-
1.发明授权公开(公告)号：US11994056B1
公开(公告)日：2024-05-28
申请号：US18118290
申请日：2023-03-07
IPC分类号： F01N9/00 , B60K13/04 , F01N3/023 , F01N3/025 , F01N3/035 , F01N3/08 , F01N3/20 , F01N3/36 , F01N11/00 , F01N13/00
CPC分类号： F01N9/002 , B60K13/04 , F01N3/0232 , F01N3/0253 , F01N3/035 , F01N3/0821 , F01N3/36 , F01N13/0097 , F01N3/023 , F01N3/0233 , F01N3/2093 , F01N9/005 , F01N9/007 , F01N11/005 , F01N11/007 , F01N2250/02 , F01N2410/04 , F01N2430/08 , F01N2560/07 , F01N2610/03 , F01N2610/148 , F01N2900/0408 , F01N2900/0601 , F01N2900/10 , F01N2900/1406 , F01N2900/1411 , F01N2900/1602 , F01N2900/1611 , F01N2900/1808
摘要： Estimating soot comprises connecting exhaust pipe to engine, exhaust pipe has diesel oxidation catalyst and diesel particulate filter. Fuel injector is connected to exhaust pipe upstream from diesel oxidation catalyst and diesel particulate filter. Delta exhaust pressure sensor measures difference in exhaust pressure at inlet and outlet to diesel particulate filter. Controller is connected to fuel injector and to delta exhaust pressure sensor. Controller determines when to conduct active regeneration of diesel particulate filter based on estimated amount of soot accumulated therein. Controller, in first regeneration mode, causes fuel injector to inject fuel at first rate into exhaust stream, and re-evaluates soot accumulated within diesel particulate filter under increased volumetric flow of exhaust stream. Controller, in second regeneration mode, causes fuel injector to inject fuel at second rate, larger than first rate, into exhaust stream to combust soot trapped in diesel particulate filter.
-
公开(公告)号：US20180272280A1
公开(公告)日：2018-09-27
申请号：US15995316
申请日：2018-06-01
申请人： BASF Corporation
CPC分类号： B01D53/9418 , B01D53/944 , B01D53/945 , B01D53/9477 , B01D53/9495 , B01D2251/2067 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/9155 , B01D2258/012 , F01N3/0231 , F01N3/0821 , F01N3/2066 , F01N2510/0682 , F01N2570/18 , F01N2610/02 , Y02T10/22 , Y02T10/24
摘要： Zoned diesel oxidation catalysts containing a higher precious metal loading in the inlet zone that the outlet zone and an equal or shorter length inlet zone are described. Emission treatment systems and methods of remediating nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons using zoned diesel oxidation catalysts are also described.
-
公开(公告)号：US10036293B2
公开(公告)日：2018-07-31
申请号：US15333827
申请日：2016-10-25
发明人： Jun Sung Park
CPC分类号： F01N3/0814 , B01D53/9418 , B01D53/9422 , B01D53/9477 , B01D2255/2042 , B01D2255/2092 , B01D2255/50 , B01D2255/904 , F01N3/021 , F01N3/0821 , F01N3/0842 , F01N3/085 , F01N3/0885 , F01N3/2066 , F01N13/0093 , Y02T10/24
摘要： An apparatus for purifying an exhaust gas includes an engine, an exhaust pipe, a first lean NOx trap (LNT) adapted to absorb nitrogen oxide (NOx) contained in the exhaust gas, to release the absorbed NOx, and to reduce the NOx contained in the exhaust gas or the released NOx or to generate ammonia (NH3), a second LNT adapted to absorb the NOx, to release the absorbed NOx, and to reduce the NOx contained in the exhaust gas or the released NOx or to generate the NH3, and a selective catalytic reduction (SCR) catalyst adapted to temporarily absorb the NH3 and to reduce the NOx contained in the exhaust gas, wherein the second LNT is positioned such that an average temperature of the second LNT is lower than that of the first LNT by 50-150° C. based on an average temperature of the exhaust gas.
-
公开(公告)号：US09993771B2
公开(公告)日：2018-06-12
申请号：US12484710
申请日：2009-06-15
CPC分类号： B01D53/9418 , B01D53/944 , B01D53/945 , B01D53/9477 , B01D53/9495 , B01D2251/2067 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/9155 , B01D2258/012 , F01N3/0231 , F01N3/0821 , F01N3/2066 , F01N2510/0682 , F01N2570/18 , F01N2610/02 , Y02T10/22 , Y02T10/24
摘要： Zoned diesel oxidation catalysts containing a higher precious metal loading in the inlet zone that the outlet zone and an equal or shorter length inlet zone are described. Emission treatment systems and methods of remediating nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons using zoned diesel oxidation catalysts are also described.
