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公开(公告)号：US20180030870A1
公开(公告)日：2018-02-01
申请号：US15361123
申请日：2016-11-25
发明人： ChangHo JUNG , Pyung Soon Kim
CPC分类号： F01N3/035 , B01D53/94 , B01D53/9468 , B01D53/9472 , B01D2255/9155 , F01N3/0222 , F01N3/0821 , F01N3/0842 , F01N3/2066 , F01N3/2882
摘要： A method of manufacturing a catalyzed particulate filter may include: preparing a bare particulate filter including at least one inlet channel which may have a first end being open and a second end being blocked, at least one outlet channel which may have a first end being blocked and a second end being open and which is positioned alternately with the at least one inlet channel, at least one porous wall which defines a boundary between adjacent inlet and outlet channels, and a support which is located within at least one among the at least one inlet channel and the at least one outlet channel; injecting a catalyst slurry into the at least one inlet channel and the at least one outlet channel; discharging a portion of the catalyst slurry by blowing gas into or drawing the gas from the at least one inlet channel or the at least one outlet channel; and drying/calcining the particulate filter from which the portion of the catalyst slurry is discharged.
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公开(公告)号：US20180133702A1
公开(公告)日：2018-05-17
申请号：US15591460
申请日：2017-05-10
发明人： Pyung Soon KIM , Chang Hwan KIM , ChangHo JUNG
IPC分类号： B01J29/80 , B01J29/76 , B01J35/00 , B01J35/04 , B01J37/30 , B01J37/08 , B01D53/94 , F01N3/20 , F01N3/035
摘要： Provided herein is an exhaust system comprising a diesel particulate filter coated with a selective catalytic reduction (SDPF) wherein the SCR is coated with a Cu/LTA catalyst comprising a LTA zeolite that includes copper ions and the SCR is coated on a high pore diesel particulate matter filter, wherein a ratio of copper and aluminum is from about 0.14 to about 0.48, and wherein the Si/Al ratio of the LTA zeolite is from about 8 to about 100.
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公开(公告)号：US20180016958A1
公开(公告)日：2018-01-18
申请号：US15374768
申请日：2016-12-09
发明人： ChangHo JUNG , Pyung Soon KIM
IPC分类号： F01N9/00 , B01D46/00 , B01D53/94 , B01J38/00 , F01N3/20 , F01N13/00 , F01N3/025 , F01N3/035 , F01N11/00
CPC分类号： F01N9/002 , B01D46/0027 , B01D46/006 , B01D53/9422 , B01D53/9495 , B01D2279/30 , B01J38/00 , F01N3/0222 , F01N3/0253 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/20 , F01N9/00 , F01N11/002 , F01N11/007 , F01N13/009 , F01N13/0093 , F01N2510/06 , F01N2900/1402 , F01N2900/1602 , F01N2900/1614 , Y02T10/24 , Y02T10/47
摘要： A regeneration method of an apparatus of purifying an exhaust gas including a catalytic converter which is disposed on an exhaust pipe and includes a lean NOx trap (LNT) device in which a first LNT catalyst is coated and a catalyzed particulate filter (CPF) in which a second LNT catalyst is coated may include determining whether a nitrogen oxide (NOx) amount absorbed in the LNT device is greater than a threshold NOx amount, determining whether a temperature of the LNT device is higher than a first predetermined temperature when the NOx amount absorbed in the LNT device is greater than the threshold NOx amount, and regenerating, both of the LNT device and the CPF or only the LNT device according to a temperature of the CPF when the temperature of the LNT device is higher than the first predetermined temperature.
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公开(公告)号：US20190093539A1
公开(公告)日：2019-03-28
申请号：US16204783
申请日：2018-11-29
发明人： ChangHo JUNG , Pyung Soon KIM
IPC分类号： F01N9/00 , F01N13/00 , F01N3/20 , F01N3/025 , F01N11/00 , F01N3/022 , F01N3/08 , B01D53/94 , F01N3/035 , B01D46/00 , B01J38/00
摘要： A regeneration method of an apparatus of purifying an exhaust gas including a catalytic converter which is disposed on an exhaust pipe and includes a lean NOx trap (LNT) device in which a first LNT catalyst is coated and a catalyzed particulate filter (CPF) in which a second LNT catalyst is coated may include determining whether a nitrogen oxide (NOx) amount absorbed in the LNT device is greater than a threshold NOx amount, determining whether a temperature of the LNT device is higher than a first predetermined temperature when the NOx amount absorbed in the LNT device is greater than the threshold NOx amount, and regenerating, both of the LNT device and the CPF or only the LNT device according to a temperature of the CPF when the temperature of the LNT device is higher than the first predetermined temperature.
