公开(公告)号：US20110154808A1

公开(公告)日：2011-06-30

申请号：US13041672

申请日：2011-03-07

申请人： Kiminobu HIRATA ,  Nobuhiko MASAKI ,  Masakazu YANO

发明人： Kiminobu HIRATA ,  Nobuhiko MASAKI ,  Masakazu YANO

IPC分类号： F01N3/035

CPC分类号： F01N3/0821 ,  B01D53/9431 ,  B01D53/944 ,  B01D2251/2067 ,  B01D2251/208 ,  B01D2251/21 ,  F01N3/023 ,  F01N3/029 ,  F01N3/2066 ,  F01N13/0097 ,  F01N2510/02 ,  F01N2610/02 ,  Y02T10/24

摘要： A DPF disposed in an exhaust passage of a diesel engine is coated with a selective reducing catalyst, for selectively reducing and purifying NOx by using a reducing agent, and a thin film, having fine pores of size for allowing passage of the NOx and preventing passage of PM, in this order. In regeneration treatment of a DPF, the thin film prevents direct transmission of combustion heat of the PM to the selective reducing catalyst and suppresses a temperature rise of the selective reducing catalyst to thereby suppress deterioration of an active component.

摘要翻译： 设置在柴油发动机的排气通道中的DPF涂覆有选择性还原催化剂，用于通过使用还原剂选择性还原和净化NOx，以及具有细孔尺寸以允许NOx通过并防止通过的薄膜 的PM，按顺序。 在DPF的再生处理中，薄膜防止了PM的燃烧热直接传递到选择还原催化剂，抑制了选择还原催化剂的升温，从而抑制了有效成分的劣化。

公开(公告)号：US20110239633A1

公开(公告)日：2011-10-06

申请号：US13162758

申请日：2011-06-17

申请人： Nobuhiko MASAKI ,  Kiminobu HIRATA ,  Masakazu YANO

发明人： Nobuhiko MASAKI ,  Kiminobu HIRATA ,  Masakazu YANO

IPC分类号： F01N3/035

CPC分类号： F01N3/2066 ,  F01N3/0222 ,  F01N3/035 ,  F01N3/0828 ,  F01N3/2073 ,  F01N13/0097 ,  F01N2240/40 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2510/0684 ,  F01N2570/18 ,  F01N2610/02 ,  Y02T10/24

摘要： The present invention provides an exhaust emission purifying apparatus. In the exhaust emission purifying apparatus, while an ammonia adsorbent is coated on a predetermined length portion on the exhaust inflow side of a carrier of a catalytic converter which reduces and purifies NOx in exhaust gas, a NOx reduction catalyst is coated on the remaining portion on the exhaust outflow side of the carrier of the catalytic converter. On the other hand, a first layer containing the ammonia adsorbent and the NOx reduction catalyst in a mixed state and a second layer containing a hydrolysis catalyst are coated in that order on a carrier surface of the catalytic converter. In a transition of an engine operation state, NOx is reduced and purified with the use of ammonia adsorbed to the ammonia adsorbent.

摘要翻译： 本发明提供一种排气净化装置。 在排气净化装置中，在催化转化器的载体的排气流入侧的规定长度部分涂布氨吸附剂的同时，将催化转化器的排气净化后的NOx还原催化剂涂布在余量部分上 催化转化器的载体的排气流出侧。 另一方面，含有氨吸附剂和NOx还原催化剂为混合状态的第一层和含有水解催化剂的第二层依次涂覆在催化转化器的载体表面上。 在发动机运转状态的转变中，通过使用吸附在氨吸附剂上的氨来还原和净化NOx。

公开(公告)号：US20090158709A1

公开(公告)日：2009-06-25

申请号：US12390164

申请日：2009-02-20

申请人： Kouji MASUDA ,  Kiminobu HIRATA ,  Nobuhiko MASAKI

发明人： Kouji MASUDA ,  Kiminobu HIRATA ,  Nobuhiko MASAKI

IPC分类号： F01N9/00

CPC分类号： F01N3/208 ,  F01N3/103 ,  F01N3/2013 ,  F01N3/2066 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N2470/18 ,  F01N2550/05 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2900/08 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

摘要： In order to suppress deposition of constituent of a reducing agent (dissolved matter) in an exhaust passage of an engine enhancing an elimination rate of NOx even when temperature of an exhaust emission from the engine is low, an exhaust emission purifying apparatus is provided with an electro-generative-heat carrier provided on an upstream side of an injection nozzle that supplies the reducing agent into the exhaust emission on upstream side of a reduction catalyst in an exhaust pipe, the exhaust emission being heated to a temperature equal to or higher than a melting point of the dissolved matter whereby deposition of the dissolved matter on an inner wall surface of the exhaust pipe is suppressed to effectively use the supplied reducing agent for catalytic reduction reaction, even when the exhaust emission temperature is lower than the melting point of the dissolved matter of the reducing agent.

