公开(公告)号：US11739675B2

公开(公告)日：2023-08-29

申请号：US17671730

申请日：2022-02-15

申请人： Hyundai Doosan Infracore Co., Ltd.

发明人： Dongyoung Jin ,  Inhyuk Im ,  Jiseok Kim ,  Rin Hyun ,  Taejoong Wang

IPC分类号： F01N3/10 ,  F01N3/20 ,  F01N13/00 ,  B01D53/94 ,  B01J19/00 ,  F02D41/02 ,  B01J19/24 ,  F01N3/035

CPC分类号： F01N3/208 ,  B01D53/944 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/9495 ,  B01J19/0013 ,  B01J19/0033 ,  B01J19/245 ,  F01N3/035 ,  F01N3/106 ,  F01N13/0093 ,  F02D41/0245 ,  B01J2219/00162 ,  B01J2219/00182 ,  F01N2610/1406 ,  F01N2610/1433 ,  F01N2610/1453 ,  F01N2900/1402 ,  F01N2900/1404

摘要： An exhaust gas after-treatment system includes a first reactor installed in an exhaust flow path, a second reactor disposed at a downstream side from the first reactor, a first reducing agent injection unit and a second reducing agent injection unit configured to respectively inject a reducing agent toward the exhaust gas to be introduced into the first reactor and the second reactor, a first temperature sensor and a second temperature sensor configured to respectively measure a temperature of the exhaust gas to be introduced into the first reactor and the second reactor, and a control device configured to control whether to inject the reducing agent from the first and second reducing agent injection units and the amount of reducing agent to be injected on the basis of temperature information provided by the first and second temperature sensors.