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公开(公告)号：US20180023434A1
公开(公告)日：2018-01-25
申请号：US15361133
申请日：2016-11-25
发明人： ChangHo JUNG , Pyung Soon KIM
CPC分类号： F01N3/035 , B01D46/2418 , B01D53/9418 , B01D53/9422 , B01D53/9463 , B01D53/9472 , B01D2255/903 , B01D2255/9155 , B01D2255/9202 , B01J35/04 , B01J37/0236 , B01J37/024 , F01N3/0222 , F01N3/0821 , F01N3/0842 , F01N3/2066 , F01N3/2882 , F01N2250/02 , F01N2330/06 , F01N2330/30 , F01N2330/60 , F01N2370/02 , F01N2510/06 , F01N2510/068
摘要： A method of manufacturing a catalyzed particulate filter may include: preparing a bare particulate filter; injecting a first catalyst slurry into at least one inlet channel or at least one outlet channel; discharging a portion of the first catalyst slurry by blowing gas into the at least one outlet channel or the at least one inlet channel or drawing the gas from the at least one inlet channel or the at least one outlet channel; injecting a second catalyst slurry into the at least one outlet channel or the at least one inlet channel; discharging a portion of the second catalyst slurry by blowing gas into the at least one inlet channel or the at least one outlet channel or drawing the gas from the at least one outlet channel or the at least one inlet channel; and drying/calcining the particulate filter from which the portion of the first catalyst slurry and the portion of the second catalyst slurry are discharged.
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公开(公告)号：US20180080357A1
公开(公告)日：2018-03-22
申请号：US15367049
申请日：2016-12-01
发明人： ChangHo JUNG , Pyung Soon KIM
CPC分类号： F01N3/0871 , F01N3/021 , F01N3/035 , F01N3/0814 , F01N3/0821 , F01N3/0842 , F01N3/2066 , F01N9/00 , F01N13/009 , F01N2250/02 , F01N2330/32 , F01N2510/0682 , F01N2900/1602 , F01N2900/1614 , Y02T10/24 , Y02T10/47
摘要： An exhaust system may include first purification device disposed at a rear end portion of exhaust manifold and including Lean NOx Trap (LNT); second purification device disposed at rear end portion of the first purification device and including a diesel particulate filter (DPF); and a third purification device disposed at a rear end portion of the second purification device and including a selective catalytic reduction (SCR), wherein the DPF of the second purification device includes at least one inflow channel, at least one outflow channel, at least one wall disposed between the inflow channel and the outflow channel and extended in a longitudinal direction, and a support disposed inside of at least one of the inflow channel and the outflow channel, and at least one catalyst is coated on one of the inner wall of the inflow channel, the inner wall of the outflow channel, and the support.
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公开(公告)号：US20170198618A1
公开(公告)日：2017-07-13
申请号：US15341059
申请日：2016-11-02
发明人： Pyung Soon KIM , Chang Hwan KIM , Chun Yong KANG , ChangHo JUNG
CPC分类号： F01N3/035 , B01D53/8643 , B01D53/885 , B01D53/94 , B01D2255/9155 , F01N3/0222 , F01N3/0224 , F01N2330/06 , F01N2330/08 , F01N2330/10 , F01N2330/12 , F01N2330/22
摘要： A catalyzed particulate filter includes at least one inflow channel including one end where a fluid inflows and another end that is blocked and extends in a length direction, at least one outflow channel including one end that is blocked and another end where the fluid outflows, and the other end extends in the length direction, at least one porous wall defining a boundary between the inflow channel and the outflow channel neighboring each other and extending in the length direction, and a catalyzed supporting member disposed on an inside of the outflow channel, wherein the supporting member includes a plurality of balls.
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公开(公告)号：US20210207513A1
公开(公告)日：2021-07-08
申请号：US17207133
申请日：2021-03-19
发明人： Nahm Roh JOO , Chang Hwan KIM , ChangHo JUNG
摘要： An after treatment method is disclosed. The after treatment method may include: operating an engine at a lean air/fuel ratio; calculating an amount of NH3 stored in an SCR catalyst; calculating an amount of NOx which will flow into the SCR catalyst; determining whether conversion to a rich air/fuel ratio is desired; calculating, when the conversion to the rich air/fuel ratio is desired, a rich duration for which the rich air/fuel ratio is maintained and a target air/fuel ratio; and operating the engine at the target air/fuel ratio for the rich duration.
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公开(公告)号：US20170362978A1
公开(公告)日：2017-12-21
申请号：US15299007
申请日：2016-10-20
发明人： ChangHo JUNG , Pyung Soon KIM
CPC分类号： F01N3/0814 , B01D53/9422 , B01D53/9431 , B01D53/9477 , B01D2255/1021 , B01D2255/2042 , B01D2255/2065 , B01D2255/904 , B01D2255/91 , B01D2255/915 , B01J23/63 , F01N3/035 , F01N3/0842 , F01N3/2066 , F01N3/28 , F01N13/009 , F01N2610/02
摘要： An apparatus for purifying an exhaust gas passing through an exhaust pipe includes a catalytic converter disposed on the exhaust pipe. The catalytic converter is provided with a lean NOx trap (LNT) device, the LNT device having an LNT catalyst coated therein, and a catalyzed particulate filter (CPF), the CPF having a catalyst coated therein, and the LNT device and the CPF are sequentially disposed in the catalytic converter. The CPF includes at least one inlet channel extending in a longitudinal direction, the at least one inlet channel having a first end into which fluid flows and a second end which is blocked, at least one outlet channel extending in the longitudinal direction, the at least one outlet channel having a first end which is blocked and a second end through which the fluid flows out, at least one porous wall that defines a boundary between neighboring inlet and outlet channels and that extends in the longitudinal direction, and a support with the catalyst coating thereon, and the support is located within at least one among the at least one inlet channel and the at least one outlet channel.
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