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    • 76. 发明公开
    • 배기 가스 정화 장치
    • 用于净化排气的装置
    • KR1020090104441A
    • 2009-10-06
    • KR1020080029862
    • 2008-03-31
    • 현대자동차주식회사
    • 김창대이진하조지호주기형정진우
    • F01N3/28F01N3/24
    • F01N3/2066B01D53/9418B01D53/944B01D53/9477B01D2255/1021B01D2255/1023B01D2255/20738B01D2255/20761B01D2255/50B01D2258/012B01J23/42B01J23/44B01J29/072B01J35/0006F01N3/035F01N13/009F01N2250/02F01N2510/0682Y02A50/2341Y02T10/24
    • PURPOSE: An exhaust gas purification device is provided to completely oxidize HC and CO included in the exhaust gas by mounting a DOC unit between a CPF unit and a SCR unit. CONSTITUTION: An exhaust gas purification device comprises a smoke reducing unit(30), a diesel oxidation catalyst(40), a blow nozzle(50) and an optional catalytic reduction unit(60). The smoke reducing unit oxidizes hydrocarbon and carbon monoxide included in the exhaust gas using a first diesel oxidation catalyst. The smoke reducing unit collects and reproduces the particulates. The diesel oxidation catalyst is installed in the backend of a CPF unit and oxidizes HC and CO using a second DOC. The diesel oxidation catalyst oxidizes the nitrogen oxide to nitrogen dioxide using second DOC. The blow nozzle is established at the DOC unit backend and spays the reducing agent on the exhaust gas from the DOC unit. The optional catalytic reduction unit is installed the backend of the blow nozzle and restores the nitric oxide within the exhaust to the nitrogen gas.
    • 目的:提供一种废气净化装置,通过将DOC单元安装在CPF单元和SCR单元之间来完全氧化废气中包含的HC和CO。 构成:废气净化装置包括减烟单元(30),柴油氧化催化剂(40),吹塑喷嘴(50)和任选的催化还原单元(60)。 减烟装置使用第一柴油氧化催化剂氧化废气中所含的烃和一氧化碳。 减烟装置收集并再现颗粒物。 柴油氧化催化剂安装在CPF单元的后端,并使用第二个DOC氧化HC和CO。 柴油氧化催化剂使用第二DOC将氮氧化物氧化成二氧化氮。 喷嘴在DOC单元后端建立,并将还原剂从DOC单元中排出。 可选的催化还原单元安装在喷嘴的后端,并将废气中的一氧化氮还原成氮气。
    • 79. 发明公开
    • 가솔린 미립자 필터
    • KR20180059895A
    • 2018-06-05
    • KR20187012050
    • 2016-09-30
    • F01N3/022F01N3/035
    • F01N3/0222F01N3/035F01N2330/06F01N2510/0682Y02T10/22
    • 종방향을그들사이에서규정하는제1 면및 제2 면, 및종방향으로연장되어있는제1 및제2 복수채널을갖는다공성필터기판을포함하는포지티브점화내연엔진의배출물처리시스템에서사용하기위한삼원촉매활성을갖는촉매벽-유동형모노리스필터이며, 여기서제1 복수채널은제1 면에서개방되어있고제2 면에서폐쇄되어있으며제1 복수채널의채널은부분적으로채널벽 표면에의해규정되고, 제2 복수채널은제2 면에서개방되어있고제1 면에서폐쇄되어있으며제2 복수채널의채널은부분적으로채널벽 표면에의해규정되고, 제1 복수채널의채널벽 표면과제2 복수채널의채널벽 표면사이의채널벽은다공성이고, 제1 복수채널의적어도채널벽 표면상에층 두께를갖는촉매물질을포함하는제1 벽상(on-wall) 코팅이존재하고, 제1 복수채널의채널벽 표면상의촉매물질은 (i) 로듐 (Rh) 단독; (ii) 팔라듐 (Pd) 단독; (iii) 백금 (Pt) 및로듐 (Rh); (iv) 팔라듐 (Pd) 및로듐 (Rh); 및 (v) 백금 (Pt), 팔라듐 (Pd) 및로듐 (Rh)으로이루어진군으로부터선택된하나이상의백금족금속및 내화성금속산화물지지체를포함하며, 여기서 (i) 제1 복수채널의채널벽 표면상에존재하는벽상코팅의단위부피당 하나이상의백금족금속의중량기준의양이종방향을따라계속적으로변화하고/거나, (ii) 제1 복수채널의채널벽 표면상에존재하는벽상코팅의층 두께가종방향을따라계속적으로변화하는것인촉매벽-유동형모노리스필터가제공된다.