发明申请
- 专利标题： EXHAUST GAS PURIFICATION DEVICE
- 专利标题（中）： 排气净化装置
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申请号： US11997691申请日： 2005-08-01
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公开(公告)号： US20100218486A1公开(公告)日： 2010-09-02
- 发明人: Minehiro Murata , Yoshinaka Takeda , Nobuhiro Kondo
- 申请人： Minehiro Murata , Yoshinaka Takeda , Nobuhiro Kondo
- 申请人地址： JP Kawasaki-shi, Kanagawa
- 专利权人： MITSUBISHI FUSO TRUCK AND BUS CORPORATION
- 当前专利权人： MITSUBISHI FUSO TRUCK AND BUS CORPORATION
- 当前专利权人地址： JP Kawasaki-shi, Kanagawa
- 优先权： JP2005-226596 20050804
- 国际申请： PCT/JP2006/315193 WO 20050801
- 主分类号： F01N9/00
- IPC分类号： F01N9/00 ; F01N3/10
摘要：
An exhaust gas purification device includes a NOx adsorption catalyst (36) and HC supply means (48) for adding HC to the exhaust gas flowing to the NOx adsorption catalyst (36). The HC supply means (48) is controlled first to supply an amount of HC required to keep the temperature of the NOx adsorption catalyst (36) at a second temperature which is derived by subtracting a temperature rise caused by rich spike from a first temperature predetermined as a temperature necessary for S purge, thereby increasing the temperature of the NOx adsorption catalyst (36), and then to additionally perform the rich spike for the S purge while continuing the HC supply.
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