会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 25. 发明专利
    • Exhaust gas purification system for an internal combustion engine
    • JP3491599B2
    • 2004-01-26
    • JP2000108035
    • 2000-04-05
    • トヨタ自動車株式会社
    • 好一郎 中谷和浩 伊藤
    • F01N3/02B01D46/42B01D53/86B01D53/94F01N3/023F02M25/07
    • F01N3/0233F01N2570/16
    • PROBLEM TO BE SOLVED: To improve the work for oxidizing particulates for elimination by avoiding the catch of the particulates on one surface of a particulate filter partition wall, sufficiently transmitting the work for oxidizing the particulates for elimination to all of the particulates, progressing the work for oxidizing the particulates for elimination with HC, CO in the case of the low-temperature combustion, and generating NO2 from NO in the oxidization catalyst. SOLUTION: An active oxygen discharging agent 61 for oxidizing particulates is carried by a partition wall 54 of a particulate filter 22, and a flow of the exhaust gas passing through the partition wall 54 is reversed by an exhaust changeover valve 73 so that the particulate to be caught are distributed to one surface and the surface of the partition wall 54 so as to lower the possibility that the particulate caught by the partition wall 54 is heaped without being oxidized and eliminated, and the oxidization catalyst 22 is arranged in series to the particulate filter 22, and in the case of carrying out the low-temperature combustion hardly generating soot, the exhaust gas is allowed to flow in order of the particulate filter 22 and the oxidization catalyst 122, and in the case of carrying out the normal combustion, the exhaust gas is allowed to in order of the oxidization catalyst 122 and the particulate filter 22.