公开(公告)号：US09597637B2

公开(公告)日：2017-03-21

申请号：US14374787

申请日：2013-01-25

申请人： DOOSAN INFRACORE CO., LTD.

发明人： Ji Hoon Lim ,  Min Seok Ko ,  Byoung Gul Oh ,  Kyung Min Park ,  Sang Hoon Kim

IPC分类号： B01D53/94 ,  F01N3/20 ,  F01N3/031 ,  F01N13/00 ,  F01N3/10 ,  F01N3/021 ,  F02B37/18

CPC分类号： B01D53/9495 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9436 ,  B01D53/944 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/00 ,  B01D2258/012 ,  B01D2258/014 ,  F01N3/021 ,  F01N3/031 ,  F01N3/103 ,  F01N3/2053 ,  F01N3/2066 ,  F01N3/208 ,  F01N13/009 ,  F01N13/011 ,  F01N2240/36 ,  F01N2560/06 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2900/0416 ,  F01N2900/0601 ,  F01N2900/1402 ,  F01N2900/1404 ,  F01N2900/1602 ,  F01N2900/1621 ,  F01N2900/1622 ,  F02B37/18 ,  Y02T10/24

摘要： The present disclosure relates to an exhaust gas post-processing apparatus, and more particularly, to an exhaust gas post-processing apparatus and a control method thereof which reduce emission of nitrogen oxide (NOx) by bypassing high-temperature exhaust gas to a front end of a selective catalytic reduction. Accordingly, some embodiments of the present disclosure have been made to solve one or more of the aforementioned problems, and some embodiments of the present disclosure increase a reducing rate of nitrogen oxide by controlling a flow of exhaust gas by changing a structure of an exhaust pipe. The exhaust gas post-processing apparatus and the control method thereof according to the present disclosure may increase a reducing rate of nitrogen oxide.

公开(公告)号：US09346014B2

公开(公告)日：2016-05-24

申请号：US14369578

申请日：2012-12-17

申请人： DOOSAN INFRACORE CO., LTD.

发明人： Ji Hoon Lim ,  Min Seok Ko ,  Byoung Gul Oh ,  Kyung Min Park ,  Sang Hoon Kim

IPC分类号： B01D53/86 ,  F01N3/10 ,  F01N3/20 ,  F01N3/023 ,  B01D53/94 ,  F01N11/00

CPC分类号： B01D53/8631 ,  B01D53/869 ,  B01D53/8696 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/944 ,  B01D53/9477 ,  B01D53/9495 ,  F01N3/0231 ,  F01N3/106 ,  F01N3/2053 ,  F01N3/2066 ,  F01N11/00 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2570/18 ,  F01N2610/02 ,  Y02T10/24

摘要： The present disclosure relates to an exhaust gas after-treatment apparatus and an exhaust gas after-treatment method including a selective catalytic reduction (SCR) process, and more particularly, to an exhaust gas after-treatment apparatus having improved durability and an exhaust gas after-treatment method, which selectively determine to operate a selective catalyst reducing part and an ammonia oxidation catalyst (AOC) part on the basis of a generated amount and a rate of change of a nitrogen compound (NOx) in exhaust gas.

摘要翻译： 本公开涉及排气后处理装置和包括选择性催化还原（SCR）方法的废气后处理方法，更具体地说，涉及具有改善的耐久性的废气后处理装置和废气后处理装置 处理方法，其基于废气中的氮化合物（NOx）的产生量和变化率选择性地确定操作选择性催化剂还原部分和氨氧化催化剂（AOC）部分。

公开(公告)号：US09624874B2

公开(公告)日：2017-04-18

申请号：US14654754

申请日：2013-12-09

申请人： Doosan Infracore Co., Ltd.

发明人： Ji Hoon Lim

IPC分类号： F02M25/00 ,  F02M25/07 ,  F02D41/00 ,  F02M26/16 ,  F02M26/05 ,  F02M26/06 ,  F02M26/15 ,  F02M26/25 ,  F02M26/24 ,  F02D21/08 ,  F02B37/00

CPC分类号： F02M26/15 ,  F01N3/2066 ,  F01N2610/02 ,  F02B37/00 ,  F02D21/08 ,  F02D41/005 ,  F02D2021/083 ,  F02M26/04 ,  F02M26/05 ,  F02M26/06 ,  F02M26/16 ,  F02M26/22 ,  F02M26/24 ,  F02M26/25 ,  Y02T10/144 ,  Y02T10/47

摘要： An exhaust gas recirculation apparatus including an engine; a suction line; an exhaust line; a post-processing unit which is disposed in the exhaust line to reduce hazardous substances contained in the exhaust gas; a first circulation line which guides a part of the exhaust gas, which is guided to the exhaust line, to the suction line; a second circulation line which guides a part of the exhaust gas, which is guided to a downstream side of the post-processing unit, to the suction line; and a bypass line which branches off from an upstream side of the second circulation line, and merges with a downstream side of the second circulation line, wherein ammonia slip, which is discharged from the post-processing unit, is prevented from being guided to the suction line.

