发明名称 |
EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE |
摘要 |
An internal combustion engine in an engine exhaust passage of which a hydrocarbon feed valve and an exhaust purification catalyst are arranged. On the exhaust purification catalyst, platinum Pt is carried and a basic layer is formed. A concentration of hydrocarbons flowing into the exhaust purification catalyst is made to vibrate within a predetermined range of amplitude of 200 ppm or more and within a predetermined range of period of 5 seconds or less whereby NOx which is contained in the exhaust gas is reduced in the exhaust purification catalyst.
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申请公布号 |
US2012131908(A1) |
申请公布日期 |
2012.05.31 |
申请号 |
US201013202694 |
申请日期 |
2010.03.15 |
申请人 |
BISAIJI YUKI;YOSHIDA KOHEI;INOUE MIKIO;TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
BISAIJI YUKI;YOSHIDA KOHEI;INOUE MIKIO |
分类号 |
F01N3/10 |
主分类号 |
F01N3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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