-
公开(公告)号：US20180135485A1
公开(公告)日：2018-05-17
申请号：US15350562
申请日：2016-11-14
发明人： Rahul Mital , Gongshin Qi , Charles Dean , Charles Solbrig
IPC分类号： F01N3/08 , B01D53/94 , B01D46/00 , B01J23/44 , B01J23/02 , B01J23/10 , B01J23/04 , B01J29/076 , B01J29/072 , B01J29/06 , B01J35/00 , B01J35/04
CPC分类号： F01N3/0814 , B01D46/0027 , B01D53/9418 , B01D53/9431 , B01D53/9481 , B01D2255/1023 , B01D2255/2042 , B01D2255/2065 , B01D2255/50 , B01D2279/30 , B01J23/02 , B01J23/04 , B01J23/10 , B01J23/44 , B01J29/06 , B01J29/072 , B01J29/076 , B01J35/0006 , B01J35/04 , F01N3/0821 , F01N3/0842 , F01N3/103 , F01N3/2066 , F01N2510/063 , F01N2510/0684 , F01N2570/14 , F01N2610/02
摘要： Selective catalytic reduction filter (SCRF) devices and systems incorporating the same are provided. Systems can include an exhaust gas source, an exhaust gas conduit capable of receiving an exhaust gas stream from the exhaust gas source, and an SCRF device in fluid communication therewith. The SCRF device can include a filter, a selective catalytic reduction (SCR) catalyst disposed on at least portion of the filter, and a NOx storage coating on at least a portion of the filter. The NOx storage coating can include one or more of palladium, barium, or cerium. The NOx storage coating can be biased towards the upstream side of the filter. The NOx storage coating can overlap a portion of the SCR catalyst. The system can further include a water-absorbing alkali oxide. The water-absorbing alkali oxide can be disposed within the SCRF device, the exhaust gas conduit, or in an upstream oxidation catalyst device.
-
公开(公告)号：US09759117B2
公开(公告)日：2017-09-12
申请号：US14976335
申请日：2015-12-21
发明人： Arifumi Matsumoto , Toru Kidokoro , Taiga Hagimoto , Makoto Ogiso , Kenji Furui
CPC分类号： F01N11/002 , F01N3/035 , F01N3/0814 , F01N3/0821 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N11/00 , F01N2250/02 , F01N2550/04 , F01N2560/08 , F01N2900/0418 , F01N2900/0422 , F01N2900/1402 , F01N2900/1602 , F01N2900/1606 , Y02T10/24 , Y02T10/47
摘要： A diagnostic system for an internal combustion engine is disclosed. The diagnostic system may include an electronic control unit. The electronic control unit may determine whether a predetermined condition is satisfied. The predetermined condition may be a condition under which an amount of particulate matter that separates from a filter is larger than or equal to a predetermined separation amount as a urea water-originated deposit once accumulated in the filter separates in gaseous form. When the electronic control unit determines that the predetermined condition is satisfied, the electronic control unit may not execute a diagnosis of a malfunction in the filter based on a filter differential pressure until a predetermined period elapses from the point in time at which it is determined that the predetermined condition is satisfied.
-
公开(公告)号：USRE46512E1
公开(公告)日：2017-08-15
申请号：US13226882
申请日：2011-09-07
申请人： Thomas Beckmann , Alexander Massner
发明人： Thomas Beckmann , Alexander Massner
CPC分类号： F01N3/2066 , B01D53/9495 , F01N3/0814 , F01N3/0821 , F01N3/0842 , F01N3/0871 , F01N2250/02 , F01N2250/12 , F01N2250/14 , F01N2430/06 , F01N2610/02 , Y02T10/24
摘要： An exhaust-gas purification system and method are provided for an internal combustion engine having an NOx storage catalytic converter and a downstream SCR catalytic converter. The NOx storage catalytic converter can be supplied in a first operating mode with an oxidizing exhaust gas and in a second operating mode with a reducing exhaust gas. A third operating mode is provided between the first operating mode and the second operating mode, in which an exhaust gas which has a lower content of oxidizing constituents than the first operating mode and a lower content of reducing constituents than the second operating mode can be supplied to the NOx storage catalytic converter to improve NH3 production at the start of converter regeneration.
-
公开(公告)号：US20170167335A1
公开(公告)日：2017-06-15
申请号：US15347979
申请日：2016-11-10
发明人： Pyung Soon KIM , ChangHo Jung
CPC分类号： F01N3/035 , B01D53/9418 , B01D53/9422 , B01D53/944 , B01D53/9472 , B01D2255/9035 , B01D2255/904 , B01D2255/9155 , B01J35/04 , B01J37/0215 , F01N3/0211 , F01N3/0821 , F01N3/0842 , F01N3/2066
摘要： A catalyzed particulate filter may include at least one inlet channel extending in a longitudinal direction, and having a first end into which fluid flows and a second end which is blocked; at least one outlet channel extending in a longitudinal direction, and having a first end which is blocked and a second end through which the fluid flows out; at least one wall that defines the boundary between adjacent inlet and outlet channels and that extends in a longitudinal direction; and at least one support positioned within at least one of the at least one inlet channel and the at least one outlet channel.