公开(公告)号：US10138849B2

公开(公告)日：2018-11-27

申请号：US15453083

申请日：2017-03-08

申请人： Doosan Infracore Co., Ltd.

发明人： Ji Hoon Lim

IPC分类号： F02M26/00 ,  F02M26/15 ,  F02D41/00 ,  F02B37/00 ,  F02M26/16 ,  F02M26/05 ,  F02M26/06 ,  F02M26/25 ,  F02M26/24 ,  F02M26/04 ,  F02M26/22 ,  F01N3/20 ,  F02D21/08

摘要： An exhaust gas recirculation apparatus including an engine; a suction line; an exhaust line; a post-processing unit which is disposed in the exhaust line to reduce hazardous substances contained in the exhaust gas; a first circulation line which guides a part of the exhaust gas, which is guided to the exhaust line, to the suction line; a second circulation line which guides a part of the exhaust gas, which is guided to a downstream side of the post-processing unit, to the suction line; and a bypass line which branches off from an upstream side of the second circulation line, and merges with a downstream side of the second circulation line, wherein ammonia slip, which is discharged from the post-processing unit, is prevented from being guided to the suction line.

公开(公告)号：US20150023854A1

公开(公告)日：2015-01-22

申请号：US14374787

申请日：2013-01-25

申请人： DOOSAN INFRACORE CO., LTD.

发明人： Ji Hoon Lim ,  Min Seok Ko ,  Byoung Gul Oh ,  Kyung Min Park ,  Sang Hoon Kim

IPC分类号： B01D53/94

CPC分类号： B01D53/9495 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9436 ,  B01D53/944 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/00 ,  B01D2258/012 ,  B01D2258/014 ,  F01N3/021 ,  F01N3/031 ,  F01N3/103 ,  F01N3/2053 ,  F01N3/2066 ,  F01N3/208 ,  F01N13/009 ,  F01N13/011 ,  F01N2240/36 ,  F01N2560/06 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2900/0416 ,  F01N2900/0601 ,  F01N2900/1402 ,  F01N2900/1404 ,  F01N2900/1602 ,  F01N2900/1621 ,  F01N2900/1622 ,  F02B37/18 ,  Y02T10/24

摘要： The present disclosure relates to an exhaust gas post-processing apparatus, and more particularly, to an exhaust gas post-processing apparatus and a control method thereof which reduce emission of nitrogen oxide (NOx) by bypassing high-temperature exhaust gas to a front end of a selective catalytic reduction. Accordingly, some embodiments of the present disclosure have been made to solve one or more of the aforementioned problems, and some embodiments of the present disclosure increase a reducing rate of nitrogen oxide by controlling a flow of exhaust gas by changing a structure of an exhaust pipe. The exhaust gas post-processing apparatus and the control method thereof according to the present disclosure may increase a reducing rate of nitrogen oxide.

摘要翻译： 废气后处理装置技术领域本发明涉及一种废气后处理装置，更具体地，涉及通过将高温废气旁路至前端来减少氮氧化物（NOx）的排放的废气后处理装置及其控制方法 的选择性催化还原。 因此，本公开的一些实施例已经被做出以解决一个或多个上述问题，并且本公开的一些实施例通过改变排气管的结构来控制排气的流量来增加氮氧化物的降低速率 。 根据本公开的废气后处理装置及其控制方法可以增加氮氧化物的还原率。

公开(公告)号：US20150004085A1

公开(公告)日：2015-01-01

申请号：US14369578

申请日：2012-12-17

申请人： DOOSAN INFRACORE CO., LTD.

发明人： Ji Hoon Lim ,  Min Seok Ko ,  Byoung Gul Oh ,  Kyung Min Park ,  Sang Hoon Kim

IPC分类号： B01D53/86

CPC分类号： B01D53/8631 ,  B01D53/869 ,  B01D53/8696 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/944 ,  B01D53/9477 ,  B01D53/9495 ,  F01N3/0231 ,  F01N3/106 ,  F01N3/2053 ,  F01N3/2066 ,  F01N11/00 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2570/18 ,  F01N2610/02 ,  Y02T10/24

摘要： The present disclosure relates to an exhaust gas after-treatment apparatus and an exhaust gas after-treatment method including a selective catalytic reduction (SCR) process, and more particularly, to an exhaust gas after-treatment apparatus having improved durability and an exhaust gas after-treatment method, which selectively determine to operate a selective catalyst reducing part and an ammonia oxidation catalyst (AOC) part on the basis of a generated amount and a rate of change of a nitrogen compound (NOx) in exhaust gas.

摘要翻译： 本公开涉及排气后处理装置和包括选择性催化还原（SCR）方法的废气后处理方法，更具体地说，涉及具有改善的耐久性的废气后处理装置和废气后处理装置 处理方法，其基于废气中的氮化合物（NOx）的产生量和变化率选择性地确定操作选择性催化剂还原部分和氨氧化催化剂（AOC）部分。