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公开(公告)号:US5489319A
公开(公告)日:1996-02-06
申请号:US123854
申请日:1993-09-09
IPC分类号: F01N3/02 , F01N3/021 , F01N3/027 , F01N3/031 , F01N3/032 , F01N9/00 , F01N13/04 , F02B3/06 , B01D46/04
CPC分类号: F01N3/027 , F01N13/011 , F01N3/031 , F01N3/032 , F01N9/002 , F01N2240/36 , F01N2270/04 , F01N2330/10 , F02B3/06 , Y02T10/47 , Y10S55/30
摘要: Apparatus for purifying exhaust gas from a diesel engine includes a wall-flow filter made of a porous ceramic material for capturing carbon components contained in the exhaust gas and burning up the captured carbon components, a first exhaust pipe for introducing the exhaust gas into the filter, a second exhaust pipe for introducing the exhaust gas purified by the filter a bypass pipe bypassing the filter, first and second valves arranged inside of the first and bypass pipes, respectively, for controlling the exhaust gas flow, a heater for burning up carbon components captured in the filter, first and second temperature sensors for detecting temperatures in the first pipe and the filter, respectively, and a controller for controlling opening and closing of the first and second valves based on the temperature difference between temperatures detected by first and second temperature sensors to prevent the filter from cracking.
摘要翻译: 用于从柴油发动机净化废气的装置包括:由多孔陶瓷材料制成的壁流式过滤器,用于捕获包含在排气中的碳成分并燃烧所捕获的碳组分;第一排气管,用于将废气引入过滤器 第二排气管,用于将通过过滤器净化的废气分别旁通过滤器的旁通管,分别配置在第一和旁通管内侧的第一和第二阀,用于控制废气流,用于燃烧碳成分的加热器 捕获在过滤器中,分别用于检测第一管和过滤器中的温度的第一和第二温度传感器,以及用于基于由第一和第二温度检测到的温度之间的温度差来控制第一和第二阀的打开和关闭的控制器 传感器防止过滤器破裂。