| 发明名称 |
SULFUR COMPONENT DETECTING DEVICE |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sulfur component detecting device for estimating a retaining amount of SO<SB POS="POST">X</SB>retained in a SO<SB POS="POST">X</SB>retaining portion, which can detect an integrated amount of SO<SB POS="POST">X</SB>having passed through an exhaust passage during a relatively-long period even if a sulfur poisoning recovery process of a NO<SB POS="POST">X</SB>catalytic device arranged at a downstream side is performed. <P>SOLUTION: A sulfur component detecting device 4 includes a retaining portion capable of retaining SO<SB POS="POST">X</SB>in exhaust gas passing through an exhaust passage 1 and estimates a retaining amount of SO<SB POS="POST">X</SB>retained in the SO<SB POS="POST">X</SB>retaining portion. A NO<SB POS="POST">X</SB>catalytic device 2 for retaining NO<SB POS="POST">X</SB>and SO<SB POS="POST">X</SB>in the exhaust gas is arranged in the exhaust passage such that the retained SO<SB POS="POST">X</SB>is not released from the retaining portion during a recovery process of the NO<SB POS="POST">X</SB>catalytic device which releases the retained SO<SB POS="POST">X</SB>from the NO<SB POS="POST">X</SB>catalytic device by heating up the NO<SB POS="POST">X</SB>catalytic device to be a preset temperature. <P>COPYRIGHT: (C)2012,JPO&INPIT |
| 申请公布号 |
JP2011242236(A) |
申请公布日期 |
2011.12.01 |
| 申请号 |
JP20100114111 |
申请日期 |
2010.05.18 |
| 申请人 |
TOYOTA MOTOR CORP |
发明人 |
TSUKAMOTO YOSHIHISA;NISHIOKA HIROMASA;OSHIKAWA KATSUHIKO;OTSUKI HIROSHI;MATSUO JUNICHI |
| 分类号 |
G01N31/00;B01D53/86;B01D53/94 |
主分类号 |
G01N31/00 |
| 代理机构 |
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