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公开(公告)号:US07849674B2
公开(公告)日:2010-12-14
申请号:US10572558
申请日:2004-09-02
申请人: Kouji Masuda , Kiminobu Hirata , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
发明人: Kouji Masuda , Kiminobu Hirata , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
IPC分类号: F01N3/00
CPC分类号: F01N3/208 , B01D53/9409 , B01D2251/2062 , F01N3/105 , F01N3/106 , F01N3/206 , F01N11/002 , F01N13/009 , F01N13/0097 , F01N2610/02 , F01N2610/08 , F01N2610/10 , F01N2610/1406 , F01N2610/1486 , Y02T10/24 , Y02T10/47
摘要: A NOx reduction catalyst and an ammonia slip oxidation catalyst are disposed in an exhaust system in this order, and also, an electric fan is disposed on piping which communicates an upper space of a storage tank storing therein a reducing agent with the exhaust upstream of the NOx reduction catalyst. Then, when the temperature of the ammonia slip oxidation catalyst reaches or exceeds the temperature for activating a catalyst thereof, the electric fan is operated for a predetermined period of time, so that the gas (ammonia series gas) in the upper space of the storage tank is forcibly discharged to the upstream side of the NOx reduction catalyst. Further, a discharge-forcing device, such as an electric fan or the like, forcibly discharging the gas in the upper space of the storage tank, an adsorbing device temporarily adsorbing thereto the forcibly discharged gas and an oxidation catalyst oxidizing the gas desorbed from the adsorbing device, may be disposed to the storage tank in this order.
摘要翻译: 在排气系统中依次配置NOx还原催化剂和氨滑移式氧化催化剂,并且还将电风扇设置在将储存有还原剂的储罐的上部空间连通到上游的排气管 NOx还原催化剂。 然后,当氨滑动氧化催化剂的温度达到或超过其催化剂的活化温度时,电风扇运转预定的时间,使得储存器的上部空间中的气体(氨气系列气体) 罐被强制排出到NOx还原催化剂的上游侧。 此外,诸如电动风扇等的放电装置强制地排出储罐上部空间中的气体,临时吸附到强制排出气体的吸附装置和氧化从所述储存罐解吸的气体的氧化催化剂 吸附装置可以按顺序设置在储罐上。
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公开(公告)号:US20070092413A1
公开(公告)日:2007-04-26
申请号:US10572573
申请日:2004-09-17
申请人: Kiminobu Hirata , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
发明人: Kiminobu Hirata , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
IPC分类号: B01D50/00
CPC分类号: F01N3/208 , F01N2240/02 , F01N2240/16 , F01N2260/024 , F01N2610/02 , F01N2610/10 , F01N2610/11 , F01N2610/1453 , F01N2610/1486 , F01N2900/1811 , F01P2060/16 , F01P2060/18 , Y02T10/24
摘要: An engine exhaust emission purification apparatus for reducing and purifying NOx in the exhaust emission by using a liquid reducing agent having a temperature maintenance device for maintaining a temperature of at least a part of a liquid reducing agent supply system configured by an injection nozzle and piping of the injection nozzle at a temperature lower than a boiling point of a solvent of the liquid reducing agent or equal to or higher than a melting point of dissolved matter in which the liquid reducing agent existing in the liquid reducing agent supply system conducts heat exchange with the liquid reducing agent supply system thereby being maintained at a temperature lower than the boiling point of the solvent or equal to or higher than the melting point of the dissolved matter and resultantly, occurrence of precipitation of the dissolved matter due to evaporation of only the solvent in the liquid reducing agent supply system does not occur, and even If precipitation of the dissolved matter occurs, the dissolved matter per se is melt away to prevent an injection hole of the injection nozzle from being clogged.
