发明授权
- 专利标题: Exhaust gas purification apparatus
- 专利标题(中): 废气净化装置
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申请号: US268946申请日: 1994-06-30
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公开(公告)号: US5497619A公开(公告)日: 1996-03-12
- 发明人: Jun Yamada , Kenji Kanehara , Toshihiko Igashira , Shingo Morishima , Toshihiro Takada , Hiroshi Hirayama
- 申请人: Jun Yamada , Kenji Kanehara , Toshihiko Igashira , Shingo Morishima , Toshihiro Takada , Hiroshi Hirayama
- 申请人地址: JPX Nishio JPX Toyota
- 专利权人: Nippon Soken, Inc.,Toyota Jidosha Kabushiki Kaisha
- 当前专利权人: Nippon Soken, Inc.,Toyota Jidosha Kabushiki Kaisha
- 当前专利权人地址: JPX Nishio JPX Toyota
- 优先权: JPX5-166985 19930706; JPX6-084781 19940422
- 主分类号: B01D53/94
- IPC分类号: B01D53/94 ; F01N3/08 ; F01N3/24 ; F01N13/02 ; F01N13/04 ; F02D41/00 ; F02D41/02 ; F02D41/14 ; F02D43/00 ; F02M25/07 ; F02M5/06 ; F01N3/28
摘要:
A bent portion (adsorption box) is formed in part of an exhaust pipe connecting exhaust ports and a catalyst for purifying HC or the like in the exhaust gas, and a HC adsorbent of a honeycomb structure is placed forward with respect to the direction in which the exhaust gas travels straight without turning at the bent portion. The exhaust gas flowing from the exhaust ports, turns, and flows into the exhaust pipe, but HC having a large particle size travels straight along rectifier blades to be adsorbed by the HC adsorbent and held for a while. During such process, the catalyst connected to the exhaust pipe is heated up to be activated, thereby for purifying the HC or the like which is desorbed by the temperature rise of the adsorbent. Another HC catalyst may be carried in the front of the adsorbent that is easily heated to a high temperature, or an EGR passage including an EGR control valve may be connected downstream from the adsorbent.
公开/授权文献
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