-
公开(公告)号：US09656209B2
公开(公告)日：2017-05-23
申请号：US15016371
申请日：2016-02-05
发明人： Hsiao-Lan Chang , Hai-Ying Chen
IPC分类号： B01D53/50 , B01D53/94 , B01J21/04 , B01J21/06 , B01J23/10 , B01J23/44 , B01J23/46 , B01J23/50 , B01J23/56 , B01J23/63 , B01J29/00 , B01J37/02 , B01J35/00 , B01J29/068 , B01J29/74 , B01J35/04 , B01J37/00 , F01N3/021 , F01N3/035 , F01N3/08 , F01N3/10 , F01N3/20
CPC分类号： B01D53/945 , B01D53/944 , B01D53/9477 , B01D2255/1023 , B01D2255/1025 , B01D2255/104 , B01D2255/2092 , B01D2255/407 , B01D2255/502 , B01D2255/504 , B01D2255/9022 , B01D2255/912 , B01D2255/915 , B01J23/464 , B01J23/63 , B01J29/068 , B01J29/7415 , B01J35/0006 , B01J35/04 , B01J37/0009 , B01J37/0018 , B01J37/0063 , B01J37/0244 , B01J37/0248 , B01J2229/186 , F01N3/021 , F01N3/035 , F01N3/0821 , F01N3/0842 , F01N3/101 , F01N3/2066 , Y02T10/22
摘要： A three-way catalyst is disclosed. The three-way catalyst comprises a palladium component comprising palladium and a ceria-zirconia-alumina mixed or composite oxide, and also comprises a rhodium component comprising rhodium and a zirconia-containing material. The palladium component and the rhodium component are coated onto a silver-containing extruded molecular sieve substrate. The invention also includes an exhaust system comprising the three-way catalyst. The three-way catalyst results in improved hydrocarbon storage and conversion, in particular during the cold start period.
-
公开(公告)号：US09366166B2
公开(公告)日：2016-06-14
申请号：US14260405
申请日：2014-04-24
IPC分类号： B01D53/54 , B01D53/56 , B01D53/94 , B01D50/00 , B01J8/02 , C01B21/00 , C01B23/00 , C01B25/00 , C01B31/00 , C01B33/00 , C01B35/00 , C01G28/00 , C01G30/00 , F01N3/10 , B01J23/00 , B01J23/02 , B01J23/06 , B01J23/08 , B01J23/10 , B01J23/40 , B01J23/42 , B01J23/44 , B01J23/56 , B01J23/70 , B01J23/74 , B01J21/04 , F01N3/035 , B01D46/24 , B01D53/34 , B01J35/00 , F01N3/021 , F01N13/00 , B01J29/06 , B01J35/04 , F01N3/08 , F01N3/022 , F01N3/20
CPC分类号： F01N3/035 , B01D46/24 , B01D53/34 , B01D53/9418 , B01D53/9431 , B01D53/944 , B01D53/9445 , B01D53/9472 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/50 , B01D2255/9032 , B01D2255/908 , B01D2255/91 , B01D2255/9155 , B01D2258/012 , B01D2258/014 , B01J23/40 , B01J29/06 , B01J35/006 , B01J35/04 , F01N3/021 , F01N3/0222 , F01N3/0814 , F01N3/0821 , F01N3/0842 , F01N3/101 , F01N3/2066 , F01N13/009 , F01N13/0097 , F01N2330/06 , F01N2370/00 , F01N2510/0682 , Y02A50/2324 , Y02A50/2325 , Y02T10/22 , Y02T10/24
摘要： A catalyzed filter for filtering particulate matter from exhaust gas emitted from a positive ignition internal combustion engine comprises a ceramic porous wall-flow filter substrate having a total substrate length and having inlet channels defined in part by ceramic inlet wall surfaces and outlet channels defined in part by ceramic outlet wall surfaces, wherein the inlet surfaces are separated from the outlet surfaces by a first porous structure containing pores of a first mean pore size, wherein the porous substrate is coated in part with a catalyst washcoat composition, wherein a second porous structure of a washcoated part of the porous substrate contains pores of a second mean pore size, wherein the second mean pore size is less than the first mean pore size, which catalyst washcoat composition being disposed in a first zone comprising the inlet surfaces of a first substrate length less than the total substrate length, wherein a second zone comprising the outlet surfaces of a second substrate length contains no washcoat and wherein the sum of the substrate length in the first zone and the substrate length in the second zone is >100%.
摘要翻译： 用于从正点火内燃机排放的废气中过滤颗粒物质的催化过滤器包括具有总基板长度并具有部分由陶瓷入口壁表面限定的入口通道的陶瓷多孔壁流过滤器基底和部分限定的出口通道 通过陶瓷出口壁表面，其中入口表面通过包含第一平均孔径的孔的第一多孔结构与出口表面分离，其中多孔基底部分地涂覆有催化剂修补基面涂层组合物，其中第二多孔结构 所述多孔基材的涂有涂层的部分包含第二平均孔径的孔，其中所述第二平均孔径小于所述第一平均孔径，所述催化剂修补基面涂料组合物设置在第一区域中，所述第一区域包括第一基材长度 小于总衬底长度，其中包括seco的出口表面的第二区域 nd基底长度不包含修补基面涂层，并且其中第一区域中的基底长度和第二区域中的基底长度的总和> 100％。
-
-
-
-
-
-
-
-
-
搜索结果
931 条记录 (耗时 0.031 秒)