摘要翻译: 一种用于通过使用具有温度维持装置的液体还原剂来还原和净化排气中的NOx的发动机废气排放净化装置,其用于维持由喷嘴和管道构成的至少一部分液体还原剂供给系统的温度 所述注射喷嘴在低于所述液体还原剂的溶剂的沸点的温度下或者等于或高于存在于所述液体还原剂供应系统中的液体还原剂与所述液体还原剂供应系统进行热交换的溶解物质的熔点 液体还原剂供应系统由此保持在低于溶剂沸点的温度或等于或高于溶解物的熔点,并且因此仅由溶剂蒸发引起的溶解物质沉淀 液体还原剂的供给系统不会发生,甚至如果沉淀出来 发生腐蚀物质,溶解物本身被熔化,以防止喷嘴的注入孔被堵塞。
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公开(公告)号:US08578703B2
公开(公告)日:2013-11-12
申请号:US12954337
申请日:2010-11-24
申请人: Kiminobu Hirata , Nobuhiko Masaki , Hisashi Akagawa , Yuji Yajima
发明人: Kiminobu Hirata , Nobuhiko Masaki , Hisashi Akagawa , Yuji Yajima
IPC分类号: F01N3/00
CPC分类号: F01N3/2066 , B01D53/9409 , F01N3/206 , F01N3/208 , F01N2610/02 , F01N2610/10 , F01N2610/1406 , F01N2610/1453 , F01N2610/1466 , F01N2610/1486 , F01N2900/1811 , F01N2900/1818 , Y02T10/24
摘要: In an exhaust emission purifying apparatus for an internal combustion engine, for adding a reducing agent for NOx to the exhaust gas to thereby purify NOx in the exhaust gas, the mixing of the reducing agent injected by an injection nozzle with the exhaust gas is accelerated. To this end, in the apparatus of the present invention, the injection nozzle for the urea water is disposed to be opposite to the flow of the exhaust gas, or to face upward in a vertical direction.
摘要翻译: 在用于内燃机的排气净化装置中,为了将排气中的NOx添加到废气中,为了净化排气中的NOx,能够加速由喷嘴喷射的还原剂与废气的混合。 为此,在本发明的装置中,尿素水的注入喷嘴配置成与排气的流动相反,或者在垂直方向上面向上。
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公开(公告)号:US08209958B2
公开(公告)日:2012-07-03
申请号:US12388419
申请日:2009-02-18
申请人: Kiminobu Hirata , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
发明人: Kiminobu Hirata , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
IPC分类号: F01N3/00
CPC分类号: F01N3/208 , F01N2240/02 , F01N2240/16 , F01N2260/024 , F01N2610/02 , F01N2610/10 , F01N2610/11 , F01N2610/1453 , F01N2610/1486 , F01N2900/1811 , F01P2060/16 , F01P2060/18 , Y02T10/24
摘要: An engine exhaust emission purification apparatus for reducing and purifying NOx in the exhaust emission by using a liquid reducing agent having a temperature maintenance device for maintaining a temperature of at least a part of a liquid reducing agent supply system configured by an injection nozzle and piping of the injection nozzle at a temperature lower than a boiling point of a solvent of the liquid reducing agent or equal to or higher than a melting point of dissolved matter in which the liquid reducing agent existing in the liquid reducing agent supply system conducts heat exchange with the liquid reducing agent supply system thereby being maintained at a temperature lower than the boiling point of the solvent or equal to or higher than the melting point of the dissolved matter and resultantly, occurrence of precipitation of the dissolved matter due to evaporation of only the solvent in the liquid reducing agent supply system does not occur, and even if precipitation of the dissolved matter occurs, the dissolved matter per se is melt away to prevent an injection hole of the injection nozzle from being clogged.
摘要翻译: 一种用于通过使用具有温度维持装置的液体还原剂来还原和净化排气中的NOx的发动机废气排放净化装置,其用于维持由喷嘴和管道构成的至少一部分液体还原剂供给系统的温度 所述注射喷嘴在低于所述液体还原剂的溶剂的沸点的温度下或者等于或高于存在于所述液体还原剂供应系统中的液体还原剂与所述液体还原剂供应系统进行热交换的溶解物质的熔点 液体还原剂供应系统由此保持在低于溶剂沸点的温度或等于或高于溶解物的熔点,并且因此仅由溶剂蒸发引起的溶解物质沉淀 液体还原剂供应系统不会发生,即使是沉淀 发生腐蚀物质,溶解物本身被熔化,以防止喷嘴的注入孔被堵塞。
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5.
