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    • 5. 发明公开
    • 배기가스 정화장치 및 그 제어방법
    • 排气净化器及其控制方法
    • KR1020060093350A
    • 2006-08-24
    • KR1020067013639
    • 2005-01-18
    • 얀마 가부시키가이샤
    • 오노,타이수케
    • F01N3/08F01N3/20F01N3/24B01D53/56
    • B01D53/9454B01D53/9445F01N3/0256F01N3/031F01N3/0821F01N3/0842F01N3/085F01N3/0871F01N3/0878F01N3/0885F01N3/26F01N3/30F01N3/306F01N3/32F01N3/36F01N3/38F01N13/009F01N13/011F01N2240/14F01N2240/18F01N2240/20F01N2430/08F01N2430/085F02B37/00Y02T10/22
    • It is intended to efficiently remove particulate substances, such as NOx and soot, without poisoning by SOx, etc. from dilute-combustion effecting internal combustion engines, combustion equipment, etc. There is provided an exhaust gas purifier to be installed in exhaust passage (2) of internal combustion engine (1) or the like, comprising, disposed in the exhaust passage (2), NOx adsorbent (4) capable of temporarily adsorbing nitrogen oxides even in an atmosphere of excess air and capable of desorbing the adsorbed nitrogen oxides upon temperature rise or in a reducing atmosphere, adsorbed substance desorbing means (3) arranged on an exhaust upstream side as compared with the NOx adsorbent (4) and capable of heating the exhaust or converting it to a reducing atmosphere, and combustion device (5) arranged on an exhaust downstream side as compared with the NOx adsorbent (4) and composed of fuel nozzle (6) and igniter (7). In normal operation, the NOx adsorbent (4) adsorbs NOx contained in exhaust gas. When the amount of NOx adsorbed increases to saturation, the adsorbed substance desorbing means (3) and the combustion device (5) are operated to thereby desorb the NOx, which is burned off in combustion over-rich combustion region (X1) of the combustion device (5).
    • 旨在有效地从稀释燃烧效果的内燃机,燃烧设备等中除去诸如NOx和烟灰的颗粒物质,而不会被SOx等中毒。提供了一种安装在排气通道中的排气净化器 2)的内燃机(1)等,包括设置在排气通道(2)中的NOx吸附剂(4),即使在过量空气气氛中也能够临时吸附氮氧化物并且能够吸附吸附的氮氧化物 在升温或还原气氛中,与NOx吸附剂(4)相比,配置在排气上游侧的吸附物质解吸装置(3),能够对排气进行加热或将其转化为还原气氛,燃烧装置(5) )与NOx吸附剂(4)相比排列在废气下游侧,由燃料喷嘴(6)和点火器(7)构成。 在正常操作中,NOx吸附剂(4)吸附废气中所含的NOx。 当NOx吸附量增加到饱和时,操作吸附物质解吸装置(3)和燃烧装置(5),从而解吸燃烧的燃烧过度燃烧区域(X1)中的NOx 装置(5)。