发明授权
- 专利标题： Exhaust purification device of internal combustion engine
- 专利标题（中）： 内燃机排气净化装置
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申请号： US196144申请日： 1994-02-14
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公开(公告)号： US5450722A公开(公告)日： 1995-09-19
- 发明人: Shinichi Takeshima , Toshiaki Tanaka , Satoshi Iguchi , Kenji Katoh , Tetsuro Kihara
- 申请人： Shinichi Takeshima , Toshiaki Tanaka , Satoshi Iguchi , Kenji Katoh , Tetsuro Kihara
- 申请人地址： JPX Toyota
- 专利权人： Toyota Jidosha Kabushiki Kaisha
- 当前专利权人： Toyota Jidosha Kabushiki Kaisha
- 当前专利权人地址： JPX Toyota
- 优先权： JPX4-177666 19920612; JPX4-190214 19920625
- 主分类号： B01D53/04
- IPC分类号： B01D53/04 ; B01D53/94 ; F01N3/08 ; F01N3/20 ; F01N9/00 ; F01N13/02 ; F02B1/04 ; F02D41/02 ; F02D41/14
摘要：
A NO.sub.x absorbent (17) is disposed in an exhaust passage of an internal combustion engine. This NO.sub.x absorbent (17) absorbs the NO.sub.x when the air-fuel ratio of the exhaust gas flowing into the NO.sub.x absorbent (17) is lean and releases the absorbed NO.sub.x when the air-fuel ratio of the exhaust gas flowing into the NO.sub.x absorbent (17) becomes rich. When making the air-fuel ratio of the exhaust gas flowing into the NO.sub.x absorbent (17) rich to release the NO.sub.x from the NO.sub.x absorbent (17), the degree of richness is made larger and the time the ratio is made rich is made shorter the higher the temperature of the NO.sub.x absorbent (17).
公开/授权文献
- US4432645A Forward-scatter visibility meter 公开/授权日：1984-02-21
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