公开(公告)号:US20060283178A1
公开(公告)日:2006-12-21
申请号:US11512379
申请日:2006-08-30
申请人: Hisashi Akagawa
发明人: Hisashi Akagawa
IPC分类号: F01N3/00
CPC分类号: F01N3/2053 , B01D53/9431 , B01D53/944 , B01D53/9495 , F01N3/023 , F01N3/0231 , F01N3/025 , F01N3/027 , F01N3/035 , F01N3/103 , F01N3/206 , F01N3/2066 , F01N3/208 , F01N9/002 , F01N13/009 , F01N13/0093 , F01N13/0097 , F01N2410/04 , F01N2430/08 , F01N2430/085 , F01N2610/02 , F02B29/04 , F02B37/00
摘要: A particulate filter 8 is disposed in an exhaust passage 7 of an internal combustion engine 1, and a reduction catalyst 9 is disposed downstream of the particulate filter 8. A bypass passage 12 for bypassing the reduction catalyst 9 and a flow path switching valve 13 which switches a flow path for the exhaust gas which has passed through the particulate filter 8 between the exhaust passage 7 and the bypass passage 12 are disposed. A control unit 301 controls the flow path switching valve 13 in association with a temperature Texh of the exhaust gas which has passed through the particulate filter 8.
摘要翻译: 微粒过滤器8设置在内燃机1的排气通道7中,还原催化剂9设置在微粒过滤器8的下游。 设置旁路通路12,旁通通路12和还原催化剂9的流路切换阀13,该流路切换阀13将通过了排气通路7与旁路通路12之间的微粒过滤器8的废气流路切换。 控制单元301与通过颗粒过滤器8的废气的温度Texh相关联地控制流路切换阀13。
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6.
公开(公告)号:US20110067385A1
公开(公告)日:2011-03-24
申请号:US12954343
申请日:2010-11-24
申请人: Kiminobu HIRATA , Nobuhiko Masaki , Hisashi Akagawa , Yuji Yajima
发明人: Kiminobu HIRATA , Nobuhiko Masaki , Hisashi Akagawa , Yuji Yajima
IPC分类号: F01N3/20
CPC分类号: F01N3/2066 , B01D53/9409 , F01N3/206 , F01N3/208 , F01N2610/02 , F01N2610/10 , F01N2610/1406 , F01N2610/1453 , F01N2610/1466 , F01N2610/1486 , F01N2900/1811 , F01N2900/1818 , Y02T10/24
摘要: In an exhaust emission purifying apparatus for an internal combustion engine, for adding a reducing agent for NOx to the exhaust gas to thereby purify NOx in the exhaust gas, the mixing of the reducing agent injected by an injection nozzle with the exhaust gas is accelerated. To this end, in the apparatus of the present invention, the injection nozzle for the urea water is disposed to be opposite to the flow of the exhaust gas, or to face upward in a vertical direction.