摘要翻译： 为了抑制即使在来自发动机的排气的温度低的情况下也能够提高NOx的消除率的发动机的排气通路中的还原剂（溶解物质）的成分的沉积，所以排气净化装置具备 设置在喷射喷嘴的上游侧的电生热载体，其将还原剂供给到排气管中的还原催化剂的上游侧的废气排放中，将排气排放加热至等于或高于 溶解物的熔点，由此抑制溶解物在排气管的内壁面上的沉积，即使排气排出温度低于溶解的熔点，也能有效地利用供给的还原剂进行催化还原反应 还原剂的物质。

公开(公告)号：US20130064717A1

公开(公告)日：2013-03-14

申请号：US13616615

申请日：2012-09-14

申请人： Nobuhiko MASAKI ,  Kiminobu HIRATA ,  Jin KUSAKA ,  Hideaki KATO ,  Yasumasa NOTAKE

发明人： Nobuhiko MASAKI ,  Kiminobu HIRATA ,  Jin KUSAKA ,  Hideaki KATO ,  Yasumasa NOTAKE

IPC分类号： G05B17/00 ,  F01N3/18

CPC分类号： G05B17/00 ,  F01N3/106 ,  F01N3/18 ,  F01N3/208 ,  F01N2560/025 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0406 ,  F01N2900/0411 ,  F01N2900/1402 ,  F01N2900/1622 ,  Y02T10/24

摘要： An engine exhaust purification device comprises: a selective reduction type NOx catalyst; an oxidation catalyst disposed on an upstream side of the NOx catalyst; a reducing agent adding device which adds an NOx reducing agent to an exhaust gas of an engine; a control device which controls the reducing agent adding device; and an NO2 ratio calculation device which estimates an NO2 ratio of the exhaust gas flowing into the NOx catalyst. The NO2 ratio of the exhaust gas flowing into the NOx catalyst is calculated by a catalytic reaction model where the oxidation reaction of NO in the oxidation catalyst is numerically formulated, and the NO2 ratio is reflected to calculate an amount of ammonia adsorbed on the NOx catalyst by a catalytic reaction model where a chemical reaction concerned with the reduction of NOx in the NOx catalyst is numerically formulated.

摘要翻译： 发动机排气净化装置包括：选择还原型NOx催化剂; 设置在NOx催化剂的上游侧的氧化催化剂; 还原剂添加装置，其将NOx还原剂添加到发动机的排气中; 控制所述还原剂添加装置的控制装置; 以及NO2比率计算装置，其估计流入NOx催化剂的废气的NO 2比。 通过催化反应模型计算流入NOx催化剂的废气的NO2比，其中数值地配制氧化催化剂中的NO的氧化反应，反应NO 2比，计算吸附在NOx催化剂上的氨的量 通过催化反应模型，其中与NOx催化剂中的NOx的还原有关的化学反应被数值地形成。

公开(公告)号：US20120079812A1

公开(公告)日：2012-04-05

申请号：US13314888

申请日：2011-12-08

申请人： Nobuhiko MASAKI

发明人： Nobuhiko MASAKI

IPC分类号： F01N3/18 ,  F01N3/24

CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9436 ,  B01D53/9495 ,  B01D2251/2067 ,  B01D2255/911 ,  F01N13/0097 ,  F01N2610/02 ,  F01N2900/1402 ,  F01N2900/1616 ,  F01N2900/1622 ,  Y02T10/24

摘要： A control unit calculates an amount of produced ammonia from an amount of a dosed urea aqueous solution according to an engine operation state, and calculates a NOx purification ratio in the case of dosing the amount of the dosed urea aqueous solution according to the operation state to exhaust gas on an exhaust upstream side of an SCR catalyst. Moreover, the control unit estimates an amount of adsorbed ammonia to the SCR catalyst based on the produced ammonia amount and the NOx purification ratio. Then, the control unit subtracts the amount of the urea aqueous solution corresponding to the amount of the adsorbed ammonia from the amount of the dosed urea aqueous solution according to the operation state to correct the amount of the dosed urea aqueous solution, and controls the dosing of the urea aqueous solution based on the corrected amount of the dosed urea aqueous solution.

摘要翻译： 控制单元根据发动机运转状态从计量的尿素水溶液的量计算产生的氨的量，并且在将运送状态的计量尿素水溶液的量进行配量的情况下，计算出NOx净化率 在SCR催化剂的排气上游侧的废气。 此外，控制单元基于产生的氨量和NOx净化率来估计对SCR催化剂的氨的吸附量。 然后，控制单元根据运转状态从配量的尿素水溶液的量中减去与氨的吸附量对应的尿素水溶液的量，以校正配制的尿素水溶液的量，并控制给药 的尿素水溶液，基于校正量的尿素水溶液。