水供应到第二辅助NOx催化剂。

公开(公告)号：US08695326B2

公开(公告)日：2014-04-15

申请号：US13366085

申请日：2012-02-03

申请人： Koichiro Fukuda ,  Taro Aoyama

发明人： Koichiro Fukuda ,  Taro Aoyama

IPC分类号： F01N3/00

CPC分类号： F01N3/2033 ,  B01D53/9445 ,  B01D53/9495 ,  B01D2251/208 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N9/00 ,  F01N2610/03 ,  Y02T10/22 ,  Y02T10/26 ,  Y02T10/47

摘要： An exhaust emission purifier is provided and able to suppress overheating of an exhaust emission purifying catalyst and execute fuel addition promptly when fuel addition to the exhaust emission purifying catalyst is requested. In the exhaust emission purifier of an internal combustion engine, exhaust purifying cycles are repeated in order that the exhaust emission purifying catalyst is to be regulated at a target temperature, the cycle being a combination of an addition period during which fuel is added from the fuel addition valve and a halt period during which fuel addition is halted, and the fuel addition valve is manipulated such that the halt period is disposed so as to sandwich the addition period in the cycle.

摘要翻译： 提供了一种废气净化器，能够抑制排气净化催化剂的过热，并且当要求向排气净化催化剂添加的燃料时，及时进行燃料添加。 在内燃机的排气净化器中，重复排气净化循环，以使排气净化催化剂被调节到目标温度，该循环是从燃料添加燃料的添加期间的组合 加料阀和停止燃料添加的停止期间，并且操作燃料添加阀，使得停止时间段被设置成在循环中夹着添加周期。