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公开(公告)号：US08409536B2
公开(公告)日：2013-04-02
申请号：US13395766
申请日：2010-05-14
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。
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2.发明授权Exhaust gas control apparatus and control method for exhaust gas control apparatus 有权废气控制装置及排气控制装置的控制方法公开(公告)号：US09297287B2
公开(公告)日：2016-03-29
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
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。
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3.发明申请EXHAUST GAS CONTROL APPARATUS AND CONTROL METHOD FOR EXHAUST GAS CONTROL APPARATUS 有权用于排气控制装置的排气控制装置和控制方法公开(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。
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公开(公告)号：US20130052107A1
公开(公告)日：2013-02-28
申请号：US13395766
申请日：2010-05-14
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。
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公开(公告)号：US20140112833A1
公开(公告)日：2014-04-24
申请号：US14110895
申请日：2011-07-04
IPC分类号： B01D53/94
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 corn 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 fitter (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 在内部玉米发动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）从上游依次配置在钳具（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。
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公开(公告)号：US09221017B2
公开(公告)日：2015-12-29
申请号：US14110895
申请日：2011-07-04
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。
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公开(公告)号：US20130058832A1
公开(公告)日：2013-03-07
申请号：US13640231
申请日：2010-04-08
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。
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公开(公告)号：US09206724B2
公开(公告)日：2015-12-08
申请号：US13640231
申请日：2010-04-08
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。
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9.发明申请EXHAUST GAS CONTROL APPARATUS AND REDUCTANT DISPENSING METHOD FOR INTERNAL COMBUSTION ENGINE 有权用于内燃机的排气控制装置和减排分配方法公开(公告)号：US20130108529A1
公开(公告)日：2013-05-02
申请号：US13807133
申请日：2011-07-06
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。
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公开(公告)号：US08783023B2
公开(公告)日：2014-07-22
申请号：US13696972
申请日：2010-05-12
CPC分类号： F01N3/208 , B01D53/90 , B01D53/9409 , B01D53/9495 , B01D2251/2062 , F01N3/2033 , F01N13/009 , F01N2560/06 , F01N2610/02 , F01N2610/03 , F01N2900/0416 , F01N2900/1602 , Y02T10/24 , Y02T10/26
摘要： An object of the present invention is to increase the flexibility in the layout of an exhaust gas purification system for an internal combustion engine including selective catalytic reduction catalyst provided in an exhaust passage of the internal combustion engine and an addition device for supplying reducing agent derived from ammonia to the selective catalytic reduction catalyst, without a deterioration of the performance in reducing nitrogen oxides. To achieve the object, the exhaust gas purification system for an internal combustion engine according to the present invention is configured to supply hydrocarbon at the same time when reducing agent derived from ammonia is supplied to the selective catalytic reduction catalyst, thereby producing reducing agent that is hard to be oxidized by a precious metal catalyst.
摘要翻译： 本发明的目的在于提高内燃机的排气净化系统的布置灵活性，所述内燃机包括设置在内燃机的排气通路中的选择性催化还原催化剂，以及用于供给源自 氨至选择性催化还原催化剂，而不会降低还原氮氧化物的性能。 为了达到上述目的，本发明的内燃机用废气净化装置，在向选择性催化还原催化剂供给来自氨的还原剂的同时，同时供给烃，由此生成还原剂， 难以被贵金属催化剂氧化。
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