摘要翻译: 在用于内燃机的排气净化装置中,为了将排气中的NOx添加到废气中,为了净化排气中的NOx,能够加速由喷嘴喷射的还原剂与废气的混合。 为此,在本发明的装置中,尿素水的注入喷嘴配置成与排气的流动相反,或者在垂直方向上面向上。
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公开(公告)号:US20090293460A1
公开(公告)日:2009-12-03
申请号:US12538065
申请日:2009-08-07
申请人: Kiminobu HIRATA , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
发明人: Kiminobu HIRATA , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
CPC分类号: F01N3/208 , F01N2240/02 , F01N2240/16 , F01N2260/024 , F01N2610/02 , F01N2610/10 , F01N2610/11 , F01N2610/1453 , F01N2610/1486 , F01N2900/1811 , F01P2060/16 , F01P2060/18 , Y02T10/24
摘要: An engine exhaust emission purification apparatus for reducing and purifying NOx in the exhaust emission by using a liquid reducing agent having a temperature maintenance device for maintaining a temperature of at least a part of a liquid reducing agent supply system configured by an injection nozzle and piping of the injection nozzle at a temperature lower than a boiling point of a solvent of the liquid reducing agent or equal to or higher than a melting point of dissolved matter in which the liquid reducing agent existing in the liquid reducing agent supply system conducts heat exchange with the liquid reducing agent supply system thereby being maintained at a temperature lower than the boiling point of the solvent or equal to or higher than the melting point of the dissolved matter and resultantly, occurrence of precipitation of the dissolved matter due to evaporation of only the solvent in the liquid reducing agent supply system does not occur, and even if precipitation of the dissolved matter occurs, the dissolved matter per se is melt away to prevent an injection hole of the injection nozzle from being clogged.
摘要翻译: 一种用于通过使用具有温度维持装置的液体还原剂来还原和净化排气中的NOx的发动机废气排放净化装置,其用于维持由喷嘴和管道构成的至少一部分液体还原剂供给系统的温度 所述注射喷嘴在低于所述液体还原剂的溶剂的沸点的温度下或者等于或高于存在于所述液体还原剂供应系统中的液体还原剂与所述液体还原剂供应系统进行热交换的溶解物质的熔点 液体还原剂供应系统由此保持在低于溶剂沸点的温度或等于或高于溶解物的熔点,并且因此仅由溶剂蒸发引起的溶解物质沉淀 液体还原剂供应系统不会发生,即使是沉淀 发生腐蚀物质,溶解物本身被熔化,以防止喷嘴的注入孔被堵塞。
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公开(公告)号:US07614213B2
公开(公告)日:2009-11-10
申请号:US10572573
申请日:2004-09-17
申请人: Kiminobu Hirata , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
发明人: Kiminobu Hirata , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
IPC分类号: F01N3/00
CPC分类号: F01N3/208 , F01N2240/02 , F01N2240/16 , F01N2260/024 , F01N2610/02 , F01N2610/10 , F01N2610/11 , F01N2610/1453 , F01N2610/1486 , F01N2900/1811 , F01P2060/16 , F01P2060/18 , Y02T10/24
摘要: An engine exhaust emission purification apparatus for reducing and purifying NOx in the exhaust emission by using a liquid reducing agent having a temperature maintenance device for maintaining a temperature of at least a part of a liquid reducing agent supply system configured by an injection nozzle and piping of the injection nozzle at a temperature lower than a boiling point of a solvent of the liquid reducing agent or equal to or higher than a melting point of dissolved matter in which the liquid reducing agent existing in the liquid reducing agent supply system conducts heat exchange with the liquid reducing agent supply system thereby being maintained at a temperature lower than the boiling point of the solvent or equal to or higher than the melting point of the dissolved matter and resultantly, occurrence of precipitation of the dissolved matter due to evaporation of only the solvent in the liquid reducing agent supply system does not occur, and even If precipitation of the dissolved matter occurs, the dissolved matter per se is melt away to prevent an injection hole of the injection nozzle from being clogged.
