-
公开(公告)号:US09140167B2
公开(公告)日:2015-09-22
申请号:US13996575
申请日:2011-12-21
申请人: David Bergeal , Andrew Francis Chiffey , Marie Feuerstein , Paul Richard Phillips , Wolfgang Strehlau , Daniel Swallow , James Wylie
发明人: David Bergeal , Andrew Francis Chiffey , Marie Feuerstein , Paul Richard Phillips , Wolfgang Strehlau , Daniel Swallow , James Wylie
IPC分类号: F01N3/00 , F01N3/28 , B01D53/94 , B01D53/96 , B01J23/63 , B01J23/96 , F02D41/02 , B01J23/40 , B01J29/70 , B01J37/02
CPC分类号: B01J38/04 , B01D53/944 , B01D53/9477 , B01D53/96 , B01D2255/1021 , B01D2255/2065 , B01D2255/2073 , B01D2255/20738 , B01D2255/20746 , B01D2255/20761 , B01D2255/2094 , B01D2258/012 , B01J23/40 , B01J23/63 , B01J23/96 , B01J29/7007 , B01J29/7415 , B01J29/90 , B01J35/0006 , B01J35/04 , B01J37/0225 , B01J37/0244 , B01J37/0246 , F01N3/2803 , F02D41/0275
摘要: An apparatus is disclosed. The apparatus comprises a lean-burn internal combustion engine, engine management means and an exhaust system for treating exhaust gas of the engine. The exhaust system comprises a first oxidation catalyst disposed on a first honeycomb monolith substrate. The first oxidation catalyst comprises platinum supported on a first metal oxide support comprising at least one reducible oxide, and is substantially free of alkali metals and alkaline earth metals. The engine management means is arranged, when in use, intermittently to modulate the lambda composition of the exhaust gas entering the first oxidation catalyst to a rich lambda composition.
摘要翻译: 公开了一种装置。 该装置包括稀燃内燃机,发动机管理装置和用于处理发动机废气的排气系统。 排气系统包括设置在第一蜂窝状整料基板上的第一氧化催化剂。 第一氧化催化剂包括负载在包含至少一种可还原氧化物的第一金属氧化物载体上的铂,并且基本上不含碱金属和碱土金属。 发动机管理装置在使用时被间歇地布置成将进入第一氧化催化剂的废气的λ组成调节成富Lambda组成。