摘要翻译: 一种用于通过使用具有温度维持装置的液体还原剂来还原和净化排气中的NOx的发动机废气排放净化装置,其用于维持由喷嘴和管道构成的至少一部分液体还原剂供给系统的温度 所述注射喷嘴在低于所述液体还原剂的溶剂的沸点的温度下或者等于或高于存在于所述液体还原剂供应系统中的液体还原剂与所述液体还原剂供应系统进行热交换的溶解物质的熔点 液体还原剂供应系统由此保持在低于溶剂沸点的温度或等于或高于溶解物的熔点,并且因此仅由溶剂蒸发引起的溶解物质沉淀 液体还原剂的供给系统不会发生,甚至如果沉淀出来 发生腐蚀物质,溶解物本身被熔化,以防止喷嘴的注入孔被堵塞。
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公开(公告)号:US20090151335A1
公开(公告)日:2009-06-18
申请号:US12388419
申请日:2009-02-18
申请人: Kiminobu Hirata , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
发明人: Kiminobu Hirata , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
IPC分类号: F01N9/00
CPC分类号: F01N3/208 , F01N2240/02 , F01N2240/16 , F01N2260/024 , F01N2610/02 , F01N2610/10 , F01N2610/11 , F01N2610/1453 , F01N2610/1486 , F01N2900/1811 , F01P2060/16 , F01P2060/18 , Y02T10/24
摘要: An engine exhaust emission purification apparatus for reducing and purifying NOx in the exhaust emission by using a liquid reducing agent having a temperature maintenance device for maintaining a temperature of at least a part of a liquid reducing agent supply system configured by an injection nozzle and piping of the injection nozzle at a temperature lower than a boiling point of a solvent of the liquid reducing agent or equal to or higher than a melting point of dissolved matter in which the liquid reducing agent existing in the liquid reducing agent supply system conducts heat exchange with the liquid reducing agent supply system thereby being maintained at a temperature lower than the boiling point of the solvent or equal to or higher than the melting point of the dissolved matter and resultantly, occurrence of precipitation of the dissolved matter due to evaporation of only the solvent in the liquid reducing agent supply system does not occur, and even if precipitation of the dissolved matter occurs, the dissolved matter per se is melt away to prevent an injection hole of the injection nozzle from being clogged.
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公开(公告)号:US20070180816A1
公开(公告)日:2007-08-09
申请号:US10572558
申请日:2004-09-02
申请人: Kouji Masuda , Kiminohu Hirata , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
发明人: Kouji Masuda , Kiminohu Hirata , Hisashi Akagawa , Shuichi Nakamura , Hiroki Ueno , Ikuo Sakai
CPC分类号: F01N3/208 , B01D53/9409 , B01D2251/2062 , F01N3/105 , F01N3/106 , F01N3/206 , F01N11/002 , F01N13/009 , F01N13/0097 , F01N2610/02 , F01N2610/08 , F01N2610/10 , F01N2610/1406 , F01N2610/1486 , Y02T10/24 , Y02T10/47
摘要: A NOx reduction catalyst and an ammonia slip oxidation catalyst are disposed in an exhaust system in this order, and also, an electric fan is disposed on piping which communicates an upper space of a storage tank storing therein a reducing agent with the exhaust upstream of the NOx reduction catalyst. Then, when the temperature of the ammonia slip oxidation catalyst reaches or exceeds the temperature for activating a catalyst thereof, the electric fan is operated for a predetermined period of time, so that the gas (ammonia series gas) in the upper space of the storage tank is forcibly discharged to the upstream side of the NOx reduction catalyst. Further, a discharge-forcing device, such as an electric fan or the like, forcibly discharging the gas in the upper space of the storage tank, an adsorbing device temporarily adsorbing thereto the forcibly discharged gas and an oxidation catalyst oxidizing the gas desorbed from the adsorbing device, may be disposed to the storage tank in this order.
摘要翻译: 在排气系统中依次设置有NO x还原催化剂和氨滑移氧化催化剂,并且还将电风扇设置在连接储存在其中的储罐的上部空间的管道上 还原剂与NO x还原催化剂上游排气。 然后,当氨滑动氧化催化剂的温度达到或超过其催化剂的活化温度时,电风扇运转预定的时间,使得储存器的上部空间中的气体(氨气系列气体) 罐被强制排出到NO x还原催化剂的上游侧。 此外,诸如电动风扇等的放电装置强制地排出储罐上部空间中的气体,临时吸附到强制排出气体的吸附装置和氧化从所述储存罐解吸的气体的氧化催化剂 吸附装置可以按顺序设置在储罐上。
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